rwlock.cpp 2.4 KB

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  1. /*
  2. * Copyright (C) 2011-2016 Intel Corporation. All rights reserved.
  3. *
  4. * Redistribution and use in source and binary forms, with or without
  5. * modification, are permitted provided that the following conditions
  6. * are met:
  7. *
  8. * * Redistributions of source code must retain the above copyright
  9. * notice, this list of conditions and the following disclaimer.
  10. * * Redistributions in binary form must reproduce the above copyright
  11. * notice, this list of conditions and the following disclaimer in
  12. * the documentation and/or other materials provided with the
  13. * distribution.
  14. * * Neither the name of Intel Corporation nor the names of its
  15. * contributors may be used to endorse or promote products derived
  16. * from this software without specific prior written permission.
  17. *
  18. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22. * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25. * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29. *
  30. */
  31. // rwlock.cpp: wrappers of Slim Reader/Writer (SRW) Locks
  32. #include "rwlock.h"
  33. #include <stdlib.h>
  34. void wtlock(prwlock_t lock)
  35. {
  36. int ret = pthread_rwlock_wrlock(lock);
  37. if(0 != ret)
  38. abort();
  39. }
  40. void wtunlock(prwlock_t lock)
  41. {
  42. int ret = pthread_rwlock_unlock(lock);
  43. if(0 != ret)
  44. abort();
  45. }
  46. void rdlock(prwlock_t lock)
  47. {
  48. int ret = pthread_rwlock_rdlock(lock);
  49. if(0 != ret)
  50. abort();
  51. }
  52. void rdunlock(prwlock_t lock)
  53. {
  54. int ret = pthread_rwlock_unlock(lock);
  55. if(0 != ret)
  56. abort();
  57. }
  58. void init_rwlock(prwlock_t lock)
  59. {
  60. //use the default attribute.
  61. int ret = pthread_rwlock_init(lock, NULL);
  62. if(0 != ret)
  63. abort();
  64. }
  65. void fini_rwlock(prwlock_t lock)
  66. {
  67. int ret = pthread_rwlock_destroy(lock);
  68. if(0 != ret)
  69. abort();
  70. }