General Asterisk PBX channel definitions. More...
#include "asterisk/abstract_jb.h"#include "asterisk/astobj2.h"#include "asterisk/poll-compat.h"#include "asterisk/frame.h"#include "asterisk/sched.h"#include "asterisk/chanvars.h"#include "asterisk/config.h"#include "asterisk/lock.h"#include "asterisk/cdr.h"#include "asterisk/utils.h"#include "asterisk/linkedlists.h"#include "asterisk/stringfields.h"#include "asterisk/datastore.h"#include "asterisk/data.h"#include "asterisk/channelstate.h"#include "asterisk/ccss.h"#include "asterisk/framehook.h"
Go to the source code of this file.
Data Structures | |
| struct | ast_bridge_config |
| bridge configuration More... | |
| struct | ast_chan_write_info_t |
| Structure to handle passing func_channel_write info to channels via setoption. More... | |
| struct | ast_channel |
| Main Channel structure associated with a channel. More... | |
| struct | ast_channel_tech |
| Structure to describe a channel "technology", ie a channel driver See for examples: More... | |
| struct | ast_generator |
| struct | ast_group_info |
| channel group info More... | |
| struct | ast_party_caller |
| Caller Party information. More... | |
| struct | ast_party_connected_line |
| Connected Line/Party information. More... | |
| struct | ast_party_dialed |
| Dialed/Called Party information. More... | |
| struct | ast_party_id |
| Information needed to identify an endpoint in a call. More... | |
| struct | ast_party_name |
| Information needed to specify a name in a call. More... | |
| struct | ast_party_number |
| Information needed to specify a number in a call. More... | |
| struct | ast_party_redirecting |
| Redirecting Line information. RDNIS (Redirecting Directory Number Information Service) Where a call diversion or transfer was invoked. More... | |
| struct | ast_party_subaddress |
| Information needed to specify a subaddress in a call. More... | |
| struct | ast_set_party_caller |
| Indicate what information in ast_party_caller should be set. More... | |
| struct | ast_set_party_connected_line |
| Indicate what information in ast_party_connected_line should be set. More... | |
| struct | ast_set_party_id |
| Indicate what information in ast_party_id should be set. More... | |
| struct | ast_set_party_redirecting |
| Indicate what information in ast_party_redirecting should be set. More... | |
| struct | ast_channel::autochans |
| struct | ast_channel::datastores |
| struct | outgoing_helper |
Defines | |
| #define | AST_AGENT_FD (AST_MAX_FDS-3) |
| #define | AST_ALERT_FD (AST_MAX_FDS-1) |
| #define | AST_BRIDGE_DTMF_CHANNEL_0 (1 << 0) |
| Report DTMF on channel 0. | |
| #define | AST_BRIDGE_DTMF_CHANNEL_1 (1 << 1) |
| Report DTMF on channel 1. | |
| #define | AST_BRIDGE_IGNORE_SIGS (1 << 4) |
| Ignore all signal frames except NULL. | |
| #define | AST_BRIDGE_REC_CHANNEL_0 (1 << 2) |
| Return all voice frames on channel 0. | |
| #define | AST_BRIDGE_REC_CHANNEL_1 (1 << 3) |
| Return all voice frames on channel 1. | |
| #define | AST_CHAN_WRITE_INFO_T_VERSION 1 |
| ast_chan_write_info_t version. Must be incremented if structure is changed | |
| #define | ast_channel_alloc(needqueue, state, cid_num, cid_name, acctcode, exten, context, linkedid, amaflag,...) |
| Create a channel structure. | |
| #define | ast_channel_lock(chan) ao2_lock(chan) |
| #define | ast_channel_lock_both(chan1, chan2) |
| Lock two channels. | |
| #define | AST_CHANNEL_NAME 80 |
| #define | ast_channel_ref(c) ({ ao2_ref(c, +1); (c); }) |
| Increase channel reference count. | |
| #define | ast_channel_trylock(chan) ao2_trylock(chan) |
| #define | ast_channel_unlock(chan) ao2_unlock(chan) |
| #define | ast_channel_unref(c) ({ ao2_ref(c, -1); (struct ast_channel *) (NULL); }) |
| Decrease channel reference count. | |
| #define | AST_GENERATOR_FD (AST_MAX_FDS-4) |
| #define | AST_MAX_CONTEXT 80 |
| #define | AST_MAX_EXTENSION 80 |
| #define | AST_MAX_FDS 10 |
| #define | AST_TIMING_FD (AST_MAX_FDS-2) |
| #define | CHECK_BLOCKING(c) |
| #define | DATASTORE_INHERIT_FOREVER INT_MAX |
| #define | DEBUGCHAN_FLAG 0x80000000 |
| #define | FRAMECOUNT_INC(x) ( ((x) & DEBUGCHAN_FLAG) | (((x)+1) & ~DEBUGCHAN_FLAG) ) |
| #define | MAX_LANGUAGE 40 |
| #define | MAX_MUSICCLASS 80 |
Typedefs | |
| typedef int(* | ast_acf_read2_fn_t )(struct ast_channel *, const char *, char *, struct ast_str **, ssize_t) |
| Typedef for a custom read2 function. | |
| typedef int(* | ast_acf_read_fn_t )(struct ast_channel *, const char *, char *, char *, size_t) |
| Typedef for a custom read function. | |
| typedef int(* | ast_acf_write_fn_t )(struct ast_channel *, const char *, char *, const char *) |
| Typedef for a custom write function. | |
| typedef unsigned long long | ast_group_t |
Enumerations | |
| enum | { AST_CHAN_TP_WANTSJITTER = (1 << 0), AST_CHAN_TP_CREATESJITTER = (1 << 1) } |
| ast_channel_tech Properties More... | |
| enum | { AST_FLAG_DEFER_DTMF = (1 << 1), AST_FLAG_WRITE_INT = (1 << 2), AST_FLAG_BLOCKING = (1 << 3), AST_FLAG_ZOMBIE = (1 << 4), AST_FLAG_EXCEPTION = (1 << 5), AST_FLAG_MOH = (1 << 6), AST_FLAG_SPYING = (1 << 7), AST_FLAG_NBRIDGE = (1 << 8), AST_FLAG_IN_AUTOLOOP = (1 << 9), AST_FLAG_OUTGOING = (1 << 10), AST_FLAG_IN_DTMF = (1 << 12), AST_FLAG_EMULATE_DTMF = (1 << 13), AST_FLAG_END_DTMF_ONLY = (1 << 14), AST_FLAG_ANSWERED_ELSEWHERE = (1 << 15), AST_FLAG_MASQ_NOSTREAM = (1 << 16), AST_FLAG_BRIDGE_HANGUP_RUN = (1 << 17), AST_FLAG_BRIDGE_HANGUP_DONT = (1 << 18), AST_FLAG_DISABLE_WORKAROUNDS = (1 << 20) } |
| ast_channel flags More... | |
| enum | { AST_FEATURE_PLAY_WARNING = (1 << 0), AST_FEATURE_REDIRECT = (1 << 1), AST_FEATURE_DISCONNECT = (1 << 2), AST_FEATURE_ATXFER = (1 << 3), AST_FEATURE_AUTOMON = (1 << 4), AST_FEATURE_PARKCALL = (1 << 5), AST_FEATURE_AUTOMIXMON = (1 << 6), AST_FEATURE_NO_H_EXTEN = (1 << 7), AST_FEATURE_WARNING_ACTIVE = (1 << 8) } |
| ast_bridge_config flags More... | |
| enum | { AST_SOFTHANGUP_DEV = (1 << 0), AST_SOFTHANGUP_ASYNCGOTO = (1 << 1), AST_SOFTHANGUP_SHUTDOWN = (1 << 2), AST_SOFTHANGUP_TIMEOUT = (1 << 3), AST_SOFTHANGUP_APPUNLOAD = (1 << 4), AST_SOFTHANGUP_EXPLICIT = (1 << 5), AST_SOFTHANGUP_UNBRIDGE = (1 << 6), AST_SOFTHANGUP_ALL = (0xFFFFFFFF) } |
| enum | ast_bridge_result { AST_BRIDGE_COMPLETE = 0, AST_BRIDGE_FAILED = -1, AST_BRIDGE_FAILED_NOWARN = -2, AST_BRIDGE_RETRY = -3 } |
| enum | ast_channel_adsicpe { AST_ADSI_UNKNOWN, AST_ADSI_AVAILABLE, AST_ADSI_UNAVAILABLE, AST_ADSI_OFFHOOKONLY } |
| enum | AST_PARTY_CHAR_SET { AST_PARTY_CHAR_SET_UNKNOWN = 0, AST_PARTY_CHAR_SET_ISO8859_1 = 1, AST_PARTY_CHAR_SET_WITHDRAWN = 2, AST_PARTY_CHAR_SET_ISO8859_2 = 3, AST_PARTY_CHAR_SET_ISO8859_3 = 4, AST_PARTY_CHAR_SET_ISO8859_4 = 5, AST_PARTY_CHAR_SET_ISO8859_5 = 6, AST_PARTY_CHAR_SET_ISO8859_7 = 7, AST_PARTY_CHAR_SET_ISO10646_BMPSTRING = 8, AST_PARTY_CHAR_SET_ISO10646_UTF_8STRING = 9 } |
| enum | ast_t38_state { T38_STATE_UNAVAILABLE, T38_STATE_UNKNOWN, T38_STATE_NEGOTIATING, T38_STATE_REJECTED, T38_STATE_NEGOTIATED } |
| Possible T38 states on channels. More... | |
| enum | channelreloadreason { CHANNEL_MODULE_LOAD, CHANNEL_MODULE_RELOAD, CHANNEL_CLI_RELOAD, CHANNEL_MANAGER_RELOAD } |
| Channel reload reasons for manager events at load or reload of configuration. More... | |
Functions | |
| int | __ast_answer (struct ast_channel *chan, unsigned int delay, int cdr_answer) |
| Answer a channel, with a selectable delay before returning. | |
| struct ast_channel *attribute_malloc | __ast_channel_alloc (int needqueue, int state, const char *cid_num, const char *cid_name, const char *acctcode, const char *exten, const char *context, const char *linkedid, const int amaflag, const char *file, int line, const char *function, const char *name_fmt,...) |
| Create a channel structure. | |
| struct ast_channel * | __ast_request_and_dial (const char *type, format_t format, const struct ast_channel *requestor, void *data, int timeout, int *reason, const char *cid_num, const char *cid_name, struct outgoing_helper *oh) |
| Request a channel of a given type, with data as optional information used by the low level module and attempt to place a call on it. | |
| int | ast_activate_generator (struct ast_channel *chan, struct ast_generator *gen, void *params) |
| int | ast_active_channels (void) |
| returns number of active/allocated channels | |
| static int | ast_add_fd (struct pollfd *pfd, int fd) |
| if fd is a valid descriptor, set *pfd with the descriptor | |
| int | ast_answer (struct ast_channel *chan) |
| Answer a channel. | |
| int | ast_autoservice_ignore (struct ast_channel *chan, enum ast_frame_type ftype) |
| Ignore certain frame types. | |
| int | ast_autoservice_start (struct ast_channel *chan) |
| Automatically service a channel for us... | |
| int | ast_autoservice_stop (struct ast_channel *chan) |
| Stop servicing a channel for us... | |
| void | ast_begin_shutdown (int hangup) |
| format_t | ast_best_codec (format_t fmts) |
| Pick the best audio codec. | |
| struct ast_channel * | ast_bridged_channel (struct ast_channel *chan) |
| Find bridged channel. | |
| int | ast_call (struct ast_channel *chan, char *addr, int timeout) |
| Make a call. | |
| struct ast_channel * | ast_call_forward (struct ast_channel *caller, struct ast_channel *orig, int *timeout, format_t format, struct outgoing_helper *oh, int *outstate) |
| Forwards a call to a new channel specified by the original channel's call_forward str. If possible, the new forwarded channel is created and returned while the original one is terminated. | |
| void | ast_cancel_shutdown (void) |
| Cancel a shutdown in progress. | |
| const char * | ast_cause2str (int state) attribute_pure |
| Gives the string form of a given cause code. | |
| void | ast_change_name (struct ast_channel *chan, const char *newname) |
| Change channel name. | |
| int | ast_channel_bridge (struct ast_channel *c0, struct ast_channel *c1, struct ast_bridge_config *config, struct ast_frame **fo, struct ast_channel **rc) |
| Bridge two channels together. | |
| struct ast_channel * | ast_channel_callback (ao2_callback_data_fn *cb_fn, void *arg, void *data, int ao2_flags) |
| Call a function with every active channel. | |
| int | ast_channel_cc_params_init (struct ast_channel *chan, const struct ast_cc_config_params *base_params) |
| Set up datastore with CCSS parameters for a channel. | |
| void | ast_channel_clear_softhangup (struct ast_channel *chan, int flag) |
| Clear a set of softhangup flags from a channel. | |
| int | ast_channel_cmpwhentohangup (struct ast_channel *chan, time_t offset) |
| Compare a offset with the settings of when to hang a channel up. | |
| int | ast_channel_cmpwhentohangup_tv (struct ast_channel *chan, struct timeval offset) |
| Compare a offset with the settings of when to hang a channel up. | |
| int | ast_channel_connected_line_macro (struct ast_channel *autoservice_chan, struct ast_channel *macro_chan, const void *connected_info, int caller, int frame) |
| Run a connected line interception macro and update a channel's connected line information. | |
| int | ast_channel_data_add_structure (struct ast_data *tree, struct ast_channel *chan, int add_bridged) |
| Insert into an astdata tree, the channel structure. | |
| int | ast_channel_data_cmp_structure (const struct ast_data_search *tree, struct ast_channel *chan, const char *structure_name) |
| Compare to channel structures using the data api. | |
| int | ast_channel_datastore_add (struct ast_channel *chan, struct ast_datastore *datastore) |
| Add a datastore to a channel. | |
| struct ast_datastore *attribute_malloc | ast_channel_datastore_alloc (const struct ast_datastore_info *info, const char *uid) |
| Create a channel data store object. | |
| struct ast_datastore * | ast_channel_datastore_find (struct ast_channel *chan, const struct ast_datastore_info *info, const char *uid) |
| Find a datastore on a channel. | |
| int | ast_channel_datastore_free (struct ast_datastore *datastore) |
| Free a channel data store object. | |
| int | ast_channel_datastore_inherit (struct ast_channel *from, struct ast_channel *to) |
| Inherit datastores from a parent to a child. | |
| int | ast_channel_datastore_remove (struct ast_channel *chan, struct ast_datastore *datastore) |
| Remove a datastore from a channel. | |
| int | ast_channel_defer_dtmf (struct ast_channel *chan) |
| Defers DTMF so that you only read things like hangups and audio. | |
| int | ast_channel_early_bridge (struct ast_channel *c0, struct ast_channel *c1) |
| Bridge two channels together (early) | |
| int | ast_channel_get_cc_agent_type (struct ast_channel *chan, char *agent_type, size_t size) |
| Find the appropriate CC agent type to use given a channel. | |
| struct ast_cc_config_params * | ast_channel_get_cc_config_params (struct ast_channel *chan) |
| Get the CCSS parameters from a channel. | |
| int | ast_channel_get_device_name (struct ast_channel *chan, char *device_name, size_t name_buffer_length) |
| Get a device name given its channel structure. | |
| static enum ast_t38_state | ast_channel_get_t38_state (struct ast_channel *chan) |
| Retrieves the current T38 state of a channel. | |
| void | ast_channel_inherit_variables (const struct ast_channel *parent, struct ast_channel *child) |
| Inherits channel variable from parent to child channel. | |
| int | ast_channel_make_compatible (struct ast_channel *c0, struct ast_channel *c1) |
| Makes two channel formats compatible. | |
| int | ast_channel_masquerade (struct ast_channel *original, struct ast_channel *clone) |
| Weird function made for call transfers. | |
| int | ast_channel_queryoption (struct ast_channel *channel, int option, void *data, int *datalen, int block) |
| Checks the value of an option. | |
| void | ast_channel_queue_connected_line_update (struct ast_channel *chan, const struct ast_party_connected_line *connected, const struct ast_set_party_connected_line *update) |
| Queue a connected line update frame on a channel. | |
| void | ast_channel_queue_redirecting_update (struct ast_channel *chan, const struct ast_party_redirecting *redirecting, const struct ast_set_party_redirecting *update) |
| Queue a redirecting update frame on a channel. | |
| const char * | ast_channel_reason2str (int reason) |
| return an english explanation of the code returned thru __ast_request_and_dial's 'outstate' argument | |
| int | ast_channel_redirecting_macro (struct ast_channel *autoservice_chan, struct ast_channel *macro_chan, const void *redirecting_info, int is_caller, int is_frame) |
| Run a redirecting interception macro and update a channel's redirecting information. | |
| int | ast_channel_register (const struct ast_channel_tech *tech) |
| Register a channel technology (a new channel driver) Called by a channel module to register the kind of channels it supports. | |
| struct ast_channel * | ast_channel_release (struct ast_channel *chan) |
| Unlink and release reference to a channel. | |
| int | ast_channel_sendhtml (struct ast_channel *channel, int subclass, const char *data, int datalen) |
| Sends HTML on given channel Send HTML or URL on link. | |
| int | ast_channel_sendurl (struct ast_channel *channel, const char *url) |
| Sends a URL on a given link Send URL on link. | |
| void | ast_channel_set_caller (struct ast_channel *chan, const struct ast_party_caller *caller, const struct ast_set_party_caller *update) |
| Set the caller id information in the Asterisk channel. | |
| void | ast_channel_set_caller_event (struct ast_channel *chan, const struct ast_party_caller *caller, const struct ast_set_party_caller *update) |
| Set the caller id information in the Asterisk channel and generate an AMI event if the caller id name or number changed. | |
| void | ast_channel_set_connected_line (struct ast_channel *chan, const struct ast_party_connected_line *connected, const struct ast_set_party_connected_line *update) |
| Set the connected line information in the Asterisk channel. | |
| void | ast_channel_set_fd (struct ast_channel *chan, int which, int fd) |
| void | ast_channel_set_linkgroup (struct ast_channel *chan, struct ast_channel *peer) |
| propagate the linked id between chan and peer | |
| void | ast_channel_set_redirecting (struct ast_channel *chan, const struct ast_party_redirecting *redirecting, const struct ast_set_party_redirecting *update) |
| Set the redirecting id information in the Asterisk channel. | |
| int | ast_channel_setoption (struct ast_channel *channel, int option, void *data, int datalen, int block) |
| Sets an option on a channel. | |
| void | ast_channel_setwhentohangup (struct ast_channel *chan, time_t offset) |
| Set when to hang a channel up. | |
| void | ast_channel_setwhentohangup_tv (struct ast_channel *chan, struct timeval offset) |
| Set when to hang a channel up. | |
| struct ast_silence_generator * | ast_channel_start_silence_generator (struct ast_channel *chan) |
| Starts a silence generator on the given channel. | |
| void | ast_channel_stop_silence_generator (struct ast_channel *chan, struct ast_silence_generator *state) |
| Stops a previously-started silence generator on the given channel. | |
| int | ast_channel_supports_html (struct ast_channel *channel) |
| Checks for HTML support on a channel. | |
| int | ast_channel_transfer_masquerade (struct ast_channel *target_chan, const struct ast_party_connected_line *target_id, int target_held, struct ast_channel *transferee_chan, const struct ast_party_connected_line *transferee_id, int transferee_held) |
| Setup a masquerade to transfer a call. | |
| void | ast_channel_undefer_dtmf (struct ast_channel *chan) |
| Unset defer DTMF flag on channel. | |
| void | ast_channel_unregister (const struct ast_channel_tech *tech) |
| Unregister a channel technology. | |
| void | ast_channel_update_connected_line (struct ast_channel *chan, const struct ast_party_connected_line *connected, const struct ast_set_party_connected_line *update) |
| Indicate that the connected line information has changed. | |
| void | ast_channel_update_redirecting (struct ast_channel *chan, const struct ast_party_redirecting *redirecting, const struct ast_set_party_redirecting *update) |
| Indicate that the redirecting id has changed. | |
| struct ast_variable * | ast_channeltype_list (void) |
| return an ast_variable list of channeltypes | |
| int | ast_check_hangup (struct ast_channel *chan) |
| Check to see if a channel is needing hang up. | |
| int | ast_check_hangup_locked (struct ast_channel *chan) |
| int | ast_connected_line_build_data (unsigned char *data, size_t datalen, const struct ast_party_connected_line *connected, const struct ast_set_party_connected_line *update) |
| Build the connected line information data frame. | |
| void | ast_connected_line_copy_from_caller (struct ast_party_connected_line *dest, const struct ast_party_caller *src) |
| Copy the caller information to the connected line information. | |
| void | ast_connected_line_copy_to_caller (struct ast_party_caller *dest, const struct ast_party_connected_line *src) |
| Copy the connected line information to the caller information. | |
| int | ast_connected_line_parse_data (const unsigned char *data, size_t datalen, struct ast_party_connected_line *connected) |
| Parse connected line indication frame data. | |
| void | ast_deactivate_generator (struct ast_channel *chan) |
| int | ast_do_masquerade (struct ast_channel *chan) |
| Start masquerading a channel. | |
| struct ast_channel * | ast_dummy_channel_alloc (void) |
| Create a fake channel structure. | |
| static int | ast_fdisset (struct pollfd *pfds, int fd, int maximum, int *start) |
| Helper function for migrating select to poll. | |
| struct ast_channel_tech * | ast_get_channel_tech (const char *name) |
| Get a channel technology structure by name. | |
| ast_group_t | ast_get_group (const char *s) |
| int | ast_hangup (struct ast_channel *chan) |
| Hang up a channel. | |
| int | ast_indicate (struct ast_channel *chan, int condition) |
| Indicates condition of channel. | |
| int | ast_indicate_data (struct ast_channel *chan, int condition, const void *data, size_t datalen) |
| Indicates condition of channel, with payload. | |
| int | ast_internal_timing_enabled (struct ast_channel *chan) |
| Check if the channel can run in internal timing mode. | |
| int | ast_is_deferrable_frame (const struct ast_frame *frame) |
| Should we keep this frame for later? | |
| void | ast_party_caller_copy (struct ast_party_caller *dest, const struct ast_party_caller *src) |
| Copy the source caller information to the destination caller. | |
| void | ast_party_caller_free (struct ast_party_caller *doomed) |
| Destroy the caller party contents. | |
| void | ast_party_caller_init (struct ast_party_caller *init) |
| Initialize the given caller structure. | |
| void | ast_party_caller_set (struct ast_party_caller *dest, const struct ast_party_caller *src, const struct ast_set_party_caller *update) |
| Set the caller information based on another caller source. | |
| void | ast_party_caller_set_init (struct ast_party_caller *init, const struct ast_party_caller *guide) |
| Initialize the given caller structure using the given guide for a set update operation. | |
| void | ast_party_connected_line_collect_caller (struct ast_party_connected_line *connected, struct ast_party_caller *caller) |
| Collect the caller party information into a connected line structure. | |
| void | ast_party_connected_line_copy (struct ast_party_connected_line *dest, const struct ast_party_connected_line *src) |
| Copy the source connected line information to the destination connected line. | |
| void | ast_party_connected_line_free (struct ast_party_connected_line *doomed) |
| Destroy the connected line information contents. | |
| void | ast_party_connected_line_init (struct ast_party_connected_line *init) |
| Initialize the given connected line structure. | |
| void | ast_party_connected_line_set (struct ast_party_connected_line *dest, const struct ast_party_connected_line *src, const struct ast_set_party_connected_line *update) |
| Set the connected line information based on another connected line source. | |
| void | ast_party_connected_line_set_init (struct ast_party_connected_line *init, const struct ast_party_connected_line *guide) |
| Initialize the given connected line structure using the given guide for a set update operation. | |
| void | ast_party_dialed_copy (struct ast_party_dialed *dest, const struct ast_party_dialed *src) |
| Copy the source dialed party information to the destination dialed party. | |
| void | ast_party_dialed_free (struct ast_party_dialed *doomed) |
| Destroy the dialed party contents. | |
| void | ast_party_dialed_init (struct ast_party_dialed *init) |
| Initialize the given dialed structure. | |
| void | ast_party_dialed_set (struct ast_party_dialed *dest, const struct ast_party_dialed *src) |
| Set the dialed information based on another dialed source. | |
| void | ast_party_dialed_set_init (struct ast_party_dialed *init, const struct ast_party_dialed *guide) |
| Initialize the given dialed structure using the given guide for a set update operation. | |
| void | ast_party_id_copy (struct ast_party_id *dest, const struct ast_party_id *src) |
| Copy the source party id information to the destination party id. | |
| void | ast_party_id_free (struct ast_party_id *doomed) |
| Destroy the party id contents. | |
| void | ast_party_id_init (struct ast_party_id *init) |
| Initialize the given party id structure. | |
| int | ast_party_id_presentation (const struct ast_party_id *id) |
| Determine the overall presentation value for the given party. | |
| void | ast_party_id_set (struct ast_party_id *dest, const struct ast_party_id *src, const struct ast_set_party_id *update) |
| Set the source party id information into the destination party id. | |
| void | ast_party_id_set_init (struct ast_party_id *init, const struct ast_party_id *guide) |
| Initialize the given party id structure using the given guide for a set update operation. | |
| void | ast_party_name_copy (struct ast_party_name *dest, const struct ast_party_name *src) |
| Copy the source party name information to the destination party name. | |
| void | ast_party_name_free (struct ast_party_name *doomed) |
| Destroy the party name contents. | |
| void | ast_party_name_init (struct ast_party_name *init) |
| Initialize the given name structure. | |
| void | ast_party_name_set (struct ast_party_name *dest, const struct ast_party_name *src) |
| Set the source party name information into the destination party name. | |
| void | ast_party_name_set_init (struct ast_party_name *init, const struct ast_party_name *guide) |
| Initialize the given party name structure using the given guide for a set update operation. | |
| void | ast_party_number_copy (struct ast_party_number *dest, const struct ast_party_number *src) |
| Copy the source party number information to the destination party number. | |
| void | ast_party_number_free (struct ast_party_number *doomed) |
| Destroy the party number contents. | |
| void | ast_party_number_init (struct ast_party_number *init) |
| Initialize the given number structure. | |
| void | ast_party_number_set (struct ast_party_number *dest, const struct ast_party_number *src) |
| Set the source party number information into the destination party number. | |
| void | ast_party_number_set_init (struct ast_party_number *init, const struct ast_party_number *guide) |
| Initialize the given party number structure using the given guide for a set update operation. | |
| void | ast_party_redirecting_copy (struct ast_party_redirecting *dest, const struct ast_party_redirecting *src) |
| Copy the source redirecting information to the destination redirecting. | |
| void | ast_party_redirecting_free (struct ast_party_redirecting *doomed) |
| Destroy the redirecting information contents. | |
| void | ast_party_redirecting_init (struct ast_party_redirecting *init) |
| Initialize the given redirecting structure. | |
| void | ast_party_redirecting_set (struct ast_party_redirecting *dest, const struct ast_party_redirecting *src, const struct ast_set_party_redirecting *update) |
| Set the redirecting information based on another redirecting source. | |
| void | ast_party_redirecting_set_init (struct ast_party_redirecting *init, const struct ast_party_redirecting *guide) |
| Initialize the given redirecting id structure using the given guide for a set update operation. | |
| void | ast_party_subaddress_copy (struct ast_party_subaddress *dest, const struct ast_party_subaddress *src) |
| Copy the source party subaddress information to the destination party subaddress. | |
| void | ast_party_subaddress_free (struct ast_party_subaddress *doomed) |
| Destroy the party subaddress contents. | |
| void | ast_party_subaddress_init (struct ast_party_subaddress *init) |
| Initialize the given subaddress structure. | |
| void | ast_party_subaddress_set (struct ast_party_subaddress *dest, const struct ast_party_subaddress *src) |
| Set the source party subaddress information into the destination party subaddress. | |
| void | ast_party_subaddress_set_init (struct ast_party_subaddress *init, const struct ast_party_subaddress *guide) |
| Initialize the given party subaddress structure using the given guide for a set update operation. | |
| void | ast_poll_channel_add (struct ast_channel *chan0, struct ast_channel *chan1) |
| void | ast_poll_channel_del (struct ast_channel *chan0, struct ast_channel *chan1) |
| char * | ast_print_group (char *buf, int buflen, ast_group_t group) |
| print call- and pickup groups into buffer | |
| int | ast_prod (struct ast_channel *chan) |
| Send empty audio to prime a channel driver. | |
| int | ast_queue_control (struct ast_channel *chan, enum ast_control_frame_type control) |
| Queue a control frame with payload. | |
| int | ast_queue_control_data (struct ast_channel *chan, enum ast_control_frame_type control, const void *data, size_t datalen) |
| Queue a control frame with payload. | |
| int | ast_queue_frame (struct ast_channel *chan, struct ast_frame *f) |
| Queue one or more frames to a channel's frame queue. | |
| int | ast_queue_frame_head (struct ast_channel *chan, struct ast_frame *f) |
| Queue one or more frames to the head of a channel's frame queue. | |
| int | ast_queue_hangup (struct ast_channel *chan) |
| Queue a hangup frame. | |
| int | ast_queue_hangup_with_cause (struct ast_channel *chan, int cause) |
| Queue a hangup frame with hangupcause set. | |
| int | ast_raw_answer (struct ast_channel *chan, int cdr_answer) |
| Answer a channel. | |
| struct ast_frame * | ast_read (struct ast_channel *chan) |
| Reads a frame. | |
| struct ast_frame * | ast_read_noaudio (struct ast_channel *chan) |
| Reads a frame, returning AST_FRAME_NULL frame if audio. | |
| int | ast_readstring (struct ast_channel *c, char *s, int len, int timeout, int rtimeout, char *enders) |
| Reads multiple digits. | |
| int | ast_readstring_full (struct ast_channel *c, char *s, int len, int timeout, int rtimeout, char *enders, int audiofd, int ctrlfd) |
| int | ast_recvchar (struct ast_channel *chan, int timeout) |
| Receives a text character from a channel. | |
| char * | ast_recvtext (struct ast_channel *chan, int timeout) |
| Receives a text string from a channel Read a string of text from a channel. | |
| int | ast_redirecting_build_data (unsigned char *data, size_t datalen, const struct ast_party_redirecting *redirecting, const struct ast_set_party_redirecting *update) |
| Build the redirecting id data frame. | |
| int | ast_redirecting_parse_data (const unsigned char *data, size_t datalen, struct ast_party_redirecting *redirecting) |
| Parse redirecting indication frame data. | |
| struct ast_channel * | ast_request (const char *type, format_t format, const struct ast_channel *requestor, void *data, int *status) |
| Requests a channel. | |
| struct ast_channel * | ast_request_and_dial (const char *type, format_t format, const struct ast_channel *requestor, void *data, int timeout, int *reason, const char *cid_num, const char *cid_name) |
| Request a channel of a given type, with data as optional information used by the low level module and attempt to place a call on it. | |
| int | ast_safe_sleep (struct ast_channel *chan, int ms) |
| Wait for a specified amount of time, looking for hangups. | |
| int | ast_safe_sleep_conditional (struct ast_channel *chan, int ms, int(*cond)(void *), void *data) |
| Wait for a specified amount of time, looking for hangups and a condition argument. | |
| int | ast_senddigit (struct ast_channel *chan, char digit, unsigned int duration) |
| Send a DTMF digit to a channel. | |
| int | ast_senddigit_begin (struct ast_channel *chan, char digit) |
| Send a DTMF digit to a channel. | |
| int | ast_senddigit_end (struct ast_channel *chan, char digit, unsigned int duration) |
| Send a DTMF digit to a channel. | |
| int | ast_sendtext (struct ast_channel *chan, const char *text) |
| Sends text to a channel. | |
| void | ast_set_callerid (struct ast_channel *chan, const char *cid_num, const char *cid_name, const char *cid_ani) |
| Set caller ID number, name and ANI and generate AMI event. | |
| void | ast_set_hangupsource (struct ast_channel *chan, const char *source, int force) |
| Set the source of the hangup in this channel and it's bridge. | |
| int | ast_set_read_format (struct ast_channel *chan, format_t format) |
| Sets read format on channel chan Set read format for channel to whichever component of "format" is best. | |
| void | ast_set_variables (struct ast_channel *chan, struct ast_variable *vars) |
| adds a list of channel variables to a channel | |
| int | ast_set_write_format (struct ast_channel *chan, format_t format) |
| Sets write format on channel chan Set write format for channel to whichever component of "format" is best. | |
| int | ast_settimeout (struct ast_channel *c, unsigned int rate, int(*func)(const void *data), void *data) |
| Enable or disable timer ticks for a channel. | |
| int | ast_shutting_down (void) |
| Returns non-zero if Asterisk is being shut down. | |
| int | ast_softhangup (struct ast_channel *chan, int reason) |
| Softly hangup up a channel. | |
| int | ast_softhangup_nolock (struct ast_channel *chan, int reason) |
| Softly hangup up a channel (no channel lock) | |
| const char * | ast_state2str (enum ast_channel_state) |
| Gives the string form of a given channel state. | |
| int | ast_str2cause (const char *name) attribute_pure |
| Convert the string form of a cause code to a number. | |
| int | ast_tonepair (struct ast_channel *chan, int freq1, int freq2, int duration, int vol) |
| int | ast_tonepair_start (struct ast_channel *chan, int freq1, int freq2, int duration, int vol) |
| void | ast_tonepair_stop (struct ast_channel *chan) |
| int | ast_transfer (struct ast_channel *chan, char *dest) |
| Transfer a channel (if supported). | |
| char * | ast_transfercapability2str (int transfercapability) attribute_const |
| Gives the string form of a given transfer capability. | |
| int | ast_waitfor (struct ast_channel *chan, int ms) |
| Wait for input on a channel. | |
| struct ast_channel * | ast_waitfor_n (struct ast_channel **chan, int n, int *ms) |
| Waits for input on a group of channels Wait for input on an array of channels for a given # of milliseconds. | |
| int | ast_waitfor_n_fd (int *fds, int n, int *ms, int *exception) |
| Waits for input on an fd. | |
| struct ast_channel * | ast_waitfor_nandfds (struct ast_channel **chan, int n, int *fds, int nfds, int *exception, int *outfd, int *ms) |
| Waits for activity on a group of channels. | |
| int | ast_waitfordigit (struct ast_channel *c, int ms) |
| Waits for a digit. | |
| int | ast_waitfordigit_full (struct ast_channel *c, int ms, int audiofd, int ctrlfd) |
| Wait for a digit Same as ast_waitfordigit() with audio fd for outputting read audio and ctrlfd to monitor for reading. | |
| int | ast_write (struct ast_channel *chan, struct ast_frame *frame) |
| Write a frame to a channel This function writes the given frame to the indicated channel. | |
| int | ast_write_text (struct ast_channel *chan, struct ast_frame *frame) |
| Write text frame to a channel This function writes the given frame to the indicated channel. | |
| int | ast_write_video (struct ast_channel *chan, struct ast_frame *frame) |
| Write video frame to a channel This function writes the given frame to the indicated channel. | |
| const char * | channelreloadreason2txt (enum channelreloadreason reason) |
| Convert enum channelreloadreason to text string for manager event. | |
| struct ast_channel_iterator * | ast_channel_iterator_destroy (struct ast_channel_iterator *i) |
| Destroy a channel iterator. | |
| struct ast_channel_iterator * | ast_channel_iterator_by_exten_new (const char *exten, const char *context) |
| Create a new channel iterator based on extension. | |
| struct ast_channel_iterator * | ast_channel_iterator_by_name_new (const char *name, size_t name_len) |
| Create a new channel iterator based on name. | |
| struct ast_channel_iterator * | ast_channel_iterator_all_new (void) |
| Create a new channel iterator. | |
| struct ast_channel * | ast_channel_iterator_next (struct ast_channel_iterator *i) |
| Get the next channel for a channel iterator. | |
| struct ast_channel * | ast_channel_get_by_name (const char *name) |
| Find a channel by name. | |
| struct ast_channel * | ast_channel_get_by_name_prefix (const char *name, size_t name_len) |
| Find a channel by a name prefix. | |
| struct ast_channel * | ast_channel_get_by_exten (const char *exten, const char *context) |
| Find a channel by extension and context. | |
Variables | |
| struct ast_channel_tech | ast_kill_tech |
| unsigned long | global_fin |
| unsigned long | global_fout |
Detailed Description
General Asterisk PBX channel definitions.
Definition in file channel.h.
Define Documentation
| #define AST_AGENT_FD (AST_MAX_FDS-3) |
used by agents for pass through
Definition at line 165 of file channel.h.
Referenced by agent_read().
| #define AST_ALERT_FD (AST_MAX_FDS-1) |
used for alertpipe
Definition at line 163 of file channel.h.
Referenced by __ast_channel_alloc_ap().
| #define AST_BRIDGE_DTMF_CHANNEL_0 (1 << 0) |
Report DTMF on channel 0.
Definition at line 1903 of file channel.h.
Referenced by ast_generic_bridge(), ast_rtp_instance_bridge(), dahdi_bridge(), iax2_bridge(), local_bridge_loop(), misdn_bridge(), remote_bridge_loop(), and set_config_flags().
| #define AST_BRIDGE_DTMF_CHANNEL_1 (1 << 1) |
Report DTMF on channel 1.
Definition at line 1905 of file channel.h.
Referenced by ast_generic_bridge(), ast_rtp_instance_bridge(), dahdi_bridge(), iax2_bridge(), local_bridge_loop(), misdn_bridge(), remote_bridge_loop(), and set_config_flags().
| #define AST_BRIDGE_IGNORE_SIGS (1 << 4) |
Ignore all signal frames except NULL.
Definition at line 1911 of file channel.h.
Referenced by ast_generic_bridge(), iax2_bridge(), local_bridge_loop(), and remote_bridge_loop().
| #define AST_BRIDGE_REC_CHANNEL_0 (1 << 2) |
| #define AST_BRIDGE_REC_CHANNEL_1 (1 << 3) |
| #define AST_CHAN_WRITE_INFO_T_VERSION 1 |
ast_chan_write_info_t version. Must be incremented if structure is changed
Definition at line 484 of file channel.h.
Referenced by func_channel_write(), and local_setoption().
| #define ast_channel_alloc | ( | needqueue, | |
| state, | |||
| cid_num, | |||
| cid_name, | |||
| acctcode, | |||
| exten, | |||
| context, | |||
| linkedid, | |||
| amaflag, | |||
| ... | |||
| ) |
__ast_channel_alloc(needqueue, state, cid_num, cid_name, acctcode, exten, context, linkedid, amaflag, \ __FILE__, __LINE__, __FUNCTION__, __VA_ARGS__)
Create a channel structure.
- Return values:
-
NULL failure non-NULL successfully allocated channel
- Note:
- Absolutely _NO_ channel locks should be held before calling this function.
- By default, new channels are set to the "s" extension and "default" context.
| #define ast_channel_lock | ( | chan | ) | ao2_lock(chan) |
Definition at line 2433 of file channel.h.
Referenced by __ast_answer(), __ast_pbx_run(), __ast_queue_frame(), __ast_read(), __ast_request_and_dial(), __oh323_destroy(), __sip_destroy(), _macro_exec(), _while_exec(), acf_cc_read(), acf_cc_write(), acf_odbc_read(), action_add_agi_cmd(), action_coreshowchannels(), action_hangup(), action_redirect(), action_status(), action_timeout(), add_features_datastores(), add_to_agi(), agent_hangup(), agent_indicate(), agent_lock_owner(), ast_activate_generator(), ast_async_goto(), ast_audiohook_attach(), ast_audiohook_detach_source(), ast_audiohook_remove(), ast_audiohook_set_mute(), ast_autochan_destroy(), ast_autochan_setup(), ast_autoservice_start(), ast_autoservice_stop(), ast_bridge_call(), ast_bridge_timelimit(), ast_call(), ast_call_forward(), ast_cc_agent_set_interfaces_chanvar(), ast_cc_call_init(), ast_cc_completed(), ast_cc_extension_monitor_add_dialstring(), ast_cc_get_current_core_id(), ast_cc_is_recall(), ast_cc_offer(), ast_cel_report_event(), ast_change_name(), ast_channel_clear_softhangup(), ast_channel_cmp_cb(), ast_channel_connected_line_macro(), ast_channel_destructor(), ast_channel_queryoption(), ast_channel_redirecting_macro(), ast_channel_set_caller(), ast_channel_set_caller_event(), ast_channel_set_connected_line(), ast_channel_set_redirecting(), ast_channel_setoption(), ast_check_hangup_locked(), ast_complete_channels(), ast_deactivate_generator(), ast_dial_join(), ast_do_masquerade(), ast_do_pickup(), ast_eivr_getvariable(), ast_explicit_goto(), ast_handle_cc_control_frame(), ast_hangup(), ast_ignore_cc(), ast_indicate_data(), ast_odbc_retrieve_transaction_obj(), ast_pbx_outgoing_app(), ast_pbx_outgoing_exten(), ast_raw_answer(), ast_read_generator_actions(), ast_rtp_instance_bridge(), ast_rtp_instance_early_bridge(), ast_rtp_instance_early_bridge_make_compatible(), ast_rtp_instance_make_compatible(), ast_safe_sleep_conditional(), ast_sendtext(), ast_set_callerid(), ast_set_cc_interfaces_chanvar(), ast_set_hangupsource(), ast_settimeout(), ast_setup_cc_recall_datastore(), ast_softhangup(), ast_stopstream(), ast_str_retrieve_variable(), ast_transfer(), ast_udptl_bridge(), ast_var_channel_bridge(), ast_var_channels_table(), ast_waitfor_nandfds(), ast_write(), auth_exec(), awesome_locking(), bridge_play_sounds(), builtin_atxfer(), builtin_automixmonitor(), builtin_blindtransfer(), calendar_event_read(), calendar_query_exec(), calendar_query_result_exec(), call_forward_inherit(), callerid_read(), callerid_write(), cb_events(), cc_build_payload(), cc_interfaces_datastore_init(), cdr_read(), cdr_write(), channel_set_debug(), channel_spy(), check_goto_on_transfer(), clear_caller(), clear_dialed_interfaces(), common_exec(), conf_run(), conf_start_moh(), confbridge_exec(), connectedline_read(), connectedline_write(), create_dynamic_parkinglot(), crement_function_read(), dahdi_bridge(), dahdi_handle_dtmf(), data_channels_provider_handler(), dial_exec_full(), disable_jack_hook(), do_forward(), dundi_query_read(), dundi_result_read(), enable_jack_hook(), end_bridge_callback(), enum_query_read(), enum_result_read(), feature_check(), feature_interpret(), feature_request_and_dial(), find_by_mark(), find_by_part(), find_calling_channel(), find_channel_by_group(), find_conf_realtime(), find_details(), find_or_create_details(), find_transaction(), findmeexec(), frame_trace_helper(), func_channel_read(), func_channel_write_real(), func_channels_read(), func_header_read(), func_inheritance_write(), func_mute_write(), function_agent(), function_sipchaninfo_read(), generator_force(), generic_fax_exec(), get_agi_cmd(), get_cid_name(), handle_chanlist(), handle_cli_agi_add_cmd(), handle_cli_mixmonitor(), handle_invite_replaces(), handle_request_bye(), handle_request_refer(), handle_showchan(), handle_softhangup(), import_ch(), import_helper(), init_jack_data(), jack_hook_callback(), leave_voicemail(), linkedid_match(), listfilter(), local_ast_moh_stop(), local_call(), local_hangup(), local_queryoption(), local_queue_frame(), local_read(), local_setoption(), login_exec(), lua_get_state(), manage_parked_call(), manager_mutestream(), mark_transaction_active(), minivm_delete_exec(), minivm_notify_exec(), misdn_answer(), misdn_attempt_transfer(), misdn_update_caller_id(), moh_files_generator(), morsecode_exec(), mute_callback(), my_handle_dtmf(), notify_new_message(), park_call_full(), parkandannounce_exec(), parked_call_exec(), pbx_builtin_background(), pbx_builtin_getvar_helper(), pbx_builtin_gotoiftime(), pbx_builtin_pushvar_helper(), pbx_builtin_serialize_variables(), pbx_builtin_setamaflags(), pbx_builtin_setvar_helper(), peek_read(), pickup_by_exten(), pickup_by_name_cb(), pitchshift_helper(), process_sdp(), queue_exec(), receivefax_exec(), redirecting_read(), redirecting_write(), release_transaction(), report_fax_status(), retrydial_exec(), run_agi(), sendfax_exec(), sendtext_exec(), set_ext_pri(), set_format(), set_security_requirements(), setup_inheritance_datastore(), setup_mixmonitor_ds(), setup_transfer_datastore(), shared_read(), shared_write(), sip_addheader(), sip_dtmfmode(), sip_new(), sip_pvt_lock_full(), sip_read(), sip_removeheader(), sip_set_rtp_peer(), sip_set_udptl_peer(), smdi_msg_read(), smdi_msg_retrieve_read(), softhangup_exec(), speech_background(), speex_read(), speex_write(), srv_datastore_setup(), srv_query_read(), srv_result_read(), ss7_start_call(), start_monitor_action(), start_monitor_exec(), state_notify_build_xml(), stop_mixmonitor_exec(), transmit_invite(), try_calling(), update_bridge_vars(), volume_write(), and wait_for_answer().
| #define ast_channel_lock_both | ( | chan1, | |
| chan2 | |||
| ) |
Lock two channels.
Definition at line 2440 of file channel.h.
Referenced by __ast_channel_masquerade(), __ast_request_and_dial(), ast_bridge_call(), ast_call_forward(), call_forward_inherit(), dial_transfer(), do_bridge_masquerade(), findmeexec(), ring_entry(), and wait_for_answer().
| #define AST_CHANNEL_NAME 80 |
Max length of an ast_channel name
Definition at line 137 of file channel.h.
Referenced by ast_bridge_call(), ast_cc_call_failed(), ast_cc_is_recall(), ast_channel_destructor(), ast_do_masquerade(), ast_parse_device_state(), ast_queue_cc_frame(), ast_setstate(), cc_core_init_instance(), cc_unique_append(), cccancel_exec(), ccreq_exec(), common_exec(), create_jb(), dahdi_cc_callback(), dahdi_new(), dial_exec_full(), fast_originate(), page_exec(), park_call_full(), sig_pri_call(), sig_pri_cc_available(), sig_pri_cc_generic_check(), sip_call(), sip_handle_cc(), softhangup_exec(), and wait_for_answer().
| #define ast_channel_ref | ( | c | ) | ({ ao2_ref(c, +1); (c); }) |
Increase channel reference count.
- Parameters:
-
c the channel
- Return values:
-
c always
- Since:
- 1.8
Definition at line 2458 of file channel.h.
Referenced by agent_hangup(), agent_lock_owner(), ast_autochan_new_channel(), ast_autochan_setup(), ast_cel_report_event(), awesome_locking(), check_bridge(), handle_getvariablefull(), handle_incoming(), handle_invite_replaces(), handle_request_refer(), local_attended_transfer(), local_queryoption(), local_queue_frame(), local_setoption(), sip_pickup(), sip_pvt_lock_full(), and socket_process().
| #define ast_channel_trylock | ( | chan | ) | ao2_trylock(chan) |
Definition at line 2435 of file channel.h.
Referenced by __ast_channel_masquerade(), __oh323_rtp_create(), agent_indicate(), agent_logoff(), agent_read(), analog_lock_sub_owner(), ast_do_masquerade(), ast_queue_hangup(), ast_queue_hangup_with_cause(), ast_rtp_instance_bridge(), ast_rtp_instance_early_bridge(), ast_rtp_instance_early_bridge_make_compatible(), ast_udptl_bridge(), ast_write(), auto_congest(), awesome_locking(), bridge_queue_hangup(), bridge_write(), check_bridge(), check_rtp_timeout(), cleanup_connection(), dahdi_bridge(), dahdi_handle_event(), dahdi_lock_sub_owner(), dahdi_queue_frame(), dahdi_softhangup_all(), dial_exec_full(), do_forward(), get_sip_pvt_byid_locked(), grab_owner(), handle_request_bye(), hangup_connection(), iax2_destroy(), iax2_lock_owner(), mgcp_queue_frame(), mgcp_queue_hangup(), misdn_attempt_transfer(), oh323_rtp_read(), oh323_simulate_dtmf_end(), proc_session_timer(), receive_digit(), release_chan(), release_chan_early(), remote_hold(), retrans_pkt(), setup_rtp_connection(), sig_pri_lock_owner(), sig_ss7_lock_owner(), sip_hangup(), sip_reinvite_retry(), and update_state().
| #define ast_channel_unlock | ( | chan | ) | ao2_unlock(chan) |
Definition at line 2434 of file channel.h.
