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  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
  7.  * copy of this software and associated documentation files (the
  8.  * "Software"), to deal in the Software without restriction, including
  9.  * without limitation the rights to use, copy, modify, merge, publish,
  10.  * distribute, sub license, and/or sell copies of the Software, and to
  11.  * permit persons to whom the Software is furnished to do so, subject to
  12.  * the following conditions:
  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.
  17.  *
  18.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19.  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20.  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21.  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22.  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23.  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  24.  * DEALINGS IN THE SOFTWARE.
  25.  *
  26.  **************************************************************************/
  27.  
  28.  
  29. #ifndef EGLMUTEX_INCLUDED
  30. #define EGLMUTEX_INCLUDED
  31.  
  32. #include "eglcompiler.h"
  33.  
  34. #ifdef HAVE_PTHREAD
  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 */
  81.