Cache.hpp File Reference

#include <map>

Go to the source code of this file.

Classes
struct	iTaSC::Timestamp
class	iTaSC::Cache
struct	iTaSC::CacheEntry
struct	iTaSC::CacheChannel
struct	iTaSC::CacheBlock
struct	iTaSC::CacheItem
struct	iTaSC::CacheBufferHeader
struct	iTaSC::CacheBuffer

Namespaces
namespace	iTaSC

Macros
#define	CACHE_LOOKUP_TABLE_SIZE   128
#define	CACHE_DEFAULT_BUFFER_SIZE   32768
#define	CACHE_CHANNEL_EXTEND_SIZE   10
#define	CACHE_MAX_ITEM_SIZE   0x3FFF0
#define	CACHE_ITEM_GAPB(item)   (unsigned int)(((size_t)item+sizeof(CacheItem))&(sizeof(void*)-1))
#define	CACHE_ITEM_DATA_POINTER(item)   (void*)((unsigned char*)item+sizeof(CacheItem)+CACHE_ITEM_GAPB(item))
#define	CACHE_ITEM_SIZEW(item, length)   (unsigned int)((sizeof(CacheItem)+CACHE_ITEM_GAPB(item)+(((length)+3)&~0x3))>>2)
#define	CACHE_NEXT_ITEM(item)   ((item)+(item)->m_sizeW)
#define	CACHE_BLOCK_ITEM_ADDR(chan, buf, block)   (&(buf)->m_firstItem+(((unsigned int)(block)<<chan->m_positionToBlockShiftW)+(buf)->lookup[block].m_offsetW))
#define	CACHE_ITEM_ADDR(buf, pos)   (&(buf)->m_firstItem+(pos))
#define	CACHE_ITEM_POSITIONW(buf, item)   (unsigned int)(item-&buf->m_firstItem)
#define	CACHE_HEADER
#define	CACHE_BUFFER_HEADER_SIZE   (sizeof(struct CacheBufferHeader))

Typedefs
typedef unsigned int	iTaSC::CacheTS

Functions
void	iTaSC::setCacheTimestamp (Timestamp &timestamp)

Macro Definition Documentation

CACHE_BLOCK_ITEM_ADDR

#define CACHE_BLOCK_ITEM_ADDR	(		chan,
			buf,
			block )   (&(buf)->m_firstItem+(((unsigned int)(block)<<chan->m_positionToBlockShiftW)+(buf)->lookup[block].m_offsetW))

Definition at line 29 of file Cache.hpp.

Referenced by iTaSC::CacheChannel::_findBlock(), iTaSC::Cache::addCacheItem(), iTaSC::Cache::clearCacheFrom(), iTaSC::CacheChannel::findItemEarlier(), and iTaSC::CacheChannel::findItemOrLater().

CACHE_BUFFER_HEADER_SIZE

#define CACHE_BUFFER_HEADER_SIZE   (sizeof(struct CacheBufferHeader))

Definition at line 218 of file Cache.hpp.

Referenced by iTaSC::CacheChannel::allocBuffer().

CACHE_CHANNEL_EXTEND_SIZE

#define CACHE_CHANNEL_EXTEND_SIZE   10

Definition at line 18 of file Cache.hpp.

Referenced by iTaSC::Cache::addChannel().

CACHE_DEFAULT_BUFFER_SIZE

#define CACHE_DEFAULT_BUFFER_SIZE   32768

Definition at line 17 of file Cache.hpp.

Referenced by iTaSC::Cache::addChannel().

CACHE_HEADER

#define CACHE_HEADER

Value:

    struct CacheBuffer *m_next;     \
    unsigned int m_firstTimestamp;  \
    unsigned int m_lastTimestamp;       \
                                    \
    unsigned int m_lastItemPositionW;   \
    unsigned int m_firstFreePositionW;\
    struct CacheBlock lookup[CACHE_LOOKUP_TABLE_SIZE]

Definition at line 206 of file Cache.hpp.

CACHE_ITEM_ADDR

#define CACHE_ITEM_ADDR	(		buf,
			pos )   (&(buf)->m_firstItem+(pos))

Definition at line 30 of file Cache.hpp.

Referenced by iTaSC::Cache::addCacheItem(), and iTaSC::CacheChannel::findItemEarlier().

CACHE_ITEM_DATA_POINTER

#define CACHE_ITEM_DATA_POINTER

(

item

)

(void*)((unsigned char*)item+sizeof(CacheItem)+CACHE_ITEM_GAPB(item))

Definition at line 24 of file Cache.hpp.

Referenced by iTaSC::Cache::addCacheItem(), iTaSC::Cache::addCacheVectorIfDifferent(), iTaSC::Cache::getCurrentCacheItem(), and iTaSC::Cache::getPreviousCacheItem().

CACHE_ITEM_GAPB

#define CACHE_ITEM_GAPB

(

item

)

(unsigned int)(((size_t)item+sizeof(CacheItem))&(sizeof(void*)-1))

Definition at line 22 of file Cache.hpp.

CACHE_ITEM_POSITIONW

#define CACHE_ITEM_POSITIONW	(		buf,
			item )   (unsigned int)(item-&buf->m_firstItem)

Definition at line 31 of file Cache.hpp.

Referenced by iTaSC::Cache::addCacheItem(), and iTaSC::Cache::clearCacheFrom().

CACHE_ITEM_SIZEW

#define CACHE_ITEM_SIZEW	(		item,
			length )   (unsigned int)((sizeof(CacheItem)+CACHE_ITEM_GAPB(item)+(((length)+3)&~0x3))>>2)

Definition at line 26 of file Cache.hpp.

Referenced by iTaSC::Cache::addCacheItem(), and iTaSC::Cache::addCacheVectorIfDifferent().

CACHE_LOOKUP_TABLE_SIZE

#define CACHE_LOOKUP_TABLE_SIZE   128

Definition at line 16 of file Cache.hpp.

Referenced by iTaSC::Cache::addChannel().

CACHE_MAX_ITEM_SIZE

#define CACHE_MAX_ITEM_SIZE   0x3FFF0

Definition at line 19 of file Cache.hpp.

CACHE_NEXT_ITEM

#define CACHE_NEXT_ITEM

(

item

)

((item)+(item)->m_sizeW)

Definition at line 28 of file Cache.hpp.

Referenced by iTaSC::Cache::addCacheItem(), iTaSC::Cache::clearCacheFrom(), iTaSC::CacheChannel::findItemEarlier(), and iTaSC::CacheChannel::findItemOrLater().