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//========================================================================
//
// GMutex.h
//
// Portable mutex macros.
//
// Copyright 2002-2003 Glyph & Cog, LLC
//
//========================================================================
#ifndef GMUTEX_H
#define GMUTEX_H
// Usage:
//
// GMutex m;
// gInitMutex(&m);
// ...
// gLockMutex(&m);
// ... critical section ...
// gUnlockMutex(&m);
// ...
// gDestroyMutex(&m);
#ifdef WIN32
#include <windows.h>
typedef CRITICAL_SECTION GMutex;
#define gInitMutex(m) InitializeCriticalSection(m)
#define gDestroyMutex(m) DeleteCriticalSection(m)
#define gLockMutex(m) EnterCriticalSection(m)
#define gUnlockMutex(m) LeaveCriticalSection(m)
#else // assume pthreads
#include <pthread.h>
typedef pthread_mutex_t GMutex;
#define gInitMutex(m) pthread_mutex_init(m, NULL)
#define gDestroyMutex(m) pthread_mutex_destroy(m)
#define gLockMutex(m) pthread_mutex_lock(m)
#define gUnlockMutex(m) pthread_mutex_unlock(m)
#endif
#endif
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