Referenced by __analog_handle_event(), __ast_answer(), __ast_channel_masquerade(), __ast_pbx_run(), __ast_queue_frame(), __ast_read(), __ast_request_and_dial(), __oh323_destroy(), __oh323_rtp_create(), __sip_autodestruct(), __sip_destroy(), _macro_exec(), _while_exec(), acf_cc_read(), acf_cc_write(), acf_odbc_read(), action_add_agi_cmd(), action_agents(), action_coreshowchannels(), action_hangup(), action_redirect(), action_status(), action_timeout(), add_features_datastores(), add_to_agi(), agent_hangup(), agent_indicate(), agent_lock_owner(), agent_logoff(), agent_read(), agents_data_provider_get(), agents_show(), agents_show_online(), alsa_call(), analog_attempt_transfer(), analog_hangup(), ast_activate_generator(), ast_async_goto(), ast_audiohook_attach(), ast_audiohook_detach_source(), ast_audiohook_remove(), ast_audiohook_set_mute(), ast_autochan_destroy(), ast_autochan_setup(), ast_autoservice_start(), ast_autoservice_stop(), ast_bridge_call(), ast_bridge_timelimit(), ast_call(), ast_call_forward(), ast_cc_agent_set_interfaces_chanvar(), ast_cc_call_init(), ast_cc_completed(), ast_cc_extension_monitor_add_dialstring(), ast_cc_get_current_core_id(), ast_cc_is_recall(), ast_cc_offer(), ast_cel_report_event(), ast_change_name(), ast_channel_clear_softhangup(), ast_channel_cmp_cb(), ast_channel_connected_line_macro(), ast_channel_destructor(), ast_channel_queryoption(), ast_channel_redirecting_macro(), ast_channel_set_caller(), ast_channel_set_caller_event(), ast_channel_set_connected_line(), ast_channel_set_redirecting(), ast_channel_setoption(), ast_check_hangup_locked(), ast_complete_channels(), ast_deactivate_generator(), ast_dial_join(), ast_do_masquerade(), ast_do_pickup(), ast_eivr_getvariable(), ast_explicit_goto(), ast_handle_cc_control_frame(), ast_hangup(), ast_ignore_cc(), ast_indicate_data(), ast_odbc_retrieve_transaction_obj(), ast_pbx_outgoing_app(), ast_pbx_outgoing_exten(), ast_pickup_call(), ast_queue_hangup(), ast_queue_hangup_with_cause(), ast_raw_answer(), ast_read_generator_actions(), ast_rtp_instance_bridge(), ast_rtp_instance_early_bridge(), ast_rtp_instance_early_bridge_make_compatible(), ast_rtp_instance_make_compatible(), ast_safe_sleep_conditional(), ast_sendtext(), ast_set_callerid(), ast_set_cc_interfaces_chanvar(), ast_set_hangupsource(), ast_settimeout(), ast_setup_cc_recall_datastore(), ast_softhangup(), ast_stopstream(), ast_str_retrieve_variable(), ast_transfer(), ast_udptl_bridge(), ast_var_channel_bridge(), ast_var_channels_table(), ast_waitfor_nandfds(), ast_write(), attempt_transfer(), auth_exec(), auto_congest(), awesome_locking(), bridge_play_sounds(), bridge_queue_hangup(), bridge_write(), builtin_atxfer(), builtin_automixmonitor(), builtin_blindtransfer(), calendar_event_read(), calendar_query_exec(), calendar_query_result_exec(), call_forward_inherit(), callerid_read(), callerid_write(), cb_events(), cc_build_payload(), cc_interfaces_datastore_init(), cdr_read(), cdr_write(), channel_set_debug(), channel_spy(), check_bridge(), check_goto_on_transfer(), check_rtp_timeout(), cleanup_connection(), clear_caller(), clear_dialed_interfaces(), common_exec(), conf_run(), conf_start_moh(), confbridge_exec(), connectedline_read(), connectedline_write(), console_answer(), console_hangup(), console_sendtext(), create_dynamic_parkinglot(), crement_function_read(), dahdi_bridge(), dahdi_handle_dtmf(), dahdi_handle_event(), dahdi_queue_frame(), dahdi_softhangup_all(), data_channels_provider_handler(), dial_exec_full(), dial_transfer(), dialog_unlink_all(), disable_jack_hook(), do_bridge_masquerade(), do_forward(), dundi_query_read(), dundi_result_read(), enable_jack_hook(), end_bridge_callback(), enum_query_read(), enum_result_read(), fast_originate(), feature_check(), feature_interpret(), feature_request_and_dial(), find_by_mark(), find_by_part(), find_calling_channel(), find_channel_by_group(), find_conf_realtime(), find_details(), find_or_create_details(), find_transaction(), findmeexec(), frame_trace_helper(), func_channel_read(), func_channel_write_real(), func_channels_read(), func_header_read(), func_inheritance_write(), func_mute_write(), function_agent(), function_sipchaninfo_read(), generator_force(), generic_fax_exec(), get_agi_cmd(), get_cid_name(), handle_chanlist(), handle_cli_agi_add_cmd(), handle_cli_mixmonitor(), handle_incoming(), handle_invite_replaces(), handle_request_bye(), handle_request_do(), handle_request_invite(), handle_request_refer(), handle_showchan(), handle_softhangup(), hangup_connection(), iax2_destroy(), iax2_queue_control_data(), iax2_queue_frame(), iax2_queue_hangup(), import_ch(), import_helper(), init_jack_data(), jack_hook_callback(), leave_voicemail(), linkedid_match(), listfilter(), local_ast_moh_stop(), local_attended_transfer(), local_bridge_loop(), local_call(), local_hangup(), local_queryoption(), local_queue_frame(), local_read(), local_setoption(), login_exec(), lua_get_state(), manage_parked_call(), manager_mutestream(), mark_transaction_active(), mgcp_pktcgate_remove(), mgcp_queue_frame(), mgcp_queue_hangup(), minivm_delete_exec(), minivm_notify_exec(), misdn_answer(), misdn_attempt_transfer(), misdn_update_caller_id(), moh_files_generator(), morsecode_exec(), mute_callback(), my_handle_dtmf(), notify_new_message(), oh323_rtp_read(), oh323_simulate_dtmf_end(), park_call_full(), parkandannounce_exec(), parked_call_exec(), pbx_builtin_background(), pbx_builtin_getvar_helper(), pbx_builtin_gotoiftime(), pbx_builtin_pushvar_helper(), pbx_builtin_serialize_variables(), pbx_builtin_setamaflags(), pbx_builtin_setvar_helper(), peek_read(), pickup_by_channel(), pickup_by_exten(), pickup_by_group(), pickup_by_mark(), pickup_by_name_cb(), pickup_by_part(), pitchshift_helper(), pri_dchannel(), pri_fixup_principle(), pri_queue_frame(), proc_session_timer(), process_sdp(), queue_exec(), receive_digit(), receivefax_exec(), redirecting_read(), redirecting_write(), release_chan(), release_chan_early(), release_transaction(), remote_bridge_loop(), remote_hold(), report_fax_status(), retrans_pkt(), retrydial_exec(), ring_entry(), run_agi(), schedule_delivery(), sendfax_exec(), sendtext_exec(), set_ext_pri(), set_format(), set_hangup_source_and_cause(), set_security_requirements(), setup_inheritance_datastore(), setup_mixmonitor_ds(), setup_rtp_connection(), setup_transfer_datastore(), shared_read(), shared_write(), sig_pri_attempt_transfer(), sig_pri_cc_generic_check(), sig_pri_cli_show_channels(), sig_pri_handle_hold(), sig_pri_handle_subcmds(), sig_pri_send_aoce_termination_request(), sig_ss7_cli_show_channels(), sig_ss7_queue_frame(), sip_addheader(), sip_dtmfmode(), sip_hangup(), sip_new(), sip_pvt_lock_full(), sip_read(), sip_reinvite_retry(), sip_removeheader(), sip_request_call(), sip_set_rtp_peer(), sip_set_udptl_peer(), smdi_msg_read(), smdi_msg_retrieve_read(), socket_process(), softhangup_exec(), speech_background(), speex_read(), speex_write(), srv_datastore_setup(), srv_query_read(), srv_result_read(), ss7_linkset(), ss7_start_call(), start_monitor_action(), start_monitor_exec(), state_notify_build_xml(), stop_mixmonitor_exec(), transmit_invite(), try_calling(), update_bridge_vars(), update_state(), volume_write(), wait_for_answer(), and wakeup_sub().
| #define ast_channel_unref | ( | c | ) | ({ ao2_ref(c, -1); (struct ast_channel *) (NULL); }) |
Decrease channel reference count.
- Parameters:
-
c the channel
- Return values:
-
NULL always
- Since:
- 1.8
Definition at line 2469 of file channel.h.
Referenced by __ast_channel_alloc_ap(), __sip_autodestruct(), acf_odbc_read(), acf_odbc_write(), action_add_agi_cmd(), action_agents(), action_aocmessage(), action_atxfer(), action_bridge(), action_coreshowchannels(), action_getvar(), action_hangup(), action_redirect(), action_sendtext(), action_setvar(), action_status(), action_timeout(), agent_hangup(), agent_lock_owner(), agent_logoff(), agent_read(), agents_data_provider_get(), agents_show(), agents_show_online(), ast_add_extension2_lockopt(), ast_async_goto_by_name(), ast_autochan_destroy(), ast_autochan_new_channel(), ast_bridge_call(), ast_cel_check_retire_linkedid(), ast_cel_fabricate_channel_from_event(), ast_cel_report_event(), ast_channel_release(), ast_complete_channels(), ast_dummy_channel_alloc(), ast_hangup(), ast_parse_device_state(), ast_pbx_outgoing_cdr_failed(), ast_pickup_call(), ast_str_substitute_variables_full(), ast_var_channel_bridge(), ast_var_channel_types_table(), ast_var_channels_table(), asyncgoto_exec(), awesome_locking(), bridge_exec(), change_monitor_action(), check_bridge(), cli_odbc_read(), cli_odbc_write(), common_exec(), custom_log(), data_channels_provider_handler(), dialog_unlink_all(), do_pause_or_unpause(), func_channels_read(), func_mchan_read(), func_mchan_write(), handle_chanlist(), handle_channelstatus(), handle_cli_agi_add_cmd(), handle_cli_mixmonitor(), handle_core_set_debug_channel(), handle_getvariablefull(), handle_hangup(), handle_incoming(), handle_invite_replaces(), handle_redirect(), handle_request_do(), handle_request_refer(), handle_set_chanvar(), handle_show_chanvar(), handle_showchan(), handle_softhangup(), import_helper(), local_attended_transfer(), local_call(), local_hangup(), local_queryoption(), local_queue_frame(), local_setoption(), make_email_file(), manager_log(), manager_mute_mixmonitor(), manager_mutestream(), manager_optimize_away(), manager_park(), manager_play_dtmf(), next_channel(), park_call_full(), pbx_builtin_importvar(), pbx_substitute_variables_helper_full(), pickup_by_channel(), pickup_by_exten(), pickup_by_group(), pickup_by_mark(), pickup_by_part(), rotate_file(), senddtmf_exec(), sendmail(), sendpage(), shared_read(), shared_write(), sip_pickup(), sip_pickup_thread(), sip_pvt_lock_full(), socket_process(), softhangup_exec(), start_monitor_action(), state_notify_build_xml(), stop_monitor_action(), syslog_log(), and write_cdr().
| #define AST_GENERATOR_FD (AST_MAX_FDS-4) |
used by generator
Definition at line 166 of file channel.h.
Referenced by __ast_read(), ast_deactivate_generator(), and ast_do_masquerade().
| #define AST_MAX_CONTEXT 80 |
Max length of a context
Definition at line 136 of file channel.h.
Referenced by _macro_exec(), aji_publish_mwi(), ast_bridge_call(), cleanup_stale_contexts(), common_exec(), conf_run(), config_parse_variables(), dial_transfer(), do_magic_pickup(), gtalk_load_config(), handle_gosub(), handle_request_invite(), handle_statechange(), park_call_full(), parkinglot_activate(), reload_config(), and try_calling().
| #define AST_MAX_EXTENSION 80 |
Max length of an extension
Definition at line 135 of file channel.h.
Referenced by __analog_ss_thread(), __ast_context_destroy(), add_extensions(), advanced_options(), aji_publish_mwi(), analog_ss_thread(), ast_bridge_call(), ast_device_state_changed(), ast_devstate_changed(), ast_ivr_menu_run_internal(), begin_dial_channel(), build_device(), cc_extension_monitor_init(), conf_run(), destroy_space(), destroy_station(), dial_exec_full(), dial_transfer(), disa_exec(), do_magic_pickup(), dundi_lookup_local(), feature_attended_transfer(), feature_blind_transfer(), find_conf_realtime(), forward_message(), function_enum(), get_destination(), handle_gosub(), handle_request_invite(), handle_statechange(), load_module(), log_exec(), manage_parked_call(), manager_show_dialplan_helper(), mgcp_ss(), park_add_hints(), park_call_exec(), park_call_full(), phone_check_exception(), pri_dchannel(), pri_ss_thread(), process_dahdi(), realtime_common(), realtime_switch_common(), search_directory_sub(), show_dialplan_helper(), sig_pri_party_number_convert(), skinny_extensionstate_cb(), skinny_ss(), sla_build_station(), speech_background(), state_notify_build_xml(), try_calling(), vm_authenticate(), and vmauthenticate().
| #define AST_MAX_FDS 10 |
Definition at line 158 of file channel.h.
Referenced by ast_channel_destructor(), ast_do_masquerade(), ast_poll_channel_add(), ast_poll_channel_del(), ast_waitfor_nandfds(), and manage_parked_call().
| #define AST_TIMING_FD (AST_MAX_FDS-2) |
used for timingfd
Definition at line 164 of file channel.h.
Referenced by __ast_channel_alloc_ap(), __ast_read(), agent_read(), and ast_do_masquerade().
| #define CHECK_BLOCKING | ( | c | ) |
Definition at line 2394 of file channel.h.
Referenced by ast_sendtext(), ast_waitfor_nandfds(), ast_write(), dahdi_read(), and phone_read().
| #define DATASTORE_INHERIT_FOREVER INT_MAX |
Definition at line 156 of file channel.h.
Referenced by _macro_exec(), acf_iaxvar_write(), add_features_datastores(), ast_channel_datastore_inherit(), ast_iax2_new(), ast_setup_cc_recall_datastore(), authenticate_reply(), calendar_query_exec(), cc_interfaces_datastore_init(), dial_exec_full(), do_notify(), socket_process(), and try_calling().
| #define DEBUGCHAN_FLAG 0x80000000 |
The high bit of the frame count is used as a debug marker, so increments of the counters must be done with care. Please use c->fin = FRAMECOUNT_INC(c->fin) and the same for c->fout.
Definition at line 642 of file channel.h.
Referenced by __ast_read(), ast_write(), channel_set_debug(), handle_core_set_debug_channel(), handle_showchan(), and serialize_showchan().
| #define FRAMECOUNT_INC | ( | x | ) | ( ((x) & DEBUGCHAN_FLAG) | (((x)+1) & ~DEBUGCHAN_FLAG) ) |
Definition at line 645 of file channel.h.
Referenced by __ast_read(), and ast_write().
| #define MAX_LANGUAGE 40 |
Max length of the language setting
Definition at line 138 of file channel.h.
Referenced by ast_readconfig().
| #define MAX_MUSICCLASS 80 |
Typedef Documentation
| typedef int(* ast_acf_read2_fn_t)(struct ast_channel *, const char *, char *, struct ast_str **, ssize_t) |
| typedef int(* ast_acf_read_fn_t)(struct ast_channel *, const char *, char *, char *, size_t) |
| typedef int(* ast_acf_write_fn_t)(struct ast_channel *, const char *, char *, const char *) |
| typedef unsigned long long ast_group_t |
Enumeration Type Documentation
| anonymous enum |
ast_channel_tech Properties
- Enumerator:
Definition at line 870 of file channel.h.
{
/*!
* \brief Channels have this property if they can accept input with jitter;
* i.e. most VoIP channels
*/
AST_CHAN_TP_WANTSJITTER = (1 << 0),
/*!
* \brief Channels have this property if they can create jitter;
* i.e. most VoIP channels
*/
AST_CHAN_TP_CREATESJITTER = (1 << 1),
};
| anonymous enum |
ast_channel flags
- Enumerator:
Definition at line 884 of file channel.h.
{
/*! Queue incoming DTMF, to be released when this flag is turned off */
AST_FLAG_DEFER_DTMF = (1 << 1),
/*! write should be interrupt generator */
AST_FLAG_WRITE_INT = (1 << 2),
/*! a thread is blocking on this channel */
AST_FLAG_BLOCKING = (1 << 3),
/*! This is a zombie channel */
AST_FLAG_ZOMBIE = (1 << 4),
/*! There is an exception pending */
AST_FLAG_EXCEPTION = (1 << 5),
/*! Listening to moh XXX anthm promises me this will disappear XXX */
AST_FLAG_MOH = (1 << 6),
/*! This channel is spying on another channel */
AST_FLAG_SPYING = (1 << 7),
/*! This channel is in a native bridge */
AST_FLAG_NBRIDGE = (1 << 8),
/*! the channel is in an auto-incrementing dialplan processor,
* so when ->priority is set, it will get incremented before
* finding the next priority to run */
AST_FLAG_IN_AUTOLOOP = (1 << 9),
/*! This is an outgoing call */
AST_FLAG_OUTGOING = (1 << 10),
/*! A DTMF_BEGIN frame has been read from this channel, but not yet an END */
AST_FLAG_IN_DTMF = (1 << 12),
/*! A DTMF_END was received when not IN_DTMF, so the length of the digit is
* currently being emulated */
AST_FLAG_EMULATE_DTMF = (1 << 13),
/*! This is set to tell the channel not to generate DTMF begin frames, and
* to instead only generate END frames. */
AST_FLAG_END_DTMF_ONLY = (1 << 14),
/*! Flag to show channels that this call is hangup due to the fact that the call
was indeed answered, but in another channel */
AST_FLAG_ANSWERED_ELSEWHERE = (1 << 15),
/*! This flag indicates that on a masquerade, an active stream should not
* be carried over */
AST_FLAG_MASQ_NOSTREAM = (1 << 16),
/*! This flag indicates that the hangup exten was run when the bridge terminated,
* a message aimed at preventing a subsequent hangup exten being run at the pbx_run
* level */
AST_FLAG_BRIDGE_HANGUP_RUN = (1 << 17),
/*! This flag indicates that the hangup exten should NOT be run when the
* bridge terminates, this will allow the hangup in the pbx loop to be run instead.
* */
AST_FLAG_BRIDGE_HANGUP_DONT = (1 << 18),
/*! Disable certain workarounds. This reintroduces certain bugs, but allows
* some non-traditional dialplans (like AGI) to continue to function.
*/
AST_FLAG_DISABLE_WORKAROUNDS = (1 << 20),
};
| anonymous enum |
ast_bridge_config flags
- Enumerator:
Definition at line 936 of file channel.h.
{
AST_FEATURE_PLAY_WARNING = (1 << 0),
AST_FEATURE_REDIRECT = (1 << 1),
AST_FEATURE_DISCONNECT = (1 << 2),
AST_FEATURE_ATXFER = (1 << 3),
AST_FEATURE_AUTOMON = (1 << 4),
AST_FEATURE_PARKCALL = (1 << 5),
AST_FEATURE_AUTOMIXMON = (1 << 6),
AST_FEATURE_NO_H_EXTEN = (1 << 7),
AST_FEATURE_WARNING_ACTIVE = (1 << 8),
};
| anonymous enum |
- Enumerator:
Definition at line 984 of file channel.h.
{
/*!
* Soft hangup requested by device or other internal reason.
* Actual hangup needed.
*/
AST_SOFTHANGUP_DEV = (1 << 0),
/*!
* Used to break the normal frame flow so an async goto can be
* done instead of actually hanging up.
*/
AST_SOFTHANGUP_ASYNCGOTO = (1 << 1),
/*!
* Soft hangup requested by system shutdown. Actual hangup
* needed.
*/
AST_SOFTHANGUP_SHUTDOWN = (1 << 2),
/*!
* Used to break the normal frame flow after a timeout so an
* implicit async goto can be done to the 'T' exten if it exists
* instead of actually hanging up. If the exten does not exist
* then actually hangup.
*/
AST_SOFTHANGUP_TIMEOUT = (1 << 3),
/*!
* Soft hangup requested by application/channel-driver being
* unloaded. Actual hangup needed.
*/
AST_SOFTHANGUP_APPUNLOAD = (1 << 4),
/*!
* Soft hangup requested by non-associated party. Actual hangup
* needed.
*/
AST_SOFTHANGUP_EXPLICIT = (1 << 5),
/*!
* Used to break a bridge so the channel can be spied upon
* instead of actually hanging up.
*/
AST_SOFTHANGUP_UNBRIDGE = (1 << 6),
/*!
* \brief All softhangup flags.
*
* This can be used as an argument to ast_channel_softhangup_clear
* to clear all softhangup flags from a channel.
*/
AST_SOFTHANGUP_ALL = (0xFFFFFFFF)
};
| enum ast_bridge_result |
Definition at line 168 of file channel.h.
{
AST_BRIDGE_COMPLETE = 0,
AST_BRIDGE_FAILED = -1,
AST_BRIDGE_FAILED_NOWARN = -2,
AST_BRIDGE_RETRY = -3,
};
| enum ast_channel_adsicpe |
| enum AST_PARTY_CHAR_SET |
Party name character set enumeration values (values from Q.SIG)
- Enumerator:
Definition at line 192 of file channel.h.
{
AST_PARTY_CHAR_SET_UNKNOWN = 0,
AST_PARTY_CHAR_SET_ISO8859_1 = 1,
AST_PARTY_CHAR_SET_WITHDRAWN = 2,/* ITU withdrew this enum value. */
AST_PARTY_CHAR_SET_ISO8859_2 = 3,
AST_PARTY_CHAR_SET_ISO8859_3 = 4,
AST_PARTY_CHAR_SET_ISO8859_4 = 5,
AST_PARTY_CHAR_SET_ISO8859_5 = 6,
AST_PARTY_CHAR_SET_ISO8859_7 = 7,
AST_PARTY_CHAR_SET_ISO10646_BMPSTRING = 8,
AST_PARTY_CHAR_SET_ISO10646_UTF_8STRING = 9,
};
| enum ast_t38_state |
Possible T38 states on channels.
- Enumerator:
Definition at line 663 of file channel.h.
{
T38_STATE_UNAVAILABLE, /*!< T38 is unavailable on this channel or disabled by configuration */
T38_STATE_UNKNOWN, /*!< The channel supports T38 but the current status is unknown */
T38_STATE_NEGOTIATING, /*!< T38 is being negotiated */
T38_STATE_REJECTED, /*!< Remote side has rejected our offer */
T38_STATE_NEGOTIATED, /*!< T38 established */
};
| enum channelreloadreason |
Channel reload reasons for manager events at load or reload of configuration.
Function Documentation
| int __ast_answer | ( | struct ast_channel * | chan, |
| unsigned int | delay, | ||
| int | cdr_answer | ||
| ) |
Answer a channel, with a selectable delay before returning.
- Parameters:
-
chan channel to answer delay maximum amount of time to wait for incoming media cdr_answer flag to control whether any associated CDR should be marked as 'answered'
This function answers a channel and handles all necessary call setup functions.
- Note:
- The channel passed does not need to be locked, but is locked by the function when needed.
- This function will wait up to 'delay' milliseconds for media to arrive on the channel before returning to the caller, so that the caller can properly assume the channel is 'ready' for media flow. If 'delay' is less than 500, the function will wait up to 500 milliseconds.
- Return values:
-
0 on success non-zero on failure
Definition at line 2923 of file channel.c.
References ast_channel::_state, ast_channel_lock, ast_channel_unlock, AST_CONTROL_HANGUP, ast_debug, AST_FRAME_CNG, AST_FRAME_CONTROL, AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, AST_FRAME_HTML, AST_FRAME_IAX, AST_FRAME_IMAGE, AST_FRAME_MODEM, AST_FRAME_NULL, AST_FRAME_TEXT, AST_FRAME_VIDEO, AST_FRAME_VOICE, ast_frfree, ast_frisolate(), AST_LIST_HEAD_INIT_NOLOCK, AST_LIST_HEAD_NOLOCK, AST_LIST_INSERT_HEAD, AST_LIST_REMOVE_HEAD, ast_log(), ast_queue_frame_head(), ast_raw_answer(), ast_read(), AST_STATE_RING, AST_STATE_RINGING, ast_waitfor(), errno, frames, ast_frame::frametype, ast_frame_subclass::integer, LOG_WARNING, MAX, ast_channel::name, and ast_frame::subclass.
Referenced by ast_answer(), pbx_builtin_answer(), and pbx_builtin_incomplete().
{
int res = 0;
enum ast_channel_state old_state;
old_state = chan->_state;
if ((res = ast_raw_answer(chan, cdr_answer))) {
return res;
}
switch (old_state) {
case AST_STATE_RINGING:
case AST_STATE_RING:
/* wait for media to start flowing, but don't wait any longer
* than 'delay' or 500 milliseconds, whichever is longer
*/
do {
AST_LIST_HEAD_NOLOCK(, ast_frame) frames;
struct ast_frame *cur, *new;
int ms = MAX(delay, 500);
unsigned int done = 0;
AST_LIST_HEAD_INIT_NOLOCK(&frames);
for (;;) {
ms = ast_waitfor(chan, ms);
if (ms < 0) {
ast_log(LOG_WARNING, "Error condition occurred when polling channel %s for a voice frame: %s\n", chan->name, strerror(errno));
res = -1;
break;
}
if (ms == 0) {
ast_debug(2, "Didn't receive a media frame from %s within %d ms of answering. Continuing anyway\n", chan->name, MAX(delay, 500));
break;
}
cur = ast_read(chan);
if (!cur || ((cur->frametype == AST_FRAME_CONTROL) &&
(cur->subclass.integer == AST_CONTROL_HANGUP))) {
if (cur) {
ast_frfree(cur);
}
res = -1;
ast_debug(2, "Hangup of channel %s detected in answer routine\n", chan->name);
break;
}
if ((new = ast_frisolate(cur)) != cur) {
ast_frfree(cur);
}
AST_LIST_INSERT_HEAD(&frames, new, frame_list);
/* if a specific delay period was requested, continue
* until that delay has passed. don't stop just because
* incoming media has arrived.
*/
if (delay) {
continue;
}
switch (new->frametype) {
/* all of these frametypes qualify as 'media' */
case AST_FRAME_VOICE:
case AST_FRAME_VIDEO:
case AST_FRAME_TEXT:
case AST_FRAME_DTMF_BEGIN:
case AST_FRAME_DTMF_END:
case AST_FRAME_IMAGE:
case AST_FRAME_HTML:
case AST_FRAME_MODEM:
done = 1;
break;
case AST_FRAME_CONTROL:
case AST_FRAME_IAX:
case AST_FRAME_NULL:
case AST_FRAME_CNG:
break;
}
if (done) {
break;
}
}
if (res == 0) {
ast_channel_lock(chan);
while ((cur = AST_LIST_REMOVE_HEAD(&frames, frame_list))) {
ast_queue_frame_head(chan, cur);
ast_frfree(cur);
}
ast_channel_unlock(chan);
}
} while (0);
break;
default:
break;
}
return res;
}
| struct ast_channel* attribute_malloc __ast_channel_alloc | ( | int | needqueue, |
| int | state, | ||
| const char * | cid_num, | ||
| const char * | cid_name, | ||
| const char * | acctcode, | ||
| const char * | exten, | ||
| const char * | context, | ||
| const char * | linkedid, | ||
| const int | amaflag, | ||
| const char * | file, | ||
| int | line, | ||
| const char * | function, | ||
| const char * | name_fmt, | ||
| ... | |||
| ) | [read] |
Create a channel structure.
- Since:
- 1.8
- Return values:
-
NULL failure non-NULL successfully allocated channel
- Note:
- Absolutely _NO_ channel locks should be held before calling this function.
- By default, new channels are set to the "s" extension and "default" context.
Definition at line 1344 of file channel.c.
References __ast_channel_alloc_ap().
{
va_list ap1, ap2;
struct ast_channel *result;
va_start(ap1, name_fmt);
va_start(ap2, name_fmt);
result = __ast_channel_alloc_ap(needqueue, state, cid_num, cid_name, acctcode, exten, context,
linkedid, amaflag, file, line, function, name_fmt, ap1, ap2);
va_end(ap1);
va_end(ap2);
return result;
}
| struct ast_channel* __ast_request_and_dial | ( | const char * | type, |
| format_t | format, | ||
| const struct ast_channel * | requestor, | ||
| void * | data, | ||
| int | timeout, | ||
| int * | reason, | ||
| const char * | cid_num, | ||
| const char * | cid_name, | ||
| struct outgoing_helper * | oh | ||
| ) | [read] |
Request a channel of a given type, with data as optional information used by the low level module and attempt to place a call on it.
- Parameters:
-
type type of channel to request format requested channel format requestor channel requesting data data data to pass to the channel requester timeout maximum amount of time to wait for an answer reason why unsuccessful (if unsuccessful) cid_num Caller-ID Number cid_name Caller-ID Name (ascii) oh Outgoing helper
- Returns:
- Returns an ast_channel on success or no answer, NULL on failure. Check the value of chan->_state to know if the call was answered or not.
Definition at line 5306 of file channel.c.
References ast_channel::_state, outgoing_helper::account, ast_call(), ast_call_forward(), AST_CAUSE_NO_ANSWER, ast_cdr_alloc(), ast_cdr_answer(), ast_cdr_busy(), ast_cdr_disposition(), ast_cdr_end(), ast_cdr_failed(), AST_CDR_FLAG_ORIGINATED, ast_cdr_init(), ast_cdr_setaccount(), ast_cdr_setapp(), ast_cdr_start(), ast_cdr_update(), ast_channel_datastore_inherit(), ast_channel_inherit_variables(), ast_channel_lock, ast_channel_lock_both, ast_channel_set_connected_line(), ast_channel_unlock, AST_CONTROL_ANSWER, AST_CONTROL_BUSY, AST_CONTROL_CC, AST_CONTROL_CONGESTION, AST_CONTROL_CONNECTED_LINE, AST_CONTROL_HANGUP, AST_CONTROL_HOLD, AST_CONTROL_INCOMPLETE, AST_CONTROL_PROCEEDING, AST_CONTROL_PROGRESS, AST_CONTROL_REDIRECTING, AST_CONTROL_RINGING, AST_CONTROL_SRCCHANGE, AST_CONTROL_SRCUPDATE, AST_CONTROL_UNHOLD, AST_CONTROL_VIDUPDATE, ast_copy_string(), AST_FRAME_CONTROL, ast_frfree, ast_hangup(), ast_log(), ast_party_connected_line_set_init(), AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED, ast_read(), ast_request(), ast_set_flag, ast_set_variables(), AST_STATE_UP, ast_strlen_zero(), ast_waitfor(), ast_channel::call_forward, cause, ast_channel::cdr, chanlist::chan, outgoing_helper::cid_name, outgoing_helper::cid_num, ast_channel::connected, ast_channel::context, outgoing_helper::context, ast_channel::exten, outgoing_helper::exten, f, ast_frame::frametype, handle_cause(), ast_channel::hangupcause, ast_party_connected_line::id, ast_frame_subclass::integer, LOG_NOTICE, ast_party_id::name, ast_party_id::number, outgoing_helper::parent_channel, ast_party_name::presentation, ast_party_number::presentation, ast_channel::priority, outgoing_helper::priority, ast_party_name::str, ast_party_number::str, ast_frame::subclass, ast_party_name::valid, ast_party_number::valid, and outgoing_helper::vars.
Referenced by ast_pbx_outgoing_app(), ast_pbx_outgoing_exten(), ast_request_and_dial(), and parkandannounce_exec().
{
int dummy_outstate;
int cause = 0;
struct ast_channel *chan;
int res = 0;
int last_subclass = 0;
struct ast_party_connected_line connected;
if (outstate)
*outstate = 0;
else
outstate = &dummy_outstate; /* make outstate always a valid pointer */
chan = ast_request(type, format, requestor, data, &cause);
if (!chan) {
ast_log(LOG_NOTICE, "Unable to request channel %s/%s\n", type, (char *)data);
handle_cause(cause, outstate);
return NULL;
}
if (oh) {
if (oh->vars) {
ast_set_variables(chan, oh->vars);
}
if (!ast_strlen_zero(oh->cid_num) && !ast_strlen_zero(oh->cid_name)) {
/*
* Use the oh values instead of the function parameters for the
* outgoing CallerID.
*/
cid_num = oh->cid_num;
cid_name = oh->cid_name;
}
if (oh->parent_channel) {
/* Safely inherit variables and datastores from the parent channel. */
ast_channel_lock_both(oh->parent_channel, chan);
ast_channel_inherit_variables(oh->parent_channel, chan);
ast_channel_datastore_inherit(oh->parent_channel, chan);
ast_channel_unlock(oh->parent_channel);
ast_channel_unlock(chan);
}
if (oh->account) {
ast_channel_lock(chan);
ast_cdr_setaccount(chan, oh->account);
ast_channel_unlock(chan);
}
}
ast_set_flag(chan->cdr, AST_CDR_FLAG_ORIGINATED);
ast_party_connected_line_set_init(&connected, &chan->connected);
if (cid_num) {
connected.id.number.valid = 1;
connected.id.number.str = (char *) cid_num;
connected.id.number.presentation = AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
}
if (cid_name) {
connected.id.name.valid = 1;
connected.id.name.str = (char *) cid_name;
connected.id.name.presentation = AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
}
ast_channel_set_connected_line(chan, &connected, NULL);
if (ast_call(chan, data, 0)) { /* ast_call failed... */
ast_log(LOG_NOTICE, "Unable to call channel %s/%s\n", type, (char *)data);
} else {
res = 1; /* mark success in case chan->_state is already AST_STATE_UP */
while (timeout && chan->_state != AST_STATE_UP) {
struct ast_frame *f;
res = ast_waitfor(chan, timeout);
if (res == 0) { /* timeout, treat it like ringing */
*outstate = AST_CONTROL_RINGING;
break;
}
if (res < 0) /* error or done */
break;
if (timeout > -1)
timeout = res;
if (!ast_strlen_zero(chan->call_forward)) {
if (!(chan = ast_call_forward(NULL, chan, NULL, format, oh, outstate))) {
return NULL;
}
continue;
}
f = ast_read(chan);
if (!f) {
*outstate = AST_CONTROL_HANGUP;
res = 0;
break;
}
if (f->frametype == AST_FRAME_CONTROL) {
switch (f->subclass.integer) {
case AST_CONTROL_RINGING: /* record but keep going */
*outstate = f->subclass.integer;
break;
case AST_CONTROL_BUSY:
ast_cdr_busy(chan->cdr);
*outstate = f->subclass.integer;
timeout = 0;
break;
case AST_CONTROL_INCOMPLETE:
ast_cdr_failed(chan->cdr);
*outstate = AST_CONTROL_CONGESTION;
timeout = 0;
break;
case AST_CONTROL_CONGESTION:
ast_cdr_failed(chan->cdr);
*outstate = f->subclass.integer;
timeout = 0;
break;
case AST_CONTROL_ANSWER:
ast_cdr_answer(chan->cdr);
*outstate = f->subclass.integer;
timeout = 0; /* trick to force exit from the while() */
break;
/* Ignore these */
case AST_CONTROL_PROGRESS:
case AST_CONTROL_PROCEEDING:
case AST_CONTROL_HOLD:
case AST_CONTROL_UNHOLD:
case AST_CONTROL_VIDUPDATE:
case AST_CONTROL_SRCUPDATE:
case AST_CONTROL_SRCCHANGE:
case AST_CONTROL_CONNECTED_LINE:
case AST_CONTROL_REDIRECTING:
case AST_CONTROL_CC:
case -1: /* Ignore -- just stopping indications */
break;
default:
ast_log(LOG_NOTICE, "Don't know what to do with control frame %d\n", f->subclass.integer);
}
last_subclass = f->subclass.integer;
}
ast_frfree(f);
}
}
/* Final fixups */
if (oh) {
if (!ast_strlen_zero(oh->context))
ast_copy_string(chan->context, oh->context, sizeof(chan->context));
if (!ast_strlen_zero(oh->exten))
ast_copy_string(chan->exten, oh->exten, sizeof(chan->exten));
if (oh->priority)
chan->priority = oh->priority;
}
if (chan->_state == AST_STATE_UP)
*outstate = AST_CONTROL_ANSWER;
if (res <= 0) {
ast_channel_lock(chan);
if (AST_CONTROL_RINGING == last_subclass) {
chan->hangupcause = AST_CAUSE_NO_ANSWER;
}
if (!chan->cdr && (chan->cdr = ast_cdr_alloc())) {
ast_cdr_init(chan->cdr, chan);
}
if (chan->cdr) {
char tmp[256];
snprintf(tmp, sizeof(tmp), "%s/%s", type, (char *)data);
ast_cdr_setapp(chan->cdr, "Dial", tmp);
ast_cdr_update(chan);
ast_cdr_start(chan->cdr);
ast_cdr_end(chan->cdr);
/* If the cause wasn't handled properly */
if (ast_cdr_disposition(chan->cdr, chan->hangupcause)) {
ast_cdr_failed(chan->cdr);
}
}
ast_channel_unlock(chan);
ast_hangup(chan);
chan = NULL;
}
return chan;
}
| int ast_activate_generator | ( | struct ast_channel * | chan, |
| struct ast_generator * | gen, | ||
| void * | params | ||
| ) |
Activate a given generator
Definition at line 3074 of file channel.c.
References ast_generator::alloc, ast_channel_lock, ast_channel_unlock, ast_prod(), ast_settimeout(), gen, ast_channel::generator, generator_force(), ast_channel::generatordata, and ast_generator::release.
Referenced by app_exec(), ast_channel_start_silence_generator(), ast_linear_stream(), ast_playtones_start(), ast_tonepair_start(), channel_spy(), eivr_comm(), local_ast_moh_start(), old_milliwatt_exec(), and transmit_audio().
{
int res = 0;
ast_channel_lock(chan);
if (chan->generatordata) {
if (chan->generator && chan->generator->release)
chan->generator->release(chan, chan->generatordata);
chan->generatordata = NULL;
}
if (gen->alloc && !(chan->generatordata = gen->alloc(chan, params))) {
res = -1;
}
if (!res) {
ast_settimeout(chan, 50, generator_force, chan);
chan->generator = gen;
}
ast_channel_unlock(chan);
ast_prod(chan);
return res;
}
| int ast_active_channels | ( | void | ) |
returns number of active/allocated channels
- Returns:
- number of active/allocated channels
Definition at line 832 of file channel.c.
References ao2_container_count(), and channels.
Referenced by action_corestatus(), ast_var_channels(), ast_var_channels_table(), dahdi_restart(), handle_chanlist(), handle_show_settings(), and quit_handler().
{
return channels ? ao2_container_count(channels) : 0;
}
| static int ast_add_fd | ( | struct pollfd * | pfd, |
| int | fd | ||
| ) | [inline, static] |
if fd is a valid descriptor, set *pfd with the descriptor
- Returns:
- Return 1 (not -1!) if added, 0 otherwise (so we can add the return value to the index into the array)
Definition at line 2357 of file channel.h.
Referenced by ast_waitfor_nandfds().
{
pfd->fd = fd;
pfd->events = POLLIN | POLLPRI;
return fd >= 0;
}
| int ast_answer | ( | struct ast_channel * | chan | ) |
Answer a channel.
- Parameters:
-
chan channel to answer
This function answers a channel and handles all necessary call setup functions.
- Note:
- The channel passed does not need to be locked, but is locked by the function when needed.
- This function will wait up to 500 milliseconds for media to arrive on the channel before returning to the caller, so that the caller can properly assume the channel is 'ready' for media flow.
- Return values:
-
0 on success non-zero on failure
Definition at line 3024 of file channel.c.
References __ast_answer().
Referenced by action_bridge(), agi_exec_full(), alarmreceiver_exec(), answer_trunk_chan(), app_exec(), ast_control_streamfile(), ast_do_pickup(), ast_pickup_call(), auth_exec(), background_detect_exec(), bridge_exec(), builtin_parkcall(), common_exec(), conf_exec(), count_exec(), dahdiras_exec(), dial_exec_full(), dictate_exec(), directory_exec(), disa_exec(), eivr_comm(), handle_answer(), ices_exec(), login_exec(), minivm_accmess_exec(), minivm_greet_exec(), minivm_record_exec(), old_milliwatt_exec(), park_call_exec(), parked_call_exec(), pbx_builtin_background(), playback_exec(), privacy_exec(), read_exec(), readexten_exec(), receivefax_exec(), record_exec(), rpt_exec(), sayunixtime_exec(), send_waveform_to_channel(), sendfax_exec(), setup_privacy_args(), skel_exec(), sla_station_exec(), speech_background(), testclient_exec(), testserver_exec(), transmit(), vm_exec(), vm_execmain(), waitfor_exec(), and zapateller_exec().
{
return __ast_answer(chan, 0, 1);
}
| int ast_autoservice_ignore | ( | struct ast_channel * | chan, |
| enum ast_frame_type | ftype | ||
| ) |
Ignore certain frame types.
- Note:
- Normally, we cache DTMF, IMAGE, HTML, TEXT, and CONTROL frames while a channel is in autoservice and queue them up when taken out of autoservice. When this is not desireable, this API may be used to cause the channel to ignore those frametypes after the channel is put into autoservice, but before autoservice is stopped.
- Return values:
-
0 success -1 channel is not in autoservice
Definition at line 302 of file autoservice.c.
References AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, asent::chan, asent::ignore_frame_types, and asent::list.
Referenced by builtin_automixmonitor(), feature_exec_app(), and play_message_on_chan().
{
struct asent *as;
int res = -1;
AST_LIST_LOCK(&aslist);
AST_LIST_TRAVERSE(&aslist, as, list) {
if (as->chan == chan) {
res = 0;
as->ignore_frame_types |= (1 << ftype);
break;
}
}
AST_LIST_UNLOCK(&aslist);
return res;
}
| int ast_autoservice_start | ( | struct ast_channel * | chan | ) |
Automatically service a channel for us...
- Return values:
-
0 success -1 failure, or the channel is already being autoserviced
Definition at line 174 of file autoservice.c.
References as_cond, ast_calloc, ast_channel_lock, ast_channel_unlock, ast_cond_signal, AST_FLAG_END_DTMF_ONLY, AST_LIST_EMPTY, AST_LIST_INSERT_HEAD, AST_LIST_LOCK, AST_LIST_REMOVE, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_log(), ast_pthread_create_background, AST_PTHREADT_NULL, ast_set_flag, ast_test_flag, asthread, autoservice_run(), asent::chan, free, asent::list, LOG_WARNING, asent::orig_end_dtmf_flag, and asent::use_count.
Referenced by _macro_exec(), acf_curl_helper(), acf_jabberreceive_read(), acf_odbc_read(), acf_odbc_write(), ast_app_run_macro(), ast_dtmf_stream(), ast_get_enum(), ast_get_srv(), ast_get_txt(), ast_masq_park_call_exten(), ast_park_call_exten(), bridge_playfile(), builtin_atxfer(), builtin_automixmonitor(), builtin_blindtransfer(), conf_play(), confbridge_exec(), dial_exec_full(), exec(), feature_exec_app(), feature_request_and_dial(), function_realtime_read(), function_realtime_readdestroy(), function_realtime_store(), function_realtime_write(), leave_conference_bridge(), lock_read(), lua_autoservice_start(), lua_get_variable_value(), lua_pbx_exec(), lua_set_variable(), lua_set_variable_value(), originate_exec(), osplookup_exec(), pbx_find_extension(), play_message_on_chan(), post_join_marked(), realtimefield_read(), senddtmf_exec(), shell_helper(), sla_station_exec(), smdi_msg_retrieve_read(), srv_datastore_setup(), system_exec_helper(), try_calling(), and trylock_read().
{
int res = 0;
struct asent *as;
AST_LIST_LOCK(&aslist);
AST_LIST_TRAVERSE(&aslist, as, list) {
if (as->chan == chan) {
as->use_count++;
break;
}
}
AST_LIST_UNLOCK(&aslist);
if (as) {
/* Entry exists, autoservice is already handling this channel */
return 0;
}
if (!(as = ast_calloc(1, sizeof(*as))))
return -1;
/* New entry created */
as->chan = chan;
as->use_count = 1;
ast_channel_lock(chan);
as->orig_end_dtmf_flag = ast_test_flag(chan, AST_FLAG_END_DTMF_ONLY) ? 1 : 0;
if (!as->orig_end_dtmf_flag)
ast_set_flag(chan, AST_FLAG_END_DTMF_ONLY);
ast_channel_unlock(chan);
AST_LIST_LOCK(&aslist);
if (AST_LIST_EMPTY(&aslist) && asthread != AST_PTHREADT_NULL) {
ast_cond_signal(&as_cond);
}
AST_LIST_INSERT_HEAD(&aslist, as, list);
if (asthread == AST_PTHREADT_NULL) { /* need start the thread */
if (ast_pthread_create_background(&asthread, NULL, autoservice_run, NULL)) {
ast_log(LOG_WARNING, "Unable to create autoservice thread :(\n");
/* There will only be a single member in the list at this point,
the one we just added. */
AST_LIST_REMOVE(&aslist, as, list);
free(as);
asthread = AST_PTHREADT_NULL;
res = -1;
} else {
pthread_kill(asthread, SIGURG);
}
}
AST_LIST_UNLOCK(&aslist);
return res;
}
| int ast_autoservice_stop | ( | struct ast_channel * | chan | ) |
Stop servicing a channel for us...
- Note:
- if chan is locked prior to calling ast_autoservice_stop, it is likely that there will be a deadlock between the thread that calls ast_autoservice_stop and the autoservice thread. It is important that chan is not locked prior to this call
- Parameters:
-
chan
- Return values:
-
0 success -1 error, or the channel has been hungup
Definition at line 233 of file autoservice.c.
References ast_channel::_softhangup, as_chan_list_state, ast_channel_lock, ast_channel_unlock, ast_clear_flag, AST_FLAG_END_DTMF_ONLY, ast_frfree, AST_LIST_LOCK, AST_LIST_REMOVE_CURRENT, AST_LIST_REMOVE_HEAD, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, AST_LIST_UNLOCK, AST_PTHREADT_NULL, ast_queue_frame_head(), asthread, asent::chan, asent::deferred_frames, f, ast_frame::frametype, free, asent::ignore_frame_types, asent::list, asent::orig_end_dtmf_flag, and asent::use_count.
Referenced by _macro_exec(), acf_curl_helper(), acf_jabberreceive_read(), acf_odbc_read(), acf_odbc_write(), array(), ast_app_run_macro(), ast_dtmf_stream(), ast_get_enum(), ast_get_srv(), ast_get_txt(), ast_hangup(), ast_masq_park_call_exten(), ast_park_call_exten(), bridge_playfile(), builtin_atxfer(), builtin_automixmonitor(), conf_play(), confbridge_exec(), dial_exec_full(), exec(), feature_exec_app(), feature_request_and_dial(), finishup(), function_realtime_read(), function_realtime_readdestroy(), function_realtime_store(), function_realtime_write(), leave_conference_bridge(), lock_read(), lua_autoservice_stop(), lua_get_variable_value(), lua_pbx_exec(), lua_set_variable(), lua_set_variable_value(), originate_exec(), osplookup_exec(), pbx_find_extension(), play_message_on_chan(), post_join_marked(), realtimefield_read(), senddtmf_exec(), shell_helper(), sla_station_exec(), smdi_msg_retrieve_read(), srv_datastore_setup(), system_exec_helper(), try_calling(), and trylock_read().
{
int res = -1;
struct asent *as, *removed = NULL;
struct ast_frame *f;
int chan_list_state;
AST_LIST_LOCK(&aslist);
/* Save the autoservice channel list state. We _must_ verify that the channel
* list has been rebuilt before we return. Because, after we return, the channel
* could get destroyed and we don't want our poor autoservice thread to step on
* it after its gone! */
chan_list_state = as_chan_list_state;
/* Find the entry, but do not free it because it still can be in the
autoservice thread array */
AST_LIST_TRAVERSE_SAFE_BEGIN(&aslist, as, list) {
if (as->chan == chan) {
as->use_count--;
if (as->use_count < 1) {
AST_LIST_REMOVE_CURRENT(list);
removed = as;
}
break;
}
}
AST_LIST_TRAVERSE_SAFE_END;
if (removed && asthread != AST_PTHREADT_NULL) {
pthread_kill(asthread, SIGURG);
}
AST_LIST_UNLOCK(&aslist);
if (!removed) {
return 0;
}
/* Wait while autoservice thread rebuilds its list. */
while (chan_list_state == as_chan_list_state) {
usleep(1000);
}
/* Now autoservice thread should have no references to our entry
and we can safely destroy it */
if (!chan->_softhangup) {
res = 0;
}
if (!as->orig_end_dtmf_flag) {
ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY);
}
ast_channel_lock(chan);
while ((f = AST_LIST_REMOVE_HEAD(&as->deferred_frames, frame_list))) {
if (!((1 << f->frametype) & as->ignore_frame_types)) {
ast_queue_frame_head(chan, f);
}
ast_frfree(f);
}
ast_channel_unlock(chan);
free(as);
return res;
}
| void ast_begin_shutdown | ( | int | hangup | ) |
Initiate system shutdown -- prevents new channels from being allocated.
- Parameters:
-
hangup If "hangup" is non-zero, all existing channels will receive soft hangups
Definition at line 822 of file channel.c.
References ao2_callback, ast_channel_softhangup_cb(), channels, OBJ_MULTIPLE, and OBJ_NODATA.
Referenced by quit_handler().
{
shutting_down = 1;
if (hangup) {
ao2_callback(channels, OBJ_NODATA | OBJ_MULTIPLE, ast_channel_softhangup_cb, NULL);
}
}
Pick the best audio codec.
Pick the best codec Choose the best codec... Uhhh... Yah.
Okay, ulaw is used by all telephony equipment, so start with it
Unless of course, you're a silly European, so then prefer ALAW
G.722 is better then all below, but not as common as the above... so give ulaw and alaw priority
Okay, well, signed linear is easy to translate into other stuff
G.726 is standard ADPCM, in RFC3551 packing order
G.726 is standard ADPCM, in AAL2 packing order
ADPCM has great sound quality and is still pretty easy to translate
Okay, we're down to vocoders now, so pick GSM because it's small and easier to translate and sounds pretty good
iLBC is not too bad
Speex is free, but computationally more expensive than GSM
Ick, LPC10 sounds terrible, but at least we have code for it, if you're tacky enough to use it
G.729a is faster than 723 and slightly less expensive
Down to G.723.1 which is proprietary but at least designed for voice
Definition at line 1041 of file channel.c.
References ARRAY_LEN, AST_FORMAT_ADPCM, AST_FORMAT_ALAW, AST_FORMAT_AUDIO_MASK, AST_FORMAT_G719, AST_FORMAT_G722, AST_FORMAT_G723_1, AST_FORMAT_G726, AST_FORMAT_G726_AAL2, AST_FORMAT_G729A, AST_FORMAT_GSM, AST_FORMAT_ILBC, AST_FORMAT_LPC10, AST_FORMAT_SIREN14, AST_FORMAT_SIREN7, AST_FORMAT_SLINEAR, AST_FORMAT_SLINEAR16, AST_FORMAT_SPEEX, AST_FORMAT_SPEEX16, AST_FORMAT_TESTLAW, AST_FORMAT_ULAW, ast_getformatname_multiple(), ast_log(), LOG_WARNING, and prefs.
Referenced by __oh323_new(), agent_call(), ast_codec_choose(), ast_iax2_new(), ast_speech_new(), bridge_make_compatible(), builtin_atxfer(), echo_exec(), findmeexec(), gtalk_new(), handle_open_receive_channel_ack_message(), iax2_request(), jingle_new(), local_new(), login_exec(), mgcp_new(), multicast_rtp_request(), set_format(), sip_new(), skinny_new(), skinny_set_rtp_peer(), socket_process(), start_rtp(), transmit_connect(), and unistim_new().
