no longer needed

This commit is contained in:
Jeff Hill
1996-06-19 19:19:28 +00:00
parent 16e9dc781a
commit ad033dd8c2

View File

@@ -1,127 +0,0 @@
/*
* $Id$
*
* Shared Buffer Library Header File
*
* Author: Jeffrey O. Hill
* johill@lanl.gov
* (505) 665 1831
*
* Experimental Physics and Industrial Control System (EPICS)
*
* Copyright 1991, the Regents of the University of California,
* and the University of Chicago Board of Governors.
*
* This software was produced under U.S. Government contracts:
* (W-7405-ENG-36) at the Los Alamos National Laboratory,
* and (W-31-109-ENG-38) at Argonne National Laboratory.
*
* Initial development by:
* The Controls and Automation Group (AT-8)
* Ground Test Accelerator
* Accelerator Technology Division
* Los Alamos National Laboratory
*
* Co-developed with
* The Controls and Computing Group
* Accelerator Systems Division
* Advanced Photon Source
* Argonne National Laboratory
*
* Modification Log:
* -----------------
* $Log$
* Revision 1.1 1995/09/29 21:42:26 jhill
* installed into CVS
*
*
* NOTES:
*/
#ifndef INCsbufLibh
#define INCsbufLibh
#include <errMdef.h>
#ifndef READONLY
#define READONLY const
#endif
typedef unsigned long sbufIndex;
typedef int sbufStatus;
typedef void userFreeFunc(void *pUserArg);
typedef READONLY void *SBUFID;
typedef READONLY void *SSEGID;
#ifdef __STDC__
SBUFID sbufCreate (void);
sbufStatus sbufDelete (SBUFID id);
void sbufShowAll (void);
void sbufShow (SBUFID id);
sbufIndex sbufSize (SBUFID id);
/*
*
* To avoid redundant copying of large buffers
* the buffer provider is required to supply a
* function pointer (pFree) which is called when
* consumer is finished with the buffer.
* The provider must _not_ change or free the
* buffer until the pFree call back is called.
*/
/*
* data segment is added to the end of the sbuf
*/
sbufStatus sbufAppend (SBUFID id, READONLY void *pData,
sbufIndex dataSize, userFreeFunc *pFree, READONLY void *pFreeArg);
/*
* data segment is inserted at the beginning of the sbuf
*/
sbufStatus sbufPrefix (SBUFID id, READONLY void *pData,
sbufIndex dataSize, userFreeFunc *pFree, READONLY void *pFreeArg);
/*
* A shared segment is removed from the beginning of a shared buffer
* (it is the application's responsability to dispose of the
* segment when it is finished with it)
*/
sbufStatus sbufPopPrefix(SBUFID sBufId, SSEGID *pSSegId,
READONLY void **ppData, sbufIndex *pDataSize);
/*
* A shared segment is removed from the end of a shared buffer
* (it is the application's responsability to dispose of the
* segment when it is finished with it)
*/
sbufStatus sbufPopAppendix(SBUFID sBufId, SSEGID *pSSegId,
READONLY void **ppData, sbufIndex *pDataSize);
/*
* Delete a segment
*
* (free routine is called)
*/
sbufStatus sbufSegDelete (SSEGID id);
#else /*__STDC__*/
SBUFID sbufCreate ();
sbufStatus sbufDelete ();
sbufStatus sbufShowAll ();
sbufStatus sbufShow ();
sbufIndex sbufSize ();
sbufStatus sbufAppend ();
sbufStatus sbufPrefix ();
sbufStatus sbufPopPrefix ();
sbufStatus sbufPopAppendix ();
#endif /*__STDC__*/
/*
* Status returned by sbufLib functions
*/
#define S_sbuf_success 0
#define S_sbuf_noMemory (M_sbuf | 1) /*Memory allocation failed*/
#define S_sbuf_uknId (M_sbuf | 2) /*Unknown identifier*/
#define S_sbuf_empty (M_sbuf | 3) /*shared buffer is empty*/
#endif /*INCsbufLibh*/