28 lines
911 B
C
28 lines
911 B
C
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/*
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* circbuf.h
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*/
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/* Structure to manage the circular input buffer.
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*/
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typedef struct circularBuffer_tag
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{
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HANDLE hSelf; /* handle to this structure */
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HANDLE hBuffer; /* buffer handle */
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WORD wError; /* error flags */
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DWORD dwSize; /* buffer size (in EVENTS) */
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DWORD dwCount; /* byte count (in EVENTS) */
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LPEVENT lpStart; /* ptr to start of buffer */
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LPEVENT lpEnd; /* ptr to end of buffer (last byte + 1) */
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LPEVENT lpHead; /* ptr to head (next location to fill) */
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LPEVENT lpTail; /* ptr to tail (next location to empty) */
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} CIRCULARBUFFER;
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typedef CIRCULARBUFFER FAR *LPCIRCULARBUFFER;
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/* Function prototypes
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*/
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LPCIRCULARBUFFER AllocCircularBuffer(DWORD dwSize);
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void FreeCircularBuffer(LPCIRCULARBUFFER lpBuf);
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WORD FAR PASCAL GetEvent(LPCIRCULARBUFFER lpBuf, LPEVENT lpEvent);
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