{
/* This just our opinion, expressed in code. We are asked to choose
the best codec to use, given no information */
int x;
static const format_t prefs[] =
{
/*! Okay, ulaw is used by all telephony equipment, so start with it */
AST_FORMAT_ULAW,
/*! Unless of course, you're a silly European, so then prefer ALAW */
AST_FORMAT_ALAW,
AST_FORMAT_G719,
AST_FORMAT_SIREN14,
AST_FORMAT_SIREN7,
AST_FORMAT_TESTLAW,
/*! G.722 is better then all below, but not as common as the above... so give ulaw and alaw priority */
AST_FORMAT_G722,
/*! Okay, well, signed linear is easy to translate into other stuff */
AST_FORMAT_SLINEAR16,
AST_FORMAT_SLINEAR,
/*! G.726 is standard ADPCM, in RFC3551 packing order */
AST_FORMAT_G726,
/*! G.726 is standard ADPCM, in AAL2 packing order */
AST_FORMAT_G726_AAL2,
/*! ADPCM has great sound quality and is still pretty easy to translate */
AST_FORMAT_ADPCM,
/*! Okay, we're down to vocoders now, so pick GSM because it's small and easier to
translate and sounds pretty good */
AST_FORMAT_GSM,
/*! iLBC is not too bad */
AST_FORMAT_ILBC,
/*! Speex is free, but computationally more expensive than GSM */
AST_FORMAT_SPEEX16,
AST_FORMAT_SPEEX,
/*! Ick, LPC10 sounds terrible, but at least we have code for it, if you're tacky enough
to use it */
AST_FORMAT_LPC10,
/*! G.729a is faster than 723 and slightly less expensive */
AST_FORMAT_G729A,
/*! Down to G.723.1 which is proprietary but at least designed for voice */
AST_FORMAT_G723_1,
};
char buf[512];
/* Strip out video */
fmts &= AST_FORMAT_AUDIO_MASK;
/* Find the first preferred codec in the format given */
for (x = 0; x < ARRAY_LEN(prefs); x++) {
if (fmts & prefs[x])
return prefs[x];
}
ast_log(LOG_WARNING, "Don't know any of %s formats\n", ast_getformatname_multiple(buf, sizeof(buf), fmts));
return 0;
}
| struct ast_channel* ast_bridged_channel | ( | struct ast_channel * | chan | ) | [read] |
Find bridged channel.
- Note:
- This function does _not_ return a reference to the bridged channel. The reason for this is mostly historical. It _should_ return a reference, but it will take a lot of work to make the code base account for that. So, for now, the old rules still apply for how to handle this function. If this function is being used from the channel thread that owns the channel, then a reference is already held, and channel locking is not required to guarantee that the channel will stay around. If this function is used outside of the associated channel thread, the channel parameter 'chan' MUST be locked before calling this function. Also, 'chan' must remain locked for the entire time that the result of this function is being used.
- Parameters:
-
chan Current channel
- Returns:
- A pointer to the bridged channel
Definition at line 6910 of file channel.c.
References ast_channel::_bridge, ast_channel_tech::bridged_channel, and ast_channel::tech.
Referenced by __analog_handle_event(), __analog_ss_thread(), __ast_channel_masquerade(), __ast_read(), __dahdi_exception(), _skinny_show_lines(), action_agents(), action_coreshowchannels(), agents_data_provider_get(), agents_show(), agents_show_online(), analog_attempt_transfer(), analog_exception(), analog_hangup(), analog_ss_thread(), ast_bridge_call(), ast_cel_report_event(), ast_channel_data_add_structure(), ast_channel_set_linkgroup(), ast_do_masquerade(), ast_rtp_instance_set_stats_vars(), ast_set_hangupsource(), ast_var_channel_bridge(), ast_var_channels_table(), attempt_transfer(), cb_events(), channel_spy(), check_bridge(), common_exec(), console_transfer(), create_jb(), dahdi_handle_event(), dahdi_hangup(), export_aoc_vars(), func_channel_read(), get_refer_info(), handle_chanlist(), handle_hd_hf(), handle_invite_replaces(), handle_request(), handle_request_bye(), handle_request_info(), handle_request_refer(), handle_showchan(), handle_soft_key_event_message(), handle_stimulus_message(), key_call(), key_dial_page(), local_attended_transfer(), local_queryoption(), mgcp_hangup(), mgcp_ss(), misdn_attempt_transfer(), mixmonitor_thread(), my_get_sigpvt_bridged_channel(), park_call_full(), pri_dchannel(), schedule_delivery(), serialize_showchan(), sig_pri_attempt_transfer(), sig_pri_handle_hold(), sip_hangup(), sip_set_rtp_peer(), skinny_transfer(), socket_process(), start_spying(), startmon(), TransferCallStep1(), and unistim_hangup().
{
struct ast_channel *bridged;
bridged = chan->_bridge;
if (bridged && bridged->tech->bridged_channel)
bridged = bridged->tech->bridged_channel(chan, bridged);
return bridged;
}
| int ast_call | ( | struct ast_channel * | chan, |
| char * | addr, | ||
| int | timeout | ||
| ) |
Make a call.
- Note:
- Absolutely _NO_ channel locks should be held before calling this function.
- Parameters:
-
chan which channel to make the call on addr destination of the call timeout time to wait on for connect
Place a call, take no longer than timeout ms.
- Returns:
- -1 on failure, 0 on not enough time (does not automatically stop ringing), and the number of seconds the connect took otherwise.
Definition at line 5600 of file channel.c.
References AST_CDR_FLAG_DIALED, ast_channel_lock, ast_channel_unlock, ast_check_hangup(), AST_FLAG_OUTGOING, AST_FLAG_ZOMBIE, ast_set_flag, ast_test_flag, ast_channel_tech::call, ast_channel::cdr, and ast_channel::tech.
Referenced by __ast_request_and_dial(), ast_call_forward(), attempt_reconnect(), begin_dial_channel(), connect_link(), dial_exec_full(), dial_transfer(), do_forward(), do_idle_thread(), feature_request_and_dial(), findmeexec(), play_sound_file(), ring_entry(), rpt(), rpt_exec(), and wait_for_answer().
{
/* Place an outgoing call, but don't wait any longer than timeout ms before returning.
If the remote end does not answer within the timeout, then do NOT hang up, but
return anyway. */
int res = -1;
/* Stop if we're a zombie or need a soft hangup */
ast_channel_lock(chan);
if (!ast_test_flag(chan, AST_FLAG_ZOMBIE) && !ast_check_hangup(chan)) {
if (chan->cdr) {
ast_set_flag(chan->cdr, AST_CDR_FLAG_DIALED);
}
if (chan->tech->call)
res = chan->tech->call(chan, addr, timeout);
ast_set_flag(chan, AST_FLAG_OUTGOING);
}
ast_channel_unlock(chan);
return res;
}
| struct ast_channel* ast_call_forward | ( | struct ast_channel * | caller, |
| struct ast_channel * | orig, | ||
| int * | timeout, | ||
| format_t | format, | ||
| struct outgoing_helper * | oh, | ||
| int * | outstate | ||
| ) | [read] |
Forwards a call to a new channel specified by the original channel's call_forward str. If possible, the new forwarded channel is created and returned while the original one is terminated.
- Parameters:
-
caller in channel that requested orig orig channel being replaced by the call forward channel timeout maximum amount of time to wait for setup of new forward channel format requested channel format oh outgoing helper used with original channel outstate reason why unsuccessful (if uncuccessful)
- Returns:
- Returns the forwarded call's ast_channel on success or NULL on failure
Definition at line 5236 of file channel.c.
References outgoing_helper::account, accountcode, ast_channel::accountcode, ast_call(), AST_CDR_FLAG_ORIGINATED, ast_cdr_setaccount(), ast_channel_lock, ast_channel_lock_both, ast_channel_unlock, ast_copy_flags, ast_copy_string(), ast_hangup(), ast_log(), ast_party_connected_line_copy(), ast_party_redirecting_copy(), ast_request(), ast_set_variables(), ast_string_field_set, ast_channel::call_forward, call_forward_inherit(), cause, ast_channel::cdr, ast_channel::connected, ast_channel::context, ast_channel::data, handle_cause(), LOG_NOTICE, outgoing_helper::parent_channel, pbx_builtin_getvar_helper(), ast_channel::redirecting, S_OR, type, and outgoing_helper::vars.
Referenced by __ast_request_and_dial(), and feature_request_and_dial().
{
char tmpchan[256];
struct ast_channel *new_chan = NULL;
char *data, *type;
int cause = 0;
int res;
/* gather data and request the new forward channel */
ast_copy_string(tmpchan, orig->call_forward, sizeof(tmpchan));
if ((data = strchr(tmpchan, '/'))) {
*data++ = '\0';
type = tmpchan;
} else {
const char *forward_context;
ast_channel_lock(orig);
forward_context = pbx_builtin_getvar_helper(orig, "FORWARD_CONTEXT");
snprintf(tmpchan, sizeof(tmpchan), "%s@%s", orig->call_forward, S_OR(forward_context, orig->context));
ast_channel_unlock(orig);
data = tmpchan;
type = "Local";
}
if (!(new_chan = ast_request(type, format, orig, data, &cause))) {
ast_log(LOG_NOTICE, "Unable to create channel for call forward to '%s/%s' (cause = %d)\n", type, data, cause);
handle_cause(cause, outstate);
ast_hangup(orig);
return NULL;
}
/* Copy/inherit important information into new channel */
if (oh) {
if (oh->vars) {
ast_set_variables(new_chan, oh->vars);
}
if (oh->parent_channel) {
call_forward_inherit(new_chan, oh->parent_channel, orig);
}
if (oh->account) {
ast_channel_lock(new_chan);
ast_cdr_setaccount(new_chan, oh->account);
ast_channel_unlock(new_chan);
}
} else if (caller) { /* no outgoing helper so use caller if avaliable */
call_forward_inherit(new_chan, caller, orig);
}
ast_channel_lock_both(orig, new_chan);
ast_copy_flags(new_chan->cdr, orig->cdr, AST_CDR_FLAG_ORIGINATED);
ast_string_field_set(new_chan, accountcode, orig->accountcode);
ast_party_connected_line_copy(&new_chan->connected, &orig->connected);
ast_party_redirecting_copy(&new_chan->redirecting, &orig->redirecting);
ast_channel_unlock(new_chan);
ast_channel_unlock(orig);
/* call new channel */
res = ast_call(new_chan, data, 0);
if (timeout) {
*timeout = res;
}
if (res) {
ast_log(LOG_NOTICE, "Unable to call forward to channel %s/%s\n", type, (char *)data);
ast_hangup(orig);
ast_hangup(new_chan);
return NULL;
}
ast_hangup(orig);
return new_chan;
}
| void ast_cancel_shutdown | ( | void | ) |
Cancel a shutdown in progress.
Cancels an existing shutdown and returns to normal operation
Definition at line 838 of file channel.c.
Referenced by handle_abort_shutdown().
{
shutting_down = 0;
}
| const char* ast_cause2str | ( | int | cause | ) |
Gives the string form of a given cause code.
- Parameters:
-
state cause to get the description of
- Returns:
- the text form of the binary cause code given
Definition at line 959 of file channel.c.
References ARRAY_LEN, and causes.
Referenced by __transmit_response(), ast_channel_data_add_structure(), ast_do_masquerade(), ast_hangup(), dial_exec_full(), findmeexec(), sip_hangup(), and transmit_request_with_auth().
| void ast_change_name | ( | struct ast_channel * | chan, |
| const char * | newname | ||
| ) |
Change channel name.
- Precondition:
- Absolutely all channels _MUST_ be unlocked before calling this function.
- Parameters:
-
chan the channel to change the name of newname the name to change to
- Returns:
- nothing
- Note:
- this function must _NEVER_ be used when any channels are locked regardless if it is the channel who's name is being changed or not because it invalidates our channel container locking order... lock container first, then the individual channels, never the other way around.
Definition at line 6068 of file channel.c.
References __ast_change_name_nolink(), ao2_link, ao2_unlink, ast_channel_lock, ast_channel_unlock, and channels.
Referenced by update_name().
{
/* We must re-link, as the hash value will change here. */
ao2_unlink(channels, chan);
ast_channel_lock(chan);
__ast_change_name_nolink(chan, newname);
ast_channel_unlock(chan);
ao2_link(channels, chan);
}
| int ast_channel_bridge | ( | struct ast_channel * | c0, |
| struct ast_channel * | c1, | ||
| struct ast_bridge_config * | config, | ||
| struct ast_frame ** | fo, | ||
| struct ast_channel ** | rc | ||
| ) |
Bridge two channels together.
- Parameters:
-
c0 first channel to bridge c1 second channel to bridge config config for the channels fo destination frame(?) rc destination channel(?)
Bridge two channels (c0 and c1) together. If an important frame occurs, we return that frame in *rf (remember, it could be NULL) and which channel (0 or 1) in rc
Definition at line 7253 of file channel.c.
References ast_channel::_bridge, ast_channel::_softhangup, AST_BRIDGE_COMPLETE, AST_BRIDGE_FAILED, AST_BRIDGE_FAILED_NOWARN, AST_BRIDGE_RETRY, ast_channel_clear_softhangup(), ast_channel_make_compatible(), ast_check_hangup(), ast_check_hangup_locked(), ast_clear_flag, AST_CONTROL_SRCUPDATE, ast_debug, AST_FEATURE_PLAY_WARNING, AST_FEATURE_WARNING_ACTIVE, AST_FLAG_END_DTMF_ONLY, AST_FLAG_NBRIDGE, AST_FLAG_ZOMBIE, ast_framehook_list_is_empty(), ast_generic_bridge(), ast_indicate(), ast_log(), ast_manager_event_multichan, ast_samp2tv(), ast_set_flag, ast_set_owners_and_peers(), AST_SOFTHANGUP_UNBRIDGE, ast_test_flag, ast_tvadd(), ast_tvdiff_ms(), ast_tvnow(), ast_tvsub(), ast_tvzero(), ast_verb, ast_channel::audiohooks, ast_channel_tech::bridge, bridge_play_sounds(), bridge_playfile(), ast_channel::caller, ast_bridge_config::end_sound, EVENT_FLAG_CALL, ast_bridge_config::feature_start_time, ast_bridge_config::feature_timer, ast_bridge_config::features_callee, ast_bridge_config::features_caller, ast_bridge_config::flags, ast_channel::framehooks, ast_channel::generator, ast_party_caller::id, LOG_WARNING, manager_bridge_event(), ast_channel::masq, ast_channel::masqr, ast_channel::monitor, ast_channel::name, ast_channel::nativeformats, ast_bridge_config::nexteventts, ast_party_id::number, ast_bridge_config::play_warning, ast_channel::readformat, S_COR, ast_channel_tech::send_digit_begin, ast_bridge_config::start_sound, ast_bridge_config::start_time, ast_party_number::str, ast_channel::tech, ast_bridge_config::timelimit, ast_channel::uniqueid, update_bridge_vars(), ast_party_number::valid, ast_bridge_config::warning_freq, ast_bridge_config::warning_sound, and ast_channel::writeformat.
Referenced by ast_bridge_call().
{
struct ast_channel *chans[2] = { c0, c1 };
enum ast_bridge_result res = AST_BRIDGE_COMPLETE;
format_t o0nativeformats;
format_t o1nativeformats;
long time_left_ms=0;
char caller_warning = 0;
char callee_warning = 0;
*fo = NULL;
if (c0->_bridge) {
ast_log(LOG_WARNING, "%s is already in a bridge with %s\n",
c0->name, c0->_bridge->name);
return -1;
}
if (c1->_bridge) {
ast_log(LOG_WARNING, "%s is already in a bridge with %s\n",
c1->name, c1->_bridge->name);
return -1;
}
/* Stop if we're a zombie or need a soft hangup */
if (ast_test_flag(c0, AST_FLAG_ZOMBIE) || ast_check_hangup_locked(c0) ||
ast_test_flag(c1, AST_FLAG_ZOMBIE) || ast_check_hangup_locked(c1))
return -1;
caller_warning = ast_test_flag(&config->features_caller, AST_FEATURE_PLAY_WARNING);
callee_warning = ast_test_flag(&config->features_callee, AST_FEATURE_PLAY_WARNING);
if (ast_tvzero(config->start_time)) {
config->start_time = ast_tvnow();
if (config->start_sound) {
if (caller_warning) {
bridge_playfile(c0, c1, config->start_sound, config->timelimit / 1000);
}
if (callee_warning) {
bridge_playfile(c1, c0, config->start_sound, config->timelimit / 1000);
}
}
}
/* Keep track of bridge */
c0->_bridge = c1;
c1->_bridge = c0;
ast_set_owners_and_peers(c0, c1);
o0nativeformats = c0->nativeformats;
o1nativeformats = c1->nativeformats;
if (config->feature_timer && !ast_tvzero(config->nexteventts)) {
config->nexteventts = ast_tvadd(config->feature_start_time, ast_samp2tv(config->feature_timer, 1000));
} else if (config->timelimit) {
time_left_ms = config->timelimit - ast_tvdiff_ms(ast_tvnow(), config->start_time);
config->nexteventts = ast_tvadd(config->start_time, ast_samp2tv(config->timelimit, 1000));
if ((caller_warning || callee_warning) && config->play_warning) {
long next_warn = config->play_warning;
if (time_left_ms < config->play_warning && config->warning_freq > 0) {
/* At least one warning was played, which means we are returning after feature */
long warns_passed = (config->play_warning - time_left_ms) / config->warning_freq;
/* It is 'warns_passed * warning_freq' NOT '(warns_passed + 1) * warning_freq',
because nexteventts will be updated once again in the 'if (!to)' block */
next_warn = config->play_warning - warns_passed * config->warning_freq;
}
config->nexteventts = ast_tvsub(config->nexteventts, ast_samp2tv(next_warn, 1000));
}
} else {
config->nexteventts.tv_sec = 0;
config->nexteventts.tv_usec = 0;
}
if (!c0->tech->send_digit_begin)
ast_set_flag(c1, AST_FLAG_END_DTMF_ONLY);
if (!c1->tech->send_digit_begin)
ast_set_flag(c0, AST_FLAG_END_DTMF_ONLY);
manager_bridge_event(1, 1, c0, c1);
/* Before we enter in and bridge these two together tell them both the source of audio has changed */
ast_indicate(c0, AST_CONTROL_SRCUPDATE);
ast_indicate(c1, AST_CONTROL_SRCUPDATE);
for (/* ever */;;) {
struct timeval now = { 0, };
int to;
to = -1;
if (!ast_tvzero(config->nexteventts)) {
now = ast_tvnow();
to = ast_tvdiff_ms(config->nexteventts, now);
if (to <= 0) {
if (!config->timelimit) {
res = AST_BRIDGE_COMPLETE;
break;
}
to = 0;
}
}
if (config->timelimit) {
time_left_ms = config->timelimit - ast_tvdiff_ms(now, config->start_time);
if (time_left_ms < to)
to = time_left_ms;
if (time_left_ms <= 0) {
if (caller_warning && config->end_sound)
bridge_playfile(c0, c1, config->end_sound, 0);
if (callee_warning && config->end_sound)
bridge_playfile(c1, c0, config->end_sound, 0);
*fo = NULL;
res = 0;
break;
}
if (!to) {
if (time_left_ms >= 5000 && config->warning_sound && config->play_warning && ast_test_flag(config, AST_FEATURE_WARNING_ACTIVE)) {
int t = (time_left_ms + 500) / 1000; /* round to nearest second */
if (caller_warning)
bridge_playfile(c0, c1, config->warning_sound, t);
if (callee_warning)
bridge_playfile(c1, c0, config->warning_sound, t);
}
if (config->warning_freq && (time_left_ms > (config->warning_freq + 5000))) {
config->nexteventts = ast_tvadd(config->nexteventts, ast_samp2tv(config->warning_freq, 1000));
} else {
config->nexteventts = ast_tvadd(config->start_time, ast_samp2tv(config->timelimit, 1000));
}
}
ast_clear_flag(config, AST_FEATURE_WARNING_ACTIVE);
}
if ((c0->_softhangup | c1->_softhangup) & AST_SOFTHANGUP_UNBRIDGE) {/* Bit operators are intentional. */
if (c0->_softhangup & AST_SOFTHANGUP_UNBRIDGE) {
ast_channel_clear_softhangup(c0, AST_SOFTHANGUP_UNBRIDGE);
}
if (c1->_softhangup & AST_SOFTHANGUP_UNBRIDGE) {
ast_channel_clear_softhangup(c1, AST_SOFTHANGUP_UNBRIDGE);
}
c0->_bridge = c1;
c1->_bridge = c0;
ast_debug(1, "Unbridge signal received. Ending native bridge.\n");
continue;
}
/* Stop if we're a zombie or need a soft hangup */
if (ast_test_flag(c0, AST_FLAG_ZOMBIE) || ast_check_hangup_locked(c0) ||
ast_test_flag(c1, AST_FLAG_ZOMBIE) || ast_check_hangup_locked(c1)) {
*fo = NULL;
res = 0;
ast_debug(1, "Bridge stops because we're zombie or need a soft hangup: c0=%s, c1=%s, flags: %s,%s,%s,%s\n",
c0->name, c1->name,
ast_test_flag(c0, AST_FLAG_ZOMBIE) ? "Yes" : "No",
ast_check_hangup(c0) ? "Yes" : "No",
ast_test_flag(c1, AST_FLAG_ZOMBIE) ? "Yes" : "No",
ast_check_hangup(c1) ? "Yes" : "No");
break;
}
update_bridge_vars(c0, c1);
bridge_play_sounds(c0, c1);
if (c0->tech->bridge &&
/* if < 1 ms remains use generic bridging for accurate timing */
(!config->timelimit || to > 1000 || to == 0) &&
(c0->tech->bridge == c1->tech->bridge) &&
!c0->monitor && !c1->monitor &&
!c0->audiohooks && !c1->audiohooks &&
ast_framehook_list_is_empty(c0->framehooks) && ast_framehook_list_is_empty(c1->framehooks) &&
!c0->masq && !c0->masqr && !c1->masq && !c1->masqr) {
int timeoutms = to - 1000 > 0 ? to - 1000 : to;
/* Looks like they share a bridge method and nothing else is in the way */
ast_set_flag(c0, AST_FLAG_NBRIDGE);
ast_set_flag(c1, AST_FLAG_NBRIDGE);
if ((res = c0->tech->bridge(c0, c1, config->flags, fo, rc, timeoutms)) == AST_BRIDGE_COMPLETE) {
ast_manager_event_multichan(EVENT_FLAG_CALL, "Unlink", 2, chans,
"Channel1: %s\r\n"
"Channel2: %s\r\n"
"Uniqueid1: %s\r\n"
"Uniqueid2: %s\r\n"
"CallerID1: %s\r\n"
"CallerID2: %s\r\n",
c0->name, c1->name,
c0->uniqueid, c1->uniqueid,
S_COR(c0->caller.id.number.valid, c0->caller.id.number.str, "<unknown>"),
S_COR(c1->caller.id.number.valid, c1->caller.id.number.str, "<unknown>"));
ast_debug(1, "Returning from native bridge, channels: %s, %s\n", c0->name, c1->name);
ast_clear_flag(c0, AST_FLAG_NBRIDGE);
ast_clear_flag(c1, AST_FLAG_NBRIDGE);
if ((c0->_softhangup | c1->_softhangup) & AST_SOFTHANGUP_UNBRIDGE) {/* Bit operators are intentional. */
continue;
}
c0->_bridge = NULL;
c1->_bridge = NULL;
return res;
} else {
ast_clear_flag(c0, AST_FLAG_NBRIDGE);
ast_clear_flag(c1, AST_FLAG_NBRIDGE);
}
switch (res) {
case AST_BRIDGE_RETRY:
if (config->play_warning) {
ast_set_flag(config, AST_FEATURE_WARNING_ACTIVE);
}
continue;
default:
ast_verb(3, "Native bridging %s and %s ended\n", c0->name, c1->name);
/* fallthrough */
case AST_BRIDGE_FAILED_NOWARN:
break;
}
}
if (((c0->writeformat != c1->readformat) || (c0->readformat != c1->writeformat) ||
(c0->nativeformats != o0nativeformats) || (c1->nativeformats != o1nativeformats)) &&
!(c0->generator || c1->generator)) {
if (ast_channel_make_compatible(c0, c1)) {
ast_log(LOG_WARNING, "Can't make %s and %s compatible\n", c0->name, c1->name);
manager_bridge_event(0, 1, c0, c1);
return AST_BRIDGE_FAILED;
}
o0nativeformats = c0->nativeformats;
o1nativeformats = c1->nativeformats;
}
update_bridge_vars(c0, c1);
res = ast_generic_bridge(c0, c1, config, fo, rc);
if (res != AST_BRIDGE_RETRY) {
break;
} else if (config->feature_timer) {
/* feature timer expired but has not been updated, sending to ast_bridge_call to do so */
break;
}
}
ast_clear_flag(c0, AST_FLAG_END_DTMF_ONLY);
ast_clear_flag(c1, AST_FLAG_END_DTMF_ONLY);
/* Now that we have broken the bridge the source will change yet again */
ast_indicate(c0, AST_CONTROL_SRCUPDATE);
ast_indicate(c1, AST_CONTROL_SRCUPDATE);
c0->_bridge = NULL;
c1->_bridge = NULL;
ast_manager_event_multichan(EVENT_FLAG_CALL, "Unlink", 2, chans,
"Channel1: %s\r\n"
"Channel2: %s\r\n"
"Uniqueid1: %s\r\n"
"Uniqueid2: %s\r\n"
"CallerID1: %s\r\n"
"CallerID2: %s\r\n",
c0->name, c1->name,
c0->uniqueid, c1->uniqueid,
S_COR(c0->caller.id.number.valid, c0->caller.id.number.str, "<unknown>"),
S_COR(c1->caller.id.number.valid, c1->caller.id.number.str, "<unknown>"));
ast_debug(1, "Bridge stops bridging channels %s and %s\n", c0->name, c1->name);
return res;
}
| struct ast_channel* ast_channel_callback | ( | ao2_callback_data_fn * | cb_fn, |
| void * | arg, | ||
| void * | data, | ||
| int | ao2_flags | ||
| ) | [read] |
Call a function with every active channel.
This function executes a callback one time for each active channel on the system. The channel is provided as an argument to the function.
- Note:
- Absolutely _NO_ channel locks should be held before calling this function.
- Since:
- 1.8
Definition at line 1595 of file channel.c.
References ao2_callback_data, and channels.
Referenced by ast_cel_check_retire_linkedid(), ast_pickup_call(), handle_core_set_debug_channel(), my_ast_get_channel_by_name_locked(), pickup_by_group(), pickup_by_mark(), pickup_by_part(), and state_notify_build_xml().
{
return ao2_callback_data(channels, ao2_flags, cb_fn, arg, data);
}
| int ast_channel_cc_params_init | ( | struct ast_channel * | chan, |
| const struct ast_cc_config_params * | base_params | ||
| ) |
Set up datastore with CCSS parameters for a channel.
- Since:
- 1.8
- Note:
- If base_params is NULL, the channel will get the default values for all CCSS parameters.
This function makes use of datastore operations on the channel, so it is important to lock the channel before calling this function.
- Parameters:
-
chan The channel to create the datastore on base_params CCSS parameters we wish to copy into the channel
- Return values:
-
0 Success -1 Failure
Definition at line 9414 of file channel.c.
References ast_cc_config_params_destroy(), ast_cc_config_params_init, ast_cc_copy_config_params(), ast_channel_datastore_add(), ast_datastore_alloc(), and ast_datastore::data.
Referenced by ast_channel_get_cc_config_params(), dahdi_new(), local_call(), local_request(), and sip_new().
{
struct ast_cc_config_params *cc_params;
struct ast_datastore *cc_datastore;
if (!(cc_params = ast_cc_config_params_init())) {
return -1;
}
if (!(cc_datastore = ast_datastore_alloc(&cc_channel_datastore_info, NULL))) {
ast_cc_config_params_destroy(cc_params);
return -1;
}
if (base_params) {
ast_cc_copy_config_params(cc_params, base_params);
}
cc_datastore->data = cc_params;
ast_channel_datastore_add(chan, cc_datastore);
return 0;
}
| void ast_channel_clear_softhangup | ( | struct ast_channel * | chan, |
| int | flag | ||
| ) |
Clear a set of softhangup flags from a channel.
Never clear a softhangup flag from a channel directly. Instead, use this function. This ensures that all aspects of the softhangup process are aborted.
- Parameters:
-
chan the channel to clear the flag on flag the flag or flags to clear
- Returns:
- Nothing.
Definition at line 2652 of file channel.c.
References ast_channel::_softhangup, ast_channel_lock, ast_channel_unlock, AST_CONTROL_END_OF_Q, AST_FRAME_CONTROL, ast_frfree, AST_LIST_LAST, AST_LIST_REMOVE, ast_frame::frametype, ast_frame_subclass::integer, ast_channel::readq, and ast_frame::subclass.
Referenced by __ast_pbx_run(), ast_channel_bridge(), ast_generic_bridge(), check_goto_on_transfer(), and collect_digits().
{
ast_channel_lock(chan);
chan->_softhangup &= ~flag;
if (!chan->_softhangup) {
struct ast_frame *fr;
/* If we have completely cleared the softhangup flag,
* then we need to fully abort the hangup process. This requires
* pulling the END_OF_Q frame out of the channel frame queue if it
* still happens to be there. */
fr = AST_LIST_LAST(&chan->readq);
if (fr && fr->frametype == AST_FRAME_CONTROL &&
fr->subclass.integer == AST_CONTROL_END_OF_Q) {
AST_LIST_REMOVE(&chan->readq, fr, frame_list);
ast_frfree(fr);
}
}
ast_channel_unlock(chan);
}
| int ast_channel_cmpwhentohangup | ( | struct ast_channel * | chan, |
| time_t | offset | ||
| ) |
Compare a offset with the settings of when to hang a channel up.
- Parameters:
-
chan channel on which to check for hang up offset offset in seconds from current time
- Returns:
- 1, 0, or -1
This function compares a offset from current time with the absolute time out on a channel (when to hang up). If the absolute time out on a channel is earlier than current time plus the offset, it returns 1, if the two time values are equal, it return 0, otherwise, it return -1.
- See also:
- ast_channel_cmpwhentohangup_tv()
- Version:
- 1.6.1 deprecated function (only had seconds precision)
Definition at line 879 of file channel.c.
References ast_channel_cmpwhentohangup_tv().
{
struct timeval when = { offset, };
return ast_channel_cmpwhentohangup_tv(chan, when);
}
| int ast_channel_cmpwhentohangup_tv | ( | struct ast_channel * | chan, |
| struct timeval | offset | ||
| ) |
Compare a offset with the settings of when to hang a channel up.
- Parameters:
-
chan channel on which to check for hangup offset offset in seconds and microseconds from current time
- Returns:
- 1, 0, or -1 This function compares a offset from current time with the absolute time out on a channel (when to hang up). If the absolute time out on a channel is earlier than current time plus the offset, it returns 1, if the two time values are equal, it return 0, otherwise, it return -1.
- Since:
- 1.6.1
Definition at line 864 of file channel.c.
References ast_tvadd(), ast_tvdiff_ms(), ast_tvnow(), ast_tvzero(), and ast_channel::whentohangup.
Referenced by ast_channel_cmpwhentohangup().
{
struct timeval whentohangup;
if (ast_tvzero(chan->whentohangup))
return ast_tvzero(offset) ? 0 : -1;
if (ast_tvzero(offset))
return 1;
whentohangup = ast_tvadd(offset, ast_tvnow());
return ast_tvdiff_ms(whentohangup, chan->whentohangup);
}
| int ast_channel_connected_line_macro | ( | struct ast_channel * | autoservice_chan, |
| struct ast_channel * | macro_chan, | ||
| const void * | connected_info, | ||
| int | caller, | ||
| int | frame | ||
| ) |
Run a connected line interception macro and update a channel's connected line information.
- Since:
- 1.8 Whenever we want to update a channel's connected line information, we may need to run a macro so that an administrator can manipulate the information before sending it out. This function both runs the macro and sends the update to the channel.
- Parameters:
-
autoservice_chan Channel to place into autoservice while the macro is running. It is perfectly safe for this to be NULL macro_chan The channel to run the macro on. Also the channel from which we determine which macro we need to run. connected_info Either an ast_party_connected_line or ast_frame pointer of type AST_CONTROL_CONNECTED_LINE caller If true, then run CONNECTED_LINE_CALLER_SEND_MACRO, otherwise run CONNECTED_LINE_CALLEE_SEND_MACRO frame If true, then connected_info is an ast_frame pointer, otherwise it is an ast_party_connected_line pointer.
- Return values:
-
0 Success -1 Either the macro does not exist, or there was an error while attempting to run the macro
- Todo:
Have multiple return codes based on the MACRO_RESULT
Make constants so that caller and frame can be more expressive than just '1' and '0'
Definition at line 9312 of file channel.c.
References ast_app_run_macro(), ast_channel_lock, ast_channel_unlock, ast_channel_update_connected_line(), ast_connected_line_parse_data(), ast_party_connected_line_copy(), ast_strdupa, ast_strlen_zero(), chanlist::connected, ast_channel::connected, ast_frame::data, ast_frame::datalen, pbx_builtin_getvar_helper(), ast_frame::ptr, and S_OR.
Referenced by __ast_read(), ast_bridge_call(), ast_do_pickup(), ast_generic_bridge(), atxfer_fail_cleanup(), builtin_atxfer(), feature_request_and_dial(), handle_frame(), local_bridge_loop(), parked_call_exec(), remote_bridge_loop(), and wait_for_answer().
{
const char *macro;
const char *macro_args;
int retval;
ast_channel_lock(macro_chan);
macro = pbx_builtin_getvar_helper(macro_chan, is_caller
? "CONNECTED_LINE_CALLER_SEND_MACRO" : "CONNECTED_LINE_CALLEE_SEND_MACRO");
macro = ast_strdupa(S_OR(macro, ""));
macro_args = pbx_builtin_getvar_helper(macro_chan, is_caller
? "CONNECTED_LINE_CALLER_SEND_MACRO_ARGS" : "CONNECTED_LINE_CALLEE_SEND_MACRO_ARGS");
macro_args = ast_strdupa(S_OR(macro_args, ""));
if (ast_strlen_zero(macro)) {
ast_channel_unlock(macro_chan);
return -1;
}
if (is_frame) {
const struct ast_frame *frame = connected_info;
ast_connected_line_parse_data(frame->data.ptr, frame->datalen, ¯o_chan->connected);
} else {
const struct ast_party_connected_line *connected = connected_info;
ast_party_connected_line_copy(¯o_chan->connected, connected);
}
ast_channel_unlock(macro_chan);
if (!(retval = ast_app_run_macro(autoservice_chan, macro_chan, macro, macro_args))) {
ast_channel_lock(macro_chan);
ast_channel_update_connected_line(macro_chan, ¯o_chan->connected, NULL);
ast_channel_unlock(macro_chan);
}
return retval;
}
| int ast_channel_data_add_structure | ( | struct ast_data * | tree, |
| struct ast_channel * | chan, | ||
| int | add_bridged | ||
| ) |
Insert into an astdata tree, the channel structure.
- Parameters:
-
[in] tree The ast data tree. [in] chan The channel structure to add to tree. [in] add_bridged Add the bridged channel to the structure.
- Return values:
-
<0 on error. 0 on success.
Definition at line 342 of file channel.c.
References ast_channel::_softhangup, ast_channel::_state, ast_channel::amaflags, ast_bridged_channel(), ast_cause2str(), ast_cdr_data_add_structure(), ast_cdr_flags2str(), ast_channel_data_add_structure(), ast_data_add_bool(), ast_data_add_codecs(), ast_data_add_int(), ast_data_add_node(), ast_data_add_str(), ast_data_add_structure, ast_data_add_uint(), AST_SOFTHANGUP_APPUNLOAD, AST_SOFTHANGUP_ASYNCGOTO, AST_SOFTHANGUP_DEV, AST_SOFTHANGUP_EXPLICIT, AST_SOFTHANGUP_SHUTDOWN, AST_SOFTHANGUP_TIMEOUT, AST_SOFTHANGUP_UNBRIDGE, ast_state2str(), ast_tone_zone_data_add_structure(), ast_transfercapability2str(), ast_channel::cdr, channel_data_add_flags(), ast_channel::hangupcause, ast_channel::nativeformats, ast_channel::oldwriteformat, ast_channel::rawreadformat, ast_channel::rawwriteformat, ast_channel::readformat, ast_channel::transfercapability, ast_channel::whentohangup, ast_channel::writeformat, and ast_channel::zone.
Referenced by agents_data_provider_get(), ast_channel_data_add_structure(), data_channels_provider_handler(), queues_data_provider_get_helper(), and user_add_provider_cb().
{
struct ast_channel *bc;
struct ast_data *data_bridged;
struct ast_data *data_cdr;
struct ast_data *data_flags;
struct ast_data *data_zones;
struct ast_data *enum_node;
struct ast_data *data_softhangup;
#if 0 /* XXX AstData: ast_callerid no longer exists. (Equivalent code not readily apparent.) */
struct ast_data *data_callerid;
char value_str[100];
#endif
if (!tree) {
return -1;
}
ast_data_add_structure(ast_channel, tree, chan);
if (add_bridged) {
bc = ast_bridged_channel(chan);
if (bc) {
data_bridged = ast_data_add_node(tree, "bridged");
if (!data_bridged) {
return -1;
}
ast_channel_data_add_structure(data_bridged, bc, 0);
}
}
ast_data_add_codecs(tree, "oldwriteformat", chan->oldwriteformat);
ast_data_add_codecs(tree, "nativeformats", chan->nativeformats);
ast_data_add_codecs(tree, "readformat", chan->readformat);
ast_data_add_codecs(tree, "writeformat", chan->writeformat);
ast_data_add_codecs(tree, "rawreadformat", chan->rawreadformat);
ast_data_add_codecs(tree, "rawwriteformat", chan->rawwriteformat);
/* state */
enum_node = ast_data_add_node(tree, "state");
if (!enum_node) {
return -1;
}
ast_data_add_str(enum_node, "text", ast_state2str(chan->_state));
ast_data_add_int(enum_node, "value", chan->_state);
/* hangupcause */
enum_node = ast_data_add_node(tree, "hangupcause");
if (!enum_node) {
return -1;
}
ast_data_add_str(enum_node, "text", ast_cause2str(chan->hangupcause));
ast_data_add_int(enum_node, "value", chan->hangupcause);
/* amaflags */
enum_node = ast_data_add_node(tree, "amaflags");
if (!enum_node) {
return -1;
}
ast_data_add_str(enum_node, "text", ast_cdr_flags2str(chan->amaflags));
ast_data_add_int(enum_node, "value", chan->amaflags);
/* transfercapability */
enum_node = ast_data_add_node(tree, "transfercapability");
if (!enum_node) {
return -1;
}
ast_data_add_str(enum_node, "text", ast_transfercapability2str(chan->transfercapability));
ast_data_add_int(enum_node, "value", chan->transfercapability);
/* _softphangup */
data_softhangup = ast_data_add_node(tree, "softhangup");
if (!data_softhangup) {
return -1;
}
ast_data_add_bool(data_softhangup, "dev", chan->_softhangup & AST_SOFTHANGUP_DEV);
ast_data_add_bool(data_softhangup, "asyncgoto", chan->_softhangup & AST_SOFTHANGUP_ASYNCGOTO);
ast_data_add_bool(data_softhangup, "shutdown", chan->_softhangup & AST_SOFTHANGUP_SHUTDOWN);
ast_data_add_bool(data_softhangup, "timeout", chan->_softhangup & AST_SOFTHANGUP_TIMEOUT);
ast_data_add_bool(data_softhangup, "appunload", chan->_softhangup & AST_SOFTHANGUP_APPUNLOAD);
ast_data_add_bool(data_softhangup, "explicit", chan->_softhangup & AST_SOFTHANGUP_EXPLICIT);
ast_data_add_bool(data_softhangup, "unbridge", chan->_softhangup & AST_SOFTHANGUP_UNBRIDGE);
/* channel flags */
data_flags = ast_data_add_node(tree, "flags");
if (!data_flags) {
return -1;
}
channel_data_add_flags(data_flags, chan);
ast_data_add_uint(tree, "timetohangup", chan->whentohangup.tv_sec);
#if 0 /* XXX AstData: ast_callerid no longer exists. (Equivalent code not readily apparent.) */
/* callerid */
data_callerid = ast_data_add_node(tree, "callerid");
if (!data_callerid) {
return -1;
}
ast_data_add_structure(ast_callerid, data_callerid, &(chan->cid));
/* insert the callerid ton */
enum_node = ast_data_add_node(data_callerid, "cid_ton");
if (!enum_node) {
return -1;
}
ast_data_add_int(enum_node, "value", chan->cid.cid_ton);
snprintf(value_str, sizeof(value_str), "TON: %s/Plan: %s",
party_number_ton2str(chan->cid.cid_ton),
party_number_plan2str(chan->cid.cid_ton));
ast_data_add_str(enum_node, "text", value_str);
#endif
/* tone zone */
if (chan->zone) {
data_zones = ast_data_add_node(tree, "zone");
if (!data_zones) {
return -1;
}
ast_tone_zone_data_add_structure(data_zones, chan->zone);
}
/* insert cdr */
data_cdr = ast_data_add_node(tree, "cdr");
if (!data_cdr) {
return -1;
}
ast_cdr_data_add_structure(data_cdr, chan->cdr, 1);
return 0;
}
| int ast_channel_data_cmp_structure | ( | const struct ast_data_search * | tree, |
| struct ast_channel * | chan, | ||
| const char * | structure_name | ||
| ) |
Compare to channel structures using the data api.
- Parameters:
-
[in] tree The search tree generated by the data api. [in] chan The channel to compare. [in] structure_name The name of the node of the channel structure.
- Return values:
-
0 The structure matches. 1 The structure doesn't matches.
Definition at line 474 of file channel.c.
References ast_data_search_cmp_structure.
{
return ast_data_search_cmp_structure(tree, ast_channel, chan, structure_name);
}
| int ast_channel_datastore_add | ( | struct ast_channel * | chan, |
| struct ast_datastore * | datastore | ||
| ) |
Add a datastore to a channel.
- Note:
- The channel should be locked before calling this function.
- Return values:
-
0 success non-zero failure
Definition at line 2535 of file channel.c.
References AST_LIST_INSERT_HEAD, and ast_channel::datastores.
Referenced by __ast_channel_masquerade(), _macro_exec(), acf_curlopt_write(), acf_iaxvar_write(), acf_odbc_read(), add_features_datastores(), add_to_agi(), apply_plc(), ast_channel_cc_params_init(), ast_do_pickup(), ast_iax2_new(), ast_setup_cc_recall_datastore(), audiohook_volume_get(), authenticate_reply(), calendar_query_exec(), cc_interfaces_datastore_init(), dial_exec_full(), do_notify(), dundi_query_read(), enable_jack_hook(), enum_query_read(), find_or_create_details(), find_transaction(), frame_trace_helper(), func_channel_write_real(), get_lock(), gosub_exec(), lua_get_state(), mute_add_audiohook(), pitchshift_helper(), raise_exception(), setup_inheritance_datastore(), setup_mixmonitor_ds(), setup_transfer_datastore(), shared_write(), smdi_msg_retrieve_read(), socket_process(), speech_create(), speex_write(), srv_datastore_setup(), try_calling(), and volume_write().
{
int res = 0;
AST_LIST_INSERT_HEAD(&chan->datastores, datastore, entry);
return res;
}
| struct ast_datastore* attribute_malloc ast_channel_datastore_alloc | ( | const struct ast_datastore_info * | info, |
| const char * | uid | ||
| ) | [read] |
Create a channel data store object.
- Note:
- None of the datastore API calls lock the ast_channel they are using. So, the channel should be locked before calling the functions that take a channel argument.
- Deprecated:
- You should use the ast_datastore_alloc() generic function instead.
- Version:
- 1.6.1 deprecated
Definition at line 2508 of file channel.c.
References ast_datastore_alloc().
{
return ast_datastore_alloc(info, uid);
}
| struct ast_datastore* ast_channel_datastore_find | ( | struct ast_channel * | chan, |
| const struct ast_datastore_info * | info, | ||
| const char * | uid | ||
| ) | [read] |
Find a datastore on a channel.
- Note:
- The channel should be locked before calling this function.
- The datastore returned from this function must not be used if the reference to the channel is released.
- Return values:
-
pointer to the datastore if found NULL if not found
Definition at line 2549 of file channel.c.
References AST_LIST_TRAVERSE, ast_channel::datastores, ast_datastore::info, and ast_datastore::uid.
Referenced by _macro_exec(), acf_curl_helper(), acf_curlopt_helper(), acf_curlopt_write(), acf_exception_read(), acf_fetch(), acf_iaxvar_read(), acf_iaxvar_write(), acf_odbc_read(), add_agi_cmd(), add_features_datastores(), add_to_agi(), apply_plc(), ast_can_pickup(), ast_cc_agent_set_interfaces_chanvar(), ast_cc_call_init(), ast_cc_completed(), ast_cc_extension_monitor_add_dialstring(), ast_cc_get_current_core_id(), ast_cc_is_recall(), ast_cc_offer(), ast_channel_get_cc_config_params(), ast_do_masquerade(), ast_handle_cc_control_frame(), ast_ignore_cc(), ast_odbc_retrieve_transaction_obj(), ast_set_cc_interfaces_chanvar(), attended_transfer_occurred(), audiohook_volume_callback(), audiohook_volume_get(), builtin_atxfer(), calendar_event_read(), calendar_query_exec(), calendar_query_result_exec(), cc_build_payload(), clear_dialed_interfaces(), dial_exec_full(), disable_jack_hook(), dundi_result_read(), enable_jack_hook(), enum_result_read(), exec_odbcfinish(), find_details(), find_speech(), find_transaction(), frame_trace_helper(), func_channel_read(), func_channel_write_real(), func_inheritance_write(), func_mute_write(), get_agi_cmd(), get_lock(), gosub_exec(), handle_gosub(), iax2_call(), jack_hook_callback(), local_read(), local_write(), lock_fixup(), lua_get_state(), manage_parked_call(), manager_mutestream(), mark_transaction_active(), mute_callback(), parked_call_exec(), pitchshift_cb(), pitchshift_helper(), pop_exec(), queue_transfer_fixup(), raise_exception(), release_transaction(), return_exec(), set_security_requirements(), shared_read(), shared_write(), smdi_msg_read(), speech_background(), speech_destroy(), speex_callback(), speex_read(), speex_write(), srv_query_read(), srv_result_read(), stop_mixmonitor_exec(), try_calling(), unlock_read(), volume_callback(), and volume_write().
{
struct ast_datastore *datastore = NULL;
if (info == NULL)
return NULL;
AST_LIST_TRAVERSE(&chan->datastores, datastore, entry) {
if (datastore->info != info) {
continue;
}
if (uid == NULL) {
/* matched by type only */
break;
}
if ((datastore->uid != NULL) && !strcasecmp(uid, datastore->uid)) {
/* Matched by type AND uid */
break;
}
}
return datastore;
}
| int ast_channel_datastore_free | ( | struct ast_datastore * | datastore | ) |
Free a channel data store object.
- Deprecated:
- You should use the ast_datastore_free() generic function instead.
- Version:
- 1.6.1 deprecated
Definition at line 2513 of file channel.c.
References ast_datastore_free().
{
return ast_datastore_free(datastore);
}
| int ast_channel_datastore_inherit | ( | struct ast_channel * | from, |
| struct ast_channel * | to | ||
| ) |
Inherit datastores from a parent to a child.
Definition at line 2518 of file channel.c.
References ast_datastore_alloc(), AST_LIST_INSERT_TAIL, AST_LIST_TRAVERSE, ast_datastore::data, DATASTORE_INHERIT_FOREVER, ast_channel::datastores, ast_datastore_info::duplicate, ast_datastore::info, ast_datastore::inheritance, and ast_datastore::uid.
Referenced by __ast_request_and_dial(), begin_dial_channel(), call_forward_inherit(), dial_exec_full(), dial_transfer(), do_forward(), findmeexec(), local_call(), ring_entry(), and wait_for_answer().
{
struct ast_datastore *datastore = NULL, *datastore2;
AST_LIST_TRAVERSE(&from->datastores, datastore, entry) {
if (datastore->inheritance > 0) {
datastore2 = ast_datastore_alloc(datastore->info, datastore->uid);
if (datastore2) {
datastore2->data = datastore->info->duplicate ? datastore->info->duplicate(datastore->data) : NULL;
datastore2->inheritance = datastore->inheritance == DATASTORE_INHERIT_FOREVER ? DATASTORE_INHERIT_FOREVER : datastore->inheritance - 1;
AST_LIST_INSERT_TAIL(&to->datastores, datastore2, entry);
}
}
}
return 0;
}
| int ast_channel_datastore_remove | ( | struct ast_channel * | chan, |
| struct ast_datastore * | datastore | ||
| ) |
Remove a datastore from a channel.
- Note:
- The channel should be locked before calling this function.
- Return values:
-
0 success non-zero failure
Definition at line 2544 of file channel.c.
References AST_LIST_REMOVE, and ast_channel::datastores.
Referenced by acf_fetch(), acf_odbc_read(), adjust_frame_for_plc(), ast_do_masquerade(), ast_do_pickup(), clear_dialed_interfaces(), dial_exec_full(), disable_jack_hook(), exec_odbcfinish(), frame_trace_helper(), lua_get_state(), queue_transfer_fixup(), speech_background(), speech_destroy(), speex_write(), srv_query_read(), stop_mixmonitor_exec(), and try_calling().
{
return AST_LIST_REMOVE(&chan->datastores, datastore, entry) ? 0 : -1;
}
| int ast_channel_defer_dtmf | ( | struct ast_channel * | chan | ) |
Defers DTMF so that you only read things like hangups and audio.
- Returns:
- non-zero if channel was already DTMF-deferred or 0 if channel is just now being DTMF-deferred
Definition at line 1577 of file channel.c.
References AST_FLAG_DEFER_DTMF, ast_set_flag, and ast_test_flag.
Referenced by __adsi_transmit_messages(), and find_cache().
{
int pre = 0;
if (chan) {
pre = ast_test_flag(chan, AST_FLAG_DEFER_DTMF);
ast_set_flag(chan, AST_FLAG_DEFER_DTMF);
}
return pre;
}
| int ast_channel_early_bridge | ( | struct ast_channel * | c0, |
| struct ast_channel * | c1 | ||
| ) |
Bridge two channels together (early)
- Parameters:
-
c0 first channel to bridge c1 second channel to bridge
Bridge two channels (c0 and c1) together early. This implies either side may not be answered yet.
- Returns:
- Returns 0 on success and -1 if it could not be done
Definition at line 7153 of file channel.c.
References ast_channel_tech::early_bridge, and ast_channel::tech.
Referenced by dial_exec_full(), and wait_for_answer().
{
/* Make sure we can early bridge, if not error out */
if (!c0->tech->early_bridge || (c1 && (!c1->tech->early_bridge || c0->tech->early_bridge != c1->tech->early_bridge)))
return -1;
return c0->tech->early_bridge(c0, c1);
}
| struct ast_channel* ast_channel_get_by_exten | ( | const char * | exten, |
| const char * | context | ||
| ) | [read] |
Find a channel by extension and context.
- exten the extension to search for
- context the context to search for (optional)
Return a channel that is currently at the specified extension and context.
- Return values:
-
a channel that is at the specified extension and context NULL if no channel was found
- Since:
- 1.8
Definition at line 1774 of file channel.c.
References ast_channel_get_full().
{
return ast_channel_get_full(NULL, 0, exten, context);
}
| struct ast_channel* ast_channel_get_by_name | ( | const char * | name | ) | [read] |
Find a channel by name.
Channel search functions
- name the name or uniqueid of the channel to search for
Find a channel that has the same name as the provided argument.
- Return values:
-
a channel with the name specified by the argument NULL if no channel was found
- Since:
- 1.8
Definition at line 1764 of file channel.c.
