capabilities.hpp 4.9 KB

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  1. /*
  2. * Distributed under the Boost Software License, Version 1.0.
  3. * (See accompanying file LICENSE_1_0.txt or copy at
  4. * http://www.boost.org/LICENSE_1_0.txt)
  5. *
  6. * Copyright (c) 2014 Andrey Semashev
  7. */
  8. /*!
  9. * \file atomic/capabilities.hpp
  10. *
  11. * This header defines feature capabilities macros.
  12. */
  13. #ifndef BOOST_ATOMIC_CAPABILITIES_HPP_INCLUDED_
  14. #define BOOST_ATOMIC_CAPABILITIES_HPP_INCLUDED_
  15. #include <boost/atomic/detail/config.hpp>
  16. #include <boost/atomic/detail/platform.hpp>
  17. #include <boost/atomic/detail/int_sizes.hpp>
  18. #if !defined(BOOST_ATOMIC_EMULATED)
  19. #include BOOST_ATOMIC_DETAIL_HEADER(boost/atomic/detail/caps_)
  20. #endif
  21. #ifdef BOOST_HAS_PRAGMA_ONCE
  22. #pragma once
  23. #endif
  24. #ifndef BOOST_ATOMIC_INT8_LOCK_FREE
  25. #define BOOST_ATOMIC_INT8_LOCK_FREE 0
  26. #endif
  27. #ifndef BOOST_ATOMIC_INT16_LOCK_FREE
  28. #define BOOST_ATOMIC_INT16_LOCK_FREE 0
  29. #endif
  30. #ifndef BOOST_ATOMIC_INT32_LOCK_FREE
  31. #define BOOST_ATOMIC_INT32_LOCK_FREE 0
  32. #endif
  33. #ifndef BOOST_ATOMIC_INT64_LOCK_FREE
  34. #define BOOST_ATOMIC_INT64_LOCK_FREE 0
  35. #endif
  36. #ifndef BOOST_ATOMIC_INT128_LOCK_FREE
  37. #define BOOST_ATOMIC_INT128_LOCK_FREE 0
  38. #endif
  39. #ifndef BOOST_ATOMIC_CHAR_LOCK_FREE
  40. #define BOOST_ATOMIC_CHAR_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE
  41. #endif
  42. #ifndef BOOST_ATOMIC_CHAR16_T_LOCK_FREE
  43. #define BOOST_ATOMIC_CHAR16_T_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
  44. #endif
  45. #ifndef BOOST_ATOMIC_CHAR32_T_LOCK_FREE
  46. #define BOOST_ATOMIC_CHAR32_T_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
  47. #endif
  48. #ifndef BOOST_ATOMIC_WCHAR_T_LOCK_FREE
  49. #if BOOST_ATOMIC_DETAIL_SIZEOF_WCHAR_T == 1
  50. #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE
  51. #elif BOOST_ATOMIC_DETAIL_SIZEOF_WCHAR_T == 2
  52. #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
  53. #elif BOOST_ATOMIC_DETAIL_SIZEOF_WCHAR_T == 4
  54. #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
  55. #elif BOOST_ATOMIC_DETAIL_SIZEOF_WCHAR_T == 8
  56. #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE
  57. #else
  58. #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE 0
  59. #endif
  60. #endif
  61. #ifndef BOOST_ATOMIC_SHORT_LOCK_FREE
  62. #if BOOST_ATOMIC_DETAIL_SIZEOF_SHORT == 1
  63. #define BOOST_ATOMIC_SHORT_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE
  64. #elif BOOST_ATOMIC_DETAIL_SIZEOF_SHORT == 2
  65. #define BOOST_ATOMIC_SHORT_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
  66. #elif BOOST_ATOMIC_DETAIL_SIZEOF_SHORT == 4
  67. #define BOOST_ATOMIC_SHORT_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
  68. #elif BOOST_ATOMIC_DETAIL_SIZEOF_SHORT == 8
  69. #define BOOST_ATOMIC_SHORT_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE
  70. #else
  71. #define BOOST_ATOMIC_SHORT_LOCK_FREE 0
  72. #endif
  73. #endif
  74. #ifndef BOOST_ATOMIC_INT_LOCK_FREE
