48 lines
1.8 KiB
C
48 lines
1.8 KiB
C
/*************************************************************************\
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* Copyright (c) 2002 The University of Chicago, as Operator of Argonne
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* National Laboratory.
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* Copyright (c) 2002 The Regents of the University of California, as
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* Operator of Los Alamos National Laboratory.
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* EPICS BASE Versions 3.13.7
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* and higher are distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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\*************************************************************************/
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/*epicsRingBytes.h */
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/* Author: Eric Norum & Marty Kraimer Date: 15JUL99 */
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#ifndef INCepicsRingBytesh
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#define INCepicsRingBytesh
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "shareLib.h"
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typedef void *epicsRingBytesId;
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epicsShareFunc epicsRingBytesId epicsShareAPI epicsRingBytesCreate(int nbytes);
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epicsShareFunc void epicsShareAPI epicsRingBytesDelete(epicsRingBytesId id);
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epicsShareFunc int epicsShareAPI epicsRingBytesGet(
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epicsRingBytesId id, char *value,int nbytes);
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epicsShareFunc int epicsShareAPI epicsRingBytesPut(
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epicsRingBytesId id, char *value,int nbytes);
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epicsShareFunc void epicsShareAPI epicsRingBytesFlush(epicsRingBytesId id);
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epicsShareFunc int epicsShareAPI epicsRingBytesFreeBytes(epicsRingBytesId id);
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epicsShareFunc int epicsShareAPI epicsRingBytesUsedBytes(epicsRingBytesId id);
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epicsShareFunc int epicsShareAPI epicsRingBytesSize(epicsRingBytesId id);
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epicsShareFunc int epicsShareAPI epicsRingBytesIsEmpty(epicsRingBytesId id);
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epicsShareFunc int epicsShareAPI epicsRingBytesIsFull(epicsRingBytesId id);
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#ifdef __cplusplus
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}
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#endif
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/* NOTES
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If there is only one writer it is not necessary to lock for put
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If there is a single reader it is not necessary to lock for puts
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*/
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#endif /* INCepicsRingBytesh */
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