func_sysinfo.c File Reference

#include "asterisk.h"
#include <sys/sysinfo.h>
#include "asterisk/module.h"
#include "asterisk/pbx.h"

Include dependency graph for func_sysinfo.c:

Go to the source code of this file.

Functions
static void	__reg_module (void)
static void	__unreg_module (void)
static int	load_module (void)
static int	sysinfo_helper (struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len)
static int	unload_module (void)
Variables
static struct ast_module_info	__mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "System information related functions" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_DEFAULT, }
static struct ast_module_info *	ast_module_info = &__mod_info
static struct ast_custom_function	sysinfo_function

---

Detailed Description

SYSINFO function to return various system data.

Note:

Inspiration and Guidance from Russell

Author:

Jeff Peeler

Definition in file func_sysinfo.c.

---

Function Documentation

static void __reg_module

(

void

)

[static]

Definition at line 155 of file func_sysinfo.c.

static void __unreg_module

(

void

)

[static]

Definition at line 155 of file func_sysinfo.c.

static int load_module

(

void

)

[static]

Definition at line 150 of file func_sysinfo.c.

References ast_custom_function_register.

{
   return ast_custom_function_register(&sysinfo_function);
}

static int sysinfo_helper	(	struct ast_channel *	chan,
		const char *	cmd,
		char *	data,
		char *	buf,
		size_t	len
	)		[static]

Definition at line 94 of file func_sysinfo.c.

References ast_active_calls(), ast_log(), ast_strlen_zero(), getloadavg(), LOG_ERROR, and LOG_WARNING.

{
#if defined(HAVE_SYSINFO)
   struct sysinfo sys_info;
   if (sysinfo(&sys_info)) {
      ast_log(LOG_ERROR, "FAILED to retrieve system information\n");
      return -1;
   }
#endif
   if (ast_strlen_zero(data)) {
      ast_log(LOG_WARNING, "Syntax: ${SYSINFO(<parameter>)} - missing argument!)\n");
      return -1;
   } else if (!strcasecmp("loadavg", data)) {
      double curloadavg;
      getloadavg(&curloadavg, 1);
      snprintf(buf, len, "%f", curloadavg);
   } else if (!strcasecmp("numcalls", data)) {
      snprintf(buf, len, "%d", ast_active_calls());
   }
#if defined(HAVE_SYSINFO)
   else if (!strcasecmp("uptime", data)) {             /* in hours */
      snprintf(buf, len, "%ld", sys_info.uptime/3600);
   } else if (!strcasecmp("totalram", data)) {         /* in KiB */
      snprintf(buf, len, "%ld",(sys_info.totalram * sys_info.mem_unit)/1024);
   } else if (!strcasecmp("freeram", data)) {          /* in KiB */
      snprintf(buf, len, "%ld",(sys_info.freeram * sys_info.mem_unit)/1024);
   } else if (!strcasecmp("bufferram", data)) {        /* in KiB */
      snprintf(buf, len, "%ld",(sys_info.bufferram * sys_info.mem_unit)/1024);
   } else if (!strcasecmp("totalswap", data)) {        /* in KiB */
      snprintf(buf, len, "%ld",(sys_info.totalswap * sys_info.mem_unit)/1024);
   } else if (!strcasecmp("freeswap", data)) {         /* in KiB */
      snprintf(buf, len, "%ld",(sys_info.freeswap * sys_info.mem_unit)/1024);
   } else if (!strcasecmp("numprocs", data)) {
      snprintf(buf, len, "%d", sys_info.procs);
   }
#endif
   else {
      ast_log(LOG_ERROR, "Unknown sysinfo parameter type '%s'.\n", data);
      return -1;
   }
      
   return 0;
}

static int unload_module

(

void

)

[static]

Definition at line 145 of file func_sysinfo.c.

References ast_custom_function_unregister().

{
   return ast_custom_function_unregister(&sysinfo_function);
}

---

Variable Documentation

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "System information related functions" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_DEFAULT, } [static]

Definition at line 155 of file func_sysinfo.c.

struct ast_module_info* ast_module_info = &__mod_info [static]

Definition at line 155 of file func_sysinfo.c.

struct ast_custom_function sysinfo_function [static]

Initial value:

 {
   .name = "SYSINFO",
   .read = sysinfo_helper,
   .read_max = 22,
}

Definition at line 139 of file func_sysinfo.c.