mutex.cpp 2.2 KB

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  1. //-----------------------------------------------------------------------------
  2. // Copyright (c) 2012 GarageGames, LLC
  3. //
  4. // Permission is hereby granted, free of charge, to any person obtaining a copy
  5. // of this software and associated documentation files (the "Software"), to
  6. // deal in the Software without restriction, including without limitation the
  7. // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  8. // sell copies of the Software, and to permit persons to whom the Software is
  9. // furnished to do so, subject to the following conditions:
  10. //
  11. // The above copyright notice and this permission notice shall be included in
  12. // all copies or substantial portions of the Software.
  13. //
  14. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15. // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16. // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17. // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18. // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  19. // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  20. // IN THE SOFTWARE.
  21. //-----------------------------------------------------------------------------
  22. #include "console/console.h"
  23. #include "platformX86UNIX/platformX86UNIX.h"
  24. #include "platform/threads/mutex.h"
  25. #include "core/util/safeDelete.h"
  26. #include <pthread.h>
  27. #include <sys/stat.h>
  28. #include <unistd.h>
  29. #include <fcntl.h>
  30. #include <errno.h>
  31. struct PlatformMutexData
  32. {
  33. pthread_mutex_t mutex;
  34. };
  35. Mutex::Mutex()
  36. {
  37. mData = new PlatformMutexData;
  38. pthread_mutexattr_t attr;
  39. pthread_mutexattr_init(&attr);
  40. pthread_mutexattr_settype(&attr,PTHREAD_MUTEX_RECURSIVE);
  41. pthread_mutex_init(&mData->mutex, &attr);
  42. }
  43. Mutex::~Mutex()
  44. {
  45. AssertFatal(mData, "Mutex::destroyMutex: invalid mutex");
  46. pthread_mutex_destroy(&mData->mutex);
  47. SAFE_DELETE(mData);
  48. }
  49. bool Mutex::lock(bool block)
  50. {
  51. if(mData == NULL)
  52. return false;
  53. if(block)
  54. {
  55. return pthread_mutex_lock(&mData->mutex) == 0;
  56. }
  57. else
  58. {
  59. return pthread_mutex_trylock(&mData->mutex) == 0;
  60. }
  61. }
  62. void Mutex::unlock()
  63. {
  64. if(mData == NULL)
  65. return;
  66. pthread_mutex_unlock(&mData->mutex);
  67. }