References ast_channel_get_full().
Referenced by action_add_agi_cmd(), action_aocmessage(), action_atxfer(), action_getvar(), action_hangup(), action_redirect(), action_sendtext(), action_setvar(), action_status(), action_timeout(), ast_async_goto_by_name(), ast_bridge_call(), asyncgoto_exec(), change_monitor_action(), do_pause_or_unpause(), func_mchan_read(), func_mchan_write(), handle_channelstatus(), handle_cli_agi_add_cmd(), handle_core_set_debug_channel(), handle_getvariablefull(), handle_hangup(), handle_redirect(), handle_set_chanvar(), handle_show_chanvar(), handle_showchan(), handle_softhangup(), import_helper(), manager_mute_mixmonitor(), manager_mutestream(), manager_optimize_away(), manager_park(), manager_play_dtmf(), park_call_full(), pbx_builtin_importvar(), senddtmf_exec(), shared_read(), shared_write(), start_monitor_action(), and stop_monitor_action().
{
return ast_channel_get_full(name, 0, NULL, NULL);
}
| struct ast_channel* ast_channel_get_by_name_prefix | ( | const char * | name, |
| size_t | name_len | ||
| ) | [read] |
Find a channel by a name prefix.
- name The channel name or uniqueid prefix to search for
- name_len Only search for up to this many characters from the name
Find a channel that has the same name prefix as specified by the arguments.
- Return values:
-
a channel with the name prefix specified by the arguments NULL if no channel was found
- Since:
- 1.8
Definition at line 1769 of file channel.c.
References ast_channel_get_full().
Referenced by action_aocmessage(), action_bridge(), ast_parse_device_state(), bridge_exec(), cc_generic_agent_stop_ringing(), common_exec(), handle_cli_mixmonitor(), shared_read(), and shared_write().
{
return ast_channel_get_full(name, name_len, NULL, NULL);
}
| int ast_channel_get_cc_agent_type | ( | struct ast_channel * | chan, |
| char * | agent_type, | ||
| size_t | size | ||
| ) |
Find the appropriate CC agent type to use given a channel.
- Since:
- 1.8
During call completion, we will need to create a call completion agent structure. To figure out the type of agent to construct, we need to ask the channel driver for the appropriate type.
Prior to adding this function, the call completion core attempted to figure this out for itself by stripping the technology off the channel's name. However, in the case of chan_dahdi, there are multiple agent types registered, and so simply searching for an agent type called "DAHDI" is not possible. In a case where multiple agent types are defined, the channel driver must have a queryoption callback defined in its channel_tech, and the queryoption callback must handle AST_OPTION_CC_AGENT_TYPE
If a channel driver does not have a queryoption callback or if the queryoption callback does not handle AST_OPTION_CC_AGENT_TYPE, then the old behavior of using the technology portion of the channel name is used instead. This is perfectly suitable for channel drivers whose channel technologies are a one-to-one match with the agent types defined within.
Note that this function is only called when the agent policy on a given channel is set to "native." Generic agents' type can be determined automatically by the core.
- Parameters:
-
chan The channel for which we wish to retrieve the agent type [out] agent_type The type of agent the channel driver wants us to use size The size of the buffer to write to
Definition at line 9476 of file channel.c.
References ast_channel_queryoption(), ast_copy_string(), AST_OPTION_CC_AGENT_TYPE, and ast_channel::name.
Referenced by find_agent_callbacks().
{
int len = size;
char *slash;
if (!ast_channel_queryoption(chan, AST_OPTION_CC_AGENT_TYPE, agent_type, &len, 0)) {
return 0;
}
ast_copy_string(agent_type, chan->name, size);
if ((slash = strchr(agent_type, '/'))) {
*slash = '\0';
}
return 0;
}
| struct ast_cc_config_params* ast_channel_get_cc_config_params | ( | struct ast_channel * | chan | ) | [read] |
Get the CCSS parameters from a channel.
- Since:
- 1.8
This function makes use of datastore operations on the channel, so it is important to lock the channel before calling this function.
- Parameters:
-
chan Channel to retrieve parameters from
- Return values:
-
NULL Failure non-NULL The parameters desired
Definition at line 9437 of file channel.c.
References ast_assert, ast_channel_cc_params_init(), ast_channel_datastore_find(), and ast_datastore::data.
Referenced by acf_cc_read(), acf_cc_write(), analog_call(), ast_cc_call_failed(), ast_cc_call_init(), ast_queue_cc_frame(), cc_agent_init(), cc_core_init_instance(), find_agent_callbacks(), local_call(), local_request(), sig_pri_cc_available(), and sig_pri_cc_generic_check().
{
struct ast_datastore *cc_datastore;
if (!(cc_datastore = ast_channel_datastore_find(chan, &cc_channel_datastore_info, NULL))) {
/* If we can't find the datastore, it almost definitely means that the channel type being
* used has not had its driver modified to parse CC config parameters. The best action
* to take here is to create the parameters on the spot with the defaults set.
*/
if (ast_channel_cc_params_init(chan, NULL)) {
return NULL;
}
if (!(cc_datastore = ast_channel_datastore_find(chan, &cc_channel_datastore_info, NULL))) {
/* Should be impossible */
return NULL;
}
}
ast_assert(cc_datastore->data != NULL);
return cc_datastore->data;
}
| int ast_channel_get_device_name | ( | struct ast_channel * | chan, |
| char * | device_name, | ||
| size_t | name_buffer_length | ||
| ) |
Get a device name given its channel structure.
- Since:
- 1.8
A common practice in Asterisk is to determine the device being talked to by dissecting the channel name. For certain channel types, this is not accurate. For instance, an ISDN channel is named based on what B channel is used, not the device being communicated with.
This function interfaces with a channel tech's queryoption callback to retrieve the name of the device being communicated with. If the channel does not implement this specific option, then the traditional method of using the channel name is used instead.
- Parameters:
-
chan The channel to retrieve the information from [out] device_name The buffer to place the device's name into name_buffer_length The allocated space for the device_name
- Returns:
- 0 always
Definition at line 9459 of file channel.c.
References ast_channel_queryoption(), ast_copy_string(), AST_OPTION_DEVICE_NAME, and ast_channel::name.
Referenced by ast_cc_call_failed(), ast_cc_is_recall(), ast_queue_cc_frame(), cc_core_init_instance(), cccancel_exec(), ccreq_exec(), dial_exec_full(), sig_pri_call(), sig_pri_cc_available(), sig_pri_cc_generic_check(), sip_call(), and sip_handle_cc().
{
int len = name_buffer_length;
char *dash;
if (!ast_channel_queryoption(chan, AST_OPTION_DEVICE_NAME, device_name, &len, 0)) {
return 0;
}
/* Dang. Do it the old-fashioned way */
ast_copy_string(device_name, chan->name, name_buffer_length);
if ((dash = strrchr(device_name, '-'))) {
*dash = '\0';
}
return 0;
}
| static enum ast_t38_state ast_channel_get_t38_state | ( | struct ast_channel * | chan | ) | [inline, static] |
Retrieves the current T38 state of a channel.
Definition at line 2384 of file channel.h.
References ast_channel_queryoption(), AST_OPTION_T38_STATE, state, and T38_STATE_UNAVAILABLE.
Referenced by generic_fax_exec(), receivefax_exec(), receivefax_t38_init(), sendfax_exec(), sendfax_t38_init(), set_fax_t38_caps(), transmit(), transmit_audio(), and transmit_t38().
{
enum ast_t38_state state = T38_STATE_UNAVAILABLE;
int datalen = sizeof(state);
ast_channel_queryoption(chan, AST_OPTION_T38_STATE, &state, &datalen, 0);
return state;
}
| void ast_channel_inherit_variables | ( | const struct ast_channel * | parent, |
| struct ast_channel * | child | ||
| ) |
Inherits channel variable from parent to child channel.
- Parameters:
-
parent Parent channel child Child channel
Scans all channel variables in the parent channel, looking for those that should be copied into the child channel. Variables whose names begin with a single '_' are copied into the child channel with the prefix removed. Variables whose names begin with '__' are copied into the child channel with their names unchanged.
Definition at line 6078 of file channel.c.
References ast_debug, AST_LIST_INSERT_TAIL, AST_LIST_TRAVERSE, ast_var_assign(), ast_var_full_name(), ast_var_name(), ast_var_value(), ast_var_t::entries, and ast_channel::varshead.
Referenced by __ast_request_and_dial(), begin_dial_channel(), call_forward_inherit(), dial_exec_full(), dial_transfer(), do_forward(), feature_request_and_dial(), findmeexec(), ring_entry(), and wait_for_answer().
{
struct ast_var_t *current, *newvar;
const char *varname;
AST_LIST_TRAVERSE(&parent->varshead, current, entries) {
int vartype = 0;
varname = ast_var_full_name(current);
if (!varname)
continue;
if (varname[0] == '_') {
vartype = 1;
if (varname[1] == '_')
vartype = 2;
}
switch (vartype) {
case 1:
newvar = ast_var_assign(&varname[1], ast_var_value(current));
if (newvar) {
AST_LIST_INSERT_TAIL(&child->varshead, newvar, entries);
ast_debug(1, "Copying soft-transferable variable %s.\n", ast_var_name(newvar));
}
break;
case 2:
newvar = ast_var_assign(varname, ast_var_value(current));
if (newvar) {
AST_LIST_INSERT_TAIL(&child->varshead, newvar, entries);
ast_debug(1, "Copying hard-transferable variable %s.\n", ast_var_name(newvar));
}
break;
default:
ast_debug(1, "Not copying variable %s.\n", ast_var_name(current));
break;
}
}
}
| struct ast_channel_iterator* ast_channel_iterator_all_new | ( | void | ) | [read] |
Create a new channel iterator.
After creating an iterator using this function, the ast_channel_iterator_next() function can be used to iterate through all channels that exist.
- Return values:
-
NULL on failure a new channel iterator
- Since:
- 1.8
Definition at line 1662 of file channel.c.
References ast_channel_iterator::active_iterator, ao2_iterator_init(), ast_calloc, channels, and ast_channel_iterator::simple_iterator.
Referenced by action_coreshowchannels(), action_status(), ast_complete_channels(), ast_var_channel_bridge(), ast_var_channel_types_table(), ast_var_channels_table(), common_exec(), data_channels_provider_handler(), func_channels_read(), handle_chanlist(), and handle_softhangup().
{
struct ast_channel_iterator *i;
if (!(i = ast_calloc(1, sizeof(*i)))) {
return NULL;
}
i->simple_iterator = ao2_iterator_init(channels, 0);
i->active_iterator = &i->simple_iterator;
return i;
}
| struct ast_channel_iterator* ast_channel_iterator_by_exten_new | ( | const char * | exten, |
| const char * | context | ||
| ) | [read] |
Create a new channel iterator based on extension.
- exten The extension that channels must be in
- context The context that channels must be in (optional)
After creating an iterator using this function, the ast_channel_iterator_next() function can be used to iterate through all channels that are currently in the specified context and extension.
- Return values:
-
NULL on failure a new channel iterator based on the specified parameters
- Since:
- 1.8
Definition at line 1652 of file channel.c.
References channel_iterator_search().
Referenced by common_exec(), and pickup_by_exten().
{
return channel_iterator_search(NULL, 0, exten, context);
}
| struct ast_channel_iterator* ast_channel_iterator_by_name_new | ( | const char * | name, |
| size_t | name_len | ||
| ) | [read] |
Create a new channel iterator based on name.
- name channel name or channel uniqueid to match
- name_len number of characters in the channel name to match on. This would be used to match based on name prefix. If matching on the full channel name is desired, then this parameter should be 0.
After creating an iterator using this function, the ast_channel_iterator_next() function can be used to iterate through all channels that exist that have the specified name or name prefix.
- Return values:
-
NULL on failure a new channel iterator based on the specified parameters
- Since:
- 1.8
Definition at line 1657 of file channel.c.
References channel_iterator_search().
Referenced by ast_complete_channels(), common_exec(), and softhangup_exec().
{
return channel_iterator_search(name, name_len, NULL, NULL);
}
| struct ast_channel_iterator* ast_channel_iterator_destroy | ( | struct ast_channel_iterator * | i | ) | [read] |
Destroy a channel iterator.
- i the itereator to destroy
This function is used to destroy a channel iterator that was retrieved by using one of the channel_iterator_new() functions.
- Returns:
- NULL, for convenience to clear out the pointer to the iterator that was just destroyed.
- Since:
- 1.8
Definition at line 1610 of file channel.c.
References ast_channel_iterator::active_iterator, ao2_iterator_destroy(), and ast_free.
Referenced by action_coreshowchannels(), action_status(), ast_complete_channels(), ast_var_channel_bridge(), ast_var_channel_types_table(), ast_var_channels_table(), common_exec(), data_channels_provider_handler(), func_channels_read(), handle_chanlist(), handle_softhangup(), pickup_by_exten(), and softhangup_exec().
{
ao2_iterator_destroy(i->active_iterator);
ast_free(i);
return NULL;
}
| struct ast_channel* ast_channel_iterator_next | ( | struct ast_channel_iterator * | i | ) | [read] |
Get the next channel for a channel iterator.
- i the channel iterator that was created using one of the channel_iterator_new() functions.
This function should be used to iterate through all channels that match a specified set of parameters that were provided when the iterator was created.
- Return values:
-
the next channel that matches the parameters used when the iterator was created. NULL,if no more channels match the iterator parameters.
- Since:
- 1.8
Definition at line 1676 of file channel.c.
References ast_channel_iterator::active_iterator, and ao2_iterator_next.
Referenced by action_coreshowchannels(), action_status(), ast_complete_channels(), ast_var_channel_bridge(), ast_var_channel_types_table(), ast_var_channels_table(), data_channels_provider_handler(), func_channels_read(), handle_chanlist(), handle_softhangup(), next_channel(), pickup_by_exten(), and softhangup_exec().
{
return ao2_iterator_next(i->active_iterator);
}
| int ast_channel_make_compatible | ( | struct ast_channel * | c0, |
| struct ast_channel * | c1 | ||
| ) |
Makes two channel formats compatible.
- Parameters:
-
c0 first channel to make compatible c1 other channel to make compatible
Set two channels to compatible formats -- call before ast_channel_bridge in general.
- Returns:
- Returns 0 on success and -1 if it could not be done
Definition at line 5809 of file channel.c.
References ast_channel_make_compatible_helper().
Referenced by action_bridge(), app_exec(), ast_channel_bridge(), bridge_exec(), check_compat(), dial_exec_full(), do_forward(), multiplexed_bridge_join(), parked_call_exec(), simple_bridge_join(), try_calling(), and wait_for_answer().
{
/* Some callers do not check return code, and we must try to set all call legs correctly */
int rc = 0;
/* Set up translation from the chan to the peer */
rc = ast_channel_make_compatible_helper(chan, peer);
if (rc < 0)
return rc;
/* Set up translation from the peer to the chan */
rc = ast_channel_make_compatible_helper(peer, chan);
return rc;
}
| int ast_channel_masquerade | ( | struct ast_channel * | original, |
| struct ast_channel * | clone | ||
| ) |
Weird function made for call transfers.
- Parameters:
-
original channel to make a copy of clone copy of the original channel
This is a very strange and freaky function used primarily for transfer. Suppose that "original" and "clone" are two channels in random situations. This function takes the guts out of "clone" and puts them into the "original" channel, then alerts the channel driver of the change, asking it to fixup any private information (like the p->owner pointer) that is affected by the change. The physical layer of the original channel is hung up.
- Note:
- Neither channel passed here should be locked before calling this function. This function performs deadlock avoidance involving these two channels.
Definition at line 5949 of file channel.c.
References __ast_channel_masquerade().
Referenced by ast_async_goto(), ast_do_pickup(), attempt_transfer(), builtin_atxfer(), check_availability(), check_bridge(), check_goto_on_transfer(), do_bridge_masquerade(), handle_invite_replaces(), iax_park(), masq_park_call(), sip_park(), and skinny_transfer().
{
return __ast_channel_masquerade(original, clone, NULL);
}
| int ast_channel_queryoption | ( | struct ast_channel * | channel, |
| int | option, | ||
| void * | data, | ||
| int * | datalen, | ||
| int | block | ||
| ) |
Checks the value of an option.
Query the value of an option Works similarly to setoption except only reads the options.
Definition at line 7544 of file channel.c.
References ast_channel_lock, ast_channel_unlock, ast_log(), errno, LOG_ERROR, ast_channel_tech::queryoption, and ast_channel::tech.
Referenced by ast_channel_get_cc_agent_type(), ast_channel_get_device_name(), ast_channel_get_t38_state(), local_queryoption(), rcvfax_exec(), and sndfax_exec().
{
int res;
ast_channel_lock(chan);
if (!chan->tech->queryoption) {
errno = ENOSYS;
ast_channel_unlock(chan);
return -1;
}
if (block)
ast_log(LOG_ERROR, "XXX Blocking not implemented yet XXX\n");
res = chan->tech->queryoption(chan, option, data, datalen);
ast_channel_unlock(chan);
return res;
}
| void ast_channel_queue_connected_line_update | ( | struct ast_channel * | chan, |
| const struct ast_party_connected_line * | connected, | ||
| const struct ast_set_party_connected_line * | update | ||
| ) |
Queue a connected line update frame on a channel.
- Since:
- 1.8
- Parameters:
-
chan Asterisk channel to indicate connected line information connected Connected line information update What connected line information to update. NULL if all.
- Returns:
- Nothing
Definition at line 8792 of file channel.c.
References ast_connected_line_build_data(), AST_CONTROL_CONNECTED_LINE, and ast_queue_control_data().
Referenced by ast_do_pickup(), handle_request_invite(), handle_request_update(), handle_response_invite(), local_attended_transfer(), masquerade_colp_transfer(), misdn_queue_connected_line_update(), sig_pri_handle_subcmds(), and sip_call().
{
unsigned char data[1024]; /* This should be large enough */
size_t datalen;
datalen = ast_connected_line_build_data(data, sizeof(data), connected, update);
if (datalen == (size_t) -1) {
return;
}
ast_queue_control_data(chan, AST_CONTROL_CONNECTED_LINE, data, datalen);
}
| void ast_channel_queue_redirecting_update | ( | struct ast_channel * | chan, |
| const struct ast_party_redirecting * | redirecting, | ||
| const struct ast_set_party_redirecting * | update | ||
| ) |
Queue a redirecting update frame on a channel.
- Since:
- 1.8
- Parameters:
-
chan Asterisk channel to indicate redirecting id information redirecting Redirecting id information update What redirecting information to update. NULL if all.
- Returns:
- Nothing
Definition at line 9299 of file channel.c.
References AST_CONTROL_REDIRECTING, ast_queue_control_data(), and ast_redirecting_build_data().
Referenced by cb_events(), handle_response_invite(), misdn_facility_ie_handler(), and sig_pri_handle_subcmds().
{
unsigned char data[1024]; /* This should be large enough */
size_t datalen;
datalen = ast_redirecting_build_data(data, sizeof(data), redirecting, update);
if (datalen == (size_t) -1) {
return;
}
ast_queue_control_data(chan, AST_CONTROL_REDIRECTING, data, datalen);
}
| const char* ast_channel_reason2str | ( | int | reason | ) |
return an english explanation of the code returned thru __ast_request_and_dial's 'outstate' argument
- Parameters:
-
reason The integer argument, usually taken from AST_CONTROL_ macros
- Returns:
- char pointer explaining the code
Definition at line 5163 of file channel.c.
References AST_CONTROL_ANSWER, AST_CONTROL_BUSY, AST_CONTROL_CONGESTION, AST_CONTROL_HANGUP, AST_CONTROL_RING, and AST_CONTROL_RINGING.
Referenced by attempt_thread().
{
switch (reason) /* the following appear to be the only ones actually returned by request_and_dial */
{
case 0:
return "Call Failure (not BUSY, and not NO_ANSWER, maybe Circuit busy or down?)";
case AST_CONTROL_HANGUP:
return "Hangup";
case AST_CONTROL_RING:
return "Local Ring";
case AST_CONTROL_RINGING:
return "Remote end Ringing";
case AST_CONTROL_ANSWER:
return "Remote end has Answered";
case AST_CONTROL_BUSY:
return "Remote end is Busy";
case AST_CONTROL_CONGESTION:
return "Congestion (circuits busy)";
default:
return "Unknown Reason!!";
}
}
| int ast_channel_redirecting_macro | ( | struct ast_channel * | autoservice_chan, |
| struct ast_channel * | macro_chan, | ||
| const void * | redirecting_info, | ||
| int | is_caller, | ||
| int | is_frame | ||
| ) |
Run a redirecting interception macro and update a channel's redirecting information.
- Since:
- 1.8
Whenever we want to update a channel's redirecting information, we may need to run a macro so that an administrator can manipulate the information before sending it out. This function both runs the macro and sends the update to the channel.
- Parameters:
-
autoservice_chan Channel to place into autoservice while the macro is running. It is perfectly safe for this to be NULL macro_chan The channel to run the macro on. Also the channel from which we determine which macro we need to run. redirecting_info Either an ast_party_redirecting or ast_frame pointer of type AST_CONTROL_REDIRECTING is_caller If true, then run REDIRECTING_CALLER_SEND_MACRO, otherwise run REDIRECTING_CALLEE_SEND_MACRO is_frame If true, then redirecting_info is an ast_frame pointer, otherwise it is an ast_party_redirecting pointer.
- Return values:
-
0 Success -1 Either the macro does not exist, or there was an error while attempting to run the macro
- Todo:
Have multiple return codes based on the MACRO_RESULT
Make constants so that caller and frame can be more expressive than just '1' and '0'
Definition at line 9351 of file channel.c.
References ast_app_run_macro(), ast_channel_lock, ast_channel_unlock, ast_channel_update_redirecting(), ast_party_redirecting_copy(), ast_redirecting_parse_data(), ast_strdupa, ast_strlen_zero(), ast_frame::data, ast_frame::datalen, pbx_builtin_getvar_helper(), ast_frame::ptr, ast_channel::redirecting, and S_OR.
Referenced by ast_bridge_call(), ast_generic_bridge(), call_forward_inherit(), do_forward(), feature_request_and_dial(), handle_frame(), local_bridge_loop(), remote_bridge_loop(), and wait_for_answer().
{
const char *macro;
const char *macro_args;
int retval;
ast_channel_lock(macro_chan);
macro = pbx_builtin_getvar_helper(macro_chan, is_caller
? "REDIRECTING_CALLER_SEND_MACRO" : "REDIRECTING_CALLEE_SEND_MACRO");
macro = ast_strdupa(S_OR(macro, ""));
macro_args = pbx_builtin_getvar_helper(macro_chan, is_caller
? "REDIRECTING_CALLER_SEND_MACRO_ARGS" : "REDIRECTING_CALLEE_SEND_MACRO_ARGS");
macro_args = ast_strdupa(S_OR(macro_args, ""));
if (ast_strlen_zero(macro)) {
ast_channel_unlock(macro_chan);
return -1;
}
if (is_frame) {
const struct ast_frame *frame = redirecting_info;
ast_redirecting_parse_data(frame->data.ptr, frame->datalen, ¯o_chan->redirecting);
} else {
const struct ast_party_redirecting *redirecting = redirecting_info;
ast_party_redirecting_copy(¯o_chan->redirecting, redirecting);
}
ast_channel_unlock(macro_chan);
retval = ast_app_run_macro(autoservice_chan, macro_chan, macro, macro_args);
if (!retval) {
ast_channel_lock(macro_chan);
ast_channel_update_redirecting(macro_chan, ¯o_chan->redirecting, NULL);
ast_channel_unlock(macro_chan);
}
return retval;
}
| int ast_channel_register | ( | const struct ast_channel_tech * | tech | ) |
Register a channel technology (a new channel driver) Called by a channel module to register the kind of channels it supports.
- Parameters:
-
tech Structure defining channel technology or "type"
- Returns:
- Returns 0 on success, -1 on failure.
Definition at line 886 of file channel.c.
References ast_calloc, ast_debug, ast_log(), AST_RWLIST_INSERT_HEAD, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, ast_verb, chanlist::chan, ast_channel_tech::description, LOG_WARNING, chanlist::tech, and ast_channel_tech::type.
Referenced by load_module(), and unload_module().
{
struct chanlist *chan;
AST_RWLIST_WRLOCK(&backends);
AST_RWLIST_TRAVERSE(&backends, chan, list) {
if (!strcasecmp(tech->type, chan->tech->type)) {
ast_log(LOG_WARNING, "Already have a handler for type '%s'\n", tech->type);
AST_RWLIST_UNLOCK(&backends);
return -1;
}
}
if (!(chan = ast_calloc(1, sizeof(*chan)))) {
AST_RWLIST_UNLOCK(&backends);
return -1;
}
chan->tech = tech;
AST_RWLIST_INSERT_HEAD(&backends, chan, list);
ast_debug(1, "Registered handler for '%s' (%s)\n", chan->tech->type, chan->tech->description);
ast_verb(2, "Registered channel type '%s' (%s)\n", chan->tech->type, chan->tech->description);
AST_RWLIST_UNLOCK(&backends);
return 0;
}
| struct ast_channel* ast_channel_release | ( | struct ast_channel * | chan | ) | [read] |
Unlink and release reference to a channel.
This function will unlink the channel from the global channels container if it is still there and also release the current reference to the channel.
- Returns:
- NULL, convenient for clearing invalid pointers
- Note:
- Absolutely _NO_ channel locks should be held before calling this function.
- Since:
- 1.8
Definition at line 1878 of file channel.c.
References ao2_unlink, ast_channel_unref, and channels.
Referenced by agent_cleanup(), ast_do_masquerade(), ast_iax2_new(), ast_request(), bridge_request(), do_notify(), gtalk_newcall(), local_new(), and local_request().
{
/* Safe, even if already unlinked. */
ao2_unlink(channels, chan);
return ast_channel_unref(chan);
}
| int ast_channel_sendhtml | ( | struct ast_channel * | channel, |
| int | subclass, | ||
| const char * | data, | ||
| int | datalen | ||
| ) |
Sends HTML on given channel Send HTML or URL on link.
- Returns:
- 0 on success or -1 on failure
Definition at line 5746 of file channel.c.
References ast_channel_tech::send_html, and ast_channel::tech.
Referenced by agent_sendhtml(), ast_channel_sendurl(), and wait_for_answer().
| int ast_channel_sendurl | ( | struct ast_channel * | channel, |
| const char * | url | ||
| ) |
Sends a URL on a given link Send URL on link.
- Returns:
- 0 on success or -1 on failure
Definition at line 5753 of file channel.c.
References ast_channel_sendhtml(), and AST_HTML_URL.
Referenced by dial_exec_full(), sendurl_exec(), and try_calling().
{
return ast_channel_sendhtml(chan, AST_HTML_URL, url, strlen(url) + 1);
}
| void ast_channel_set_caller | ( | struct ast_channel * | chan, |
| const struct ast_party_caller * | caller, | ||
| const struct ast_set_party_caller * | update | ||
| ) |
Set the caller id information in the Asterisk channel.
- Since:
- 1.8
- Parameters:
-
chan Asterisk channel to set caller id information caller Caller id information update What caller information to update. NULL if all.
- Returns:
- Nothing
- Note:
- The channel does not need to be locked before calling this function.
Definition at line 6829 of file channel.c.
References ast_channel_lock, ast_channel_unlock, ast_party_caller_set(), and ast_channel::caller.
{
if (&chan->caller == caller) {
/* Don't set to self */
return;
}
ast_channel_lock(chan);
ast_party_caller_set(&chan->caller, caller, update);
ast_channel_unlock(chan);
}
| void ast_channel_set_caller_event | ( | struct ast_channel * | chan, |
| const struct ast_party_caller * | caller, | ||
| const struct ast_set_party_caller * | update | ||
| ) |
Set the caller id information in the Asterisk channel and generate an AMI event if the caller id name or number changed.
- Since:
- 1.8
- Parameters:
-
chan Asterisk channel to set caller id information caller Caller id information update What caller information to update. NULL if all.
- Returns:
- Nothing
- Note:
- The channel does not need to be locked before calling this function.
Definition at line 6841 of file channel.c.
References ast_cdr_setcid(), ast_channel_lock, ast_channel_unlock, ast_party_caller_set(), ast_channel::caller, ast_channel::cdr, ast_party_caller::id, ast_party_id::name, ast_party_id::number, report_new_callerid(), S_COR, ast_party_name::str, ast_party_number::str, ast_party_name::valid, and ast_party_number::valid.
Referenced by callerid_write(), dial_exec_full(), do_forward(), misdn_update_caller_id(), ring_entry(), and sig_pri_handle_subcmds().
{
const char *pre_set_number;
const char *pre_set_name;
if (&chan->caller == caller) {
/* Don't set to self */
return;
}
ast_channel_lock(chan);
pre_set_number =
S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, NULL);
pre_set_name = S_COR(chan->caller.id.name.valid, chan->caller.id.name.str, NULL);
ast_party_caller_set(&chan->caller, caller, update);
if (S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, NULL)
!= pre_set_number
|| S_COR(chan->caller.id.name.valid, chan->caller.id.name.str, NULL)
!= pre_set_name) {
/* The caller id name or number changed. */
report_new_callerid(chan);
}
if (chan->cdr) {
ast_cdr_setcid(chan->cdr, chan);
}
ast_channel_unlock(chan);
}
| void ast_channel_set_connected_line | ( | struct ast_channel * | chan, |
| const struct ast_party_connected_line * | connected, | ||
| const struct ast_set_party_connected_line * | update | ||
| ) |
Set the connected line information in the Asterisk channel.
- Since:
- 1.8
- Parameters:
-
chan Asterisk channel to set connected line information connected Connected line information update What connected line information to update. NULL if all.
- Returns:
- Nothing
- Note:
- The channel does not need to be locked before calling this function.
Definition at line 8152 of file channel.c.
References ast_channel_lock, ast_channel_unlock, ast_party_connected_line_set(), and ast_channel::connected.
Referenced by __ast_request_and_dial(), ast_indicate_data(), connectedline_write(), dial_exec_full(), and feature_request_and_dial().
{
if (&chan->connected == connected) {
/* Don't set to self */
return;
}
ast_channel_lock(chan);
ast_party_connected_line_set(&chan->connected, connected, update);
ast_channel_unlock(chan);
}
| void ast_channel_set_fd | ( | struct ast_channel * | chan, |
| int | which, | ||
| int | fd | ||
| ) |
Set the file descriptor on the channel
Definition at line 2576 of file channel.c.
References ast_calloc, ast_epoll_data::chan, chanlist::chan, ast_channel::fds, free, and ast_epoll_data::which.
Referenced by __ast_channel_alloc_ap(), __oh323_new(), __oh323_rtp_create(), __oh323_update_info(), alsa_new(), ast_deactivate_generator(), ast_do_masquerade(), dahdi_new(), gtalk_new(), jingle_new(), mgcp_new(), misdn_new(), my_swap_subchannels(), nbs_new(), oss_new(), phone_new(), process_sdp(), setformat(), sip_new(), skinny_new(), start_rtp(), and swap_subs().
{
#ifdef HAVE_EPOLL
struct epoll_event ev;
struct ast_epoll_data *aed = NULL;
if (chan->fds[which] > -1) {
epoll_ctl(chan->epfd, EPOLL_CTL_DEL, chan->fds[which], &ev);
aed = chan->epfd_data[which];
}
/* If this new fd is valid, add it to the epoll */
if (fd > -1) {
if (!aed && (!(aed = ast_calloc(1, sizeof(*aed)))))
return;
chan->epfd_data[which] = aed;
aed->chan = chan;
aed->which = which;
ev.events = EPOLLIN | EPOLLPRI | EPOLLERR | EPOLLHUP;
ev.data.ptr = aed;
epoll_ctl(chan->epfd, EPOLL_CTL_ADD, fd, &ev);
} else if (aed) {
/* We don't have to keep around this epoll data structure now */
free(aed);
chan->epfd_data[which] = NULL;
}
#endif
chan->fds[which] = fd;
return;
}
| void ast_channel_set_linkgroup | ( | struct ast_channel * | chan, |
| struct ast_channel * | peer | ||
| ) |
propagate the linked id between chan and peer
Definition at line 6222 of file channel.c.
References ast_channel::_bridge, ast_bridged_channel(), ast_channel_change_linkedid(), ast_strdupa, ast_channel::linkedid, oldest_linkedid(), and ast_channel::uniqueid.
Referenced by ast_bridge_call(), and ast_do_masquerade().
{
const char* linkedid=NULL;
struct ast_channel *bridged;
linkedid = oldest_linkedid(chan->linkedid, peer->linkedid);
linkedid = oldest_linkedid(linkedid, chan->uniqueid);
linkedid = oldest_linkedid(linkedid, peer->uniqueid);
if (chan->_bridge) {
bridged = ast_bridged_channel(chan);
if (bridged != peer) {
linkedid = oldest_linkedid(linkedid, bridged->linkedid);
linkedid = oldest_linkedid(linkedid, bridged->uniqueid);
}
}
if (peer->_bridge) {
bridged = ast_bridged_channel(peer);
if (bridged != chan) {
linkedid = oldest_linkedid(linkedid, bridged->linkedid);
linkedid = oldest_linkedid(linkedid, bridged->uniqueid);
}
}
/* just in case setting a stringfield to itself causes problems */
linkedid = ast_strdupa(linkedid);
ast_channel_change_linkedid(chan, linkedid);
ast_channel_change_linkedid(peer, linkedid);
if (chan->_bridge) {
bridged = ast_bridged_channel(chan);
if (bridged != peer) {
ast_channel_change_linkedid(bridged, linkedid);
}
}
if (peer->_bridge) {
bridged = ast_bridged_channel(peer);
if (bridged != chan) {
ast_channel_change_linkedid(bridged, linkedid);
}
}
}
| void ast_channel_set_redirecting | ( | struct ast_channel * | chan, |
| const struct ast_party_redirecting * | redirecting, | ||
| const struct ast_set_party_redirecting * | update | ||
| ) |
Set the redirecting id information in the Asterisk channel.
- Since:
- 1.8
- Parameters:
-
chan Asterisk channel to set redirecting id information redirecting Redirecting id information update What redirecting information to update. NULL if all.
- Returns:
- Nothing
- Note:
- The channel does not need to be locked before calling this function.
Definition at line 8805 of file channel.c.
References ast_channel_lock, ast_channel_unlock, ast_party_redirecting_set(), and ast_channel::redirecting.
Referenced by ast_indicate_data(), do_forward(), handle_request_invite(), handle_response(), misdn_copy_redirecting_to_ast(), redirecting_write(), sig_pri_handle_subcmds(), and wait_for_answer().
{
if (&chan->redirecting == redirecting) {
/* Don't set to self */
return;
}
ast_channel_lock(chan);
ast_party_redirecting_set(&chan->redirecting, redirecting, update);
ast_channel_unlock(chan);
}
| int ast_channel_setoption | ( | struct ast_channel * | channel, |
| int | option, | ||
| void * | data, | ||
| int | datalen, | ||
| int | block | ||
| ) |
Sets an option on a channel.
- Parameters:
-
channel channel to set options on option option to change data data specific to option datalen length of the data block blocking or not
Set an option on a channel (see frame.h), optionally blocking awaiting the reply
- Returns:
- 0 on success and -1 on failure
Definition at line 7524 of file channel.c.
References ast_channel_lock, ast_channel_unlock, ast_log(), errno, LOG_ERROR, ast_channel_tech::setoption, and ast_channel::tech.
Referenced by analog_hangup(), ast_bridge_call(), ast_channel_make_compatible_helper(), common_exec(), conf_run(), dahdi_hangup(), dial_exec_full(), func_channel_write(), func_channel_write_real(), handle_tddmode(), play_record_review(), rcvfax_exec(), reset_volumes(), rpt(), rpt_exec(), set_format(), set_listen_volume(), set_security_requirements(), set_talk_volume(), sndfax_exec(), try_calling(), and vm_forwardoptions().
{
int res;
ast_channel_lock(chan);
if (!chan->tech->setoption) {
errno = ENOSYS;
ast_channel_unlock(chan);
return -1;
}
if (block)
ast_log(LOG_ERROR, "XXX Blocking not implemented yet XXX\n");
res = chan->tech->setoption(chan, option, data, datalen);
ast_channel_unlock(chan);
return res;
}
| void ast_channel_setwhentohangup | ( | struct ast_channel * | chan, |
| time_t | offset | ||
| ) |
Set when to hang a channel up.
- Parameters:
-
chan channel on which to check for hang up offset offset in seconds relative to the current time of when to hang up
This function sets the absolute time out on a channel (when to hang up).
- Note:
- This function does not require that the channel is locked before calling it.
- Returns:
- Nothing
- See also:
- ast_channel_setwhentohangup_tv()
- Version:
- 1.6.1 deprecated function (only had seconds precision)
Definition at line 857 of file channel.c.
References ast_channel_setwhentohangup_tv().
{
struct timeval when = { offset, };
ast_channel_setwhentohangup_tv(chan, when);
}
| void ast_channel_setwhentohangup_tv | ( | struct ast_channel * | chan, |
| struct timeval | offset | ||
| ) |
Set when to hang a channel up.
- Parameters:
-
chan channel on which to check for hang up offset offset in seconds and useconds relative to the current time of when to hang up
This function sets the absolute time out on a channel (when to hang up).
- Note:
- This function does not require that the channel is locked before calling it.
- Returns:
- Nothing
- Since:
- 1.6.1
Definition at line 850 of file channel.c.
References ast_null_frame, ast_queue_frame(), ast_tvadd(), ast_tvnow(), ast_tvzero(), and ast_channel::whentohangup.
Referenced by action_timeout(), ast_channel_setwhentohangup(), handle_autohangup(), sig_pri_send_aoce_termination_request(), and timeout_write().
{
chan->whentohangup = ast_tvzero(offset) ? offset : ast_tvadd(offset, ast_tvnow());
ast_queue_frame(chan, &ast_null_frame);
return;
}
| struct ast_silence_generator* ast_channel_start_silence_generator | ( | struct ast_channel * | chan | ) | [read] |
Starts a silence generator on the given channel.
- Parameters:
-
chan The channel to generate silence on
- Returns:
- An ast_silence_generator pointer, or NULL if an error occurs
This function will cause SLINEAR silence to be generated on the supplied channel until it is disabled; if the channel cannot be put into SLINEAR mode then the function will fail.
- Note:
- The pointer returned by this function must be preserved and passed to ast_channel_stop_silence_generator when you wish to stop the silence generation.
Definition at line 8026 of file channel.c.
References ast_activate_generator(), ast_calloc, ast_debug, AST_FORMAT_SLINEAR, ast_free, ast_log(), ast_set_write_format(), LOG_ERROR, ast_channel::name, ast_silence_generator::old_write_format, state, and ast_channel::writeformat.
Referenced by __ast_play_and_record(), ast_bridge_call(), ast_dtmf_stream(), ast_readstring_full(), ast_safe_sleep_conditional(), channel_spy(), record_exec(), TransferCallStep1(), waitfor_exec(), and waitforring_exec().
{
struct ast_silence_generator *state;
if (!(state = ast_calloc(1, sizeof(*state)))) {
return NULL;
}
state->old_write_format = chan->writeformat;
if (ast_set_write_format(chan, AST_FORMAT_SLINEAR) < 0) {
ast_log(LOG_ERROR, "Could not set write format to SLINEAR\n");
ast_free(state);
return NULL;
}
ast_activate_generator(chan, &silence_generator, state);
ast_debug(1, "Started silence generator on '%s'\n", chan->name);
return state;
}
| void ast_channel_stop_silence_generator | ( | struct ast_channel * | chan, |
| struct ast_silence_generator * | state | ||
| ) |
Stops a previously-started silence generator on the given channel.
- Parameters:
-
chan The channel to operate on state The ast_silence_generator pointer return by a previous call to ast_channel_start_silence_generator.
- Returns:
- nothing
This function will stop the operating silence generator and return the channel to its previous write format.
Definition at line 8049 of file channel.c.
References ast_deactivate_generator(), ast_debug, ast_free, ast_log(), ast_set_write_format(), LOG_ERROR, ast_channel::name, and ast_silence_generator::old_write_format.
Referenced by __ast_play_and_record(), ast_bridge_call(), ast_dtmf_stream(), ast_readstring_full(), ast_safe_sleep_conditional(), channel_spy(), HandleCallOutgoing(), key_dial_page(), record_exec(), unistim_hangup(), waitfor_exec(), and waitforring_exec().
{
if (!state)
return;
ast_deactivate_generator(chan);
ast_debug(1, "Stopped silence generator on '%s'\n", chan->name);
if (ast_set_write_format(chan, state->old_write_format) < 0)
ast_log(LOG_ERROR, "Could not return write format to its original state\n");
ast_free(state);
}
| int ast_channel_supports_html | ( | struct ast_channel * | channel | ) |
Checks for HTML support on a channel.
- Returns:
- 0 if channel does not support HTML or non-zero if it does
Definition at line 5741 of file channel.c.
References ast_channel_tech::send_html, and ast_channel::tech.
Referenced by dial_exec_full(), sendurl_exec(), and try_calling().
{
return (chan->tech->send_html) ? 1 : 0;
}
| int ast_channel_transfer_masquerade | ( | struct ast_channel * | target_chan, |
| const struct ast_party_connected_line * | target_id, | ||
| int | target_held, | ||
| struct ast_channel * | transferee_chan, | ||
| const struct ast_party_connected_line * | transferee_id, | ||
| int | transferee_held | ||
| ) |
Setup a masquerade to transfer a call.
- Since:
- 1.8
- Parameters:
-
target_chan Target of the call transfer. (Masquerade original channel) target_id New connected line information for the target channel. target_held TRUE if the target call is on hold. transferee_chan Transferee of the call transfer. (Masquerade clone channel) transferee_id New connected line information for the transferee channel. transferee_held TRUE if the transferee call is on hold.
Party A - Transferee Party B - Transferer Party C - Target of transfer
Party B transfers A to C.
Party A is connected to bridged channel B1. Party B is connected to channels C1 and C2. Party C is connected to bridged channel B2.
Party B -- C1 == B1 -- Party A __/ / Party B -- C2 == B2 -- Party C
Bridged channel B1 is masqueraded into channel C2. Where B1 is the masquerade clone channel and C2 is the masquerade original channel.
- See also:
- ast_channel_masquerade()
- Note:
- Has the same locking requirements as ast_channel_masquerade().
- Return values:
-
0 on success. -1 on error.
Definition at line 6023 of file channel.c.
References __ast_channel_masquerade(), ast_calloc, ast_datastore_alloc(), ast_datastore_free(), ast_datastore::data, party_connected_line_copy_transfer(), xfer_masquerade_ds::target_held, xfer_masquerade_ds::target_id, xfer_masquerade_ds::transferee_held, and xfer_masquerade_ds::transferee_id.
Referenced by analog_attempt_transfer(), misdn_attempt_transfer(), and sig_pri_attempt_transfer().
{
struct ast_datastore *xfer_ds;
struct xfer_masquerade_ds *xfer_colp;
int res;
xfer_ds = ast_datastore_alloc(&xfer_ds_info, NULL);
if (!xfer_ds) {
return -1;
}
xfer_colp = ast_calloc(1, sizeof(*xfer_colp));
if (!xfer_colp) {
ast_datastore_free(xfer_ds);
return -1;
}
party_connected_line_copy_transfer(&xfer_colp->target_id, target_id);
xfer_colp->target_held = target_held;
party_connected_line_copy_transfer(&xfer_colp->transferee_id, transferee_id);
xfer_colp->transferee_held = transferee_held;
xfer_ds->data = xfer_colp;
res = __ast_channel_masquerade(target_chan, transferee_chan, xfer_ds);
if (res) {
ast_datastore_free(xfer_ds);
}
return res;
}
| void ast_channel_undefer_dtmf | ( | struct ast_channel * | chan | ) |
Unset defer DTMF flag on channel.
Undo defer. ast_read will return any DTMF characters that were queued
Definition at line 1589 of file channel.c.
References ast_clear_flag, and AST_FLAG_DEFER_DTMF.
Referenced by __adsi_transmit_messages(), find_cache(), and rpt_call().
{
if (chan)
ast_clear_flag(chan, AST_FLAG_DEFER_DTMF);
}
| void ast_channel_unregister | ( | const struct ast_channel_tech * | tech | ) |
Unregister a channel technology.
- Parameters:
-
tech Structure defining channel technology or "type" that was previously registered
- Returns:
- No return value.
Definition at line 917 of file channel.c.
References ast_debug, ast_free, AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE_SAFE_END, AST_RWLIST_TRAVERSE_SAFE_BEGIN, AST_RWLIST_UNLOCK, AST_RWLIST_WRLOCK, ast_verb, chanlist::chan, chanlist::tech, and ast_channel_tech::type.
Referenced by __unload_module(), load_module(), and unload_module().
{
struct chanlist *chan;
ast_debug(1, "Unregistering channel type '%s'\n", tech->type);
AST_RWLIST_WRLOCK(&backends);
AST_RWLIST_TRAVERSE_SAFE_BEGIN(&backends, chan, list) {
if (chan->tech == tech) {
AST_LIST_REMOVE_CURRENT(list);
ast_free(chan);
ast_verb(2, "Unregistered channel type '%s'\n", tech->type);
break;
}
}
AST_LIST_TRAVERSE_SAFE_END;
AST_RWLIST_UNLOCK(&backends);
}
| void ast_channel_update_connected_line | ( | struct ast_channel * | chan, |
| const struct ast_party_connected_line * | connected, | ||
| const struct ast_set_party_connected_line * | update | ||
| ) |
Indicate that the connected line information has changed.
- Since:
- 1.8
- Parameters:
-
chan Asterisk channel to indicate connected line information connected Connected line information update What connected line information to update. NULL if all.
- Returns:
- Nothing
Definition at line 8779 of file channel.c.
References ast_connected_line_build_data(), AST_CONTROL_CONNECTED_LINE, and ast_indicate_data().
Referenced by ast_channel_connected_line_macro(), ast_do_pickup(), atxfer_fail_cleanup(), builtin_atxfer(), connectedline_write(), parked_call_exec(), and wait_for_answer().
{
unsigned char data[1024]; /* This should be large enough */
size_t datalen;
datalen = ast_connected_line_build_data(data, sizeof(data), connected, update);
if (datalen == (size_t) -1) {
return;
}
ast_indicate_data(chan, AST_CONTROL_CONNECTED_LINE, data, datalen);
}
| void ast_channel_update_redirecting | ( | struct ast_channel * | chan, |
| const struct ast_party_redirecting * | redirecting, | ||
| const struct ast_set_party_redirecting * | update | ||
| ) |
Indicate that the redirecting id has changed.
- Since:
- 1.8
- Parameters:
-
chan Asterisk channel to indicate redirecting id information redirecting Redirecting id information update What redirecting information to update. NULL if all.
- Returns:
- Nothing
Definition at line 9286 of file channel.c.
References AST_CONTROL_REDIRECTING, ast_indicate_data(), and ast_redirecting_build_data().
Referenced by ast_channel_redirecting_macro(), call_forward_inherit(), do_forward(), redirecting_write(), and wait_for_answer().
{
unsigned char data[1024]; /* This should be large enough */
size_t datalen;
datalen = ast_redirecting_build_data(data, sizeof(data), redirecting, update);
if (datalen == (size_t) -1) {
return;
}
ast_indicate_data(chan, AST_CONTROL_REDIRECTING, data, datalen);
}
| struct ast_variable* ast_channeltype_list | ( | void | ) | [read] |
return an ast_variable list of channeltypes
Definition at line 247 of file channel.c.
References AST_RWLIST_RDLOCK, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, ast_variable_new(), ast_channel_tech::description, chanlist::tech, ast_channel_tech::type, and var.
Referenced by ast_var_channel_types(), and ast_var_channel_types_table().
{
struct chanlist *cl;
struct ast_variable *var = NULL, *prev = NULL;
AST_RWLIST_RDLOCK(&backends);
AST_RWLIST_TRAVERSE(&backends, cl, list) {
if (prev) {
if ((prev->next = ast_variable_new(cl->tech->type, cl->tech->description, "")))
prev = prev->next;
} else {
var = ast_variable_new(cl->tech->type, cl->tech->description, "");
prev = var;
}
}
AST_RWLIST_UNLOCK(&backends);
return var;
}
| int ast_check_hangup | ( | struct ast_channel * | chan | ) |
Check to see if a channel is needing hang up.
- Parameters:
-
chan channel on which to check for hang up This function determines if the channel is being requested to be hung up.
- Returns:
- Returns 0 if not, or 1 if hang up is requested (including time-out).
Definition at line 791 of file channel.c.
References ast_channel::_softhangup, ast_debug, AST_SOFTHANGUP_TIMEOUT, ast_tvdiff_ms(), ast_tvnow(), ast_tvzero(), and ast_channel::whentohangup.
Referenced by __ast_pbx_run(), __ast_read(), _macro_exec(), agent_indicate(), agi_exec(), agi_handle_command(), announce_thread(), ast_bridge_call(), ast_call(), ast_channel_bridge(), ast_check_hangup_locked(), ast_indicate_data(), ast_raw_answer(), ast_readstring_full(), ast_recvtext(), ast_rtp_instance_bridge(), ast_sendtext(), ast_transfer(), ast_udptl_bridge(), ast_waitfordigit_full(), ast_write(), autoservice_run(), bridge_call_thread(), bridge_exec(), builtin_atxfer(), call_forward_inherit(), channel_spy(), check_bridge(), common_exec(), conf_play(), conf_run(), dahdi_accept_r2_call_exec(), dahdi_sendtext(), dahdi_setoption(), dial_exec_full(), dundi_lookup_internal(), eagi_exec(), eivr_comm(), feature_request_and_dial(), findmeexec(), func_channel_read(), handle_sendimage(), iax2_bridge(), launch_asyncagi(), local_bridge_loop(), local_fixup(), lua_check_hangup(), ospfinished_exec(), pbx_builtin_incomplete(), pbx_builtin_waitexten(), pbx_exec(), read_exec(), readexten_exec(), remote_bridge_loop(), rpt(), rpt_exec(), run_agi(), run_ras(), try_calling(), and wait_for_answer().
{
if (chan->_softhangup) /* yes if soft hangup flag set */
return 1;
if (ast_tvzero(chan->whentohangup)) /* no if no hangup scheduled */
return 0;
if (ast_tvdiff_ms(chan->whentohangup, ast_tvnow()) > 0) /* no if hangup time has not come yet. */
return 0;
ast_debug(4, "Hangup time has come: %" PRIi64 "\n", ast_tvdiff_ms(chan->whentohangup, ast_tvnow()));
chan->_softhangup |= AST_SOFTHANGUP_TIMEOUT; /* record event */
return 1;
}
| int ast_check_hangup_locked | ( | struct ast_channel * | chan | ) |
Definition at line 804 of file channel.c.
References ast_channel_lock, ast_channel_unlock, and ast_check_hangup().
Referenced by action_redirect(), and ast_channel_bridge().
