src/egl/main/eglmutex.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 Chia-I Wu <olvaffe@gmail.com>
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
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  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
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  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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  26  **************************************************************************/
  27
  28
  29 #ifndef EGLMUTEX_INCLUDED
  30 #define EGLMUTEX_INCLUDED
  31
  32 #include "eglcompiler.h"
  33
  34 #ifdef PTHREADS
  35 #include <pthread.h>
  36
  37 typedef pthread_mutex_t _EGLMutex;
  38
  39 static INLINE void _eglInitMutex(_EGLMutex *m)
  40 {
  41    pthread_mutex_init(m, NULL);
  42 }
  43
  44 static INLINE void
  45 _eglDestroyMutex(_EGLMutex *m)
  46 {
  47    pthread_mutex_destroy(m);
  48 }
  49
  50 static INLINE void
  51 _eglLockMutex(_EGLMutex *m)
  52 {
  53    pthread_mutex_lock(m);
  54 }
  55
  56 static INLINE void
  57 _eglUnlockMutex(_EGLMutex *m)
  58 {
  59    pthread_mutex_unlock(m);
  60 }
  61
  62 #define _EGL_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
  63 #define _EGL_DECLARE_MUTEX(m) \
  64    _EGLMutex m = _EGL_MUTEX_INITIALIZER
  65
  66 #else
  67
  68 typedef int _EGLMutex;
  69 static INLINE void _eglInitMutex(_EGLMutex *m) { (void) m; }
  70 static INLINE void _eglDestroyMutex(_EGLMutex *m) { (void) m; }
  71 static INLINE void _eglLockMutex(_EGLMutex *m) { (void) m; }
  72 static INLINE void _eglUnlockMutex(_EGLMutex *m) { (void) m; }
  73
  74 #define _EGL_MUTEX_INITIALIZER 0
  75 #define _EGL_DECLARE_MUTEX(m) \
  76    _EGLMutex m = _EGL_MUTEX_INITIALIZER
  77
  78 #endif
  79
  80 #endif /* EGLMUTEX_INCLUDED */