?? cpi_circlebuffer.h
字號:
typedef void* CP_HCIRCLEBUFFER;
typedef void (*pfn_CircleBufferUninitialise)(CP_HCIRCLEBUFFER bBuffer);
//
typedef void (*pfn_CircleBufferWrite)(CP_HCIRCLEBUFFER bBuffer, const void* pSourceBuffer, const unsigned int iNumBytes);
typedef BOOL (*pfn_CircleBufferRead)(CP_HCIRCLEBUFFER bBuffer, void* pDestBuffer, const unsigned int iBytesToRead, unsigned int* pbBytesRead);
typedef unsigned int (*pfn_CircleGetUsedSpace)(CP_HCIRCLEBUFFER bBuffer);
typedef unsigned int (*pfn_CircleGetFreeSpace)(CP_HCIRCLEBUFFER bBuffer);
typedef void (*pfn_CircleFlush)(CP_HCIRCLEBUFFER bBuffer);
typedef void (*pfn_CircleSetComplete)(CP_HCIRCLEBUFFER bBuffer);
typedef BOOL (*pfn_CircleIsComplete)(CP_HCIRCLEBUFFER bBuffer);
//
typedef struct _CPs_CircleBuffer
{
pfn_CircleBufferUninitialise Uninitialise;
pfn_CircleBufferWrite Write;
pfn_CircleBufferRead Read;
pfn_CircleFlush Flush;
pfn_CircleGetUsedSpace GetUsedSize;
pfn_CircleGetFreeSpace GetFreeSize;
pfn_CircleSetComplete SetComplete;
pfn_CircleIsComplete IsComplete;
BYTE* m_pBuffer;
unsigned int m_iBufferSize;
unsigned int m_iReadCursor;
unsigned int m_iWriteCursor;
HANDLE m_evtDataAvailable;
CRITICAL_SECTION m_csCircleBuffer;
BOOL m_bComplete;
} CPs_CircleBuffer;
//
////////////////////////////////////////////////////////////////////////////////
CPs_CircleBuffer* CP_CreateCircleBuffer(const unsigned int iBufferSize);
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