{
int res;
ast_channel_lock(chan);
res = ast_check_hangup(chan);
ast_channel_unlock(chan);
return res;
}
| int ast_connected_line_build_data | ( | unsigned char * | data, |
| size_t | datalen, | ||
| const struct ast_party_connected_line * | connected, | ||
| const struct ast_set_party_connected_line * | update | ||
| ) |
Build the connected line information data frame.
- Since:
- 1.8
- Parameters:
-
data Buffer to fill with the frame data datalen Size of the buffer to fill connected Connected line information update What connected line information to build. NULL if all.
- Return values:
-
-1 if error Amount of data buffer used
Definition at line 8519 of file channel.c.
References AST_CONNECTED_LINE_ID_PRESENTATION, AST_CONNECTED_LINE_NAME, AST_CONNECTED_LINE_NAME_CHAR_SET, AST_CONNECTED_LINE_NAME_PRESENTATION, AST_CONNECTED_LINE_NAME_VALID, AST_CONNECTED_LINE_NUMBER, AST_CONNECTED_LINE_NUMBER_PLAN, AST_CONNECTED_LINE_NUMBER_PRESENTATION, AST_CONNECTED_LINE_NUMBER_VALID, AST_CONNECTED_LINE_SOURCE, AST_CONNECTED_LINE_SUBADDRESS, AST_CONNECTED_LINE_SUBADDRESS_ODD_EVEN, AST_CONNECTED_LINE_SUBADDRESS_TYPE, AST_CONNECTED_LINE_SUBADDRESS_VALID, AST_CONNECTED_LINE_TAG, AST_CONNECTED_LINE_VERSION, ast_log(), ast_party_connected_line::id, ast_set_party_connected_line::id, LOG_WARNING, ast_party_id_ies::name, party_id_build_data(), ast_party_connected_line::source, ast_party_name_ies::str, and value.
Referenced by ast_channel_queue_connected_line_update(), ast_channel_update_connected_line(), local_attended_transfer(), local_indicate(), and masquerade_colp_transfer().
{
int32_t value;
size_t pos = 0;
int res;
static const struct ast_party_id_ies ies = {
.name.str = AST_CONNECTED_LINE_NAME,
.name.char_set = AST_CONNECTED_LINE_NAME_CHAR_SET,
.name.presentation = AST_CONNECTED_LINE_NAME_PRESENTATION,
.name.valid = AST_CONNECTED_LINE_NAME_VALID,
.number.str = AST_CONNECTED_LINE_NUMBER,
.number.plan = AST_CONNECTED_LINE_NUMBER_PLAN,
.number.presentation = AST_CONNECTED_LINE_NUMBER_PRESENTATION,
.number.valid = AST_CONNECTED_LINE_NUMBER_VALID,
.subaddress.str = AST_CONNECTED_LINE_SUBADDRESS,
.subaddress.type = AST_CONNECTED_LINE_SUBADDRESS_TYPE,
.subaddress.odd_even_indicator = AST_CONNECTED_LINE_SUBADDRESS_ODD_EVEN,
.subaddress.valid = AST_CONNECTED_LINE_SUBADDRESS_VALID,
.tag = AST_CONNECTED_LINE_TAG,
.combined_presentation = AST_CONNECTED_LINE_ID_PRESENTATION,
};
/*
* The size of integer values must be fixed in case the frame is
* shipped to another machine.
*/
/* Connected line frame version */
if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
ast_log(LOG_WARNING, "No space left for connected line frame version\n");
return -1;
}
data[pos++] = AST_CONNECTED_LINE_VERSION;
data[pos++] = 1;
data[pos++] = 2;/* Version 1 did not have a version ie */
res = party_id_build_data(data + pos, datalen - pos, &connected->id,
"connected line", &ies, update ? &update->id : NULL);
if (res < 0) {
return -1;
}
pos += res;
/* Connected line source */
if (datalen < pos + (sizeof(data[0]) * 2) + sizeof(value)) {
ast_log(LOG_WARNING, "No space left for connected line source\n");
return -1;
}
data[pos++] = AST_CONNECTED_LINE_SOURCE;
data[pos++] = sizeof(value);
value = htonl(connected->source);
memcpy(data + pos, &value, sizeof(value));
pos += sizeof(value);
return pos;
}
| void ast_connected_line_copy_from_caller | ( | struct ast_party_connected_line * | dest, |
| const struct ast_party_caller * | src | ||
| ) |
Copy the caller information to the connected line information.
- Since:
- 1.8
- Parameters:
-
dest Destination connected line information src Source caller information
- Returns:
- Nothing
- Note:
- Assumes locks are already acquired
Definition at line 8137 of file channel.c.
References ast_party_caller::ani, ast_party_connected_line::ani, ast_party_caller::ani2, ast_party_connected_line::ani2, ast_party_id_copy(), ast_party_caller::id, and ast_party_connected_line::id.
Referenced by ast_do_pickup(), begin_dial_channel(), builtin_atxfer(), dial_exec_full(), dial_transfer(), do_forward(), feature_request_and_dial(), findmeexec(), local_call(), parked_call_exec(), ring_entry(), and wait_for_answer().
{
ast_party_id_copy(&dest->id, &src->id);
ast_party_id_copy(&dest->ani, &src->ani);
dest->ani2 = src->ani2;
}
| void ast_connected_line_copy_to_caller | ( | struct ast_party_caller * | dest, |
| const struct ast_party_connected_line * | src | ||
| ) |
Copy the connected line information to the caller information.
- Since:
- 1.8
- Parameters:
-
dest Destination caller information src Source connected line information
- Returns:
- Nothing
- Note:
- Assumes locks are already acquired
Definition at line 8144 of file channel.c.
References ast_party_caller::ani, ast_party_connected_line::ani, ast_party_caller::ani2, ast_party_connected_line::ani2, ast_party_id_copy(), ast_party_caller::id, and ast_party_connected_line::id.
Referenced by local_call(), and local_indicate().
{
ast_party_id_copy(&dest->id, &src->id);
ast_party_id_copy(&dest->ani, &src->ani);
dest->ani2 = src->ani2;
}
| int ast_connected_line_parse_data | ( | const unsigned char * | data, |
| size_t | datalen, | ||
| struct ast_party_connected_line * | connected | ||
| ) |
Parse connected line indication frame data.
- Since:
- 1.8
- Parameters:
-
data Buffer with the frame data to parse datalen Size of the buffer connected Extracted connected line information
- Return values:
-
0 on success. -1 on error.
- Note:
- The filled in connected line structure needs to be initialized by ast_party_connected_line_set_init() before calling. If defaults are not required use ast_party_connected_line_init().
- The filled in connected line structure needs to be destroyed by ast_party_connected_line_free() when it is no longer needed.
Definition at line 8580 of file channel.c.
References AST_CONNECTED_LINE_ID_PRESENTATION, AST_CONNECTED_LINE_NAME, AST_CONNECTED_LINE_NAME_CHAR_SET, AST_CONNECTED_LINE_NAME_PRESENTATION, AST_CONNECTED_LINE_NAME_VALID, AST_CONNECTED_LINE_NUMBER, AST_CONNECTED_LINE_NUMBER_PLAN, AST_CONNECTED_LINE_NUMBER_PRESENTATION, AST_CONNECTED_LINE_NUMBER_VALID, AST_CONNECTED_LINE_SOURCE, AST_CONNECTED_LINE_SUBADDRESS, AST_CONNECTED_LINE_SUBADDRESS_ODD_EVEN, AST_CONNECTED_LINE_SUBADDRESS_TYPE, AST_CONNECTED_LINE_SUBADDRESS_VALID, AST_CONNECTED_LINE_TAG, AST_CONNECTED_LINE_VERSION, ast_free, ast_log(), ast_malloc, AST_PARTY_CHAR_SET_ISO8859_1, ast_party_name::char_set, ast_party_id_ies::combined_presentation, ast_party_connected_line::id, LOG_DEBUG, LOG_WARNING, ast_party_id::name, ast_party_id::number, ast_party_subaddress::odd_even_indicator, ast_party_number::plan, ast_party_name::presentation, ast_party_number::presentation, ast_party_connected_line::source, ast_party_name::str, ast_party_number::str, ast_party_subaddress::str, ast_party_id::subaddress, ast_party_id::tag, ast_party_subaddress::type, ast_party_name::valid, ast_party_number::valid, ast_party_subaddress::valid, and value.
Referenced by __ast_read(), ast_channel_connected_line_macro(), ast_indicate_data(), feature_request_and_dial(), socket_process(), and wait_for_answer().
{
size_t pos;
unsigned char ie_len;
unsigned char ie_id;
int32_t value;
int frame_version = 1;
int combined_presentation = 0;
int got_combined_presentation = 0;/* TRUE if got a combined name and number presentation value. */
for (pos = 0; pos < datalen; pos += ie_len) {
if (datalen < pos + sizeof(ie_id) + sizeof(ie_len)) {
ast_log(LOG_WARNING, "Invalid connected line update\n");
return -1;
}
ie_id = data[pos++];
ie_len = data[pos++];
if (datalen < pos + ie_len) {
ast_log(LOG_WARNING, "Invalid connected line update\n");
return -1;
}
switch (ie_id) {
/* Connected line party frame version */
case AST_CONNECTED_LINE_VERSION:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid connected line frame version (%u)\n",
(unsigned) ie_len);
break;
}
frame_version = data[pos];
break;
/* Connected line party id name */
case AST_CONNECTED_LINE_NAME:
ast_free(connected->id.name.str);
connected->id.name.str = ast_malloc(ie_len + 1);
if (connected->id.name.str) {
memcpy(connected->id.name.str, data + pos, ie_len);
connected->id.name.str[ie_len] = 0;
}
break;
case AST_CONNECTED_LINE_NAME_CHAR_SET:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid connected line name char set (%u)\n",
(unsigned) ie_len);
break;
}
connected->id.name.char_set = data[pos];
break;
case AST_CONNECTED_LINE_NAME_PRESENTATION:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid connected line name presentation (%u)\n",
(unsigned) ie_len);
break;
}
connected->id.name.presentation = data[pos];
break;
case AST_CONNECTED_LINE_NAME_VALID:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid connected line name valid (%u)\n",
(unsigned) ie_len);
break;
}
connected->id.name.valid = data[pos];
break;
/* Connected line party id number */
case AST_CONNECTED_LINE_NUMBER:
ast_free(connected->id.number.str);
connected->id.number.str = ast_malloc(ie_len + 1);
if (connected->id.number.str) {
memcpy(connected->id.number.str, data + pos, ie_len);
connected->id.number.str[ie_len] = 0;
}
break;
case AST_CONNECTED_LINE_NUMBER_PLAN:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid connected line numbering plan (%u)\n",
(unsigned) ie_len);
break;
}
connected->id.number.plan = data[pos];
break;
case AST_CONNECTED_LINE_NUMBER_PRESENTATION:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid connected line number presentation (%u)\n",
(unsigned) ie_len);
break;
}
connected->id.number.presentation = data[pos];
break;
case AST_CONNECTED_LINE_NUMBER_VALID:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid connected line number valid (%u)\n",
(unsigned) ie_len);
break;
}
connected->id.number.valid = data[pos];
break;
/* Connected line party id combined presentation */
case AST_CONNECTED_LINE_ID_PRESENTATION:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid connected line combined presentation (%u)\n",
(unsigned) ie_len);
break;
}
combined_presentation = data[pos];
got_combined_presentation = 1;
break;
/* Connected line party id subaddress */
case AST_CONNECTED_LINE_SUBADDRESS:
ast_free(connected->id.subaddress.str);
connected->id.subaddress.str = ast_malloc(ie_len + 1);
if (connected->id.subaddress.str) {
memcpy(connected->id.subaddress.str, data + pos, ie_len);
connected->id.subaddress.str[ie_len] = 0;
}
break;
case AST_CONNECTED_LINE_SUBADDRESS_TYPE:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid connected line type of subaddress (%u)\n",
(unsigned) ie_len);
break;
}
connected->id.subaddress.type = data[pos];
break;
case AST_CONNECTED_LINE_SUBADDRESS_ODD_EVEN:
if (ie_len != 1) {
ast_log(LOG_WARNING,
"Invalid connected line subaddress odd-even indicator (%u)\n",
(unsigned) ie_len);
break;
}
connected->id.subaddress.odd_even_indicator = data[pos];
break;
case AST_CONNECTED_LINE_SUBADDRESS_VALID:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid connected line subaddress valid (%u)\n",
(unsigned) ie_len);
break;
}
connected->id.subaddress.valid = data[pos];
break;
/* Connected line party tag */
case AST_CONNECTED_LINE_TAG:
ast_free(connected->id.tag);
connected->id.tag = ast_malloc(ie_len + 1);
if (connected->id.tag) {
memcpy(connected->id.tag, data + pos, ie_len);
connected->id.tag[ie_len] = 0;
}
break;
/* Connected line party source */
case AST_CONNECTED_LINE_SOURCE:
if (ie_len != sizeof(value)) {
ast_log(LOG_WARNING, "Invalid connected line source (%u)\n",
(unsigned) ie_len);
break;
}
memcpy(&value, data + pos, sizeof(value));
connected->source = ntohl(value);
break;
/* Connected line party unknown element */
default:
ast_log(LOG_DEBUG, "Unknown connected line element: %u (%u)\n",
(unsigned) ie_id, (unsigned) ie_len);
break;
}
}
switch (frame_version) {
case 1:
/*
* The other end is an earlier version that we need to adjust
* for compatibility.
*/
connected->id.name.valid = 1;
connected->id.name.char_set = AST_PARTY_CHAR_SET_ISO8859_1;
connected->id.number.valid = 1;
if (got_combined_presentation) {
connected->id.name.presentation = combined_presentation;
connected->id.number.presentation = combined_presentation;
}
break;
case 2:
/* The other end is at the same level as we are. */
break;
default:
/*
* The other end is newer than we are.
* We need to assume that they are compatible with us.
*/
ast_log(LOG_DEBUG, "Connected line frame has newer version: %u\n",
(unsigned) frame_version);
break;
}
return 0;
}
| void ast_deactivate_generator | ( | struct ast_channel * | chan | ) |
Deactivate an active generator
Definition at line 3029 of file channel.c.
References ast_channel_lock, ast_channel_set_fd(), ast_channel_unlock, ast_clear_flag, AST_FLAG_WRITE_INT, AST_GENERATOR_FD, ast_settimeout(), ast_channel::generator, ast_channel::generatordata, and ast_generator::release.
Referenced by __ast_read(), app_exec(), ast_channel_stop_silence_generator(), ast_openstream_full(), ast_playtones_stop(), ast_quiet_chan(), ast_read_generator_actions(), ast_tonepair_stop(), ast_write(), cb_events(), channel_spy(), dial_exec_full(), generator_force(), local_ast_moh_stop(), old_milliwatt_exec(), transmit_audio(), and wait_for_answer().
{
ast_channel_lock(chan);
if (chan->generatordata) {
if (chan->generator && chan->generator->release)
chan->generator->release(chan, chan->generatordata);
chan->generatordata = NULL;
chan->generator = NULL;
ast_channel_set_fd(chan, AST_GENERATOR_FD, -1);
ast_clear_flag(chan, AST_FLAG_WRITE_INT);
ast_settimeout(chan, 0, NULL, NULL);
}
ast_channel_unlock(chan);
}
| int ast_do_masquerade | ( | struct ast_channel * | original | ) |
Start masquerading a channel.
- Note:
- absolutely _NO_ channel locks should be held before calling this function.
XXX This is a seriously whacked out operation. We're essentially putting the guts of the clone channel into the original channel. Start by killing off the original channel's backend. I'm not sure we're going to keep this function, because while the features are nice, the cost is very high in terms of pure nastiness. XXX
- Parameters:
-
chan Channel to masquerade
Start masquerading a channel.
- Note:
- Assumes _NO_ channels and _NO_ channel pvt's are locked. If a channel is locked while calling this function, it invalidates our channel container locking order. All channels must be unlocked before it is permissible to lock the channels' ao2 container.
Definition at line 6381 of file channel.c.
References __ast_change_name_nolink(), ast_channel::_bridge, ast_channel::_softhangup, ast_channel::_state, accountcode, ast_channel::accountcode, ast_channel::adsicpe, ast_channel::alertpipe, ao2_link, ao2_lock, ao2_unlink, ao2_unlock, ast_app_group_update(), ast_autochan_new_channel(), ast_bridged_channel(), ast_cause2str(), AST_CEL_BRIDGE_UPDATE, ast_cel_report_event(), ast_channel_datastore_find(), ast_channel_datastore_remove(), ast_channel_lock, AST_CHANNEL_NAME, ast_channel_release(), ast_channel_set_fd(), ast_channel_set_linkgroup(), ast_channel_trylock, ast_channel_unlock, AST_CONTROL_SRCCHANGE, AST_CONTROL_UNHOLD, ast_copy_string(), ast_datastore_free(), ast_debug, AST_FLAG_BLOCKING, AST_FLAG_EXCEPTION, AST_FLAG_OUTGOING, AST_FLAG_ZOMBIE, AST_GENERATOR_FD, ast_getformatname(), ast_indicate(), ast_kill_tech, AST_LIST_APPEND_LIST, AST_LIST_FIRST, AST_LIST_HEAD_NOLOCK, AST_LIST_HEAD_SET_NOLOCK, AST_LIST_INSERT_TAIL, AST_LIST_REMOVE_HEAD, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, ast_log(), ast_manager_event, ast_manager_event_multichan, AST_MAX_FDS, ast_null_frame, ast_queue_frame(), ast_set_flag, ast_set_read_format(), ast_set_write_format(), AST_SOFTHANGUP_DEV, ast_state2str(), ast_string_field_set, ast_test_flag, AST_TIMING_FD, ast_channel::blocker, ast_channel::caller, ast_channel::cdr, ast_datastore_info::chan_fixup, CHANNEL_DEADLOCK_AVOIDANCE, channels, clone_variables(), ast_channel::connected, ast_datastore::data, ast_channel::datastores, ast_channel::dialed, errno, EVENT_FLAG_CALL, ast_channel::fdno, ast_channel::fds, ast_channel_tech::fixup, free_translation(), ast_channel_tech::hangup, ast_channel::hangupcause, ast_datastore::info, language, ast_channel::language, LOG_WARNING, ast_channel::masq, ast_channel::masqr, masquerade_colp_transfer(), ast_channel::monitor, musicclass, ast_channel::musicclass, ast_channel::name, ast_channel::nativeformats, ast_channel::rawreadformat, ast_channel::rawwriteformat, ast_channel::readformat, ast_channel::readq, ast_channel::redirecting, report_new_callerid(), S_OR, ast_channel::tech, ast_channel::tech_pvt, ast_channel::timingfd, xfer_masquerade_ds::transferee_held, ast_channel_tech::type, ast_channel::uniqueid, ast_channel::visible_indication, and ast_channel::writeformat.
Referenced by __ast_read(), ast_async_goto(), ast_do_pickup(), ast_hangup(), ast_waitfor_nandfds(), ast_write(), builtin_atxfer(), check_goto_on_transfer(), do_bridge_masquerade(), handle_invite_replaces(), iax_park(), local_attended_transfer(), masq_park_call(), and sip_park().
{
format_t x;
int i;
int res=0;
int origstate;
int visible_indication;
struct ast_frame *current;
const struct ast_channel_tech *t;
void *t_pvt;
union {
struct ast_party_dialed dialed;
struct ast_party_caller caller;
struct ast_party_connected_line connected;
struct ast_party_redirecting redirecting;
} exchange;
struct ast_channel *clonechan, *chans[2];
struct ast_channel *bridged;
struct ast_cdr *cdr;
struct ast_datastore *xfer_ds;
struct xfer_masquerade_ds *xfer_colp;
format_t rformat = original->readformat;
format_t wformat = original->writeformat;
char newn[AST_CHANNEL_NAME];
char orig[AST_CHANNEL_NAME];
char masqn[AST_CHANNEL_NAME];
char zombn[AST_CHANNEL_NAME];
/* XXX This operation is a bit odd. We're essentially putting the guts of
* the clone channel into the original channel. Start by killing off the
* original channel's backend. While the features are nice, which is the
* reason we're keeping it, it's still awesomely weird. XXX */
/* The reasoning for the channels ao2_container lock here is complex.
*
* In order to check for a race condition, the original channel must
* be locked. If it is determined that the masquerade should proceed
* the original channel can absolutely not be unlocked until the end
* of the function. Since after determining the masquerade should
* continue requires the channels to be unlinked from the ao2_container,
* the container lock must be held first to achieve proper locking order.
*/
ao2_lock(channels);
/* lock the original channel to determine if the masquerade is required or not */
ast_channel_lock(original);
/*
* This checks to see if the masquerade has already happened or
* not. There is a race condition that exists for this
* function. Since all pvt and channel locks must be let go
* before calling do_masquerade, it is possible that it could be
* called multiple times for the same channel. This check
* verifies whether or not the masquerade has already been
* completed by another thread.
*/
while ((clonechan = original->masq) && ast_channel_trylock(clonechan)) {
/*
* A masq is needed but we could not get the clonechan lock
* immediately. Since this function already holds the global
* container lock, unlocking original for deadlock avoidance
* will not result in any sort of masquerade race condition. If
* masq is called by a different thread while this happens, it
* will be stuck waiting until we unlock the container.
*/
CHANNEL_DEADLOCK_AVOIDANCE(original);
}
/*
* A final masq check must be done after deadlock avoidance for
* clonechan above or we could get a double masq. This is
* posible with ast_hangup at least.
*/
if (!clonechan) {
/* masq already completed by another thread, or never needed to be done to begin with */
ast_channel_unlock(original);
ao2_unlock(channels);
return 0;
}
/* Get any transfer masquerade connected line exchange data. */
xfer_ds = ast_channel_datastore_find(original, &xfer_ds_info, NULL);
if (xfer_ds) {
ast_channel_datastore_remove(original, xfer_ds);
xfer_colp = xfer_ds->data;
} else {
xfer_colp = NULL;
}
/*
* Release any hold on the transferee channel before proceeding
* with the masquerade.
*/
if (xfer_colp && xfer_colp->transferee_held) {
ast_indicate(clonechan, AST_CONTROL_UNHOLD);
}
/* clear the masquerade channels */
original->masq = NULL;
clonechan->masqr = NULL;
/* unlink from channels container as name (which is the hash value) will change */
ao2_unlink(channels, original);
ao2_unlink(channels, clonechan);
ast_debug(4, "Actually Masquerading %s(%d) into the structure of %s(%d)\n",
clonechan->name, clonechan->_state, original->name, original->_state);
/*
* Stop any visible indiction on the original channel so we can
* transfer it to the clonechan taking the original's place.
*/
visible_indication = original->visible_indication;
ast_indicate(original, -1);
chans[0] = clonechan;
chans[1] = original;
ast_manager_event_multichan(EVENT_FLAG_CALL, "Masquerade", 2, chans,
"Clone: %s\r\n"
"CloneState: %s\r\n"
"Original: %s\r\n"
"OriginalState: %s\r\n",
clonechan->name, ast_state2str(clonechan->_state), original->name, ast_state2str(original->_state));
/* Having remembered the original read/write formats, we turn off any translation on either
one */
free_translation(clonechan);
free_translation(original);
/* Save the original name */
ast_copy_string(orig, original->name, sizeof(orig));
/* Save the new name */
ast_copy_string(newn, clonechan->name, sizeof(newn));
/* Create the masq name */
snprintf(masqn, sizeof(masqn), "%s<MASQ>", newn);
/* Mangle the name of the clone channel */
__ast_change_name_nolink(clonechan, masqn);
/* Copy the name from the clone channel */
__ast_change_name_nolink(original, newn);
/* share linked id's */
ast_channel_set_linkgroup(original, clonechan);
/* Swap the technologies */
t = original->tech;
original->tech = clonechan->tech;
clonechan->tech = t;
/* Swap the cdrs */
cdr = original->cdr;
original->cdr = clonechan->cdr;
clonechan->cdr = cdr;
t_pvt = original->tech_pvt;
original->tech_pvt = clonechan->tech_pvt;
clonechan->tech_pvt = t_pvt;
/* Swap the alertpipes */
for (i = 0; i < 2; i++) {
x = original->alertpipe[i];
original->alertpipe[i] = clonechan->alertpipe[i];
clonechan->alertpipe[i] = x;
}
/*
* Swap the readq's. The end result should be this:
*
* 1) All frames should be on the new (original) channel.
* 2) Any frames that were already on the new channel before this
* masquerade need to be at the end of the readq, after all of the
* frames on the old (clone) channel.
* 3) The alertpipe needs to get poked for every frame that was already
* on the new channel, since we are now using the alert pipe from the
* old (clone) channel.
*/
{
AST_LIST_HEAD_NOLOCK(, ast_frame) tmp_readq;
AST_LIST_HEAD_SET_NOLOCK(&tmp_readq, NULL);
AST_LIST_APPEND_LIST(&tmp_readq, &original->readq, frame_list);
AST_LIST_APPEND_LIST(&original->readq, &clonechan->readq, frame_list);
while ((current = AST_LIST_REMOVE_HEAD(&tmp_readq, frame_list))) {
AST_LIST_INSERT_TAIL(&original->readq, current, frame_list);
if (original->alertpipe[1] > -1) {
int poke = 0;
if (write(original->alertpipe[1], &poke, sizeof(poke)) < 0) {
ast_log(LOG_WARNING, "write() failed: %s\n", strerror(errno));
}
}
}
}
/* Swap the raw formats */
x = original->rawreadformat;
original->rawreadformat = clonechan->rawreadformat;
clonechan->rawreadformat = x;
x = original->rawwriteformat;
original->rawwriteformat = clonechan->rawwriteformat;
clonechan->rawwriteformat = x;
clonechan->_softhangup = AST_SOFTHANGUP_DEV;
/* And of course, so does our current state. Note we need not
call ast_setstate since the event manager doesn't really consider
these separate. We do this early so that the clone has the proper
state of the original channel. */
origstate = original->_state;
original->_state = clonechan->_state;
clonechan->_state = origstate;
if (clonechan->tech->fixup && clonechan->tech->fixup(original, clonechan)) {
ast_log(LOG_WARNING, "Fixup failed on channel %s, strange things may happen.\n", clonechan->name);
}
/* Start by disconnecting the original's physical side */
if (clonechan->tech->hangup && clonechan->tech->hangup(clonechan)) {
ast_log(LOG_WARNING, "Hangup failed! Strange things may happen!\n");
res = -1;
goto done;
}
/*
* We just hung up the physical side of the channel. Set the
* new zombie to use the kill channel driver for safety.
*/
clonechan->tech = &ast_kill_tech;
/* Mangle the name of the clone channel */
snprintf(zombn, sizeof(zombn), "%s<ZOMBIE>", orig); /* quick, hide the brains! */
__ast_change_name_nolink(clonechan, zombn);
/* Update the type. */
t_pvt = original->monitor;
original->monitor = clonechan->monitor;
clonechan->monitor = t_pvt;
/* Keep the same language. */
ast_string_field_set(original, language, clonechan->language);
/* Copy the FD's other than the generator fd */
for (x = 0; x < AST_MAX_FDS; x++) {
if (x != AST_GENERATOR_FD)
ast_channel_set_fd(original, x, clonechan->fds[x]);
}
ast_app_group_update(clonechan, original);
/* Move data stores over */
if (AST_LIST_FIRST(&clonechan->datastores)) {
struct ast_datastore *ds;
/* We use a safe traversal here because some fixup routines actually
* remove the datastore from the list and free them.
*/
AST_LIST_TRAVERSE_SAFE_BEGIN(&clonechan->datastores, ds, entry) {
if (ds->info->chan_fixup)
ds->info->chan_fixup(ds->data, clonechan, original);
}
AST_LIST_TRAVERSE_SAFE_END;
AST_LIST_APPEND_LIST(&original->datastores, &clonechan->datastores, entry);
}
ast_autochan_new_channel(clonechan, original);
clone_variables(original, clonechan);
/* Presense of ADSI capable CPE follows clone */
original->adsicpe = clonechan->adsicpe;
/* Bridge remains the same */
/* CDR fields remain the same */
/* XXX What about blocking, softhangup, blocker, and lock and blockproc? XXX */
/* Application and data remain the same */
/* Clone exception becomes real one, as with fdno */
ast_set_flag(original, ast_test_flag(clonechan, AST_FLAG_EXCEPTION | AST_FLAG_OUTGOING));
original->fdno = clonechan->fdno;
/* Schedule context remains the same */
/* Stream stuff stays the same */
/* Keep the original state. The fixup code will need to work with it most likely */
/*
* Just swap the whole structures, nevermind the allocations,
* they'll work themselves out.
*/
exchange.dialed = original->dialed;
original->dialed = clonechan->dialed;
clonechan->dialed = exchange.dialed;
exchange.caller = original->caller;
original->caller = clonechan->caller;
clonechan->caller = exchange.caller;
exchange.connected = original->connected;
original->connected = clonechan->connected;
clonechan->connected = exchange.connected;
exchange.redirecting = original->redirecting;
original->redirecting = clonechan->redirecting;
clonechan->redirecting = exchange.redirecting;
report_new_callerid(original);
/* Restore original timing file descriptor */
ast_channel_set_fd(original, AST_TIMING_FD, original->timingfd);
/* Our native formats are different now */
original->nativeformats = clonechan->nativeformats;
/* Context, extension, priority, app data, jump table, remain the same */
/* pvt switches. pbx stays the same, as does next */
/* Set the write format */
ast_set_write_format(original, wformat);
/* Set the read format */
ast_set_read_format(original, rformat);
/* Copy the music class */
ast_string_field_set(original, musicclass, clonechan->musicclass);
/* copy over accuntcode and set peeraccount across the bridge */
ast_string_field_set(original, accountcode, S_OR(clonechan->accountcode, ""));
if (original->_bridge) {
/* XXX - should we try to lock original->_bridge here? */
ast_string_field_set(original->_bridge, peeraccount, S_OR(clonechan->accountcode, ""));
ast_cel_report_event(original, AST_CEL_BRIDGE_UPDATE, NULL, NULL, NULL);
}
ast_debug(1, "Putting channel %s in %s/%s formats\n", original->name,
ast_getformatname(wformat), ast_getformatname(rformat));
/* Okay. Last thing is to let the channel driver know about all this mess, so he
can fix up everything as best as possible */
if (original->tech->fixup) {
if (original->tech->fixup(clonechan, original)) {
ast_log(LOG_WARNING, "Channel for type '%s' could not fixup channel %s\n",
original->tech->type, original->name);
res = -1;
goto done;
}
} else
ast_log(LOG_WARNING, "Channel type '%s' does not have a fixup routine (for %s)! Bad things may happen.\n",
original->tech->type, original->name);
/*
* If an indication is currently playing, maintain it on the channel
* that is taking the place of original
*
* This is needed because the masquerade is swapping out in the internals
* of this channel, and the new channel private data needs to be made
* aware of the current visible indication (RINGING, CONGESTION, etc.)
*/
if (visible_indication) {
ast_indicate(original, visible_indication);
}
/* Now, at this point, the "clone" channel is totally F'd up. We mark it as
a zombie so nothing tries to touch it. If it's already been marked as a
zombie, then free it now (since it already is considered invalid). */
if (ast_test_flag(clonechan, AST_FLAG_ZOMBIE)) {
ast_debug(1, "Destroying channel clone '%s'\n", clonechan->name);
ast_channel_unlock(clonechan);
ast_manager_event(clonechan, EVENT_FLAG_CALL, "Hangup",
"Channel: %s\r\n"
"Uniqueid: %s\r\n"
"Cause: %d\r\n"
"Cause-txt: %s\r\n",
clonechan->name,
clonechan->uniqueid,
clonechan->hangupcause,
ast_cause2str(clonechan->hangupcause)
);
clonechan = ast_channel_release(clonechan);
} else {
ast_debug(1, "Released clone lock on '%s'\n", clonechan->name);
ast_set_flag(clonechan, AST_FLAG_ZOMBIE);
ast_queue_frame(clonechan, &ast_null_frame);
}
/* Signal any blocker */
if (ast_test_flag(original, AST_FLAG_BLOCKING))
pthread_kill(original->blocker, SIGURG);
ast_debug(1, "Done Masquerading %s (%d)\n", original->name, original->_state);
if ((bridged = ast_bridged_channel(original))) {
ast_channel_lock(bridged);
ast_indicate(bridged, AST_CONTROL_SRCCHANGE);
ast_channel_unlock(bridged);
}
ast_indicate(original, AST_CONTROL_SRCCHANGE);
if (xfer_colp) {
/*
* After the masquerade, the original channel pointer actually
* points to the new transferee channel and the bridged channel
* is still the intended transfer target party.
*/
masquerade_colp_transfer(original, xfer_colp);
}
done:
if (xfer_ds) {
ast_datastore_free(xfer_ds);
}
/* it is possible for the clone channel to disappear during this */
if (clonechan) {
ast_channel_unlock(original);
ast_channel_unlock(clonechan);
ao2_link(channels, clonechan);
ao2_link(channels, original);
} else {
ast_channel_unlock(original);
ao2_link(channels, original);
}
ao2_unlock(channels);
return res;
}
| struct ast_channel* ast_dummy_channel_alloc | ( | void | ) | [read] |
Create a fake channel structure.
- Return values:
-
NULL failure non-NULL successfully allocated channel
- Note:
- This function should ONLY be used to create a fake channel that can then be populated with data for use in variable substitution when a real channel does not exist.
- The created dummy channel should be destroyed by ast_channel_unref(). Using ast_channel_release() needlessly grabs the channel container lock and can cause a deadlock as a result. Also grabbing the channel container lock reduces system performance.
Definition at line 1369 of file channel.c.
References __ao2_alloc_debug(), ao2_alloc, ast_channel_unref, ast_dummy_channel_destructor(), AST_LIST_HEAD_INIT_NOLOCK, ast_string_field_init, and ast_channel::varshead.
Referenced by acf_odbc_read(), acf_odbc_write(), action_getvar(), ast_add_extension2_lockopt(), ast_cel_fabricate_channel_from_event(), ast_pbx_outgoing_cdr_failed(), ast_str_substitute_variables_full(), cli_odbc_read(), cli_odbc_write(), custom_log(), make_email_file(), manager_log(), pbx_substitute_variables_helper_full(), rotate_file(), sendmail(), sendpage(), syslog_log(), and write_cdr().
{
struct ast_channel *tmp;
struct varshead *headp;
#if defined(REF_DEBUG)
tmp = __ao2_alloc_debug(sizeof(*tmp), ast_dummy_channel_destructor, "dummy channel",
file, line, function, 1);
#elif defined(__AST_DEBUG_MALLOC)
tmp = __ao2_alloc_debug(sizeof(*tmp), ast_dummy_channel_destructor, "dummy channel",
file, line, function, 0);
#else
tmp = ao2_alloc(sizeof(*tmp), ast_dummy_channel_destructor);
#endif
if (!tmp) {
/* Dummy channel structure allocation failure. */
return NULL;
}
if ((ast_string_field_init(tmp, 128))) {
return ast_channel_unref(tmp);
}
headp = &tmp->varshead;
AST_LIST_HEAD_INIT_NOLOCK(headp);
return tmp;
}
| static int ast_fdisset | ( | struct pollfd * | pfds, |
| int | fd, | ||
| int | maximum, | ||
| int * | start | ||
| ) | [inline, static] |
Helper function for migrating select to poll.
Definition at line 2365 of file channel.h.
References dummy().
Referenced by do_monitor().
| struct ast_channel_tech* ast_get_channel_tech | ( | const char * | name | ) | [read] |
Get a channel technology structure by name.
- Parameters:
-
name name of technology to find
- Returns:
- a pointer to the structure, or NULL if no matching technology found
Definition at line 939 of file channel.c.
References AST_RWLIST_RDLOCK, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, chanlist::tech, and ast_channel_tech::type.
Referenced by __ast_channel_alloc_ap(), _ast_device_state(), ast_cc_callback(), and ast_var_channel_types_table().
{
struct chanlist *chanls;
const struct ast_channel_tech *ret = NULL;
AST_RWLIST_RDLOCK(&backends);
AST_RWLIST_TRAVERSE(&backends, chanls, list) {
if (!strcasecmp(name, chanls->tech->type)) {
ret = chanls->tech;
break;
}
}
AST_RWLIST_UNLOCK(&backends);
return ret;
}
| ast_group_t ast_get_group | ( | const char * | s | ) |
Definition at line 7716 of file channel.c.
References ast_log(), ast_strdupa, ast_strlen_zero(), group, LOG_ERROR, LOG_WARNING, and strsep().
Referenced by _parse(), build_device(), build_gateway(), build_peer(), config_parse_variables(), func_channel_write_real(), process_dahdi(), and read_agent_config().
{
char *piece;
char *c;
int start=0, finish=0, x;
ast_group_t group = 0;
if (ast_strlen_zero(s))
return 0;
c = ast_strdupa(s);
while ((piece = strsep(&c, ","))) {
if (sscanf(piece, "%30d-%30d", &start, &finish) == 2) {
/* Range */
} else if (sscanf(piece, "%30d", &start)) {
/* Just one */
finish = start;
} else {
ast_log(LOG_ERROR, "Syntax error parsing group configuration '%s' at '%s'. Ignoring.\n", s, piece);
continue;
}
for (x = start; x <= finish; x++) {
if ((x > 63) || (x < 0)) {
ast_log(LOG_WARNING, "Ignoring invalid group %d (maximum group is 63)\n", x);
} else
group |= ((ast_group_t) 1 << x);
}
}
return group;
}
| int ast_hangup | ( | struct ast_channel * | chan | ) |
Hang up a channel.
- Note:
- Absolutely _NO_ channel locks should be held before calling this function.
- This function performs a hard hangup on a channel. Unlike the soft-hangup, this function performs all stream stopping, etc, on the channel that needs to end. chan is no longer valid after this call.
- Parameters:
-
chan channel to hang up
- Returns:
- Returns 0 on success, -1 on failure.
Definition at line 2733 of file channel.c.
References ao2_lock, ao2_unlink, ao2_unlock, ast_assert, ast_audiohook_detach_list(), ast_autoservice_stop(), ast_cause2str(), ast_cc_offer(), ast_cdr_detach(), ast_cdr_end(), AST_CDR_FLAG_BRIDGED, AST_CDR_FLAG_DIALED, AST_CDR_FLAG_POST_DISABLED, AST_CDR_NULL, AST_CEL_HANGUP, ast_cel_report_event(), ast_channel_lock, ast_channel_unlock, ast_channel_unref, ast_closestream(), ast_debug, ast_do_masquerade(), AST_FLAG_BLOCKING, AST_FLAG_ZOMBIE, ast_framehook_list_destroy(), ast_log(), ast_manager_event, ast_set_flag, ast_test_flag, ast_channel::audiohooks, ast_channel::blocker, ast_channel::blockproc, ast_channel::caller, ast_channel::cdr, channels, ast_channel::connected, ast_cdr::disposition, EVENT_FLAG_CALL, free_translation(), ast_channel::generator, ast_channel::generatordata, ast_channel_tech::hangup, ast_channel::hangupcause, ast_channel::hangupsource, ast_party_caller::id, ast_party_connected_line::id, LOG_WARNING, ast_channel::masq, ast_channel::masqr, ast_party_id::name, ast_channel::name, ast_party_id::number, pbx_builtin_getvar_helper(), ast_generator::release, S_COR, S_OR, ast_channel::sched, sched_context_destroy(), ast_party_name::str, ast_party_number::str, ast_channel::stream, ast_channel::tech, ast_channel::uniqueid, ast_party_name::valid, ast_party_number::valid, and ast_channel::vstream.
Referenced by __analog_handle_event(), __analog_ss_thread(), __ast_pbx_run(), __ast_request_and_dial(), __oh323_new(), action_bridge(), alsa_new(), analog_handle_init_event(), analog_ss_thread(), answer_exec_run(), app_exec(), ast_async_goto(), ast_call_forward(), ast_dial_destroy(), ast_dial_hangup(), ast_iax2_new(), ast_pbx_outgoing_app(), ast_pbx_outgoing_exten(), ast_pbx_run_app(), async_wait(), begin_dial_channel(), bridge_call_thread(), bridge_channel_thread(), bridge_exec(), build_conf(), builtin_atxfer(), chanavail_exec(), check_availability(), check_compat(), check_goto_on_transfer(), clear_caller(), conf_free(), conf_run(), connect_link(), console_new(), dahdi_handle_event(), dahdi_new(), destroy_conference_bridge(), dial_exec_full(), dial_transfer(), do_forward(), do_hang(), do_idle_thread(), feature_attended_transfer(), feature_request_and_dial(), findmeexec(), generic_recall(), gtalk_new(), handle_call_forward(), handle_callforward_button(), handle_enbloc_call_message(), handle_frame(), handle_frame_ownerless(), handle_hd_hf(), handle_init_event(), handle_invite_replaces(), handle_offhook_message(), handle_request_invite(), handle_soft_key_event_message(), handle_stimulus_message(), handle_timeout_trip(), handle_transfer_button(), HandleCallOutgoing(), hangup_chan(), hangupcalls(), hanguptree(), iax2_request(), iax_park(), iax_park_thread(), jingle_new(), local_hangup(), manage_parked_call(), masq_park_call(), mgcp_new(), mgcp_ss(), monitor_dial(), mwi_thread(), my_distinctive_ring(), my_handle_notify_message(), nbs_new(), oss_new(), parkandannounce_exec(), parked_call_exec(), phone_new(), play_sound_file(), pri_dchannel(), pri_ss_thread(), rpt(), rpt_call(), rpt_exec(), rpt_tele_thread(), sip_park(), sip_park_thread(), sip_pickup_thread(), skinny_new(), skinny_ss(), ss7_start_call(), try_calling(), unistim_new(), usbradio_new(), wait_for_answer(), and wait_for_winner().
{
char extra_str[64]; /* used for cel logging below */
ast_autoservice_stop(chan);
ao2_lock(channels);
ast_channel_lock(chan);
if (chan->audiohooks) {
ast_audiohook_detach_list(chan->audiohooks);
chan->audiohooks = NULL;
}
ast_framehook_list_destroy(chan);
/*
* Do the masquerade if someone is setup to masquerade into us.
*
* NOTE: We must hold the channel lock after testing for a
* pending masquerade and setting the channel as a zombie to
* prevent __ast_channel_masquerade() from setting up a
* masquerade with a dead channel.
*/
while (chan->masq) {
ast_channel_unlock(chan);
ao2_unlock(channels);
if (ast_do_masquerade(chan)) {
ast_log(LOG_WARNING, "Failed to perform masquerade\n");
/* Abort the loop or we might never leave. */
ao2_lock(channels);
ast_channel_lock(chan);
break;
}
ao2_lock(channels);
ast_channel_lock(chan);
}
if (chan->masqr) {
/*
* This channel is one which will be masqueraded into something.
* Mark it as a zombie already so ast_do_masquerade() will know
* to free it later.
*/
ast_set_flag(chan, AST_FLAG_ZOMBIE);
ast_channel_unlock(chan);
ao2_unlock(channels);
return 0;
}
ao2_unlink(channels, chan);
ao2_unlock(channels);
free_translation(chan);
/* Close audio stream */
if (chan->stream) {
ast_closestream(chan->stream);
chan->stream = NULL;
}
/* Close video stream */
if (chan->vstream) {
ast_closestream(chan->vstream);
chan->vstream = NULL;
}
if (chan->sched) {
sched_context_destroy(chan->sched);
chan->sched = NULL;
}
if (chan->generatordata) { /* Clear any tone stuff remaining */
if (chan->generator && chan->generator->release) {
chan->generator->release(chan, chan->generatordata);
}
}
chan->generatordata = NULL;
chan->generator = NULL;
snprintf(extra_str, sizeof(extra_str), "%d,%s,%s", chan->hangupcause, chan->hangupsource, S_OR(pbx_builtin_getvar_helper(chan, "DIALSTATUS"), ""));
ast_cel_report_event(chan, AST_CEL_HANGUP, NULL, extra_str, NULL);
if (ast_test_flag(chan, AST_FLAG_BLOCKING)) {
ast_log(LOG_WARNING, "Hard hangup called by thread %ld on %s, while fd "
"is blocked by thread %ld in procedure %s! Expect a failure\n",
(long) pthread_self(), chan->name, (long)chan->blocker, chan->blockproc);
ast_assert(ast_test_flag(chan, AST_FLAG_BLOCKING) == 0);
}
if (!ast_test_flag(chan, AST_FLAG_ZOMBIE)) {
ast_debug(1, "Hanging up channel '%s'\n", chan->name);
/*
* This channel is now dead so mark it as a zombie so anyone
* left holding a reference to this channel will not use it.
*/
ast_set_flag(chan, AST_FLAG_ZOMBIE);
if (chan->tech->hangup) {
chan->tech->hangup(chan);
}
} else {
ast_debug(1, "Hanging up zombie '%s'\n", chan->name);
}
ast_channel_unlock(chan);
ast_cc_offer(chan);
ast_manager_event(chan, EVENT_FLAG_CALL, "Hangup",
"Channel: %s\r\n"
"Uniqueid: %s\r\n"
"CallerIDNum: %s\r\n"
"CallerIDName: %s\r\n"
"ConnectedLineNum: %s\r\n"
"ConnectedLineName: %s\r\n"
"Cause: %d\r\n"
"Cause-txt: %s\r\n",
chan->name,
chan->uniqueid,
S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, "<unknown>"),
S_COR(chan->caller.id.name.valid, chan->caller.id.name.str, "<unknown>"),
S_COR(chan->connected.id.number.valid, chan->connected.id.number.str, "<unknown>"),
S_COR(chan->connected.id.name.valid, chan->connected.id.name.str, "<unknown>"),
chan->hangupcause,
ast_cause2str(chan->hangupcause)
);
if (chan->cdr && !ast_test_flag(chan->cdr, AST_CDR_FLAG_BRIDGED) &&
!ast_test_flag(chan->cdr, AST_CDR_FLAG_POST_DISABLED) &&
(chan->cdr->disposition != AST_CDR_NULL || ast_test_flag(chan->cdr, AST_CDR_FLAG_DIALED))) {
ast_channel_lock(chan);
ast_cdr_end(chan->cdr);
ast_cdr_detach(chan->cdr);
chan->cdr = NULL;
ast_channel_unlock(chan);
}
ast_channel_unref(chan);
return 0;
}
| int ast_indicate | ( | struct ast_channel * | chan, |
| int | condition | ||
| ) |
Indicates condition of channel.
- Note:
- Indicate a condition such as AST_CONTROL_BUSY, AST_CONTROL_RINGING, or AST_CONTROL_CONGESTION on a channel
- Parameters:
-
chan channel to change the indication condition which condition to indicate on the channel
- Returns:
- Returns 0 on success, -1 on failure
Definition at line 4262 of file channel.c.
References ast_indicate_data().
Referenced by __ast_play_and_record(), agent_request(), alsa_call(), answer_trunk_chan(), ast_bridge_call(), ast_channel_bridge(), ast_do_masquerade(), ast_dtmf_stream(), ast_raw_answer(), attempt_transfer(), builtin_atxfer(), builtin_blindtransfer(), cli_console_answer(), conf_run(), console_call(), dial_exec_full(), disa_exec(), do_forward(), feature_request_and_dial(), finishup(), function_remote(), handle_callforward_button(), handle_frame(), handle_recordfile(), handle_request_refer(), local_attended_transfer(), manage_parked_call(), mgcp_ss(), monitor_dial(), oss_call(), park_call_full(), parked_call_exec(), pbx_builtin_busy(), pbx_builtin_congestion(), pbx_builtin_incomplete(), pbx_builtin_proceeding(), pbx_builtin_progress(), pbx_builtin_ringing(), pbx_builtin_waitexten(), queue_exec(), record_exec(), rna(), rpt(), rpt_exec(), say_periodic_announcement(), say_position(), send_waveform_to_channel(), skinny_ss(), sla_handle_hold_event(), sla_station_exec(), sla_trunk_exec(), try_calling(), and wait_for_answer().
{
return ast_indicate_data(chan, condition, NULL, 0);
}
| int ast_indicate_data | ( | struct ast_channel * | chan, |
| int | condition, | ||
| const void * | data, | ||
| size_t | datalen | ||
| ) |
Indicates condition of channel, with payload.
- Note:
- Indicate a condition such as AST_CONTROL_HOLD with payload being music on hold class
- Parameters:
-
chan channel to change the indication condition which condition to indicate on the channel data pointer to payload data datalen size of payload data
- Returns:
- Returns 0 on success, -1 on failure
- Note:
- If we compare the enumeration type, which does not have any negative constants, the compiler may optimize this code away. Therefore, we must perform an integer comparison here.
Definition at line 4316 of file channel.c.
References ast_channel::_state, _XXX_AST_CONTROL_T38, ast_channel_lock, ast_channel_set_connected_line(), ast_channel_set_redirecting(), ast_channel_unlock, ast_check_hangup(), ast_connected_line_parse_data(), AST_CONTROL_ANSWER, AST_CONTROL_AOC, AST_CONTROL_BUSY, AST_CONTROL_CC, AST_CONTROL_CONGESTION, AST_CONTROL_CONNECTED_LINE, AST_CONTROL_END_OF_Q, AST_CONTROL_FLASH, AST_CONTROL_HANGUP, AST_CONTROL_HOLD, AST_CONTROL_INCOMPLETE, AST_CONTROL_OFFHOOK, AST_CONTROL_OPTION, AST_CONTROL_PROCEEDING, AST_CONTROL_PROGRESS, AST_CONTROL_RADIO_KEY, AST_CONTROL_RADIO_UNKEY, AST_CONTROL_READ_ACTION, AST_CONTROL_REDIRECTING, AST_CONTROL_RING, AST_CONTROL_RINGING, AST_CONTROL_SRCCHANGE, AST_CONTROL_SRCUPDATE, AST_CONTROL_T38_PARAMETERS, AST_CONTROL_TAKEOFFHOOK, AST_CONTROL_TRANSFER, AST_CONTROL_UNHOLD, AST_CONTROL_UPDATE_RTP_PEER, AST_CONTROL_VIDUPDATE, AST_CONTROL_WINK, ast_debug, AST_FLAG_ZOMBIE, AST_FRAME_CONTROL, ast_framehook_list_is_empty(), ast_framehook_list_write_event(), ast_frdup(), ast_frfree, ast_get_indication_tone(), ast_log(), ast_party_connected_line_free(), ast_party_connected_line_set_init(), ast_party_redirecting_free(), ast_party_redirecting_set_init(), ast_playtones_start(), ast_playtones_stop(), ast_redirecting_parse_data(), AST_STATE_UP, ast_test_flag, ast_tone_zone_sound_unref(), ast_channel::connected, ast_tone_zone_sound::data, ast_frame::data, ast_frame::datalen, ast_channel::framehooks, ast_frame::frametype, ast_channel_tech::indicate, ast_frame_subclass::integer, is_visible_indication(), LOG_WARNING, ast_channel::name, ast_frame::ptr, ast_channel::redirecting, ast_frame::subclass, ast_channel::tech, ast_channel::visible_indication, and ast_channel::zone.
