TrcMemAccCache Class Reference

#include <trc_mem_acc_cache.h>

Public Member Functions
	TrcMemAccCache ()
	~TrcMemAccCache ()
ocsd_err_t	enableCaching (bool bEnable)
ocsd_err_t	setCacheSizes (const uint16_t page_size, const int nr_pages, const bool err_on_limit=false)
const bool	enabled () const
const bool	enabled_for_size (const uint32_t reqSize) const
void	invalidateAll ()
void	invalidateByTraceID (int8_t trcID)
void	clearPage (cache_block_t *page)
ocsd_err_t	readBytesFromCache (TrcMemAccessorBase *p_accessor, const ocsd_vaddr_t address, const ocsd_mem_space_acc_t mem_space, const uint8_t trcID, uint32_t *numBytes, uint8_t *byteBuffer)
void	setErrorLog (ITraceErrorLog *log)
void	logAndClearCounts ()

Static Public Member Functions
static void	getenvMemaccCacheSizes (bool &enable, int &page_size, int &num_pages)

Detailed Description

class TrcMemAccCache - cache small amounts of data from accessors to speed up decode.

Reduce the need to read files / make callbacks into clients when walking memory images.

Caching is done on a per Core/Trace ID basis - all caches from that ID are invalidated when a context switch appears on the core. This means that we do not account for memory spaces in the cache pages as these only change via a context switch.

Memory space is used on cache miss if reading data from the underlying accessor (file / callback).

Definition at line 78 of file trc_mem_acc_cache.h.

Constructor & Destructor Documentation

TrcMemAccCache()

TrcMemAccCache::TrcMemAccCache ( )

inline

Definition at line 139 of file trc_mem_acc_cache.h.

~TrcMemAccCache()

TrcMemAccCache::~TrcMemAccCache ( )

inline

Definition at line 147 of file trc_mem_acc_cache.h.

Member Function Documentation

clearPage()

void TrcMemAccCache::clearPage ( cache_block_t *  page )

inline

Definition at line 190 of file trc_mem_acc_cache.h.

enableCaching()

ocsd_err_t TrcMemAccCache::enableCaching

(

bool

bEnable

)

enabled()

const bool TrcMemAccCache::enabled ( ) const

inline

Definition at line 89 of file trc_mem_acc_cache.h.

enabled_for_size()

const bool TrcMemAccCache::enabled_for_size ( const uint32_t  reqSize ) const

inline

Definition at line 90 of file trc_mem_acc_cache.h.

getenvMemaccCacheSizes()

static void TrcMemAccCache::getenvMemaccCacheSizes ( bool &  enable, int &  page_size, int &  num_pages  )

static

invalidateAll()

void TrcMemAccCache::invalidateAll

(

)

invalidateByTraceID()

void TrcMemAccCache::invalidateByTraceID

(

int8_t

trcID

)

logAndClearCounts()

void TrcMemAccCache::logAndClearCounts

(

)

readBytesFromCache()

ocsd_err_t TrcMemAccCache::readBytesFromCache	(	TrcMemAccessorBase *	p_accessor,
		const ocsd_vaddr_t	address,
		const ocsd_mem_space_acc_t	mem_space,
		const uint8_t	trcID,
		uint32_t *	numBytes,
		uint8_t *	byteBuffer
	)

read bytes from cache if possible - load new page if needed from underlying accessor, bail out if data not available

setCacheSizes()

ocsd_err_t TrcMemAccCache::setCacheSizes	(	const uint16_t	page_size,
		const int	nr_pages,
		const bool	err_on_limit = false
	)

setErrorLog()

void TrcMemAccCache::setErrorLog

(

ITraceErrorLog *

log

)

---

The documentation for this class was generated from the following file:

• /build/libopencsd-8WV101/libopencsd-1.5.5/decoder/include/mem_acc/trc_mem_acc_cache.h