  75. #if BOOST_ATOMIC_DETAIL_SIZEOF_INT == 1
  76. #define BOOST_ATOMIC_INT_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE
  77. #elif BOOST_ATOMIC_DETAIL_SIZEOF_INT == 2
  78. #define BOOST_ATOMIC_INT_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
  79. #elif BOOST_ATOMIC_DETAIL_SIZEOF_INT == 4
  80. #define BOOST_ATOMIC_INT_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
  81. #elif BOOST_ATOMIC_DETAIL_SIZEOF_INT == 8
  82. #define BOOST_ATOMIC_INT_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE
  83. #else
  84. #define BOOST_ATOMIC_INT_LOCK_FREE 0
  85. #endif
  86. #endif
  87. #ifndef BOOST_ATOMIC_LONG_LOCK_FREE
  88. #if BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 1
  89. #define BOOST_ATOMIC_LONG_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE
  90. #elif BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 2
  91. #define BOOST_ATOMIC_LONG_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
  92. #elif BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 4
  93. #define BOOST_ATOMIC_LONG_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
  94. #elif BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 8
  95. #define BOOST_ATOMIC_LONG_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE
  96. #else
  97. #define BOOST_ATOMIC_LONG_LOCK_FREE 0
  98. #endif
  99. #endif
  100. #ifndef BOOST_ATOMIC_LLONG_LOCK_FREE
  101. #if BOOST_ATOMIC_DETAIL_SIZEOF_LLONG == 1
  102. #define BOOST_ATOMIC_LLONG_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE
  103. #elif BOOST_ATOMIC_DETAIL_SIZEOF_LLONG == 2
  104. #define BOOST_ATOMIC_LLONG_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
  105. #elif BOOST_ATOMIC_DETAIL_SIZEOF_LLONG == 4
  106. #define BOOST_ATOMIC_LLONG_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
  107. #elif BOOST_ATOMIC_DETAIL_SIZEOF_LLONG == 8
  108. #define BOOST_ATOMIC_LLONG_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE
  109. #else
  110. #define BOOST_ATOMIC_LLONG_LOCK_FREE 0
  111. #endif
  112. #endif
  113. #ifndef BOOST_ATOMIC_POINTER_LOCK_FREE
  114. #if (BOOST_ATOMIC_DETAIL_SIZEOF_POINTER + 0) == 8
  115. #define BOOST_ATOMIC_POINTER_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE
  116. #elif (BOOST_ATOMIC_DETAIL_SIZEOF_POINTER + 0) == 4
  117. #define BOOST_ATOMIC_POINTER_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
  118. #else
  119. #define BOOST_ATOMIC_POINTER_LOCK_FREE 0
  120. #endif
  121. #endif
  122. #define BOOST_ATOMIC_ADDRESS_LOCK_FREE BOOST_ATOMIC_POINTER_LOCK_FREE
  123. #ifndef BOOST_ATOMIC_BOOL_LOCK_FREE
  124. // We store bools in 1-byte storage in all backends
  125. #define BOOST_ATOMIC_BOOL_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE
  126. #endif
  127. #ifndef BOOST_ATOMIC_FLAG_LOCK_FREE
  128. #define BOOST_ATOMIC_FLAG_LOCK_FREE BOOST_ATOMIC_BOOL_LOCK_FREE
  129. #endif
  130. #ifndef BOOST_ATOMIC_THREAD_FENCE
  131. #define BOOST_ATOMIC_THREAD_FENCE 0
  132. #endif
  133. #ifndef BOOST_ATOMIC_SIGNAL_FENCE
  134. #define BOOST_ATOMIC_SIGNAL_FENCE 0
  135. #endif
  136. #endif // BOOST_ATOMIC_CAPABILITIES_HPP_INCLUDED_