Referenced by __ast_read(), action_aocmessage(), agent_hangup(), ast_bridge_call(), ast_channel_update_connected_line(), ast_channel_update_redirecting(), ast_generic_bridge(), ast_handle_cc_control_frame(), ast_indicate(), disable_t38(), feature_request_and_dial(), generic_fax_exec(), handle_frame(), local_bridge_loop(), login_exec(), manage_parked_call(), park_call_full(), pbx_builtin_waitexten(), receivefax_t38_init(), remote_bridge_loop(), sendfax_t38_init(), set_fax_t38_caps(), transmit_audio(), transmit_t38(), and wait_for_answer().
{
/* By using an enum, we'll get compiler warnings for values not handled
* in switch statements. */
enum ast_control_frame_type condition = _condition;
struct ast_tone_zone_sound *ts = NULL;
int res;
/* this frame is used by framehooks. if it is set, we must free it at the end of this function */
struct ast_frame *awesome_frame = NULL;
ast_channel_lock(chan);
/* Don't bother if the channel is about to go away, anyway. */
if (ast_test_flag(chan, AST_FLAG_ZOMBIE) || ast_check_hangup(chan)) {
res = -1;
goto indicate_cleanup;
}
if (!ast_framehook_list_is_empty(chan->framehooks)) {
/* Do framehooks now, do it, go, go now */
struct ast_frame frame = {
.frametype = AST_FRAME_CONTROL,
.subclass.integer = condition,
.data.ptr = (void *) data, /* this cast from const is only okay because we do the ast_frdup below */
.datalen = datalen
};
/* we have now committed to freeing this frame */
awesome_frame = ast_frdup(&frame);
/* who knows what we will get back! the anticipation is killing me. */
if (!(awesome_frame = ast_framehook_list_write_event(chan->framehooks, awesome_frame))
|| awesome_frame->frametype != AST_FRAME_CONTROL) {
res = 0;
goto indicate_cleanup;
}
condition = awesome_frame->subclass.integer;
data = awesome_frame->data.ptr;
datalen = awesome_frame->datalen;
}
switch (condition) {
case AST_CONTROL_CONNECTED_LINE:
{
struct ast_party_connected_line connected;
ast_party_connected_line_set_init(&connected, &chan->connected);
res = ast_connected_line_parse_data(data, datalen, &connected);
if (!res) {
ast_channel_set_connected_line(chan, &connected, NULL);
}
ast_party_connected_line_free(&connected);
}
break;
case AST_CONTROL_REDIRECTING:
{
struct ast_party_redirecting redirecting;
ast_party_redirecting_set_init(&redirecting, &chan->redirecting);
res = ast_redirecting_parse_data(data, datalen, &redirecting);
if (!res) {
ast_channel_set_redirecting(chan, &redirecting, NULL);
}
ast_party_redirecting_free(&redirecting);
}
break;
default:
break;
}
if (is_visible_indication(condition)) {
/* A new visible indication is requested. */
chan->visible_indication = condition;
} else if (condition == AST_CONTROL_UNHOLD || _condition < 0) {
/* Visible indication is cleared/stopped. */
chan->visible_indication = 0;
}
if (chan->tech->indicate) {
/* See if the channel driver can handle this condition. */
res = chan->tech->indicate(chan, condition, data, datalen);
} else {
res = -1;
}
if (!res) {
/* The channel driver successfully handled this indication */
res = 0;
goto indicate_cleanup;
}
/* The channel driver does not support this indication, let's fake
* it by doing our own tone generation if applicable. */
/*!\note If we compare the enumeration type, which does not have any
* negative constants, the compiler may optimize this code away.
* Therefore, we must perform an integer comparison here. */
if (_condition < 0) {
/* Stop any tones that are playing */
ast_playtones_stop(chan);
res = 0;
goto indicate_cleanup;
}
/* Handle conditions that we have tones for. */
switch (condition) {
case _XXX_AST_CONTROL_T38:
/* deprecated T.38 control frame */
res = -1;
goto indicate_cleanup;
case AST_CONTROL_T38_PARAMETERS:
/* there is no way to provide 'default' behavior for these
* control frames, so we need to return failure, but there
* is also no value in the log message below being emitted
* since failure to handle these frames is not an 'error'
* so just return right now. in addition, we want to return
* whatever value the channel driver returned, in case it
* has some meaning.*/
goto indicate_cleanup;
case AST_CONTROL_RINGING:
ts = ast_get_indication_tone(chan->zone, "ring");
/* It is common practice for channel drivers to return -1 if trying
* to indicate ringing on a channel which is up. The idea is to let the
* core generate the ringing inband. However, we don't want the
* warning message about not being able to handle the specific indication
* to print nor do we want ast_indicate_data to return an "error" for this
* condition
*/
if (chan->_state == AST_STATE_UP) {
res = 0;
}
break;
case AST_CONTROL_BUSY:
ts = ast_get_indication_tone(chan->zone, "busy");
break;
case AST_CONTROL_INCOMPLETE:
case AST_CONTROL_CONGESTION:
ts = ast_get_indication_tone(chan->zone, "congestion");
break;
case AST_CONTROL_PROGRESS:
case AST_CONTROL_PROCEEDING:
case AST_CONTROL_VIDUPDATE:
case AST_CONTROL_SRCUPDATE:
case AST_CONTROL_SRCCHANGE:
case AST_CONTROL_RADIO_KEY:
case AST_CONTROL_RADIO_UNKEY:
case AST_CONTROL_OPTION:
case AST_CONTROL_WINK:
case AST_CONTROL_FLASH:
case AST_CONTROL_OFFHOOK:
case AST_CONTROL_TAKEOFFHOOK:
case AST_CONTROL_ANSWER:
case AST_CONTROL_HANGUP:
case AST_CONTROL_RING:
case AST_CONTROL_HOLD:
case AST_CONTROL_UNHOLD:
case AST_CONTROL_TRANSFER:
case AST_CONTROL_CONNECTED_LINE:
case AST_CONTROL_REDIRECTING:
case AST_CONTROL_CC:
case AST_CONTROL_READ_ACTION:
case AST_CONTROL_AOC:
case AST_CONTROL_END_OF_Q:
case AST_CONTROL_UPDATE_RTP_PEER:
/* Nothing left to do for these. */
res = 0;
break;
}
if (ts) {
/* We have a tone to play, yay. */
ast_debug(1, "Driver for channel '%s' does not support indication %d, emulating it\n", chan->name, condition);
res = ast_playtones_start(chan, 0, ts->data, 1);
ts = ast_tone_zone_sound_unref(ts);
}
if (res) {
/* not handled */
ast_log(LOG_WARNING, "Unable to handle indication %d for '%s'\n", condition, chan->name);
}
indicate_cleanup:
ast_channel_unlock(chan);
if (awesome_frame) {
ast_frfree(awesome_frame);
}
return res;
}
| int ast_internal_timing_enabled | ( | struct ast_channel * | chan | ) |
Check if the channel can run in internal timing mode.
- Parameters:
-
chan The channel to check
- Returns:
- boolean
This function will return 1 if internal timing is enabled and the timing device is available.
Definition at line 4247 of file channel.c.
References ast_opt_internal_timing, and ast_channel::timingfd.
Referenced by add_sdp(), and ast_read_generator_actions().
{
return (ast_opt_internal_timing && chan->timingfd > -1);
}
| int ast_is_deferrable_frame | ( | const struct ast_frame * | frame | ) |
Should we keep this frame for later?
There are functions such as ast_safe_sleep which will service a channel to ensure that it does not have a large backlog of queued frames. When this happens, we want to hold on to specific frame types and just drop others. This function will tell if the frame we just read should be held onto.
- Parameters:
-
frame The frame we just read
- Return values:
-
1 frame should be kept 0 frame should be dropped
Definition at line 1779 of file channel.c.
References AST_FRAME_CNG, AST_FRAME_CONTROL, AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, AST_FRAME_HTML, AST_FRAME_IAX, AST_FRAME_IMAGE, AST_FRAME_MODEM, AST_FRAME_NULL, AST_FRAME_TEXT, AST_FRAME_VIDEO, AST_FRAME_VOICE, and ast_frame::frametype.
Referenced by ast_safe_sleep_conditional(), autoservice_run(), and feature_request_and_dial().
{
/* Do not add a default entry in this switch statement. Each new
* frame type should be addressed directly as to whether it should
* be queued up or not.
*/
switch (frame->frametype) {
case AST_FRAME_CONTROL:
case AST_FRAME_TEXT:
case AST_FRAME_IMAGE:
case AST_FRAME_HTML:
return 1;
case AST_FRAME_DTMF_END:
case AST_FRAME_DTMF_BEGIN:
case AST_FRAME_VOICE:
case AST_FRAME_VIDEO:
case AST_FRAME_NULL:
case AST_FRAME_IAX:
case AST_FRAME_CNG:
case AST_FRAME_MODEM:
return 0;
}
return 0;
}
| void ast_party_caller_copy | ( | struct ast_party_caller * | dest, |
| const struct ast_party_caller * | src | ||
| ) |
Copy the source caller information to the destination caller.
- Since:
- 1.8
- Parameters:
-
dest Destination caller src Source caller
- Returns:
- Nothing
Definition at line 2230 of file channel.c.
References ast_party_caller::ani, ast_party_caller::ani2, ast_party_id_copy(), and ast_party_caller::id.
Referenced by wait_for_answer().
{
if (dest == src) {
/* Don't copy to self */
return;
}
ast_party_id_copy(&dest->id, &src->id);
ast_party_id_copy(&dest->ani, &src->ani);
dest->ani2 = src->ani2;
}
| void ast_party_caller_free | ( | struct ast_party_caller * | doomed | ) |
Destroy the caller party contents.
- Since:
- 1.8
- Parameters:
-
doomed The caller party to destroy.
- Returns:
- Nothing
Definition at line 2256 of file channel.c.
References ast_party_caller::ani, ast_party_id_free(), and ast_party_caller::id.
Referenced by ast_channel_destructor(), ast_dummy_channel_destructor(), callerid_write(), dial_trunk(), and sla_ring_station().
{
ast_party_id_free(&doomed->id);
ast_party_id_free(&doomed->ani);
}
| void ast_party_caller_init | ( | struct ast_party_caller * | init | ) |
Initialize the given caller structure.
- Since:
- 1.8
- Parameters:
-
init Caller structure to initialize.
- Returns:
- Nothing
Definition at line 2223 of file channel.c.
References ast_party_caller::ani, ast_party_caller::ani2, ast_party_id_init(), and ast_party_caller::id.
Referenced by __ast_channel_alloc_ap(), dial_trunk(), sig_pri_set_caller_id(), sig_ss7_set_caller_id(), and sla_ring_station().
{
ast_party_id_init(&init->id);
ast_party_id_init(&init->ani);
init->ani2 = 0;
}
| void ast_party_caller_set | ( | struct ast_party_caller * | dest, |
| const struct ast_party_caller * | src, | ||
| const struct ast_set_party_caller * | update | ||
| ) |
Set the caller information based on another caller source.
- Since:
- 1.8
This is similar to ast_party_caller_copy, except that NULL values for strings in the src parameter indicate not to update the corresponding dest values.
- Parameters:
-
dest The caller one wishes to update src The new caller values to update the dest update What caller information to update. NULL if all.
- Returns:
- Nada
Definition at line 2249 of file channel.c.
References ast_party_caller::ani, ast_set_party_caller::ani, ast_party_caller::ani2, ast_party_id_set(), ast_party_caller::id, and ast_set_party_caller::id.
Referenced by ast_channel_set_caller(), ast_channel_set_caller_event(), and callerid_write().
{
ast_party_id_set(&dest->id, &src->id, update ? &update->id : NULL);
ast_party_id_set(&dest->ani, &src->ani, update ? &update->ani : NULL);
dest->ani2 = src->ani2;
}
| void ast_party_caller_set_init | ( | struct ast_party_caller * | init, |
| const struct ast_party_caller * | guide | ||
| ) |
Initialize the given caller structure using the given guide for a set update operation.
- Since:
- 1.8
The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.
- Parameters:
-
init Caller structure to initialize. guide Source caller to use as a guide in initializing.
- Returns:
- Nothing
Definition at line 2242 of file channel.c.
References ast_party_caller::ani, ast_party_caller::ani2, ast_party_id_set_init(), and ast_party_caller::id.
Referenced by callerid_write(), dial_exec_full(), do_forward(), misdn_update_caller_id(), ring_entry(), and sig_pri_handle_subcmds().
{
ast_party_id_set_init(&init->id, &guide->id);
ast_party_id_set_init(&init->ani, &guide->ani);
init->ani2 = guide->ani2;
}
| void ast_party_connected_line_collect_caller | ( | struct ast_party_connected_line * | connected, |
| struct ast_party_caller * | caller | ||
| ) |
Collect the caller party information into a connected line structure.
- Since:
- 1.8
- Parameters:
-
connected Collected caller information for the connected line caller Caller information.
- Returns:
- Nothing
- Warning:
- This is a shallow copy.
- DO NOT call ast_party_connected_line_free() on the filled in connected line structure!
Definition at line 2299 of file channel.c.
References ast_party_caller::ani, ast_party_connected_line::ani, ast_party_caller::ani2, ast_party_connected_line::ani2, AST_CONNECTED_LINE_UPDATE_SOURCE_UNKNOWN, ast_party_caller::id, ast_party_connected_line::id, and ast_party_connected_line::source.
| void ast_party_connected_line_copy | ( | struct ast_party_connected_line * | dest, |
| const struct ast_party_connected_line * | src | ||
| ) |
Copy the source connected line information to the destination connected line.
- Since:
- 1.8
- Parameters:
-
dest Destination connected line src Source connected line
- Returns:
- Nothing
Definition at line 2270 of file channel.c.
References ast_party_connected_line::ani, ast_party_connected_line::ani2, ast_party_id_copy(), ast_party_connected_line::id, and ast_party_connected_line::source.
Referenced by __ast_read(), ast_call_forward(), ast_channel_connected_line_macro(), ast_do_pickup(), builtin_atxfer(), dial_exec_full(), do_forward(), local_attended_transfer(), misdn_attempt_transfer(), party_connected_line_copy_transfer(), try_calling(), and wait_for_answer().
{
if (dest == src) {
/* Don't copy to self */
return;
}
ast_party_id_copy(&dest->id, &src->id);
ast_party_id_copy(&dest->ani, &src->ani);
dest->ani2 = src->ani2;
dest->source = src->source;
}
| void ast_party_connected_line_free | ( | struct ast_party_connected_line * | doomed | ) |
Destroy the connected line information contents.
- Since:
- 1.8
- Parameters:
-
doomed The connected line information to destroy.
- Returns:
- Nothing
Definition at line 2307 of file channel.c.
References ast_party_connected_line::ani, ast_party_id_free(), and ast_party_connected_line::id.
Referenced by __ast_read(), ast_channel_destructor(), ast_do_pickup(), ast_dummy_channel_destructor(), ast_indicate_data(), atxfer_fail_cleanup(), builtin_atxfer(), callattempt_free(), chanlist_free(), connectedline_write(), feature_request_and_dial(), local_attended_transfer(), misdn_attempt_transfer(), parked_call_exec(), sig_pri_handle_subcmds(), socket_process(), wait_for_answer(), and xfer_ds_destroy().
{
ast_party_id_free(&doomed->id);
ast_party_id_free(&doomed->ani);
}
| void ast_party_connected_line_init | ( | struct ast_party_connected_line * | init | ) |
Initialize the given connected line structure.
- Since:
- 1.8
- Parameters:
-
init Connected line structure to initialize.
- Returns:
- Nothing
Definition at line 2262 of file channel.c.
References ast_party_connected_line::ani, ast_party_connected_line::ani2, AST_CONNECTED_LINE_UPDATE_SOURCE_UNKNOWN, ast_party_id_init(), ast_party_connected_line::id, and ast_party_connected_line::source.
Referenced by __ast_channel_alloc_ap(), __ast_read(), ast_do_pickup(), builtin_atxfer(), do_forward(), handle_request_invite(), handle_request_update(), handle_response_invite(), local_attended_transfer(), misdn_attempt_transfer(), misdn_queue_connected_line_update(), parked_call_exec(), sig_pri_handle_subcmds(), sip_call(), socket_process(), and wait_for_answer().
{
ast_party_id_init(&init->id);
ast_party_id_init(&init->ani);
init->ani2 = 0;
init->source = AST_CONNECTED_LINE_UPDATE_SOURCE_UNKNOWN;
}
| void ast_party_connected_line_set | ( | struct ast_party_connected_line * | dest, |
| const struct ast_party_connected_line * | src, | ||
| const struct ast_set_party_connected_line * | update | ||
| ) |
Set the connected line information based on another connected line source.
- Since:
- 1.8 This is similar to ast_party_connected_line_copy, except that NULL values for strings in the src parameter indicate not to update the corresponding dest values.
- Parameters:
-
dest The connected line one wishes to update src The new connected line values to update the dest update What connected line information to update. NULL if all.
- Returns:
- Nothing
Definition at line 2291 of file channel.c.
References ast_party_connected_line::ani, ast_set_party_connected_line::ani, ast_party_connected_line::ani2, ast_party_id_set(), ast_party_connected_line::id, ast_set_party_connected_line::id, and ast_party_connected_line::source.
Referenced by ast_channel_set_connected_line(), and wait_for_answer().
| void ast_party_connected_line_set_init | ( | struct ast_party_connected_line * | init, |
| const struct ast_party_connected_line * | guide | ||
| ) |
Initialize the given connected line structure using the given guide for a set update operation.
- Since:
- 1.8
The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.
- Parameters:
-
init Connected line structure to initialize. guide Source connected line to use as a guide in initializing.
- Returns:
- Nothing
Definition at line 2283 of file channel.c.
References ast_party_connected_line::ani, ast_party_connected_line::ani2, ast_party_id_set_init(), ast_party_connected_line::id, and ast_party_connected_line::source.
Referenced by __ast_request_and_dial(), ast_indicate_data(), connectedline_write(), dial_exec_full(), feature_request_and_dial(), and wait_for_answer().
{
ast_party_id_set_init(&init->id, &guide->id);
ast_party_id_set_init(&init->ani, &guide->ani);
init->ani2 = guide->ani2;
init->source = guide->source;
}
| void ast_party_dialed_copy | ( | struct ast_party_dialed * | dest, |
| const struct ast_party_dialed * | src | ||
| ) |
Copy the source dialed party information to the destination dialed party.
- Since:
- 1.8
- Parameters:
-
dest Destination dialed party src Source dialed party
- Returns:
- Nothing
Definition at line 2181 of file channel.c.
References ast_free, ast_party_subaddress_copy(), ast_strdup, ast_party_dialed::number, ast_party_dialed::plan, ast_party_dialed::str, ast_party_dialed::subaddress, and ast_party_dialed::transit_network_select.
Referenced by local_call().
{
if (dest == src) {
/* Don't copy to self */
return;
}
ast_free(dest->number.str);
dest->number.str = ast_strdup(src->number.str);
dest->number.plan = src->number.plan;
ast_party_subaddress_copy(&dest->subaddress, &src->subaddress);
dest->transit_network_select = src->transit_network_select;
}
| void ast_party_dialed_free | ( | struct ast_party_dialed * | doomed | ) |
Destroy the dialed party contents.
- Since:
- 1.8
- Parameters:
-
doomed The dialed party to destroy.
- Returns:
- Nothing
Definition at line 2216 of file channel.c.
References ast_free, ast_party_subaddress_free(), ast_party_dialed::number, ast_party_dialed::str, and ast_party_dialed::subaddress.
Referenced by ast_channel_destructor(), ast_dummy_channel_destructor(), and callerid_write().
{
ast_free(doomed->number.str);
doomed->number.str = NULL;
ast_party_subaddress_free(&doomed->subaddress);
}
| void ast_party_dialed_init | ( | struct ast_party_dialed * | init | ) |
Initialize the given dialed structure.
- Since:
- 1.8
- Parameters:
-
init Dialed structure to initialize.
- Returns:
- Nothing
Definition at line 2173 of file channel.c.
References ast_party_subaddress_init(), ast_party_dialed::number, ast_party_dialed::plan, ast_party_dialed::str, ast_party_dialed::subaddress, and ast_party_dialed::transit_network_select.
Referenced by __ast_channel_alloc_ap().
{
init->number.str = NULL;
init->number.plan = 0;/* Unknown */
ast_party_subaddress_init(&init->subaddress);
init->transit_network_select = 0;
}
| void ast_party_dialed_set | ( | struct ast_party_dialed * | dest, |
| const struct ast_party_dialed * | src | ||
| ) |
Set the dialed information based on another dialed source.
- Since:
- 1.8
This is similar to ast_party_dialed_copy, except that NULL values for strings in the src parameter indicate not to update the corresponding dest values.
- Parameters:
-
dest The dialed one wishes to update src The new dialed values to update the dest
- Returns:
- Nada
Definition at line 2203 of file channel.c.
References ast_free, ast_party_subaddress_set(), ast_strdup, ast_party_dialed::number, ast_party_dialed::plan, ast_party_dialed::str, ast_party_dialed::subaddress, and ast_party_dialed::transit_network_select.
Referenced by callerid_write().
{
if (src->number.str && src->number.str != dest->number.str) {
ast_free(dest->number.str);
dest->number.str = ast_strdup(src->number.str);
}
dest->number.plan = src->number.plan;
ast_party_subaddress_set(&dest->subaddress, &src->subaddress);
dest->transit_network_select = src->transit_network_select;
}
| void ast_party_dialed_set_init | ( | struct ast_party_dialed * | init, |
| const struct ast_party_dialed * | guide | ||
| ) |
Initialize the given dialed structure using the given guide for a set update operation.
- Since:
- 1.8
The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.
- Parameters:
-
init Caller structure to initialize. guide Source dialed to use as a guide in initializing.
- Returns:
- Nothing
Definition at line 2195 of file channel.c.
References ast_party_subaddress_set_init(), ast_party_dialed::number, ast_party_dialed::plan, ast_party_dialed::str, ast_party_dialed::subaddress, and ast_party_dialed::transit_network_select.
Referenced by callerid_write().
{
init->number.str = NULL;
init->number.plan = guide->number.plan;
ast_party_subaddress_set_init(&init->subaddress, &guide->subaddress);
init->transit_network_select = guide->transit_network_select;
}
| void ast_party_id_copy | ( | struct ast_party_id * | dest, |
| const struct ast_party_id * | src | ||
| ) |
Copy the source party id information to the destination party id.
- Since:
- 1.8
- Parameters:
-
dest Destination party id src Source party id
- Returns:
- Nothing
Definition at line 2052 of file channel.c.
References ast_free, ast_party_name_copy(), ast_party_number_copy(), ast_party_subaddress_copy(), ast_strdup, ast_party_id::name, ast_party_id::number, ast_party_id::subaddress, and ast_party_id::tag.
Referenced by ast_connected_line_copy_from_caller(), ast_connected_line_copy_to_caller(), ast_party_caller_copy(), ast_party_connected_line_copy(), ast_party_redirecting_copy(), and parkandannounce_exec().
{
if (dest == src) {
/* Don't copy to self */
return;
}
ast_party_name_copy(&dest->name, &src->name);
ast_party_number_copy(&dest->number, &src->number);
ast_party_subaddress_copy(&dest->subaddress, &src->subaddress);
ast_free(dest->tag);
dest->tag = ast_strdup(src->tag);
}
| void ast_party_id_free | ( | struct ast_party_id * | doomed | ) |
Destroy the party id contents.
- Since:
- 1.8
- Parameters:
-
doomed The party id to destroy.
- Returns:
- Nothing
Definition at line 2098 of file channel.c.
References ast_free, ast_party_name_free(), ast_party_number_free(), ast_party_subaddress_free(), ast_party_id::name, ast_party_id::number, ast_party_id::subaddress, and ast_party_id::tag.
Referenced by ast_party_caller_free(), ast_party_connected_line_free(), ast_party_redirecting_free(), parkandannounce_exec(), and sig_pri_mcid_event().
{
ast_party_name_free(&doomed->name);
ast_party_number_free(&doomed->number);
ast_party_subaddress_free(&doomed->subaddress);
ast_free(doomed->tag);
doomed->tag = NULL;
}
| void ast_party_id_init | ( | struct ast_party_id * | init | ) |
Initialize the given party id structure.
- Since:
- 1.8
- Parameters:
-
init Party id structure to initialize.
- Returns:
- Nothing
Definition at line 2044 of file channel.c.
References ast_party_name_init(), ast_party_number_init(), ast_party_subaddress_init(), ast_party_id::name, ast_party_id::number, ast_party_id::subaddress, and ast_party_id::tag.
Referenced by ast_party_caller_init(), ast_party_connected_line_init(), ast_party_redirecting_init(), dial_exec_full(), and sig_pri_mcid_event().
{
ast_party_name_init(&init->name);
ast_party_number_init(&init->number);
ast_party_subaddress_init(&init->subaddress);
init->tag = NULL;
}
| int ast_party_id_presentation | ( | const struct ast_party_id * | id | ) |
Determine the overall presentation value for the given party.
- Since:
- 1.8
- Parameters:
-
id Party to determine the overall presentation value.
- Returns:
- Overall presentation value for the given party.
Definition at line 2108 of file channel.c.
References AST_PRES_ALLOWED, AST_PRES_NUMBER_TYPE, AST_PRES_RESTRICTED, AST_PRES_RESTRICTION, AST_PRES_UNAVAILABLE, AST_PRES_USER_NUMBER_UNSCREENED, ast_party_id::name, ast_party_id::number, ast_party_name::valid, and ast_party_number::valid.
Referenced by add_rpid(), ast_str_retrieve_variable(), ast_var_channels_table(), callerpres_read(), iax2_call(), initreqprep(), my_set_callerid(), oh323_call(), party_id_build_data(), party_id_read(), redirecting_read(), report_new_callerid(), setup_env(), sig_pri_event_party_id(), sig_pri_handle_subcmds(), sip_call(), and socket_process().
{
int number_priority;
int number_value;
int number_screening;
int name_priority;
int name_value;
/* Determine name presentation priority. */
if (!id->name.valid) {
name_value = AST_PRES_UNAVAILABLE;
name_priority = 3;
} else {
name_value = id->name.presentation & AST_PRES_RESTRICTION;
switch (name_value) {
case AST_PRES_RESTRICTED:
name_priority = 0;
break;
case AST_PRES_ALLOWED:
name_priority = 1;
break;
case AST_PRES_UNAVAILABLE:
name_priority = 2;
break;
default:
name_value = AST_PRES_UNAVAILABLE;
name_priority = 3;
break;
}
}
/* Determine number presentation priority. */
if (!id->number.valid) {
number_screening = AST_PRES_USER_NUMBER_UNSCREENED;
number_value = AST_PRES_UNAVAILABLE;
number_priority = 3;
} else {
number_screening = id->number.presentation & AST_PRES_NUMBER_TYPE;
number_value = id->number.presentation & AST_PRES_RESTRICTION;
switch (number_value) {
case AST_PRES_RESTRICTED:
number_priority = 0;
break;
case AST_PRES_ALLOWED:
number_priority = 1;
break;
case AST_PRES_UNAVAILABLE:
number_priority = 2;
break;
default:
number_screening = AST_PRES_USER_NUMBER_UNSCREENED;
number_value = AST_PRES_UNAVAILABLE;
number_priority = 3;
break;
}
}
/* Select the wining presentation value. */
if (name_priority < number_priority) {
number_value = name_value;
}
return number_value | number_screening;
}
| void ast_party_id_set | ( | struct ast_party_id * | dest, |
| const struct ast_party_id * | src, | ||
| const struct ast_set_party_id * | update | ||
| ) |
Set the source party id information into the destination party id.
- Since:
- 1.8
- Parameters:
-
dest The id one wishes to update src The new id values to update the dest update What id information to update. NULL if all.
- Returns:
- Nothing
Definition at line 2075 of file channel.c.
References ast_free, ast_party_name_set(), ast_party_number_set(), ast_party_subaddress_set(), ast_strdup, ast_party_id::name, ast_set_party_id::name, ast_party_id::number, ast_set_party_id::number, ast_party_id::subaddress, ast_set_party_id::subaddress, and ast_party_id::tag.
Referenced by ast_party_caller_set(), ast_party_connected_line_set(), and ast_party_redirecting_set().
{
if (dest == src) {
/* Don't set to self */
return;
}
if (!update || update->name) {
ast_party_name_set(&dest->name, &src->name);
}
if (!update || update->number) {
ast_party_number_set(&dest->number, &src->number);
}
if (!update || update->subaddress) {
ast_party_subaddress_set(&dest->subaddress, &src->subaddress);
}
if (src->tag && src->tag != dest->tag) {
ast_free(dest->tag);
dest->tag = ast_strdup(src->tag);
}
}
| void ast_party_id_set_init | ( | struct ast_party_id * | init, |
| const struct ast_party_id * | guide | ||
| ) |
Initialize the given party id structure using the given guide for a set update operation.
- Since:
- 1.8
The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.
- Parameters:
-
init Party id structure to initialize. guide Source party id to use as a guide in initializing.
- Returns:
- Nothing
Definition at line 2067 of file channel.c.
References ast_party_name_set_init(), ast_party_number_set_init(), ast_party_subaddress_set_init(), ast_party_id::name, ast_party_id::number, ast_party_id::subaddress, and ast_party_id::tag.
Referenced by ast_party_caller_set_init(), ast_party_connected_line_set_init(), ast_party_redirecting_set_init(), and dial_exec_full().
{
ast_party_name_set_init(&init->name, &guide->name);
ast_party_number_set_init(&init->number, &guide->number);
ast_party_subaddress_set_init(&init->subaddress, &guide->subaddress);
init->tag = NULL;
}
| void ast_party_name_copy | ( | struct ast_party_name * | dest, |
| const struct ast_party_name * | src | ||
| ) |
Copy the source party name information to the destination party name.
- Since:
- 1.8
- Parameters:
-
dest Destination party name src Source party name
- Returns:
- Nothing
Definition at line 1893 of file channel.c.
References ast_free, ast_strdup, ast_party_name::char_set, ast_party_name::presentation, ast_party_name::str, and ast_party_name::valid.
Referenced by ast_party_id_copy().
{
if (dest == src) {
/* Don't copy to self */
return;
}
ast_free(dest->str);
dest->str = ast_strdup(src->str);
dest->char_set = src->char_set;
dest->presentation = src->presentation;
dest->valid = src->valid;
}
| void ast_party_name_free | ( | struct ast_party_name * | doomed | ) |
Destroy the party name contents.
- Since:
- 1.8
- Parameters:
-
doomed The party name to destroy.
- Returns:
- Nothing
Definition at line 1932 of file channel.c.
References ast_free, and ast_party_name::str.
Referenced by __analog_ss_thread(), analog_ss_thread(), ast_party_id_free(), and skinny_newcall().
| void ast_party_name_init | ( | struct ast_party_name * | init | ) |
Initialize the given name structure.
- Since:
- 1.8
- Parameters:
-
init Name structure to initialize.
- Returns:
- Nothing
Definition at line 1885 of file channel.c.
References AST_PARTY_CHAR_SET_ISO8859_1, AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED, ast_party_name::char_set, ast_party_name::presentation, ast_party_name::str, and ast_party_name::valid.
Referenced by __analog_ss_thread(), analog_ss_thread(), ast_party_id_init(), and skinny_newcall().
{
init->str = NULL;
init->char_set = AST_PARTY_CHAR_SET_ISO8859_1;
init->presentation = AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
init->valid = 0;
}
| void ast_party_name_set | ( | struct ast_party_name * | dest, |
| const struct ast_party_name * | src | ||
| ) |
Set the source party name information into the destination party name.
- Since:
- 1.8
- Parameters:
-
dest The name one wishes to update src The new name values to update the dest
- Returns:
- Nothing
Definition at line 1915 of file channel.c.
References ast_free, ast_strdup, ast_party_name::char_set, ast_party_name::presentation, ast_party_name::str, and ast_party_name::valid.
Referenced by ast_party_id_set().
{
if (dest == src) {
/* Don't set to self */
return;
}
if (src->str && src->str != dest->str) {
ast_free(dest->str);
dest->str = ast_strdup(src->str);
}
dest->char_set = src->char_set;
dest->presentation = src->presentation;
dest->valid = src->valid;
}
| void ast_party_name_set_init | ( | struct ast_party_name * | init, |
| const struct ast_party_name * | guide | ||
| ) |
Initialize the given party name structure using the given guide for a set update operation.
- Since:
- 1.8
The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.
- Parameters:
-
init Party name structure to initialize. guide Source party name to use as a guide in initializing.
- Returns:
- Nothing
Definition at line 1907 of file channel.c.
References ast_party_name::char_set, ast_party_name::presentation, ast_party_name::str, and ast_party_name::valid.
Referenced by ast_party_id_set_init().
{
init->str = NULL;
init->char_set = guide->char_set;
init->presentation = guide->presentation;
init->valid = guide->valid;
}
| void ast_party_number_copy | ( | struct ast_party_number * | dest, |
| const struct ast_party_number * | src | ||
| ) |
Copy the source party number information to the destination party number.
- Since:
- 1.8
- Parameters:
-
dest Destination party number src Source party number
- Returns:
- Nothing
Definition at line 1946 of file channel.c.
References ast_free, ast_strdup, ast_party_number::plan, ast_party_number::presentation, ast_party_number::str, and ast_party_number::valid.
Referenced by ast_party_id_copy().
{
if (dest == src) {
/* Don't copy to self */
return;
}
ast_free(dest->str);
dest->str = ast_strdup(src->str);
dest->plan = src->plan;
dest->presentation = src->presentation;
dest->valid = src->valid;
}
| void ast_party_number_free | ( | struct ast_party_number * | doomed | ) |
Destroy the party number contents.
- Since:
- 1.8
- Parameters:
-
doomed The party number to destroy.
- Returns:
- Nothing
Definition at line 1985 of file channel.c.
References ast_free, and ast_party_number::str.
Referenced by __analog_ss_thread(), analog_ss_thread(), ast_party_id_free(), do_forward(), skinny_newcall(), and wait_for_answer().
| void ast_party_number_init | ( | struct ast_party_number * | init | ) |
Initialize the given number structure.
- Since:
- 1.8
- Parameters:
-
init Number structure to initialize.
- Returns:
- Nothing
Definition at line 1938 of file channel.c.
References AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED, ast_party_number::plan, ast_party_number::presentation, ast_party_number::str, and ast_party_number::valid.
Referenced by __analog_ss_thread(), analog_ss_thread(), ast_party_id_init(), do_forward(), skinny_newcall(), and wait_for_answer().
{
init->str = NULL;
init->plan = 0;/* Unknown */
init->presentation = AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
init->valid = 0;
}
| void ast_party_number_set | ( | struct ast_party_number * | dest, |
| const struct ast_party_number * | src | ||
| ) |
Set the source party number information into the destination party number.
- Since:
- 1.8
- Parameters:
-
dest The number one wishes to update src The new number values to update the dest
- Returns:
- Nothing
Definition at line 1968 of file channel.c.
References ast_free, ast_strdup, ast_party_number::plan, ast_party_number::presentation, ast_party_number::str, and ast_party_number::valid.
Referenced by ast_party_id_set().
{
if (dest == src) {
/* Don't set to self */
return;
}
if (src->str && src->str != dest->str) {
ast_free(dest->str);
dest->str = ast_strdup(src->str);
}
dest->plan = src->plan;
dest->presentation = src->presentation;
dest->valid = src->valid;
}
| void ast_party_number_set_init | ( | struct ast_party_number * | init, |
| const struct ast_party_number * | guide | ||
| ) |
Initialize the given party number structure using the given guide for a set update operation.
- Since:
- 1.8
The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.
- Parameters:
-
init Party number structure to initialize. guide Source party number to use as a guide in initializing.
- Returns:
- Nothing
Definition at line 1960 of file channel.c.
References ast_party_number::plan, ast_party_number::presentation, ast_party_number::str, and ast_party_number::valid.
Referenced by ast_party_id_set_init().
{
init->str = NULL;
init->plan = guide->plan;
init->presentation = guide->presentation;
init->valid = guide->valid;
}
| void ast_party_redirecting_copy | ( | struct ast_party_redirecting * | dest, |
| const struct ast_party_redirecting * | src | ||
| ) |
Copy the source redirecting information to the destination redirecting.
- Since:
- 1.8
- Parameters:
-
dest Destination redirecting src Source redirecting
- Returns:
- Nothing
Definition at line 2321 of file channel.c.
References ast_party_id_copy(), ast_party_redirecting::count, ast_party_redirecting::from, ast_party_redirecting::reason, and ast_party_redirecting::to.
Referenced by ast_call_forward(), ast_channel_redirecting_macro(), begin_dial_channel(), call_forward_inherit(), dial_exec_full(), do_forward(), local_call(), ring_entry(), and wait_for_answer().
{
if (dest == src) {
/* Don't copy to self */
return;
}
ast_party_id_copy(&dest->from, &src->from);
ast_party_id_copy(&dest->to, &src->to);
dest->count = src->count;
dest->reason = src->reason;
}
| void ast_party_redirecting_free | ( | struct ast_party_redirecting * | doomed | ) |
Destroy the redirecting information contents.
- Since:
- 1.8
- Parameters:
-
doomed The redirecting information to destroy.
- Returns:
- Nothing
Definition at line 2350 of file channel.c.
References ast_party_id_free(), ast_party_redirecting::from, and ast_party_redirecting::to.
Referenced by ast_channel_destructor(), ast_dummy_channel_destructor(), ast_indicate_data(), call_forward_inherit(), do_forward(), handle_request_invite(), handle_response(), handle_response_invite(), redirecting_write(), sig_pri_handle_subcmds(), and wait_for_answer().
{
ast_party_id_free(&doomed->from);
ast_party_id_free(&doomed->to);
}
| void ast_party_redirecting_init | ( | struct ast_party_redirecting * | init | ) |
Initialize the given redirecting structure.
- Since:
- 1.8
- Parameters:
-
init Redirecting structure to initialize.
- Returns:
- Nothing
Definition at line 2313 of file channel.c.
References ast_party_id_init(), AST_REDIRECTING_REASON_UNKNOWN, ast_party_redirecting::count, ast_party_redirecting::from, ast_party_redirecting::reason, and ast_party_redirecting::to.
Referenced by __ast_channel_alloc_ap(), call_forward_inherit(), do_forward(), handle_request_invite(), handle_response(), handle_response_invite(), and wait_for_answer().
{
ast_party_id_init(&init->from);
ast_party_id_init(&init->to);
init->count = 0;
init->reason = AST_REDIRECTING_REASON_UNKNOWN;
}
| void ast_party_redirecting_set | ( | struct ast_party_redirecting * | dest, |
| const struct ast_party_redirecting * | src, | ||
| const struct ast_set_party_redirecting * | update | ||
| ) |
Set the redirecting information based on another redirecting source.
- Since:
- 1.8
This is similar to ast_party_redirecting_copy, except that NULL values for strings in the src parameter indicate not to update the corresponding dest values.
- Parameters:
-
dest The redirecting one wishes to update src The new redirecting values to update the dest update What redirecting information to update. NULL if all.
- Returns:
- Nothing
Definition at line 2342 of file channel.c.
References ast_party_id_set(), ast_party_redirecting::count, ast_party_redirecting::from, ast_set_party_redirecting::from, ast_party_redirecting::reason, ast_party_redirecting::to, and ast_set_party_redirecting::to.
Referenced by ast_channel_set_redirecting().
| void ast_party_redirecting_set_init | ( | struct ast_party_redirecting * | init, |
| const struct ast_party_redirecting * | guide | ||
| ) |
Initialize the given redirecting id structure using the given guide for a set update operation.
- Since:
- 1.8
The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.
- Parameters:
-
init Redirecting id structure to initialize. guide Source redirecting id to use as a guide in initializing.
- Returns:
- Nothing
Definition at line 2334 of file channel.c.
References ast_party_id_set_init(), ast_party_redirecting::count, ast_party_redirecting::from, ast_party_redirecting::reason, and ast_party_redirecting::to.
Referenced by ast_indicate_data(), misdn_copy_redirecting_to_ast(), redirecting_write(), and sig_pri_redirecting_convert().
{
ast_party_id_set_init(&init->from, &guide->from);
ast_party_id_set_init(&init->to, &guide->to);
init->count = guide->count;
init->reason = guide->reason;
}
| void ast_party_subaddress_copy | ( | struct ast_party_subaddress * | dest, |
| const struct ast_party_subaddress * | src | ||
| ) |
Copy the source party subaddress information to the destination party subaddress.
- Since:
- 1.8
- Parameters:
-
dest Destination party subaddress src Source party subaddress
- Returns:
- Nothing
Definition at line 1999 of file channel.c.
References ast_free, ast_strdup, ast_party_subaddress::odd_even_indicator, ast_party_subaddress::str, ast_party_subaddress::type, and ast_party_subaddress::valid.
Referenced by ast_party_dialed_copy(), and ast_party_id_copy().
{
if (dest == src) {
/* Don't copy to self */
return;
}
ast_free(dest->str);
dest->str = ast_strdup(src->str);
dest->type = src->type;
dest->odd_even_indicator = src->odd_even_indicator;
dest->valid = src->valid;
}
| void ast_party_subaddress_free | ( | struct ast_party_subaddress * | doomed | ) |
Destroy the party subaddress contents.
- Since:
- 1.8
- Parameters:
-
doomed The party subaddress to destroy.
- Returns:
- Nothing
Definition at line 2038 of file channel.c.
References ast_free, and ast_party_subaddress::str.
Referenced by ast_party_dialed_free(), ast_party_id_free(), and pri_dchannel().
| void ast_party_subaddress_init | ( | struct ast_party_subaddress * | init | ) |
Initialize the given subaddress structure.
- Since:
- 1.8
- Parameters:
-
init Subaddress structure to initialize.
- Returns:
- Nothing
Definition at line 1991 of file channel.c.
References ast_party_subaddress::odd_even_indicator, ast_party_subaddress::str, ast_party_subaddress::type, and ast_party_subaddress::valid.
Referenced by ast_party_dialed_init(), ast_party_id_init(), pri_dchannel(), sig_pri_call(), and sig_pri_set_subaddress().
{
init->str = NULL;
init->type = 0;
init->odd_even_indicator = 0;
init->valid = 0;
}
| void ast_party_subaddress_set | ( | struct ast_party_subaddress * | dest, |
| const struct ast_party_subaddress * | src | ||
| ) |
Set the source party subaddress information into the destination party subaddress.
- Since:
- 1.8
- Parameters:
-
dest The subaddress one wishes to update src The new subaddress values to update the dest
- Returns:
- Nothing
Definition at line 2021 of file channel.c.
References ast_free, ast_strdup, ast_party_subaddress::odd_even_indicator, ast_party_subaddress::str, ast_party_subaddress::type, and ast_party_subaddress::valid.
Referenced by ast_party_dialed_set(), ast_party_id_set(), and sig_pri_handle_subcmds().
{
if (dest == src) {
/* Don't set to self */
return;
}
if (src->str && src->str != dest->str) {
ast_free(dest->str);
dest->str = ast_strdup(src->str);
}
dest->type = src->type;
dest->odd_even_indicator = src->odd_even_indicator;
dest->valid = src->valid;
}
| void ast_party_subaddress_set_init | ( | struct ast_party_subaddress * | init, |
| const struct ast_party_subaddress * | guide | ||
| ) |
Initialize the given party subaddress structure using the given guide for a set update operation.
- Since:
- 1.8
The initialization is needed to allow a set operation to know if a value needs to be updated. Simple integers need the guide's original value in case the set operation is not trying to set a new value. String values are simply set to NULL pointers if they are not going to be updated.
- Parameters:
-
init Party subaddress structure to initialize. guide Source party subaddress to use as a guide in initializing.
- Returns:
- Nothing
Definition at line 2013 of file channel.c.
References ast_party_subaddress::odd_even_indicator, ast_party_subaddress::str, ast_party_subaddress::type, and ast_party_subaddress::valid.
Referenced by ast_party_dialed_set_init(), and ast_party_id_set_init().
{
init->str = NULL;
init->type = guide->type;
init->odd_even_indicator = guide->odd_even_indicator;
init->valid = guide->valid;
}
| void ast_poll_channel_add | ( | struct ast_channel * | chan0, |
| struct ast_channel * | chan1 | ||
| ) |
Add a channel to an optimized waitfor
Definition at line 2610 of file channel.c.
References AST_MAX_FDS, and ast_channel::fds.
Referenced by ast_generic_bridge(), begin_dial_channel(), feature_request_and_dial(), local_bridge_loop(), remote_bridge_loop(), and wait_for_answer().
{
#ifdef HAVE_EPOLL
struct epoll_event ev;
int i = 0;
if (chan0->epfd == -1)
return;
/* Iterate through the file descriptors on chan1, adding them to chan0 */
for (i = 0; i < AST_MAX_FDS; i++) {
if (chan1->fds[i] == -1)
continue;
ev.events = EPOLLIN | EPOLLPRI | EPOLLERR | EPOLLHUP;
ev.data.ptr = chan1->epfd_data[i];
epoll_ctl(chan0->epfd, EPOLL_CTL_ADD, chan1->fds[i], &ev);
}
#endif
return;
}
| void ast_poll_channel_del | ( | struct ast_channel * | chan0, |
| struct ast_channel * | chan1 | ||
| ) |
Delete a channel from an optimized waitfor
Definition at line 2633 of file channel.c.
References AST_MAX_FDS, and ast_channel::fds.
Referenced by ast_generic_bridge(), feature_request_and_dial(), local_bridge_loop(), monitor_dial(), remote_bridge_loop(), and wait_for_answer().
{
#ifdef HAVE_EPOLL
struct epoll_event ev;
int i = 0;
if (chan0->epfd == -1)
return;
for (i = 0; i < AST_MAX_FDS; i++) {
if (chan1->fds[i] == -1)
continue;
epoll_ctl(chan0->epfd, EPOLL_CTL_DEL, chan1->fds[i], &ev);
}
#endif
return;
}
| char* ast_print_group | ( | char * | buf, |
| int | buflen, | ||
| ast_group_t | group | ||
| ) |
print call- and pickup groups into buffer
Definition at line 7953 of file channel.c.
References first.
Referenced by _sip_show_peer(), _skinny_show_line(), func_channel_read(), function_sippeer(), misdn_cfg_get_config_string(), print_group(), read_config(), and serialize_showchan().
{
unsigned int i;
int first = 1;
char num[3];
buf[0] = '\0';
if (!group) /* Return empty string if no group */
return buf;
for (i = 0; i <= 63; i++) { /* Max group is 63 */
if (group & ((ast_group_t) 1 << i)) {
if (!first) {
strncat(buf, ", ", buflen - strlen(buf) - 1);
} else {
first = 0;
}
snprintf(num, sizeof(num), "%u", i);
strncat(buf, num, buflen - strlen(buf) - 1);
}
}
return buf;
}
| int ast_prod | ( | struct ast_channel * | chan | ) |
Send empty audio to prime a channel driver.
Definition at line 4635 of file channel.c.
References ast_channel::_state, ast_debug, AST_FRAME_VOICE, AST_FRIENDLY_OFFSET, ast_log(), AST_STATE_UP, ast_write(), ast_frame_subclass::codec, ast_frame::data, LOG_WARNING, ast_channel::name, ast_frame::ptr, ast_channel::rawwriteformat, ast_frame::src, and ast_frame::subclass.
Referenced by ast_activate_generator().
{
struct ast_frame a = { AST_FRAME_VOICE };
char nothing[128];
/* Send an empty audio frame to get things moving */
if (chan->_state != AST_STATE_UP) {
ast_debug(1, "Prodding channel '%s'\n", chan->name);
a.subclass.codec = chan->rawwriteformat;
a.data.ptr = nothing + AST_FRIENDLY_OFFSET;
a.src = "ast_prod"; /* this better match check in ast_write */
if (ast_write(chan, &a))
ast_log(LOG_WARNING, "Prodding channel '%s' failed\n", chan->name);
}
return 0;
}
| int ast_queue_control | ( | struct ast_channel * | chan, |
| enum ast_control_frame_type | control | ||
| ) |
Queue a control frame with payload.
- Parameters:
-
chan channel to queue frame onto control type of control frame
- Note:
- The channel does not need to be locked before calling this function.
- Return values:
-
zero on success non-zero on failure
Definition at line 1562 of file channel.c.
References AST_FRAME_CONTROL, and ast_queue_frame().
Referenced by __analog_handle_event(), __analog_ss_thread(), __ast_read(), __dahdi_exception(), __oh323_update_info(), analog_call(), analog_exception(), analog_hangup(), analog_ss_thread(), ast_do_pickup(), attempt_transfer(), auto_congest(), cb_events(), cli_console_answer(), cli_console_flash(), console_answer(), console_call(), console_sendtext(), dahdi_handle_event(), dahdi_hangup(), gtalk_is_answered(), gtalk_ringing_ack(), handle_hd_hf(), handle_offhook_message(), handle_request(), handle_request_bye(), handle_request_info(), handle_request_invite(), handle_request_refer(), handle_response(), handle_response_invite(), handle_response_refer(), handle_soft_key_event_message(), handle_stimulus_message(), HandleCallIncoming(), jingle_is_answered(), jingle_ringing_ack(), masquerade_colp_transfer(), misdn_facility_ie_handler(), multicast_rtp_call(), nbs_call(), phone_call(), process_sdp(), receive_digit(), remote_hold(), send_cause2ast(), setup_rtp_connection(), skinny_call(), skinny_transfer(), skinny_unhold(), unistim_call(), and update_state().
{
struct ast_frame f = { AST_FRAME_CONTROL, .subclass.integer = control };
return ast_queue_frame(chan, &f);
}
| int ast_queue_control_data | ( | struct ast_channel * | chan, |
| enum ast_control_frame_type | control, | ||
| const void * | data, | ||
| size_t | datalen | ||
| ) |
Queue a control frame with payload.
- Parameters:
-
chan channel to queue frame onto control type of control frame data pointer to payload data to be included in frame datalen number of bytes of payload data
- Return values:
-
0 success non-zero failure
The supplied payload data is copied into the frame, so the caller's copy is not modified nor freed, and the resulting frame will retain a copy of the data even if the caller frees their local copy.
- Note:
- This method should be treated as a 'network transport'; in other words, your frames may be transferred across an IAX2 channel to another system, which may be a different endianness than yours. Because of this, you should ensure that either your frames will never be expected to work across systems, or that you always put your payload data into 'network byte order' before calling this function.
- The channel does not need to be locked before calling this function.
Definition at line 1569 of file channel.c.
References AST_FRAME_CONTROL, and ast_queue_frame().
