filecache.h

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/* <LIC_AMD_STD>
 * Copyright (C) 2003-2005 Advanced Micro Devices, Inc.  All Rights Reserved.
 * 
 * Unless otherwise designated in writing, this software and any related 
 * documentation are the confidential proprietary information of AMD. 
 * THESE MATERIALS ARE PROVIDED "AS IS" WITHOUT ANY
 * UNLESS OTHERWISE NOTED IN WRITING, EXPRESS OR IMPLIED WARRANTY OF ANY 
 * KIND, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, 
 * NONINFRINGEMENT, TITLE, FITNESS FOR ANY PARTICULAR PURPOSE AND IN NO 
 * EVENT SHALL AMD OR ITS LICENSORS BE LIABLE FOR ANY DAMAGES WHATSOEVER. 
 * 
 * AMD does not assume any responsibility for any errors which may appear 
 * in the Materials nor any responsibility to support or update the
 * Materials.  AMD retains the right to modify the Materials at any time, 
 * without notice, and is not obligated to provide such modified 
 * Materials to you. AMD is not obligated to furnish, support, or make
 * any further information available to you.
 * </LIC_AMD_STD>  */
/* <CTL_AMD_STD>
 * </CTL_AMD_STD>  */
/* <DOC_AMD_STD>
 * </DOC_AMD_STD>  */
#ifndef _FILECACHE_H_
#define _FILECACHE_H_
#include <stdio.h>

#ifndef CFUNC
#  define CFUNC
#endif

#if defined(OS_Linux)
#  include <zlib.h>
#  define fopen gzopen
#  define fclose gzclose
//#  define fprintf gzprintf
typedef gzFile CachedFILE;
#else
typedef FILE *CachedFILE;
#endif

extern CFUNC void CriticalSectionInit();
extern CFUNC void CriticalSectionExit();

// A File Cache interface. The cache keeps a bunch of files open by
// name. It does not close the files until it needs to reuse the cache entry.
// This works really well for the MAE instrumentation that writes output for
// each macro block to a handful of different files. Without the cache, it
// closes (causing flush) each file for each macro block. With the cache, the
// system overhead goes way down.
extern CFUNC CachedFILE FileCacheGet(const char*);
extern CFUNC void FileCacheDone(CachedFILE);
#endif