Referenced by __analog_handle_event(), analog_hangup(), ast_channel_queue_connected_line_update(), ast_channel_queue_redirecting_update(), change_t38_state(), dahdi_handle_event(), dahdi_hangup(), handle_request_notify(), handle_response_refer(), iax2_queue_control_data(), iax2_transfer(), interpret_t38_parameters(), local_attended_transfer(), masquerade_colp_transfer(), process_sdp(), sig_pri_aoc_d_from_pri(), sig_pri_aoc_e_from_pri(), sig_pri_aoc_s_from_pri(), sig_pri_send_aoce_termination_request(), sip_sipredirect(), and skinny_hold().
{
struct ast_frame f = { AST_FRAME_CONTROL, .subclass.integer = control, .data.ptr = (void *) data, .datalen = datalen };
return ast_queue_frame(chan, &f);
}
| int ast_queue_frame | ( | struct ast_channel * | chan, |
| struct ast_frame * | f | ||
| ) |
Queue one or more frames to a channel's frame queue.
- Parameters:
-
chan the channel to queue the frame(s) on f the frame(s) to queue. Note that the frame(s) will be duplicated by this function. It is the responsibility of the caller to handle freeing the memory associated with the frame(s) being passed if necessary.
- Return values:
-
0 success non-zero failure
Definition at line 1519 of file channel.c.
References __ast_queue_frame().
Referenced by __ast_channel_masquerade(), __ast_read(), __oh323_rtp_create(), __oh323_update_info(), action_atxfer(), agent_request(), alsa_call(), ast_channel_setwhentohangup_tv(), ast_do_masquerade(), ast_dsp_process(), ast_queue_cc_frame(), ast_queue_control(), ast_queue_control_data(), ast_queue_hangup(), ast_queue_hangup_with_cause(), ast_softhangup_nolock(), bridge_write(), cb_events(), cli_console_dial(), cli_console_sendtext(), console_dial(), console_do_answer(), console_flash(), console_sendtext(), dahdi_queue_frame(), dahdi_read(), dictate_exec(), do_immediate_setup(), gtalk_handle_dtmf(), handle_keypad_button_message(), handle_request_info(), handle_request_invite(), handle_response_invite(), iax2_queue_frame(), jingle_handle_dtmf(), keypad_digit(), local_queue_frame(), mgcp_queue_frame(), oh323_simulate_dtmf_end(), oss_call(), pri_queue_frame(), process_sdp(), queue_dtmf_readq(), receive_digit(), receive_message(), rpt_call(), sig_pri_handle_hold(), sig_pri_handle_subcmds(), sig_ss7_queue_frame(), stream_monitor(), unistim_do_senddigit(), unistim_senddigit_end(), usbradio_read(), and wakeup_sub().
{
return __ast_queue_frame(chan, fin, 0, NULL);
}
| int ast_queue_frame_head | ( | struct ast_channel * | chan, |
| struct ast_frame * | f | ||
| ) |
Queue one or more frames to the head of a channel's frame queue.
- Parameters:
-
chan the channel to queue the frame(s) on f the frame(s) to queue. Note that the frame(s) will be duplicated by this function. It is the responsibility of the caller to handle freeing the memory associated with the frame(s) being passed if necessary.
- Return values:
-
0 success non-zero failure
Definition at line 1524 of file channel.c.
References __ast_queue_frame().
Referenced by __ast_answer(), __ast_read(), ast_autoservice_stop(), ast_safe_sleep_conditional(), and feature_request_and_dial().
{
return __ast_queue_frame(chan, fin, 1, NULL);
}
| int ast_queue_hangup | ( | struct ast_channel * | chan | ) |
Queue a hangup frame.
- Note:
- The channel does not need to be locked before calling this function.
Definition at line 1530 of file channel.c.
References ast_channel::_softhangup, ast_channel_trylock, ast_channel_unlock, AST_CONTROL_HANGUP, AST_FRAME_CONTROL, ast_queue_frame(), and AST_SOFTHANGUP_DEV.
Referenced by bridge_queue_hangup(), cleanup_connection(), cli_console_hangup(), close_call(), gtalk_hangup_farend(), gtalk_is_answered(), handle_onhook_message(), handle_request_bye(), handle_request_cancel(), handle_soft_key_event_message(), iax2_destroy(), iax2_queue_hangup(), jingle_hangup_farend(), local_fixup(), local_hangup(), and mgcp_queue_hangup().
{
struct ast_frame f = { AST_FRAME_CONTROL, .subclass.integer = AST_CONTROL_HANGUP };
/* Yeah, let's not change a lock-critical value without locking */
if (!ast_channel_trylock(chan)) {
chan->_softhangup |= AST_SOFTHANGUP_DEV;
ast_channel_unlock(chan);
}
return ast_queue_frame(chan, &f);
}
| int ast_queue_hangup_with_cause | ( | struct ast_channel * | chan, |
| int | cause | ||
| ) |
Queue a hangup frame with hangupcause set.
- Note:
- The channel does not need to be locked before calling this function.
- Parameters:
-
[in] chan channel to queue frame onto [in] cause the hangup cause
- Returns:
- 0 on success, -1 on error
- Since:
- 1.6.1
Definition at line 1542 of file channel.c.
References ast_channel::_softhangup, ast_channel_trylock, ast_channel_unlock, AST_CONTROL_HANGUP, AST_FRAME_CONTROL, ast_queue_frame(), AST_SOFTHANGUP_DEV, cause, ast_frame::data, ast_channel::hangupcause, and ast_frame::uint32.
Referenced by __analog_handle_event(), __oh323_update_info(), __sip_autodestruct(), close_call(), close_client(), console_hangup(), dahdi_handle_event(), dahdi_r2_on_call_disconnect(), handle_request_bye(), handle_response(), handle_response_invite(), HandleCallOutgoing(), hangup_chan(), hangup_connection(), misdn_answer(), retrans_pkt(), and TransferCallStep1().
{
struct ast_frame f = { AST_FRAME_CONTROL, .subclass.integer = AST_CONTROL_HANGUP };
if (cause >= 0)
f.data.uint32 = cause;
/* Yeah, let's not change a lock-critical value without locking */
if (!ast_channel_trylock(chan)) {
chan->_softhangup |= AST_SOFTHANGUP_DEV;
if (cause < 0)
f.data.uint32 = chan->hangupcause;
ast_channel_unlock(chan);
}
return ast_queue_frame(chan, &f);
}
| int ast_raw_answer | ( | struct ast_channel * | chan, |
| int | cdr_answer | ||
| ) |
Answer a channel.
- Parameters:
-
chan channel to answer cdr_answer flag to control whether any associated CDR should be marked as 'answered'
This function answers a channel and handles all necessary call setup functions.
- Note:
- The channel passed does not need to be locked, but is locked by the function when needed.
- Unlike ast_answer(), this function will not wait for media flow to begin. The caller should be careful before sending media to the channel before incoming media arrives, as the outgoing media may be lost.
- Return values:
-
0 on success non-zero on failure
Definition at line 2871 of file channel.c.
References ast_channel::_state, ast_channel_tech::answer, ast_cdr_answer(), AST_CEL_ANSWER, ast_cel_report_event(), ast_channel_lock, ast_channel_unlock, ast_check_hangup(), AST_FLAG_OUTGOING, AST_FLAG_ZOMBIE, ast_indicate(), ast_setstate(), AST_STATE_RING, AST_STATE_RINGING, AST_STATE_UP, ast_test_flag, ast_channel::cdr, and ast_channel::tech.
Referenced by __ast_answer(), and ast_bridge_call().
{
int res = 0;
ast_channel_lock(chan);
/* You can't answer an outbound call */
if (ast_test_flag(chan, AST_FLAG_OUTGOING)) {
ast_channel_unlock(chan);
return 0;
}
/* Stop if we're a zombie or need a soft hangup */
if (ast_test_flag(chan, AST_FLAG_ZOMBIE) || ast_check_hangup(chan)) {
ast_channel_unlock(chan);
return -1;
}
ast_channel_unlock(chan);
switch (chan->_state) {
case AST_STATE_RINGING:
case AST_STATE_RING:
ast_channel_lock(chan);
if (chan->tech->answer) {
res = chan->tech->answer(chan);
}
ast_setstate(chan, AST_STATE_UP);
if (cdr_answer) {
ast_cdr_answer(chan->cdr);
}
ast_cel_report_event(chan, AST_CEL_ANSWER, NULL, NULL, NULL);
ast_channel_unlock(chan);
break;
case AST_STATE_UP:
ast_cel_report_event(chan, AST_CEL_ANSWER, NULL, NULL, NULL);
/* Calling ast_cdr_answer when it it has previously been called
* is essentially a no-op, so it is safe.
*/
if (cdr_answer) {
ast_cdr_answer(chan->cdr);
}
break;
default:
break;
}
ast_indicate(chan, -1);
return res;
}
| struct ast_frame* ast_read | ( | struct ast_channel * | chan | ) | [read] |
Reads a frame.
- Parameters:
-
chan channel to read a frame from
- Returns:
- Returns a frame, or NULL on error. If it returns NULL, you best just stop reading frames and assume the channel has been disconnected.
Definition at line 4252 of file channel.c.
References __ast_read().
Referenced by __adsi_transmit_messages(), __analog_ss_thread(), __ast_answer(), __ast_play_and_record(), __ast_request_and_dial(), adsi_careful_send(), agent_ack_sleep(), agent_read(), analog_ss_thread(), ast_bridge_handle_trip(), ast_generic_bridge(), ast_recvtext(), ast_safe_sleep_conditional(), ast_tonepair(), ast_transfer(), ast_udptl_bridge(), ast_waitfordigit_full(), async_agi_read_frame(), async_wait(), autoservice_run(), background_detect_exec(), channel_spy(), conf_flush(), conf_run(), dahdi_accept_r2_call_exec(), dahdi_bridge(), dial_exec_full(), dictate_exec(), disa_exec(), disable_t38(), do_idle_thread(), do_waiting(), echo_exec(), eivr_comm(), feature_request_and_dial(), find_cache(), generic_fax_exec(), handle_recordfile(), handle_speechrecognize(), iax2_bridge(), ices_exec(), isAnsweringMachine(), jack_exec(), local_bridge_loop(), manage_parked_call(), measurenoise(), misdn_bridge(), monitor_dial(), mp3_exec(), NBScat_exec(), receive_dtmf_digits(), receivefax_t38_init(), record_exec(), recordthread(), remote_bridge_loop(), rpt(), rpt_exec(), run_agi(), send_tone_burst(), send_waveform_to_channel(), sendfax_t38_init(), sendurl_exec(), speech_background(), transmit_audio(), transmit_t38(), wait_for_answer(), wait_for_hangup(), wait_for_winner(), waitforring_exec(), and waitstream_core().
{
return __ast_read(chan, 0);
}
| struct ast_frame* ast_read_noaudio | ( | struct ast_channel * | chan | ) | [read] |
Reads a frame, returning AST_FRAME_NULL frame if audio.
- Parameters:
-
chan channel to read a frame from
- Returns:
- Returns a frame, or NULL on error. If it returns NULL, you best just stop reading frames and assume the channel has been disconnected.
- Note:
- Audio is replaced with AST_FRAME_NULL to avoid transcode when the resulting audio is not necessary.
Definition at line 4257 of file channel.c.
References __ast_read().
Referenced by ast_bridge_handle_trip(), and conf_run().
{
return __ast_read(chan, 1);
}
| int ast_readstring | ( | struct ast_channel * | c, |
| char * | s, | ||
| int | len, | ||
| int | timeout, | ||
| int | rtimeout, | ||
| char * | enders | ||
| ) |
Reads multiple digits.
- Parameters:
-
c channel to read from s string to read in to. Must be at least the size of your length len how many digits to read (maximum) timeout how long to timeout between digits rtimeout timeout to wait on the first digit enders digits to end the string
Read in a digit string "s", max length "len", maximum timeout between digits "timeout" (-1 for none), terminated by anything in "enders". Give them rtimeout for the first digit.
- Returns:
- Returns 0 on normal return, or 1 on a timeout. In the case of a timeout, any digits that were read before the timeout will still be available in s. RETURNS 2 in full version when ctrlfd is available, NOT 1
Definition at line 5676 of file channel.c.
References ast_readstring_full().
Referenced by __adsi_transmit_messages(), ast_adsi_begin_download(), ast_adsi_get_cpeinfo(), ast_adsi_load_session(), ast_app_getdata(), dialout(), do_directory(), forward_message(), privacy_exec(), vm_authenticate(), vm_newuser(), and vm_options().
{
return ast_readstring_full(c, s, len, timeout, ftimeout, enders, -1, -1);
}
| int ast_readstring_full | ( | struct ast_channel * | c, |
| char * | s, | ||
| int | len, | ||
| int | timeout, | ||
| int | rtimeout, | ||
| char * | enders, | ||
| int | audiofd, | ||
| int | ctrlfd | ||
| ) |
Definition at line 5681 of file channel.c.
References ast_channel_start_silence_generator(), ast_channel_stop_silence_generator(), ast_check_hangup(), AST_DIGIT_ANY, AST_FLAG_ZOMBIE, AST_GETDATA_COMPLETE, AST_GETDATA_EMPTY_END_TERMINATED, AST_GETDATA_FAILED, AST_GETDATA_INTERRUPTED, AST_GETDATA_TIMEOUT, ast_opt_transmit_silence, ast_stopstream(), ast_test_flag, ast_waitfordigit_full(), ast_waitstream_full(), and ast_channel::stream.
Referenced by ast_app_getdata_full(), and ast_readstring().
{
int pos = 0; /* index in the buffer where we accumulate digits */
int to = ftimeout;
struct ast_silence_generator *silgen = NULL;
/* Stop if we're a zombie or need a soft hangup */
if (ast_test_flag(c, AST_FLAG_ZOMBIE) || ast_check_hangup(c))
return -1;
if (!len)
return -1;
for (;;) {
int d;
if (c->stream) {
d = ast_waitstream_full(c, AST_DIGIT_ANY, audiofd, ctrlfd);
ast_stopstream(c);
if (!silgen && ast_opt_transmit_silence)
silgen = ast_channel_start_silence_generator(c);
usleep(1000);
if (!d)
d = ast_waitfordigit_full(c, to, audiofd, ctrlfd);
} else {
if (!silgen && ast_opt_transmit_silence)
silgen = ast_channel_start_silence_generator(c);
d = ast_waitfordigit_full(c, to, audiofd, ctrlfd);
}
if (d < 0) {
ast_channel_stop_silence_generator(c, silgen);
return AST_GETDATA_FAILED;
}
if (d == 0) {
s[pos] = '\0';
ast_channel_stop_silence_generator(c, silgen);
return AST_GETDATA_TIMEOUT;
}
if (d == 1) {
s[pos] = '\0';
ast_channel_stop_silence_generator(c, silgen);
return AST_GETDATA_INTERRUPTED;
}
if (strchr(enders, d) && (pos == 0)) {
s[pos] = '\0';
ast_channel_stop_silence_generator(c, silgen);
return AST_GETDATA_EMPTY_END_TERMINATED;
}
if (!strchr(enders, d)) {
s[pos++] = d;
}
if (strchr(enders, d) || (pos >= len)) {
s[pos] = '\0';
ast_channel_stop_silence_generator(c, silgen);
return AST_GETDATA_COMPLETE;
}
to = timeout;
}
/* Never reached */
return 0;
}
| int ast_recvchar | ( | struct ast_channel * | chan, |
| int | timeout | ||
| ) |
Receives a text character from a channel.
- Parameters:
-
chan channel to act upon timeout timeout in milliseconds (0 for infinite wait)
Read a char of text from a channel
- Returns:
- 0 on success, -1 on failure
Definition at line 4511 of file channel.c.
References ast_free, and ast_recvtext().
Referenced by handle_recvchar().
{
int c;
char *buf = ast_recvtext(chan, timeout);
if (buf == NULL)
return -1; /* error or timeout */
c = *(unsigned char *)buf;
ast_free(buf);
return c;
}
| char* ast_recvtext | ( | struct ast_channel * | chan, |
| int | timeout | ||
| ) |
Receives a text string from a channel Read a string of text from a channel.
- Parameters:
-
chan channel to act upon timeout timeout in milliseconds (0 for infinite wait)
- Returns:
- the received text, or NULL to signify failure.
Definition at line 4522 of file channel.c.
References ast_check_hangup(), AST_CONTROL_HANGUP, AST_FRAME_CONTROL, AST_FRAME_TEXT, ast_frfree, ast_read(), ast_strndup, ast_waitfor(), ast_frame::data, ast_frame::datalen, f, ast_frame::frametype, ast_frame_subclass::integer, ast_frame::ptr, and ast_frame::subclass.
Referenced by ast_recvchar(), and handle_recvtext().
{
int res, done = 0;
char *buf = NULL;
while (!done) {
struct ast_frame *f;
if (ast_check_hangup(chan))
break;
res = ast_waitfor(chan, timeout);
if (res <= 0) /* timeout or error */
break;
timeout = res; /* update timeout */
f = ast_read(chan);
if (f == NULL)
break; /* no frame */
if (f->frametype == AST_FRAME_CONTROL && f->subclass.integer == AST_CONTROL_HANGUP)
done = 1; /* force a break */
else if (f->frametype == AST_FRAME_TEXT) { /* what we want */
buf = ast_strndup((char *) f->data.ptr, f->datalen); /* dup and break */
done = 1;
}
ast_frfree(f);
}
return buf;
}
| int ast_redirecting_build_data | ( | unsigned char * | data, |
| size_t | datalen, | ||
| const struct ast_party_redirecting * | redirecting, | ||
| const struct ast_set_party_redirecting * | update | ||
| ) |
Build the redirecting id data frame.
- Since:
- 1.8
- Parameters:
-
data Buffer to fill with the frame data datalen Size of the buffer to fill redirecting Redirecting id information update What redirecting information to build. NULL if all.
- Return values:
-
-1 if error Amount of data buffer used
Definition at line 8855 of file channel.c.
References ast_log(), AST_REDIRECTING_COUNT, AST_REDIRECTING_FROM_ID_PRESENTATION, AST_REDIRECTING_FROM_NAME, AST_REDIRECTING_FROM_NAME_CHAR_SET, AST_REDIRECTING_FROM_NAME_PRESENTATION, AST_REDIRECTING_FROM_NAME_VALID, AST_REDIRECTING_FROM_NUMBER, AST_REDIRECTING_FROM_NUMBER_PLAN, AST_REDIRECTING_FROM_NUMBER_PRESENTATION, AST_REDIRECTING_FROM_NUMBER_VALID, AST_REDIRECTING_FROM_SUBADDRESS, AST_REDIRECTING_FROM_SUBADDRESS_ODD_EVEN, AST_REDIRECTING_FROM_SUBADDRESS_TYPE, AST_REDIRECTING_FROM_SUBADDRESS_VALID, AST_REDIRECTING_FROM_TAG, AST_REDIRECTING_TO_ID_PRESENTATION, AST_REDIRECTING_TO_NAME, AST_REDIRECTING_TO_NAME_CHAR_SET, AST_REDIRECTING_TO_NAME_PRESENTATION, AST_REDIRECTING_TO_NAME_VALID, AST_REDIRECTING_TO_NUMBER, AST_REDIRECTING_TO_NUMBER_PLAN, AST_REDIRECTING_TO_NUMBER_PRESENTATION, AST_REDIRECTING_TO_NUMBER_VALID, AST_REDIRECTING_TO_SUBADDRESS, AST_REDIRECTING_TO_SUBADDRESS_ODD_EVEN, AST_REDIRECTING_TO_SUBADDRESS_TYPE, AST_REDIRECTING_TO_SUBADDRESS_VALID, AST_REDIRECTING_TO_TAG, AST_REDIRECTING_VERSION, ast_party_redirecting::count, ast_party_redirecting::from, ast_set_party_redirecting::from, LOG_WARNING, ast_party_id_ies::name, party_id_build_data(), ast_party_redirecting::reason, ast_party_name_ies::str, ast_party_redirecting::to, ast_set_party_redirecting::to, and value.
Referenced by ast_channel_queue_redirecting_update(), ast_channel_update_redirecting(), and local_indicate().
{
int32_t value;
size_t pos = 0;
int res;
static const struct ast_party_id_ies from_ies = {
.name.str = AST_REDIRECTING_FROM_NAME,
.name.char_set = AST_REDIRECTING_FROM_NAME_CHAR_SET,
.name.presentation = AST_REDIRECTING_FROM_NAME_PRESENTATION,
.name.valid = AST_REDIRECTING_FROM_NAME_VALID,
.number.str = AST_REDIRECTING_FROM_NUMBER,
.number.plan = AST_REDIRECTING_FROM_NUMBER_PLAN,
.number.presentation = AST_REDIRECTING_FROM_NUMBER_PRESENTATION,
.number.valid = AST_REDIRECTING_FROM_NUMBER_VALID,
.subaddress.str = AST_REDIRECTING_FROM_SUBADDRESS,
.subaddress.type = AST_REDIRECTING_FROM_SUBADDRESS_TYPE,
.subaddress.odd_even_indicator = AST_REDIRECTING_FROM_SUBADDRESS_ODD_EVEN,
.subaddress.valid = AST_REDIRECTING_FROM_SUBADDRESS_VALID,
.tag = AST_REDIRECTING_FROM_TAG,
.combined_presentation = AST_REDIRECTING_FROM_ID_PRESENTATION,
};
static const struct ast_party_id_ies to_ies = {
.name.str = AST_REDIRECTING_TO_NAME,
.name.char_set = AST_REDIRECTING_TO_NAME_CHAR_SET,
.name.presentation = AST_REDIRECTING_TO_NAME_PRESENTATION,
.name.valid = AST_REDIRECTING_TO_NAME_VALID,
.number.str = AST_REDIRECTING_TO_NUMBER,
.number.plan = AST_REDIRECTING_TO_NUMBER_PLAN,
.number.presentation = AST_REDIRECTING_TO_NUMBER_PRESENTATION,
.number.valid = AST_REDIRECTING_TO_NUMBER_VALID,
.subaddress.str = AST_REDIRECTING_TO_SUBADDRESS,
.subaddress.type = AST_REDIRECTING_TO_SUBADDRESS_TYPE,
.subaddress.odd_even_indicator = AST_REDIRECTING_TO_SUBADDRESS_ODD_EVEN,
.subaddress.valid = AST_REDIRECTING_TO_SUBADDRESS_VALID,
.tag = AST_REDIRECTING_TO_TAG,
.combined_presentation = AST_REDIRECTING_TO_ID_PRESENTATION,
};
/* Redirecting frame version */
if (datalen < pos + (sizeof(data[0]) * 2) + 1) {
ast_log(LOG_WARNING, "No space left for redirecting frame version\n");
return -1;
}
data[pos++] = AST_REDIRECTING_VERSION;
data[pos++] = 1;
data[pos++] = 2;/* Version 1 did not have a version ie */
res = party_id_build_data(data + pos, datalen - pos, &redirecting->from,
"redirecting-from", &from_ies, update ? &update->from : NULL);
if (res < 0) {
return -1;
}
pos += res;
res = party_id_build_data(data + pos, datalen - pos, &redirecting->to,
"redirecting-to", &to_ies, update ? &update->to : NULL);
if (res < 0) {
return -1;
}
pos += res;
/* Redirecting reason */
if (datalen < pos + (sizeof(data[0]) * 2) + sizeof(value)) {
ast_log(LOG_WARNING, "No space left for redirecting reason\n");
return -1;
}
data[pos++] = AST_REDIRECTING_REASON;
data[pos++] = sizeof(value);
value = htonl(redirecting->reason);
memcpy(data + pos, &value, sizeof(value));
pos += sizeof(value);
/* Redirecting count */
if (datalen < pos + (sizeof(data[0]) * 2) + sizeof(value)) {
ast_log(LOG_WARNING, "No space left for redirecting count\n");
return -1;
}
data[pos++] = AST_REDIRECTING_COUNT;
data[pos++] = sizeof(value);
value = htonl(redirecting->count);
memcpy(data + pos, &value, sizeof(value));
pos += sizeof(value);
return pos;
}
| int ast_redirecting_parse_data | ( | const unsigned char * | data, |
| size_t | datalen, | ||
| struct ast_party_redirecting * | redirecting | ||
| ) |
Parse redirecting indication frame data.
- Since:
- 1.8
- Parameters:
-
data Buffer with the frame data to parse datalen Size of the buffer redirecting Extracted redirecting id information
- Return values:
-
0 on success. -1 on error.
- Note:
- The filled in id structure needs to be initialized by ast_party_redirecting_set_init() before calling.
- The filled in id structure needs to be destroyed by ast_party_redirecting_free() when it is no longer needed.
Definition at line 8948 of file channel.c.
References ast_free, ast_log(), ast_malloc, AST_PARTY_CHAR_SET_ISO8859_1, AST_REDIRECTING_COUNT, AST_REDIRECTING_FROM_ID_PRESENTATION, AST_REDIRECTING_FROM_NAME, AST_REDIRECTING_FROM_NAME_CHAR_SET, AST_REDIRECTING_FROM_NAME_PRESENTATION, AST_REDIRECTING_FROM_NAME_VALID, AST_REDIRECTING_FROM_NUMBER, AST_REDIRECTING_FROM_NUMBER_PLAN, AST_REDIRECTING_FROM_NUMBER_PRESENTATION, AST_REDIRECTING_FROM_NUMBER_VALID, AST_REDIRECTING_FROM_SUBADDRESS, AST_REDIRECTING_FROM_SUBADDRESS_ODD_EVEN, AST_REDIRECTING_FROM_SUBADDRESS_TYPE, AST_REDIRECTING_FROM_SUBADDRESS_VALID, AST_REDIRECTING_FROM_TAG, AST_REDIRECTING_TO_ID_PRESENTATION, AST_REDIRECTING_TO_NAME, AST_REDIRECTING_TO_NAME_CHAR_SET, AST_REDIRECTING_TO_NAME_PRESENTATION, AST_REDIRECTING_TO_NAME_VALID, AST_REDIRECTING_TO_NUMBER, AST_REDIRECTING_TO_NUMBER_PLAN, AST_REDIRECTING_TO_NUMBER_PRESENTATION, AST_REDIRECTING_TO_NUMBER_VALID, AST_REDIRECTING_TO_SUBADDRESS, AST_REDIRECTING_TO_SUBADDRESS_ODD_EVEN, AST_REDIRECTING_TO_SUBADDRESS_TYPE, AST_REDIRECTING_TO_SUBADDRESS_VALID, AST_REDIRECTING_TO_TAG, AST_REDIRECTING_VERSION, ast_party_name::char_set, ast_party_redirecting::count, ast_party_redirecting::from, LOG_DEBUG, LOG_WARNING, ast_party_id::name, ast_party_id::number, ast_party_subaddress::odd_even_indicator, ast_party_number::plan, ast_party_name::presentation, ast_party_number::presentation, ast_party_redirecting::reason, ast_party_name::str, ast_party_number::str, ast_party_subaddress::str, ast_party_id::subaddress, ast_party_id::tag, ast_party_redirecting::to, ast_party_subaddress::type, ast_party_name::valid, ast_party_number::valid, ast_party_subaddress::valid, and value.
Referenced by ast_channel_redirecting_macro(), and ast_indicate_data().
{
size_t pos;
unsigned char ie_len;
unsigned char ie_id;
int32_t value;
int frame_version = 1;
int from_combined_presentation = 0;
int got_from_combined_presentation = 0;/* TRUE if got a combined name and number presentation value. */
int to_combined_presentation = 0;
int got_to_combined_presentation = 0;/* TRUE if got a combined name and number presentation value. */
for (pos = 0; pos < datalen; pos += ie_len) {
if (datalen < pos + sizeof(ie_id) + sizeof(ie_len)) {
ast_log(LOG_WARNING, "Invalid redirecting update\n");
return -1;
}
ie_id = data[pos++];
ie_len = data[pos++];
if (datalen < pos + ie_len) {
ast_log(LOG_WARNING, "Invalid redirecting update\n");
return -1;
}
switch (ie_id) {
/* Redirecting frame version */
case AST_REDIRECTING_VERSION:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting frame version (%u)\n",
(unsigned) ie_len);
break;
}
frame_version = data[pos];
break;
/* Redirecting-from party id name */
case AST_REDIRECTING_FROM_NAME:
ast_free(redirecting->from.name.str);
redirecting->from.name.str = ast_malloc(ie_len + 1);
if (redirecting->from.name.str) {
memcpy(redirecting->from.name.str, data + pos, ie_len);
redirecting->from.name.str[ie_len] = 0;
}
break;
case AST_REDIRECTING_FROM_NAME_CHAR_SET:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-from name char set (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->from.name.char_set = data[pos];
break;
case AST_REDIRECTING_FROM_NAME_PRESENTATION:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-from name presentation (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->from.name.presentation = data[pos];
break;
case AST_REDIRECTING_FROM_NAME_VALID:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-from name valid (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->from.name.valid = data[pos];
break;
/* Redirecting-from party id number */
case AST_REDIRECTING_FROM_NUMBER:
ast_free(redirecting->from.number.str);
redirecting->from.number.str = ast_malloc(ie_len + 1);
if (redirecting->from.number.str) {
memcpy(redirecting->from.number.str, data + pos, ie_len);
redirecting->from.number.str[ie_len] = 0;
}
break;
case AST_REDIRECTING_FROM_NUMBER_PLAN:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-from numbering plan (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->from.number.plan = data[pos];
break;
case AST_REDIRECTING_FROM_NUMBER_PRESENTATION:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-from number presentation (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->from.number.presentation = data[pos];
break;
case AST_REDIRECTING_FROM_NUMBER_VALID:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-from number valid (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->from.number.valid = data[pos];
break;
/* Redirecting-from party id combined presentation */
case AST_REDIRECTING_FROM_ID_PRESENTATION:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-from combined presentation (%u)\n",
(unsigned) ie_len);
break;
}
from_combined_presentation = data[pos];
got_from_combined_presentation = 1;
break;
/* Redirecting-from party id subaddress */
case AST_REDIRECTING_FROM_SUBADDRESS:
ast_free(redirecting->from.subaddress.str);
redirecting->from.subaddress.str = ast_malloc(ie_len + 1);
if (redirecting->from.subaddress.str) {
memcpy(redirecting->from.subaddress.str, data + pos, ie_len);
redirecting->from.subaddress.str[ie_len] = 0;
}
break;
case AST_REDIRECTING_FROM_SUBADDRESS_TYPE:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-from type of subaddress (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->from.subaddress.type = data[pos];
break;
case AST_REDIRECTING_FROM_SUBADDRESS_ODD_EVEN:
if (ie_len != 1) {
ast_log(LOG_WARNING,
"Invalid redirecting-from subaddress odd-even indicator (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->from.subaddress.odd_even_indicator = data[pos];
break;
case AST_REDIRECTING_FROM_SUBADDRESS_VALID:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-from subaddress valid (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->from.subaddress.valid = data[pos];
break;
/* Redirecting-from party id tag */
case AST_REDIRECTING_FROM_TAG:
ast_free(redirecting->from.tag);
redirecting->from.tag = ast_malloc(ie_len + 1);
if (redirecting->from.tag) {
memcpy(redirecting->from.tag, data + pos, ie_len);
redirecting->from.tag[ie_len] = 0;
}
break;
/* Redirecting-to party id name */
case AST_REDIRECTING_TO_NAME:
ast_free(redirecting->to.name.str);
redirecting->to.name.str = ast_malloc(ie_len + 1);
if (redirecting->to.name.str) {
memcpy(redirecting->to.name.str, data + pos, ie_len);
redirecting->to.name.str[ie_len] = 0;
}
break;
case AST_REDIRECTING_TO_NAME_CHAR_SET:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-to name char set (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->to.name.char_set = data[pos];
break;
case AST_REDIRECTING_TO_NAME_PRESENTATION:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-to name presentation (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->to.name.presentation = data[pos];
break;
case AST_REDIRECTING_TO_NAME_VALID:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-to name valid (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->to.name.valid = data[pos];
break;
/* Redirecting-to party id number */
case AST_REDIRECTING_TO_NUMBER:
ast_free(redirecting->to.number.str);
redirecting->to.number.str = ast_malloc(ie_len + 1);
if (redirecting->to.number.str) {
memcpy(redirecting->to.number.str, data + pos, ie_len);
redirecting->to.number.str[ie_len] = 0;
}
break;
case AST_REDIRECTING_TO_NUMBER_PLAN:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-to numbering plan (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->to.number.plan = data[pos];
break;
case AST_REDIRECTING_TO_NUMBER_PRESENTATION:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-to number presentation (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->to.number.presentation = data[pos];
break;
case AST_REDIRECTING_TO_NUMBER_VALID:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-to number valid (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->to.number.valid = data[pos];
break;
/* Redirecting-to party id combined presentation */
case AST_REDIRECTING_TO_ID_PRESENTATION:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-to combined presentation (%u)\n",
(unsigned) ie_len);
break;
}
to_combined_presentation = data[pos];
got_to_combined_presentation = 1;
break;
/* Redirecting-to party id subaddress */
case AST_REDIRECTING_TO_SUBADDRESS:
ast_free(redirecting->to.subaddress.str);
redirecting->to.subaddress.str = ast_malloc(ie_len + 1);
if (redirecting->to.subaddress.str) {
memcpy(redirecting->to.subaddress.str, data + pos, ie_len);
redirecting->to.subaddress.str[ie_len] = 0;
}
break;
case AST_REDIRECTING_TO_SUBADDRESS_TYPE:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-to type of subaddress (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->to.subaddress.type = data[pos];
break;
case AST_REDIRECTING_TO_SUBADDRESS_ODD_EVEN:
if (ie_len != 1) {
ast_log(LOG_WARNING,
"Invalid redirecting-to subaddress odd-even indicator (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->to.subaddress.odd_even_indicator = data[pos];
break;
case AST_REDIRECTING_TO_SUBADDRESS_VALID:
if (ie_len != 1) {
ast_log(LOG_WARNING, "Invalid redirecting-to subaddress valid (%u)\n",
(unsigned) ie_len);
break;
}
redirecting->to.subaddress.valid = data[pos];
break;
/* Redirecting-to party id tag */
case AST_REDIRECTING_TO_TAG:
ast_free(redirecting->to.tag);
redirecting->to.tag = ast_malloc(ie_len + 1);
if (redirecting->to.tag) {
memcpy(redirecting->to.tag, data + pos, ie_len);
redirecting->to.tag[ie_len] = 0;
}
break;
/* Redirecting reason */
case AST_REDIRECTING_REASON:
if (ie_len != sizeof(value)) {
ast_log(LOG_WARNING, "Invalid redirecting reason (%u)\n",
(unsigned) ie_len);
break;
}
memcpy(&value, data + pos, sizeof(value));
redirecting->reason = ntohl(value);
break;
/* Redirecting count */
case AST_REDIRECTING_COUNT:
if (ie_len != sizeof(value)) {
ast_log(LOG_WARNING, "Invalid redirecting count (%u)\n",
(unsigned) ie_len);
break;
}
memcpy(&value, data + pos, sizeof(value));
redirecting->count = ntohl(value);
break;
/* Redirecting unknown element */
default:
ast_log(LOG_DEBUG, "Unknown redirecting element: %u (%u)\n",
(unsigned) ie_id, (unsigned) ie_len);
break;
}
}
switch (frame_version) {
case 1:
/*
* The other end is an earlier version that we need to adjust
* for compatibility.
*/
redirecting->from.name.valid = 1;
redirecting->from.name.char_set = AST_PARTY_CHAR_SET_ISO8859_1;
redirecting->from.number.valid = 1;
if (got_from_combined_presentation) {
redirecting->from.name.presentation = from_combined_presentation;
redirecting->from.number.presentation = from_combined_presentation;
}
redirecting->to.name.valid = 1;
redirecting->to.name.char_set = AST_PARTY_CHAR_SET_ISO8859_1;
redirecting->to.number.valid = 1;
if (got_to_combined_presentation) {
redirecting->to.name.presentation = to_combined_presentation;
redirecting->to.number.presentation = to_combined_presentation;
}
break;
case 2:
/* The other end is at the same level as we are. */
break;
default:
/*
* The other end is newer than we are.
* We need to assume that they are compatible with us.
*/
ast_log(LOG_DEBUG, "Redirecting frame has newer version: %u\n",
(unsigned) frame_version);
break;
}
return 0;
}
| struct ast_channel* ast_request | ( | const char * | type, |
| format_t | format, | ||
| const struct ast_channel * | requestor, | ||
| void * | data, | ||
| int * | status | ||
| ) | [read] |
Requests a channel.
- Parameters:
-
type type of channel to request format requested channel format (codec) requestor channel asking for data data data to pass to the channel requester status status
Request a channel of a given type, with data as optional information used by the low level module
- Return values:
-
NULL failure non-NULL channel on success
Definition at line 5534 of file channel.c.
References AST_CAUSE_BEARERCAPABILITY_NOTAVAIL, AST_CAUSE_NOSUCHDRIVER, AST_CAUSE_NOTDEFINED, ast_channel_release(), AST_FORMAT_AUDIO_MASK, AST_FORMAT_TEXT_MASK, AST_FORMAT_VIDEO_MASK, ast_getformatname_multiple(), ast_log(), AST_RWLIST_RDLOCK, AST_RWLIST_TRAVERSE, AST_RWLIST_UNLOCK, ast_translator_best_choice(), capabilities, ast_channel_tech::capabilities, chanlist::chan, LOG_WARNING, ast_channel_tech::requester, set_security_requirements(), chanlist::tech, and ast_channel_tech::type.
Referenced by __ast_request_and_dial(), ast_call_forward(), attempt_reconnect(), begin_dial_channel(), build_conf(), chanavail_exec(), conf_run(), connect_link(), dial_exec_full(), dial_transfer(), do_forward(), feature_request_and_dial(), findmeexec(), play_sound_file(), ring_entry(), rpt(), rpt_call(), rpt_exec(), rpt_tele_thread(), and wait_for_answer().
{
struct chanlist *chan;
struct ast_channel *c;
format_t capabilities;
format_t fmt;
int res;
int foo;
format_t videoformat = format & AST_FORMAT_VIDEO_MASK;
format_t textformat = format & AST_FORMAT_TEXT_MASK;
if (!cause)
cause = &foo;
*cause = AST_CAUSE_NOTDEFINED;
if (AST_RWLIST_RDLOCK(&backends)) {
ast_log(LOG_WARNING, "Unable to lock technology backend list\n");
return NULL;
}
AST_RWLIST_TRAVERSE(&backends, chan, list) {
if (strcasecmp(type, chan->tech->type))
continue;
capabilities = chan->tech->capabilities;
fmt = format & AST_FORMAT_AUDIO_MASK;
if (fmt) {
/* We have audio - is it possible to connect the various calls to each other?
(Avoid this check for calls without audio, like text+video calls)
*/
res = ast_translator_best_choice(&fmt, &capabilities);
if (res < 0) {
char tmp1[256], tmp2[256];
ast_log(LOG_WARNING, "No translator path exists for channel type %s (native %s) to %s\n", type,
ast_getformatname_multiple(tmp1, sizeof(tmp1), chan->tech->capabilities),
ast_getformatname_multiple(tmp2, sizeof(tmp2), format));
*cause = AST_CAUSE_BEARERCAPABILITY_NOTAVAIL;
AST_RWLIST_UNLOCK(&backends);
return NULL;
}
}
AST_RWLIST_UNLOCK(&backends);
if (!chan->tech->requester)
return NULL;
if (!(c = chan->tech->requester(type, capabilities | videoformat | textformat, requestor, data, cause)))
return NULL;
if (set_security_requirements(requestor, c)) {
ast_log(LOG_WARNING, "Setting security requirements failed\n");
c = ast_channel_release(c);
*cause = AST_CAUSE_BEARERCAPABILITY_NOTAVAIL;
return NULL;
}
/* no need to generate a Newchannel event here; it is done in the channel_alloc call */
return c;
}
ast_log(LOG_WARNING, "No channel type registered for '%s'\n", type);
*cause = AST_CAUSE_NOSUCHDRIVER;
AST_RWLIST_UNLOCK(&backends);
return NULL;
}
| struct ast_channel* ast_request_and_dial | ( | const char * | type, |
| format_t | format, | ||
| const struct ast_channel * | requestor, | ||
| void * | data, | ||
| int | timeout, | ||
| int * | reason, | ||
| const char * | cid_num, | ||
| const char * | cid_name | ||
| ) | [read] |
Request a channel of a given type, with data as optional information used by the low level module and attempt to place a call on it.
- Parameters:
-
type type of channel to request format requested channel format requestor channel asking for data data data to pass to the channel requester timeout maximum amount of time to wait for an answer reason why unsuccessful (if unsuccessful) cid_num Caller-ID Number cid_name Caller-ID Name (ascii)
- Returns:
- Returns an ast_channel on success or no answer, NULL on failure. Check the value of chan->_state to know if the call was answered or not.
Definition at line 5489 of file channel.c.
References __ast_request_and_dial().
Referenced by ast_pbx_outgoing_exten(), and generic_recall().
{
return __ast_request_and_dial(type, format, requestor, data, timeout, outstate, cidnum, cidname, NULL);
}
| int ast_safe_sleep | ( | struct ast_channel * | chan, |
| int | ms | ||
| ) |
Wait for a specified amount of time, looking for hangups.
- Parameters:
-
chan channel to wait for ms length of time in milliseconds to sleep
Waits for a specified amount of time, servicing the channel as required.
- Returns:
- returns -1 on hangup, otherwise 0.
Definition at line 1873 of file channel.c.
References ast_safe_sleep_conditional().
Referenced by __analog_ss_thread(), alarmreceiver_exec(), analog_ss_thread(), ast_adsi_transmit_message_full(), ast_dtmf_stream(), ast_senddigit(), builtin_atxfer(), builtin_parkcall(), conf_run(), dictate_exec(), disa_exec(), flash_exec(), function_ilink(), handle_callforward_button(), login_exec(), mgcp_ss(), milliwatt_exec(), misdn_check_l2l1(), old_milliwatt_exec(), park_call_exec(), pbx_builtin_wait(), play_moh_exec(), play_tone_pair(), playtone(), privacy_exec(), receive_ademco_contact_id(), rpt_call(), rpt_exec(), rpt_tele_thread(), send_morse(), send_tone_telemetry(), skinny_ss(), testclient_exec(), testserver_exec(), try_calling(), wait_for_hangup(), wait_interval(), wait_moh_exec(), waituntil_exec(), and zapateller_exec().
{
return ast_safe_sleep_conditional(chan, ms, NULL, NULL);
}
| int ast_safe_sleep_conditional | ( | struct ast_channel * | chan, |
| int | ms, | ||
| int(*)(void *) | cond, | ||
| void * | data | ||
| ) |
Wait for a specified amount of time, looking for hangups and a condition argument.
- Parameters:
-
chan channel to wait for ms length of time in milliseconds to sleep cond a function pointer for testing continue condition data argument to be passed to the condition test function
- Returns:
- returns -1 on hangup, otherwise 0.
Waits for a specified amount of time, servicing the channel as required. If cond returns 0, this function returns.
Definition at line 1806 of file channel.c.
References ast_channel_lock, ast_channel_start_silence_generator(), ast_channel_stop_silence_generator(), ast_channel_unlock, ast_frfree, ast_frisolate(), ast_is_deferrable_frame(), AST_LIST_HEAD_INIT_NOLOCK, AST_LIST_HEAD_NOLOCK, AST_LIST_INSERT_HEAD, AST_LIST_REMOVE_HEAD, ast_opt_transmit_silence, ast_queue_frame_head(), ast_read(), ast_waitfor(), cond, f, and ast_channel::generatordata.
Referenced by ast_safe_sleep(), and login_exec().
{
struct ast_frame *f;
struct ast_silence_generator *silgen = NULL;
int res = 0;
AST_LIST_HEAD_NOLOCK(, ast_frame) deferred_frames;
AST_LIST_HEAD_INIT_NOLOCK(&deferred_frames);
/* If no other generator is present, start silencegen while waiting */
if (ast_opt_transmit_silence && !chan->generatordata) {
silgen = ast_channel_start_silence_generator(chan);
}
while (ms > 0) {
struct ast_frame *dup_f = NULL;
if (cond && ((*cond)(data) == 0)) {
break;
}
ms = ast_waitfor(chan, ms);
if (ms < 0) {
res = -1;
break;
}
if (ms > 0) {
f = ast_read(chan);
if (!f) {
res = -1;
break;
}
if (!ast_is_deferrable_frame(f)) {
ast_frfree(f);
continue;
}
if ((dup_f = ast_frisolate(f))) {
if (dup_f != f) {
ast_frfree(f);
}
AST_LIST_INSERT_HEAD(&deferred_frames, dup_f, frame_list);
}
}
}
/* stop silgen if present */
if (silgen) {
ast_channel_stop_silence_generator(chan, silgen);
}
/* We need to free all the deferred frames, but we only need to
* queue the deferred frames if there was no error and no
* hangup was received
*/
ast_channel_lock(chan);
while ((f = AST_LIST_REMOVE_HEAD(&deferred_frames, frame_list))) {
if (!res) {
ast_queue_frame_head(chan, f);
}
ast_frfree(f);
}
ast_channel_unlock(chan);
return res;
}
| int ast_senddigit | ( | struct ast_channel * | chan, |
| char | digit, | ||
| unsigned int | duration | ||
| ) |
Send a DTMF digit to a channel.
- Parameters:
-
chan channel to act upon digit the DTMF digit to send, encoded in ASCII duration the duration of the digit ending in ms
- Returns:
- 0 on success, -1 on failure
Definition at line 4625 of file channel.c.
References AST_DEFAULT_EMULATE_DTMF_DURATION, ast_safe_sleep(), ast_senddigit_begin(), ast_senddigit_end(), ast_channel_tech::send_digit_begin, and ast_channel::tech.
Referenced by ast_dtmf_stream(), dial_exec_full(), do_dtmf_phone(), manager_play_dtmf(), and rpt_call().
{
if (chan->tech->send_digit_begin) {
ast_senddigit_begin(chan, digit);
ast_safe_sleep(chan, (duration >= AST_DEFAULT_EMULATE_DTMF_DURATION ? duration : AST_DEFAULT_EMULATE_DTMF_DURATION));
}
return ast_senddigit_end(chan, digit, (duration >= AST_DEFAULT_EMULATE_DTMF_DURATION ? duration : AST_DEFAULT_EMULATE_DTMF_DURATION));
}
| int ast_senddigit_begin | ( | struct ast_channel * | chan, |
| char | digit | ||
| ) |
Send a DTMF digit to a channel.
- Parameters:
-
chan channel to act upon digit the DTMF digit to send, encoded in ASCII
- Returns:
- 0 on success, -1 on failure
Definition at line 4567 of file channel.c.
References ast_debug, ast_playtones_start(), ast_channel::name, ast_channel_tech::send_digit_begin, and ast_channel::tech.
Referenced by agent_digit_begin(), ast_senddigit(), and ast_write().
{
/* Device does not support DTMF tones, lets fake
* it by doing our own generation. */
static const char * const dtmf_tones[] = {
"941+1336", /* 0 */
"697+1209", /* 1 */
"697+1336", /* 2 */
"697+1477", /* 3 */
"770+1209", /* 4 */
"770+1336", /* 5 */
"770+1477", /* 6 */
"852+1209", /* 7 */
"852+1336", /* 8 */
"852+1477", /* 9 */
"697+1633", /* A */
"770+1633", /* B */
"852+1633", /* C */
"941+1633", /* D */
"941+1209", /* * */
"941+1477" /* # */
};
if (!chan->tech->send_digit_begin)
return 0;
if (!chan->tech->send_digit_begin(chan, digit))
return 0;
if (digit >= '0' && digit <='9')
ast_playtones_start(chan, 0, dtmf_tones[digit-'0'], 0);
else if (digit >= 'A' && digit <= 'D')
ast_playtones_start(chan, 0, dtmf_tones[digit-'A'+10], 0);
else if (digit == '*')
ast_playtones_start(chan, 0, dtmf_tones[14], 0);
else if (digit == '#')
ast_playtones_start(chan, 0, dtmf_tones[15], 0);
else {
/* not handled */
ast_debug(1, "Unable to generate DTMF tone '%c' for '%s'\n", digit, chan->name);
}
return 0;
}
| int ast_senddigit_end | ( | struct ast_channel * | chan, |
| char | digit, | ||
| unsigned int | duration | ||
| ) |
Send a DTMF digit to a channel.
- Parameters:
-
chan channel to act upon digit the DTMF digit to send, encoded in ASCII duration the duration of the digit ending in ms
- Returns:
- Returns 0 on success, -1 on failure
Definition at line 4612 of file channel.c.
References ast_playtones_stop(), ast_channel::generator, ast_channel_tech::send_digit_end, and ast_channel::tech.
Referenced by agent_digit_end(), ast_senddigit(), and ast_write().
{
int res = -1;
if (chan->tech->send_digit_end)
res = chan->tech->send_digit_end(chan, digit, duration);
if (res && chan->generator)
ast_playtones_stop(chan);
return 0;
}
| int ast_sendtext | ( | struct ast_channel * | chan, |
| const char * | text | ||
| ) |
Sends text to a channel.
- Parameters:
-
chan channel to act upon text string of text to send on the channel
Write text to a display on a channel
- Note:
- The channel does not need to be locked before calling this function.
- Return values:
-
0 on success -1 on failure
Definition at line 4549 of file channel.c.
References ast_channel_lock, ast_channel_unlock, ast_check_hangup(), ast_clear_flag, AST_FLAG_BLOCKING, AST_FLAG_ZOMBIE, ast_test_flag, CHECK_BLOCKING, ast_channel_tech::send_text, and ast_channel::tech.
Referenced by action_sendtext(), agent_sendtext(), handle_sendtext(), send_newkey(), and sendtext_exec().
{
int res = 0;
ast_channel_lock(chan);
/* Stop if we're a zombie or need a soft hangup */
if (ast_test_flag(chan, AST_FLAG_ZOMBIE) || ast_check_hangup(chan)) {
ast_channel_unlock(chan);
return -1;
}
CHECK_BLOCKING(chan);
if (chan->tech->send_text)
res = chan->tech->send_text(chan, text);
ast_clear_flag(chan, AST_FLAG_BLOCKING);
ast_channel_unlock(chan);
return res;
}
| void ast_set_callerid | ( | struct ast_channel * | chan, |
| const char * | cid_num, | ||
| const char * | cid_name, | ||
| const char * | cid_ani | ||
| ) |
Set caller ID number, name and ANI and generate AMI event.
- Note:
- Use ast_channel_set_caller() and ast_channel_set_caller_event() instead.
- The channel does not need to be locked before calling this function.
Definition at line 6801 of file channel.c.
References ast_party_caller::ani, ast_cdr_setcid(), ast_channel_lock, ast_channel_unlock, ast_free, ast_strdup, ast_channel::caller, ast_channel::cdr, ast_party_caller::id, ast_party_id::name, ast_party_id::number, report_new_callerid(), ast_party_name::str, ast_party_number::str, ast_party_name::valid, and ast_party_number::valid.
Referenced by __analog_ss_thread(), analog_ss_thread(), cb_events(), disa_exec(), get_pai(), get_rpid(), handle_setcallerid(), mgcp_ss(), privacy_exec(), ring_entry(), rpt_exec(), skinny_newcall(), and socket_process().
{
ast_channel_lock(chan);
if (cid_num) {
chan->caller.id.number.valid = 1;
ast_free(chan->caller.id.number.str);
chan->caller.id.number.str = ast_strdup(cid_num);
}
if (cid_name) {
chan->caller.id.name.valid = 1;
ast_free(chan->caller.id.name.str);
chan->caller.id.name.str = ast_strdup(cid_name);
}
if (cid_ani) {
chan->caller.ani.number.valid = 1;
ast_free(chan->caller.ani.number.str);
chan->caller.ani.number.str = ast_strdup(cid_ani);
}
if (chan->cdr) {
ast_cdr_setcid(chan->cdr, chan);
}
report_new_callerid(chan);
ast_channel_unlock(chan);
}
| void ast_set_hangupsource | ( | struct ast_channel * | chan, |
| const char * | source, | ||
| int | force | ||
| ) |
Set the source of the hangup in this channel and it's bridge.
- Parameters:
-
chan channel to set the field on source a string describing the source of the hangup for this channel force
- Since:
- 1.8
Hangupsource is generally the channel name that caused the bridge to be hung up, but it can also be other things such as "dialplan/agi" This can then be logged in the CDR or CEL
Definition at line 2714 of file channel.c.
References ast_bridged_channel(), ast_channel_lock, ast_channel_unlock, ast_string_field_set, ast_strlen_zero(), ast_channel::bridge, and ast_channel::hangupsource.
Referenced by __dahdi_exception(), func_channel_write_real(), handle_hangup(), handle_request_bye(), handle_request_cancel(), handle_response_invite(), pbx_builtin_hangup(), and set_hangup_source_and_cause().
{
struct ast_channel *bridge;
ast_channel_lock(chan);
if (force || ast_strlen_zero(chan->hangupsource)) {
ast_string_field_set(chan, hangupsource, source);
}
bridge = ast_bridged_channel(chan);
ast_channel_unlock(chan);
if (bridge && (force || ast_strlen_zero(bridge->hangupsource))) {
ast_channel_lock(bridge);
ast_string_field_set(chan, hangupsource, source);
ast_channel_unlock(bridge);
}
}
| int ast_set_read_format | ( | struct ast_channel * | chan, |
| format_t | format | ||
| ) |
Sets read format on channel chan Set read format for channel to whichever component of "format" is best.
- Parameters:
-
chan channel to change format format to change to
- Returns:
- Returns 0 on success, -1 on failure
Definition at line 5151 of file channel.c.
References ast_channel::rawreadformat, ast_channel::readformat, ast_channel::readtrans, and set_format().
Referenced by __ast_play_and_record(), __oh323_update_info(), agent_call(), alarmreceiver_exec(), ast_adsi_transmit_message_full(), ast_channel_make_compatible_helper(), ast_do_masquerade(), attempt_reconnect(), background_detect_exec(), bridge_channel_join(), bridge_make_compatible(), build_conf(), conf_run(), connect_link(), dictate_exec(), do_waiting(), eagi_exec(), echo_exec(), generic_fax_exec(), gtalk_rtp_read(), handle_recordfile(), handle_speechrecognize(), ices_exec(), isAnsweringMachine(), jack_exec(), jingle_rtp_read(), login_exec(), measurenoise(), mgcp_rtp_read(), oh323_rtp_read(), old_milliwatt_exec(), process_sdp(), record_exec(), rpt(), rpt_exec(), setup_rtp_connection(), sip_rtp_read(), skinny_rtp_read(), socket_process(), speech_background(), transmit_audio(), and unistim_rtp_read().
{
return set_format(chan, fmt, &chan->rawreadformat, &chan->readformat,
&chan->readtrans, 0);
}
| void ast_set_variables | ( | struct ast_channel * | chan, |
| struct ast_variable * | vars | ||
| ) |
adds a list of channel variables to a channel
- Parameters:
-
chan the channel vars a linked list of variables
Variable names can be for a regular channel variable or a dialplan function that has the ability to be written to.
Definition at line 7978 of file channel.c.
References ast_variable::name, ast_variable::next, pbx_builtin_setvar_helper(), and ast_variable::value.
Referenced by __ast_request_and_dial(), ast_call_forward(), ast_pbx_outgoing_app(), and ast_pbx_outgoing_exten().
{
struct ast_variable *cur;
for (cur = vars; cur; cur = cur->next)
pbx_builtin_setvar_helper(chan, cur->name, cur->value);
}
| int ast_set_write_format | ( | struct ast_channel * | chan, |
| format_t | format | ||
| ) |
Sets write format on channel chan Set write format for channel to whichever component of "format" is best.
- Parameters:
-
chan channel to change format new format for writing
- Returns:
- Returns 0 on success, -1 on failure
Definition at line 5157 of file channel.c.
References ast_channel::rawwriteformat, set_format(), ast_channel::writeformat, and ast_channel::writetrans.
Referenced by __oh323_update_info(), agent_call(), alarmreceiver_exec(), ast_adsi_transmit_message_full(), ast_channel_make_compatible_helper(), ast_channel_start_silence_generator(), ast_channel_stop_silence_generator(), ast_do_masquerade(), ast_openstream_full(), ast_stopstream(), ast_write(), attempt_reconnect(), bridge_channel_join(), bridge_make_compatible(), build_conf(), chanspy_exec(), conf_run(), connect_link(), dahdiscan_exec(), echo_exec(), extenspy_exec(), generic_fax_exec(), gtalk_rtp_read(), jack_exec(), jingle_rtp_read(), linear_alloc(), linear_release(), login_exec(), mgcp_rtp_read(), moh_alloc(), moh_files_release(), moh_release(), mp3_exec(), NBScat_exec(), oh323_rtp_read(), old_milliwatt_exec(), playtones_alloc(), playtones_release(), process_sdp(), rpt(), rpt_exec(), send_waveform_to_channel(), setup_rtp_connection(), sip_rtp_read(), skinny_rtp_read(), socket_process(), tonepair_alloc(), tonepair_release(), transmit_audio(), and unistim_rtp_read().
{
return set_format(chan, fmt, &chan->rawwriteformat, &chan->writeformat,
&chan->writetrans, 1);
}
| int ast_settimeout | ( | struct ast_channel * | c, |
| unsigned int | rate, | ||
| int(*)(const void *data) | func, | ||
| void * | data | ||
| ) |
Enable or disable timer ticks for a channel.
- Parameters:
-
c channel rate number of timer ticks per second func callback function data
If timers are supported, force a scheduled expiration on the timer fd, at which point we call the callback function / data
- Note:
- Call this function with a rate of 0 to turn off the timer ticks
- Version:
- 1.6.1 changed samples parameter to rate, accomodates new timing methods
Definition at line 3479 of file channel.c.
References ast_channel_lock, ast_channel_unlock, ast_debug, ast_timer_get_max_rate(), ast_timer_set_rate(), ast_channel::data, ast_channel::timer, ast_channel::timingdata, ast_channel::timingfd, and ast_channel::timingfunc.
Referenced by ast_activate_generator(), ast_deactivate_generator(), ast_read_generator_actions(), ast_readaudio_callback(), and filestream_close().
{
int res;
unsigned int real_rate = rate, max_rate;
ast_channel_lock(c);
if (c->timingfd == -1) {
ast_channel_unlock(c);
return -1;
}
if (!func) {
rate = 0;
data = NULL;
}
if (rate && rate > (max_rate = ast_timer_get_max_rate(c->timer))) {
real_rate = max_rate;
}
ast_debug(1, "Scheduling timer at (%u requested / %u actual) timer ticks per second\n", rate, real_rate);
res = ast_timer_set_rate(c->timer, real_rate);
c->timingfunc = func;
c->timingdata = data;
ast_channel_unlock(c);
return res;
}
| int ast_shutting_down | ( | void | ) |
Returns non-zero if Asterisk is being shut down.
- Returns:
- non-zero if Asterisk is being shut down
Definition at line 844 of file channel.c.
References shutting_down.
Referenced by handle_request_options().
{
return shutting_down;
}
| int ast_softhangup | ( | struct ast_channel * | chan, |
| int | cause | ||
| ) |
Softly hangup up a channel.
- Parameters:
-
chan channel to be soft-hung-up reason an AST_SOFTHANGUP_* reason code
Call the protocol layer, but don't destroy the channel structure (use this if you are trying to safely hangup a channel managed by another thread.
- Note:
- The channel passed to this function does not need to be locked.
- Returns:
- Returns 0 regardless
Definition at line 2691 of file channel.c.
References ast_channel_lock, ast_channel_unlock, and ast_softhangup_nolock().
Referenced by __analog_handle_event(), __ast_module_user_hangup_all(), __ast_pbx_run(), __unload_module(), agent_hangup(), agent_logoff(), agent_read(), ast_bridge_call(), ast_channel_softhangup_cb(), ast_dial_join(), birdbath(), cc_generic_agent_stop_ringing(), conf_free(), connect_link(), dahdi_handle_event(), flush_telem(), function_ilink(), handle_hangup(), handle_link_data(), handle_softhangup(), login_exec(), manager_park(), mgcp_pktcgate_remove(), read_agent_config(), rpt(), rpt_call(), rpt_do_restart(), rpt_exec(), sla_handle_hold_event(), softhangup_exec(), start_spying(), startmon(), and unload_module().
{
int res;
ast_channel_lock(chan);
res = ast_softhangup_nolock(chan, cause);
ast_channel_unlock(chan);
return res;
}
| int ast_softhangup_nolock | ( | struct ast_channel * | chan, |
| int | cause | ||
| ) |
Softly hangup up a channel (no channel lock)
- Parameters:
-
chan channel to be soft-hung-up reason an AST_SOFTHANGUP_* reason code
Definition at line 2678 of file channel.c.
References ast_channel::_softhangup, ast_debug, AST_FLAG_BLOCKING, ast_null_frame, ast_queue_frame(), ast_test_flag, ast_channel::blocker, cause, and ast_channel::name.
Referenced by __analog_handle_event(), action_hangup(), ast_async_goto(), ast_softhangup(), attempt_transfer(), check_pendings(), check_rtp_timeout(), dahdi_softhangup_all(), oh323_indicate(), pri_dchannel(), proc_session_timer(), sig_pri_indicate(), sig_pri_send_aoce_termination_request(), sip_indicate(), skinny_indicate(), and ss7_linkset().
{
ast_debug(1, "Soft-Hanging up channel '%s'\n", chan->name);
/* Inform channel driver that we need to be hung up, if it cares */
chan->_softhangup |= cause;
ast_queue_frame(chan, &ast_null_frame);
/* Interrupt any poll call or such */
if (ast_test_flag(chan, AST_FLAG_BLOCKING))
pthread_kill(chan->blocker, SIGURG);
return 0;
}
| const char* ast_state2str | ( | enum ast_channel_state | state | ) |
Gives the string form of a given channel state.
- Parameters:
-
ast_channel_state state to get the name of
- Returns:
- the text form of the binary state given
- Note:
- This function is not reentrant.
Definition at line 986 of file channel.c.
References AST_STATE_BUSY, AST_STATE_DIALING, AST_STATE_DIALING_OFFHOOK, AST_STATE_DOWN, AST_STATE_OFFHOOK, AST_STATE_PRERING, AST_STATE_RESERVED, AST_STATE_RING, AST_STATE_RINGING, AST_STATE_UP, ast_threadstorage_get(), STATE2STR_BUFSIZE, and state2str_threadbuf.
Referenced by __ast_channel_alloc_ap(), action_coreshowchannels(), action_status(), agent_hangup(), ast_channel_data_add_structure(), ast_do_masquerade(), ast_setstate(), attempt_transfer(), func_channel_read(), handle_chanlist(), handle_showchan(), local_attended_transfer(), mgcp_new(), serialize_showchan(), sip_hangup(), and update_connectedline().
{
char *buf;
switch (state) {
case AST_STATE_DOWN:
return "Down";
case AST_STATE_RESERVED:
return "Rsrvd";
case AST_STATE_OFFHOOK:
return "OffHook";
case AST_STATE_DIALING:
return "Dialing";
case AST_STATE_RING:
return "Ring";
case AST_STATE_RINGING:
return "Ringing";
case AST_STATE_UP:
return "Up";
case AST_STATE_BUSY:
return "Busy";
case AST_STATE_DIALING_OFFHOOK:
return "Dialing Offhook";
case AST_STATE_PRERING:
return "Pre-ring";
default:
if (!(buf = ast_threadstorage_get(&state2str_threadbuf, STATE2STR_BUFSIZE)))
return "Unknown";
snprintf(buf, STATE2STR_BUFSIZE, "Unknown (%d)", state);
return buf;
}
}
| int ast_str2cause | ( | const char * | name | ) |
| int ast_tonepair | ( | struct ast_channel * | chan, |
| int | freq1, | ||
| int | freq2, | ||
| int | duration, | ||
| int | vol | ||
| ) |
Play a tone pair for a given amount of time
Definition at line 7698 of file channel.c.
References ast_frfree, ast_read(), ast_tonepair_start(), ast_waitfor(), and ast_channel::generatordata.
Referenced by zapateller_exec().
{
int res;
if ((res = ast_tonepair_start(chan, freq1, freq2, duration, vol)))
return res;
/* Give us some wiggle room */
while (chan->generatordata && ast_waitfor(chan, 100) >= 0) {
struct ast_frame *f = ast_read(chan);
if (f)
ast_frfree(f);
else
return -1;
}
return 0;
}
| int ast_tonepair_start | ( | struct ast_channel * | chan, |
| int | freq1, | ||
| int | freq2, | ||
| int | duration, | ||
| int | vol | ||
| ) |
Start a tone going
Definition at line 7680 of file channel.c.
References ast_activate_generator(), tonepair_def::duration, tonepair_def::freq1, tonepair_def::freq2, and tonepair_def::vol.
Referenced by ast_tonepair(), pbx_builtin_waitexten(), play_dialtone(), play_tone_pair(), rpt_tele_thread(), and sendnoise().
| void ast_tonepair_stop | ( | struct ast_channel * | chan | ) |
Stop a tone from playing
Definition at line 7693 of file channel.c.
References ast_deactivate_generator().
Referenced by sendnoise().
{
ast_deactivate_generator(chan);
}
| int ast_transfer | ( | struct ast_channel * | chan, |
| char * | dest | ||
| ) |
Transfer a channel (if supported).
- Return values:
-
-1 on error 0 if not supported 1 if supported and requested
- Parameters:
-
chan current channel dest destination extension for transfer
Transfer a channel (if supported).
Called by:
- app_transfer
- the manager interface
Definition at line 5627 of file channel.c.
References ast_channel_lock, ast_channel_unlock, ast_check_hangup(), AST_CONTROL_TRANSFER, AST_FLAG_ZOMBIE, AST_FRAME_CONTROL, ast_frfree, ast_read(), ast_test_flag, AST_TRANSFER_SUCCESS, ast_waitfor(), ast_frame::data, ast_frame::frametype, ast_frame_subclass::integer, ast_frame::ptr, ast_frame::subclass, ast_channel::tech, and ast_channel_tech::transfer.
Referenced by transfer_exec().
{
int res = -1;
/* Stop if we're a zombie or need a soft hangup */
ast_channel_lock(chan);
if (!ast_test_flag(chan, AST_FLAG_ZOMBIE) && !ast_check_hangup(chan)) {
if (chan->tech->transfer) {
res = chan->tech->transfer(chan, dest);
if (!res)
res = 1;
} else
res = 0;
}
ast_channel_unlock(chan);
if (res <= 0) {
return res;
}
for (;;) {
struct ast_frame *fr;
res = ast_waitfor(chan, -1);
if (res < 0 || !(fr = ast_read(chan))) {
res = -1;
break;
}
if (fr->frametype == AST_FRAME_CONTROL && fr->subclass.integer == AST_CONTROL_TRANSFER) {
enum ast_control_transfer *message = fr->data.ptr;
if (*message == AST_TRANSFER_SUCCESS) {
res = 1;
} else {
res = -1;
}
ast_frfree(fr);
break;
}
ast_frfree(fr);
}
return res;
}
| char* ast_transfercapability2str | ( | int | transfercapability | ) | const |
Gives the string form of a given transfer capability.
- Parameters:
-
transfercapability transfer capability to get the name of
- Returns:
- the text form of the binary transfer capability
Definition at line 1020 of file channel.c.
References AST_TRANS_CAP_3_1K_AUDIO, AST_TRANS_CAP_DIGITAL, AST_TRANS_CAP_DIGITAL_W_TONES, AST_TRANS_CAP_RESTRICTED_DIGITAL, AST_TRANS_CAP_SPEECH, and AST_TRANS_CAP_VIDEO.
Referenced by ast_channel_data_add_structure(), cb_events(), misdn_call(), oh323_call(), sig_pri_call(), sig_pri_new_ast_channel(), and sig_ss7_new_ast_channel().
{
switch (transfercapability) {
case AST_TRANS_CAP_SPEECH:
return "SPEECH";
case AST_TRANS_CAP_DIGITAL:
return "DIGITAL";
case AST_TRANS_CAP_RESTRICTED_DIGITAL:
return "RESTRICTED_DIGITAL";
case AST_TRANS_CAP_3_1K_AUDIO:
return "3K1AUDIO";
case AST_TRANS_CAP_DIGITAL_W_TONES:
return "DIGITAL_W_TONES";
case AST_TRANS_CAP_VIDEO:
return "VIDEO";
default:
return "UNKNOWN";
}
}
| int ast_waitfor | ( | struct ast_channel * | chan, |
| int | ms | ||
| ) |
Wait for input on a channel.
- Parameters:
-
chan channel to wait on ms length of time to wait on the channel
Wait for input on a channel for a given # of milliseconds (<0 for indefinite).
- Return values:
-
< 0 on failure 0 if nothing ever arrived the # of ms remaining otherwise
Definition at line 3463 of file channel.c.
References ast_waitfor_nandfds().
Referenced by __adsi_transmit_messages(), __analog_ss_thread(), __ast_answer(), __ast_play_and_record(), __ast_request_and_dial(), adsi_careful_send(), agent_ack_sleep(), analog_ss_thread(), ast_dtmf_stream(), ast_recvtext(), ast_safe_sleep_conditional(), ast_tonepair(), ast_transfer(), async_wait(), background_detect_exec(), channel_spy(), conf_flush(), dahdi_accept_r2_call_exec(), dictate_exec(), disa_exec(), disable_t38(), do_idle_thread(), do_waiting(), echo_exec(), handle_recordfile(), handle_speechrecognize(), ices_exec(), isAnsweringMachine(), jack_exec(), launch_asyncagi(), measurenoise(), mp3_exec(), NBScat_exec(), receive_dtmf_digits(), receivefax_t38_init(), record_exec(), recordthread(), send_tone_burst(), send_waveform_to_channel(), sendfax_t38_init(), sendurl_exec(), speech_background(), transmit_audio(), transmit_t38(), wait_for_hangup(), waitforring_exec(), and waitstream_core().
{
int oldms = ms; /* -1 if no timeout */
ast_waitfor_nandfds(&c, 1, NULL, 0, NULL, NULL, &ms);
if ((ms < 0) && (oldms < 0))
ms = 0;
return ms;
}
| struct ast_channel* ast_waitfor_n | ( | struct ast_channel ** | chan, |
| int | n, | ||
| int * | ms | ||
| ) | [read] |
Waits for input on a group of channels Wait for input on an array of channels for a given # of milliseconds.
- Returns:
- Return channel with activity, or NULL if none has activity.
- Parameters:
-
chan an array of pointers to channels n number of channels that are to be waited upon ms time "ms" is modified in-place, if applicable
Definition at line 3458 of file channel.c.
References ast_waitfor_nandfds().
Referenced by ast_generic_bridge(), ast_udptl_bridge(), autoservice_run(), dahdi_bridge(), dial_exec_full(), feature_request_and_dial(), generic_thread_loop(), iax2_bridge(), local_bridge_loop(), misdn_bridge(), monitor_dial(), remote_bridge_loop(), rpt(), rpt_exec(), wait_for_answer(), and wait_for_winner().
{
return ast_waitfor_nandfds(c, n, NULL, 0, NULL, NULL, ms);
}
| int ast_waitfor_n_fd | ( | int * | fds, |
| int | n, | ||
| int * | ms, | ||
| int * | exception | ||
| ) |
Waits for input on an fd.
- Note:
- This version works on fd's only. Be careful with it.
Definition at line 3099 of file channel.c.
References ast_waitfor_nandfds().
Referenced by dundi_lookup_internal(), dundi_precache_internal(), and softmix_bridge_thread().
{
int winner = -1;
ast_waitfor_nandfds(NULL, 0, fds, n, exception, &winner, ms);
return winner;
}
| struct ast_channel* ast_waitfor_nandfds | ( | struct ast_channel ** | c, |
| int | n, | ||
| int * | fds, | ||
| int | nfds, | ||
| int * | exception, | ||
| int * | outfd, | ||
| int * | ms | ||
| ) | [read] |
Waits for activity on a group of channels.
- Parameters:
-
chan an array of pointers to channels n number of channels that are to be waited upon fds an array of fds to wait upon nfds the number of fds to wait upon exception exception flag outfd fd that had activity on it ms how long the wait was
Big momma function here. Wait for activity on any of the n channels, or any of the nfds file descriptors.
- Returns:
- Returns the channel with activity, or NULL on error or if an FD came first. If the FD came first, it will be returned in outfd, otherwise, outfd will be -1
Definition at line 3111 of file channel.c.
References ast_channel::_softhangup, ast_add_fd(), ast_channel_lock, ast_channel_unlock, ast_clear_flag, ast_do_masquerade(), AST_FLAG_BLOCKING, AST_FLAG_EXCEPTION, ast_log(), AST_MAX_FDS, ast_poll, ast_set_flag, AST_SOFTHANGUP_TIMEOUT, ast_tvcmp(), ast_tvdiff_ms(), ast_tvnow(), ast_tvsub(), ast_tvzero(), chanlist::chan, CHECK_BLOCKING, errno, ast_channel::fdno, and LOG_WARNING.
Referenced by ast_waitfor(), ast_waitfor_n(), ast_waitfor_n_fd(), ast_waitfordigit_full(), bridge_channel_join_multithreaded(), conf_run(), eivr_comm(), find_cache(), generic_fax_exec(), multiplexed_thread_function(), run_agi(), and waitstream_core().
{
struct timeval start = { 0 , 0 };
struct pollfd *pfds = NULL;
int res;
long rms;
int x, y, max;
int sz;
struct timeval now = { 0, 0 };
struct timeval whentohangup = { 0, 0 }, diff;
struct ast_channel *winner = NULL;
struct fdmap {
int chan;
int fdno;
} *fdmap = NULL;
if ((sz = n * AST_MAX_FDS + nfds)) {
pfds = alloca(sizeof(*pfds) * sz);
fdmap = alloca(sizeof(*fdmap) * sz);
}
if (outfd)
*outfd = -99999;
if (exception)
*exception = 0;
/* Perform any pending masquerades */
for (x = 0; x < n; x++) {
if (c[x]->masq && ast_do_masquerade(c[x])) {
ast_log(LOG_WARNING, "Masquerade failed\n");
*ms = -1;
return NULL;
}
ast_channel_lock(c[x]);
if (!ast_tvzero(c[x]->whentohangup)) {
if (ast_tvzero(whentohangup))
now = ast_tvnow();
diff = ast_tvsub(c[x]->whentohangup, now);
if (diff.tv_sec < 0 || ast_tvzero(diff)) {
/* Should already be hungup */
c[x]->_softhangup |= AST_SOFTHANGUP_TIMEOUT;
ast_channel_unlock(c[x]);
return c[x];
}
if (ast_tvzero(whentohangup) || ast_tvcmp(diff, whentohangup) < 0)
whentohangup = diff;
}
ast_channel_unlock(c[x]);
}
/* Wait full interval */
rms = *ms;
/* INT_MAX, not LONG_MAX, because it matters on 64-bit */
if (!ast_tvzero(whentohangup) && whentohangup.tv_sec < INT_MAX / 1000) {
rms = whentohangup.tv_sec * 1000 + whentohangup.tv_usec / 1000; /* timeout in milliseconds */
if (*ms >= 0 && *ms < rms) { /* original *ms still smaller */
rms = *ms;
}
} else if (!ast_tvzero(whentohangup) && rms < 0) {
/* Tiny corner case... call would need to last >24 days */
rms = INT_MAX;
}
/*
* Build the pollfd array, putting the channels' fds first,
* followed by individual fds. Order is important because
* individual fd's must have priority over channel fds.
*/
max = 0;
for (x = 0; x < n; x++) {
for (y = 0; y < AST_MAX_FDS; y++) {
fdmap[max].fdno = y; /* fd y is linked to this pfds */
fdmap[max].chan = x; /* channel x is linked to this pfds */
max += ast_add_fd(&pfds[max], c[x]->fds[y]);
}
CHECK_BLOCKING(c[x]);
}
/* Add the individual fds */
for (x = 0; x < nfds; x++) {
fdmap[max].chan = -1;
max += ast_add_fd(&pfds[max], fds[x]);
}
if (*ms > 0)
start = ast_tvnow();
if (sizeof(int) == 4) { /* XXX fix timeout > 600000 on linux x86-32 */
do {
int kbrms = rms;
if (kbrms > 600000)
kbrms = 600000;
res = ast_poll(pfds, max, kbrms);
if (!res)
rms -= kbrms;
} while (!res && (rms > 0));
} else {
res = ast_poll(pfds, max, rms);
}
for (x = 0; x < n; x++)
ast_clear_flag(c[x], AST_FLAG_BLOCKING);
if (res < 0) { /* Simulate a timeout if we were interrupted */
if (errno != EINTR)
*ms = -1;
return NULL;
}
if (!ast_tvzero(whentohangup)) { /* if we have a timeout, check who expired */
now = ast_tvnow();
for (x = 0; x < n; x++) {
if (!ast_tvzero(c[x]->whentohangup) && ast_tvcmp(c[x]->whentohangup, now) <= 0) {
c[x]->_softhangup |= AST_SOFTHANGUP_TIMEOUT;
if (winner == NULL)
winner = c[x];
}
}
}
if (res == 0) { /* no fd ready, reset timeout and done */
*ms = 0; /* XXX use 0 since we may not have an exact timeout. */
return winner;
}
/*
* Then check if any channel or fd has a pending event.
* Remember to check channels first and fds last, as they
* must have priority on setting 'winner'
*/
for (x = 0; x < max; x++) {
res = pfds[x].revents;
if (res == 0)
continue;
if (fdmap[x].chan >= 0) { /* this is a channel */
winner = c[fdmap[x].chan]; /* override previous winners */
if (res & POLLPRI)
ast_set_flag(winner, AST_FLAG_EXCEPTION);
else
ast_clear_flag(winner, AST_FLAG_EXCEPTION);
winner->fdno = fdmap[x].fdno;
} else { /* this is an fd */
if (outfd)
*outfd = pfds[x].fd;
if (exception)
*exception = (res & POLLPRI) ? -1 : 0;
winner = NULL;
}
}
if (*ms > 0) {
*ms -= ast_tvdiff_ms(ast_tvnow(), start);
if (*ms < 0)
*ms = 0;
}
return winner;
}
| int ast_waitfordigit | ( | struct ast_channel * | c, |
| int | ms | ||
| ) |
Waits for a digit.
- Parameters:
-
c channel to wait for a digit on ms how many milliseconds to wait
- Returns:
- Returns <0 on error, 0 on no entry, and the digit on success.
Definition at line 3474 of file channel.c.
References ast_waitfordigit_full().
Referenced by __analog_ss_thread(), _while_exec(), advanced_options(), analog_my_getsigstr(), analog_ss_thread(), ast_adsi_get_cpeid(), ast_adsi_get_cpeinfo(), ast_adsi_print(), ast_adsi_read_encoded_dtmf(), ast_adsi_transmit_message_full(), ast_app_dtget(), ast_control_streamfile(), ast_record_review(), bridge_channel_feature(), builtin_atxfer(), collect_digits(), common_exec(), cpeid_exec(), dialout(), directory_exec(), forward_message(), get_folder(), ivr_dispatch(), mgcp_ss(), my_getsigstr(), pbx_builtin_waitexten(), play_record_review(), pri_ss_thread(), read_exec(), read_newoption(), readexten_exec(), retrydial_exec(), select_item_menu(), select_item_pause(), select_item_seq(), sendnoise(), testclient_exec(), testserver_exec(), vm_execmain(), vm_forwardoptions(), vm_instructions_en(), vm_options(), vm_tempgreeting(), wait_a_bit(), and wait_our_turn().
{
return ast_waitfordigit_full(c, ms, -1, -1);
}
| int ast_waitfordigit_full | ( | struct ast_channel * | c, |
| int | ms, | ||
| int | audiofd, | ||
| int | ctrlfd | ||
| ) |
Wait for a digit Same as ast_waitfordigit() with audio fd for outputting read audio and ctrlfd to monitor for reading.
- Parameters:
-
c channel to wait for a digit on ms how many milliseconds to wait audiofd audio file descriptor to write to if audio frames are received ctrlfd control file descriptor to monitor for reading
- Returns:
- Returns 1 if ctrlfd becomes available
Definition at line 3512 of file channel.c.
References ast_check_hangup(), ast_clear_flag, AST_CONTROL_ANSWER, AST_CONTROL_CONNECTED_LINE, AST_CONTROL_HANGUP, AST_CONTROL_REDIRECTING, AST_CONTROL_RINGING, AST_CONTROL_SRCCHANGE, AST_CONTROL_SRCUPDATE, AST_CONTROL_UPDATE_RTP_PEER, AST_FLAG_END_DTMF_ONLY, AST_FLAG_ZOMBIE, AST_FRAME_CONTROL, AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, AST_FRAME_VOICE, ast_frfree, ast_log(), ast_read(), ast_set_flag, ast_test_flag, ast_waitfor_nandfds(), ast_frame::data, ast_frame::datalen, errno, ast_frame::frametype, ast_frame_subclass::integer, LOG_WARNING, ast_frame::ptr, and ast_frame::subclass.
Referenced by ast_readstring_full(), ast_waitfordigit(), handle_getoption(), and handle_waitfordigit().
{
/* Stop if we're a zombie or need a soft hangup */
if (ast_test_flag(c, AST_FLAG_ZOMBIE) || ast_check_hangup(c))
return -1;
/* Only look for the end of DTMF, don't bother with the beginning and don't emulate things */
ast_set_flag(c, AST_FLAG_END_DTMF_ONLY);
/* Wait for a digit, no more than ms milliseconds total. */
while (ms) {
struct ast_channel *rchan;
int outfd=-1;
errno = 0;
rchan = ast_waitfor_nandfds(&c, 1, &cmdfd, (cmdfd > -1) ? 1 : 0, NULL, &outfd, &ms);
if (!rchan && outfd < 0 && ms) {
if (errno == 0 || errno == EINTR)
continue;
ast_log(LOG_WARNING, "Wait failed (%s)\n", strerror(errno));
ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
return -1;
} else if (outfd > -1) {
/* The FD we were watching has something waiting */
ast_log(LOG_WARNING, "The FD we were waiting for has something waiting. Waitfordigit returning numeric 1\n");
ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
return 1;
} else if (rchan) {
int res;
struct ast_frame *f = ast_read(c);
if (!f)
return -1;
switch (f->frametype) {
case AST_FRAME_DTMF_BEGIN:
break;
case AST_FRAME_DTMF_END:
res = f->subclass.integer;
ast_frfree(f);
ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
return res;
case AST_FRAME_CONTROL:
switch (f->subclass.integer) {
case AST_CONTROL_HANGUP:
ast_frfree(f);
ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
return -1;
case AST_CONTROL_RINGING:
case AST_CONTROL_ANSWER:
case AST_CONTROL_SRCUPDATE:
case AST_CONTROL_SRCCHANGE:
case AST_CONTROL_CONNECTED_LINE:
case AST_CONTROL_REDIRECTING:
case AST_CONTROL_UPDATE_RTP_PEER:
case -1:
/* Unimportant */
break;
default:
ast_log(LOG_WARNING, "Unexpected control subclass '%d'\n", f->subclass.integer);
break;
}
break;
case AST_FRAME_VOICE:
/* Write audio if appropriate */
if (audiofd > -1) {
if (write(audiofd, f->data.ptr, f->datalen) < 0) {
ast_log(LOG_WARNING, "write() failed: %s\n", strerror(errno));
}
}
default:
/* Ignore */
break;
}
ast_frfree(f);
}
}
ast_clear_flag(c, AST_FLAG_END_DTMF_ONLY);
return 0; /* Time is up */
}
| int ast_write | ( | struct ast_channel * | chan, |
| struct ast_frame * | frame | ||
| ) |
Write a frame to a channel This function writes the given frame to the indicated channel.
- Parameters:
-
chan destination channel of the frame frame frame that will be written
- Returns:
- It returns 0 on success, -1 on failure.
- Todo:
- XXX should return 0 maybe ?
Definition at line 4767 of file channel.c.
References ast_channel::_softhangup, apply_plc(), ast_audiohook_detach_list(), AST_AUDIOHOOK_DIRECTION_WRITE, ast_audiohook_write_list(), ast_audiohook_write_list_empty(), ast_channel_lock, ast_channel_trylock, ast_channel_unlock, ast_check_hangup(), ast_clear_flag, AST_CONTROL_UNHOLD, ast_deactivate_generator(), ast_debug, ast_do_masquerade(), AST_FLAG_BLOCKING, AST_FLAG_WRITE_INT, AST_FLAG_ZOMBIE, AST_FORMAT_AUDIO_MASK, ast_format_rate(), AST_FORMAT_SLINEAR, AST_FORMAT_T140, AST_FRAME_CONTROL, AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, ast_frame_dump(), AST_FRAME_HTML, AST_FRAME_IAX, AST_FRAME_MODEM, AST_FRAME_NULL, AST_FRAME_TEXT, AST_FRAME_VIDEO, AST_FRAME_VOICE, ast_framehook_list_write_event(), ast_frfree, ast_frisolate(), ast_getformatname(), ast_getformatname_multiple(), AST_LIST_NEXT, ast_log(), AST_MONITOR_RUNNING, ast_opt_generic_plc, ast_seekstream(), ast_senddigit_begin(), ast_senddigit_end(), ast_set_write_format(), AST_SOFTHANGUP_DEV, ast_test_flag, ast_translate(), ast_writestream(), ast_channel::audiohooks, calc_monitor_jump(), CHECK_BLOCKING, ast_frame_subclass::codec, ast_frame::data, ast_frame::datalen, DEBUGCHAN_FLAG, ast_filestream::fmt, ast_format::format, ast_channel::fout, FRAMECOUNT_INC, ast_channel::framehooks, ast_frame::frametype, ast_channel::generatordata, ast_channel_tech::indicate, ast_channel::insmpl, ast_frame_subclass::integer, ast_frame::len, LOG_WARNING, ast_channel::masq, ast_channel::masqr, ast_channel::monitor, ast_channel::name, ast_channel::nativeformats, chanlist::next, ast_channel::outsmpl, ast_frame::ptr, ast_channel::rawwriteformat, ast_channel_monitor::read_stream, ast_frame::samples, SEEK_FORCECUR, send_dtmf_event(), ast_channel_tech::send_html, ast_channel_tech::send_text, ast_frame::src, ast_channel_monitor::state, ast_frame::subclass, ast_channel::tech, ast_channel_tech::write, ast_channel_monitor::write_stream, ast_channel_tech::write_text, ast_channel_tech::write_video, ast_channel::writeformat, and ast_channel::writetrans.
Referenced by adsi_careful_send(), agent_write(), ast_bridge_call(), ast_generic_bridge(), ast_prod(), ast_readaudio_callback(), ast_readvideo_callback(), ast_udptl_bridge(), ast_write_video(), conf_queue_dtmf(), conf_run(), dahdi_bridge(), dictate_exec(), echo_exec(), fax_generator_generate(), feature_request_and_dial(), function_ilink(), gen_generate(), generic_fax_exec(), handle_jack_audio(), handle_link_data(), iax2_bridge(), jb_get_and_deliver(), linear_generator(), local_bridge_loop(), milliwatt_generate(), misdn_bridge(), moh_files_generator(), moh_generate(), mp3_exec(), multiplexed_bridge_write(), NBScat_exec(), playtones_generator(), remote_bridge_loop(), rpt(), rpt_exec(), send_link_dtmf(), send_link_keyquery(), send_tone_burst(), send_usb_txt(), send_waveform_to_channel(), silence_generator_generate(), simple_bridge_write(), sms_generate(), softmix_bridge_poke(), softmix_bridge_write(), spy_generate(), t38_tx_packet_handler(), tonepair_generator(), and wait_for_answer().
{
int res = -1;
struct ast_frame *f = NULL;
int count = 0;
/*Deadlock avoidance*/
while(ast_channel_trylock(chan)) {
/*cannot goto done since the channel is not locked*/
if(count++ > 10) {
ast_debug(1, "Deadlock avoided for write to channel '%s'\n", chan->name);
return 0;
}
usleep(1);
}
/* Stop if we're a zombie or need a soft hangup */
if (ast_test_flag(chan, AST_FLAG_ZOMBIE) || ast_check_hangup(chan))
goto done;
/* Handle any pending masquerades */
if (chan->masq) {
ast_channel_unlock(chan);
if (ast_do_masquerade(chan)) {
ast_log(LOG_WARNING, "Failed to perform masquerade\n");
return res; /* no need to goto done: chan is already unlocked for masq */
}
ast_channel_lock(chan);
}
if (chan->masqr) {
res = 0; /* XXX explain, why 0 ? */
goto done;
}
/* Perform the framehook write event here. After the frame enters the framehook list
* there is no telling what will happen, how awesome is that!!! */
if (!(fr = ast_framehook_list_write_event(chan->framehooks, fr))) {
res = 0;
goto done;
}
if (chan->generatordata && (!fr->src || strcasecmp(fr->src, "ast_prod"))) {
if (ast_test_flag(chan, AST_FLAG_WRITE_INT)) {
ast_deactivate_generator(chan);
} else {
if (fr->frametype == AST_FRAME_DTMF_END) {
/* There is a generator running while we're in the middle of a digit.
* It's probably inband DTMF, so go ahead and pass it so it can
* stop the generator */
ast_clear_flag(chan, AST_FLAG_BLOCKING);
ast_channel_unlock(chan);
res = ast_senddigit_end(chan, fr->subclass.integer, fr->len);
ast_channel_lock(chan);
CHECK_BLOCKING(chan);
} else if (fr->frametype == AST_FRAME_CONTROL && fr->subclass.integer == AST_CONTROL_UNHOLD) {
/* This is a side case where Echo is basically being called and the person put themselves on hold and took themselves off hold */
res = (chan->tech->indicate == NULL) ? 0 :
chan->tech->indicate(chan, fr->subclass.integer, fr->data.ptr, fr->datalen);
}
res = 0; /* XXX explain, why 0 ? */
goto done;
}
}
/* High bit prints debugging */
if (chan->fout & DEBUGCHAN_FLAG)
ast_frame_dump(chan->name, fr, ">>");
CHECK_BLOCKING(chan);
switch (fr->frametype) {
case AST_FRAME_CONTROL:
res = (chan->tech->indicate == NULL) ? 0 :
chan->tech->indicate(chan, fr->subclass.integer, fr->data.ptr, fr->datalen);
break;
case AST_FRAME_DTMF_BEGIN:
if (chan->audiohooks) {
struct ast_frame *old_frame = fr;
fr = ast_audiohook_write_list(chan, chan->audiohooks, AST_AUDIOHOOK_DIRECTION_WRITE, fr);
if (old_frame != fr)
f = fr;
}
send_dtmf_event(chan, "Sent", fr->subclass.integer, "Yes", "No");
ast_clear_flag(chan, AST_FLAG_BLOCKING);
ast_channel_unlock(chan);
res = ast_senddigit_begin(chan, fr->subclass.integer);
ast_channel_lock(chan);
CHECK_BLOCKING(chan);
break;
case AST_FRAME_DTMF_END:
if (chan->audiohooks) {
struct ast_frame *new_frame = fr;
new_frame = ast_audiohook_write_list(chan, chan->audiohooks, AST_AUDIOHOOK_DIRECTION_WRITE, fr);
if (new_frame != fr) {
ast_frfree(new_frame);
}
}
send_dtmf_event(chan, "Sent", fr->subclass.integer, "No", "Yes");
ast_clear_flag(chan, AST_FLAG_BLOCKING);
ast_channel_unlock(chan);
res = ast_senddigit_end(chan, fr->subclass.integer, fr->len);
ast_channel_lock(chan);
CHECK_BLOCKING(chan);
break;
case AST_FRAME_TEXT:
if (fr->subclass.integer == AST_FORMAT_T140) {
res = (chan->tech->write_text == NULL) ? 0 :
chan->tech->write_text(chan, fr);
} else {
res = (chan->tech->send_text == NULL) ? 0 :
chan->tech->send_text(chan, (char *) fr->data.ptr);
}
break;
case AST_FRAME_HTML:
res = (chan->tech->send_html == NULL) ? 0 :
chan->tech->send_html(chan, fr->subclass.integer, (char *) fr->data.ptr, fr->datalen);
break;
case AST_FRAME_VIDEO:
/* XXX Handle translation of video codecs one day XXX */
res = (chan->tech->write_video == NULL) ? 0 :
chan->tech->write_video(chan, fr);
break;
case AST_FRAME_MODEM:
res = (chan->tech->write == NULL) ? 0 :
chan->tech->write(chan, fr);
break;
case AST_FRAME_VOICE:
if (chan->tech->write == NULL)
break; /*! \todo XXX should return 0 maybe ? */
if (ast_opt_generic_plc && fr->subclass.codec == AST_FORMAT_SLINEAR) {
apply_plc(chan, fr);
}
/* If the frame is in the raw write format, then it's easy... just use the frame - otherwise we will have to translate */
if (fr->subclass.codec == chan->rawwriteformat) {
f = fr;
} else {
/* XXX Something is not right we are not compatible with this frame bad things can happen
* problems range from no/one-way audio to unexplained line hangups as a last resort try adjust the format
* ideally we do not want to do this and this indicates a deeper problem for now we log these events to
* eliminate user impact and help identify the problem areas
* JIRA issues related to this :-
* ASTERISK-14384, ASTERISK-17502, ASTERISK-17541, ASTERISK-18063, ASTERISK-18325, ASTERISK-18422*/
if ((!(fr->subclass.codec & chan->nativeformats)) && (chan->writeformat != fr->subclass.codec)) {
char nf[512];
ast_log(LOG_WARNING, "Codec mismatch on channel %s setting write format to %s from %s native formats %s\n",
chan->name, ast_getformatname(fr->subclass.codec), ast_getformatname(chan->writeformat),
ast_getformatname_multiple(nf, sizeof(nf), chan->nativeformats & AST_FORMAT_AUDIO_MASK));
ast_set_write_format(chan, fr->subclass.codec);
}
f = (chan->writetrans) ? ast_translate(chan->writetrans, fr, 0) : fr;
}
if (!f) {
res = 0;
break;
}
if (chan->audiohooks) {
struct ast_frame *prev = NULL, *new_frame, *cur, *dup;
int freeoldlist = 0;
if (f != fr) {
freeoldlist = 1;
}
/* Since ast_audiohook_write may return a new frame, and the cur frame is
* an item in a list of frames, create a new list adding each cur frame back to it
* regardless if the cur frame changes or not. */
for (cur = f; cur; cur = AST_LIST_NEXT(cur, frame_list)) {
new_frame = ast_audiohook_write_list(chan, chan->audiohooks, AST_AUDIOHOOK_DIRECTION_WRITE, cur);
/* if this frame is different than cur, preserve the end of the list,
* free the old frames, and set cur to be the new frame */
if (new_frame != cur) {
/* doing an ast_frisolate here seems silly, but we are not guaranteed the new_frame
* isn't part of local storage, meaning if ast_audiohook_write is called multiple
* times it may override the previous frame we got from it unless we dup it */
if ((dup = ast_frisolate(new_frame))) {
AST_LIST_NEXT(dup, frame_list) = AST_LIST_NEXT(cur, frame_list);
if (freeoldlist) {
AST_LIST_NEXT(cur, frame_list) = NULL;
ast_frfree(cur);
}
if (new_frame != dup) {
ast_frfree(new_frame);
}
cur = dup;
}
}
/* now, regardless if cur is new or not, add it to the new list,
* if the new list has not started, cur will become the first item. */
if (prev) {
AST_LIST_NEXT(prev, frame_list) = cur;
} else {
f = cur; /* set f to be the beginning of our new list */
}
prev = cur;
}
}
/* If Monitor is running on this channel, then we have to write frames out there too */
/* the translator on chan->writetrans may have returned multiple frames
from the single frame we passed in; if so, feed each one of them to the
monitor */
if (chan->monitor && chan->monitor->write_stream) {
struct ast_frame *cur;
for (cur = f; cur; cur = AST_LIST_NEXT(cur, frame_list)) {
/* XXX must explain this code */
#ifndef MONITOR_CONSTANT_DELAY
int jump = chan->insmpl - chan->outsmpl - 4 * cur->samples;
if (jump >= 0) {
jump = calc_monitor_jump((chan->insmpl - chan->outsmpl), ast_format_rate(f->subclass.codec), ast_format_rate(chan->monitor->read_stream->fmt->format));
if (ast_seekstream(chan->monitor->write_stream, jump, SEEK_FORCECUR) == -1)
ast_log(LOG_WARNING, "Failed to perform seek in monitoring write stream, synchronization between the files may be broken\n");
chan->outsmpl += (chan->insmpl - chan->outsmpl) + cur->samples;
} else {
chan->outsmpl += cur->samples;
}
#else
int jump = calc_monitor_jump((chan->insmpl - chan->outsmpl), ast_format_rate(f->subclass.codec), ast_format_rate(chan->monitor->read_stream->fmt->format));
if (jump - MONITOR_DELAY >= 0) {
if (ast_seekstream(chan->monitor->write_stream, jump - cur->samples, SEEK_FORCECUR) == -1)
ast_log(LOG_WARNING, "Failed to perform seek in monitoring write stream, synchronization between the files may be broken\n");
chan->outsmpl += chan->insmpl - chan->outsmpl;
} else {
chan->outsmpl += cur->samples;
}
#endif
if (chan->monitor->state == AST_MONITOR_RUNNING) {
if (ast_writestream(chan->monitor->write_stream, cur) < 0)
ast_log(LOG_WARNING, "Failed to write data to channel monitor write stream\n");
}
}
}
/* the translator on chan->writetrans may have returned multiple frames
from the single frame we passed in; if so, feed each one of them to the
channel, freeing each one after it has been written */
if ((f != fr) && AST_LIST_NEXT(f, frame_list)) {
struct ast_frame *cur, *next;
unsigned int skip = 0;
for (cur = f, next = AST_LIST_NEXT(cur, frame_list);
cur;
cur = next, next = cur ? AST_LIST_NEXT(cur, frame_list) : NULL) {
if (!skip) {
if ((res = chan->tech->write(chan, cur)) < 0) {
chan->_softhangup |= AST_SOFTHANGUP_DEV;
skip = 1;
} else if (next) {
/* don't do this for the last frame in the list,
as the code outside the loop will do it once
*/
chan->fout = FRAMECOUNT_INC(chan->fout);
}
}
ast_frfree(cur);
}
/* reset f so the code below doesn't attempt to free it */
f = NULL;
} else {
res = chan->tech->write(chan, f);
}
break;
case AST_FRAME_NULL:
case AST_FRAME_IAX:
/* Ignore these */
res = 0;
break;
default:
/* At this point, fr is the incoming frame and f is NULL. Channels do
* not expect to get NULL as a frame pointer and will segfault. Hence,
* we output the original frame passed in. */
res = chan->tech->write(chan, fr);
break;
}
if (f && f != fr)
ast_frfree(f);
ast_clear_flag(chan, AST_FLAG_BLOCKING);
/* Consider a write failure to force a soft hangup */
if (res < 0) {
chan->_softhangup |= AST_SOFTHANGUP_DEV;
} else {
chan->fout = FRAMECOUNT_INC(chan->fout);
}
done:
if (chan->audiohooks && ast_audiohook_write_list_empty(chan->audiohooks)) {
/* The list gets recreated if audiohooks are added again later */
ast_audiohook_detach_list(chan->audiohooks);
chan->audiohooks = NULL;
}
ast_channel_unlock(chan);
return res;
}
| int ast_write_text | ( | struct ast_channel * | chan, |
| struct ast_frame * | frame | ||
| ) |
Write text frame to a channel This function writes the given frame to the indicated channel.
- Parameters:
-
chan destination channel of the frame frame frame that will be written
- Returns:
- It returns 1 on success, 0 if not implemented, and -1 on failure.
| int ast_write_video | ( | struct ast_channel * | chan, |
| struct ast_frame * | frame | ||
| ) |
Write video frame to a channel This function writes the given frame to the indicated channel.
- Parameters:
-
chan destination channel of the frame frame frame that will be written
- Returns:
- It returns 1 on success, 0 if not implemented, and -1 on failure.
Definition at line 4652 of file channel.c.
References ast_write(), ast_channel::tech, and ast_channel_tech::write_video.
{
int res;
if (!chan->tech->write_video)
return 0;
res = ast_write(chan, fr);
if (!res)
res = 1;
return res;
}
| const char* channelreloadreason2txt | ( | enum channelreloadreason | reason | ) |
Convert enum channelreloadreason to text string for manager event.
- Parameters:
-
reason The reason for reload (manager, cli, start etc)
\ brief Convert channel reloadreason (ENUM) to text string for manager event
Definition at line 8066 of file channel.c.
References CHANNEL_CLI_RELOAD, CHANNEL_MODULE_LOAD, and CHANNEL_MODULE_RELOAD.
Referenced by reload_config().
{
switch (reason) {
case CHANNEL_MODULE_LOAD:
return "LOAD (Channel module load)";
case CHANNEL_MODULE_RELOAD:
return "RELOAD (Channel module reload)";
case CHANNEL_CLI_RELOAD:
return "CLIRELOAD (Channel module reload by CLI command)";
default:
return "MANAGERRELOAD (Channel module reload by manager)";
}
};
Variable Documentation
| struct ast_channel_tech ast_kill_tech |
Kill the channel channel driver technology descriptor.
The purpose of this channel technology is to encourage the channel to hangup as quickly as possible.
- Note:
- Used by DTMF atxfer and zombie channels.
Definition at line 653 of file channel.c.
Referenced by ast_do_masquerade().
| unsigned long global_fin |
The current value of the debug flags is stored in the two variables global_fin and global_fout (declared in main/channel.c)
Definition at line 97 of file channel.c.
Referenced by __ast_channel_alloc_ap(), and handle_core_set_debug_channel().
| unsigned long global_fout |
Definition at line 97 of file channel.c.
Referenced by __ast_channel_alloc_ap(), and handle_core_set_debug_channel().
