pthreadtypes.h 4.5 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177
  1. /* Copyright (C) 2002,2003,2004,2005,2006,2007 Free Software Foundation, Inc.
  2. The GNU C Library is free software; you can redistribute it and/or
  3. modify it under the terms of the GNU Lesser General Public
  4. License as published by the Free Software Foundation; either
  5. version 2.1 of the License, or (at your option) any later version.
  6. The GNU C Library is distributed in the hope that it will be useful,
  7. but WITHOUT ANY WARRANTY; without even the implied warranty of
  8. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  9. Lesser General Public License for more details.
  10. You should have received a copy of the GNU Lesser General Public
  11. License along with the GNU C Library; if not, write to the Free
  12. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  13. 02111-1307 USA. */
  14. #ifndef _BITS_PTHREADTYPES_H
  15. #define _BITS_PTHREADTYPES_H 1
  16. #define __SIZEOF_PTHREAD_ATTR_T 36
  17. #define __SIZEOF_PTHREAD_MUTEX_T 24
  18. #define __SIZEOF_PTHREAD_MUTEXATTR_T 4
  19. #define __SIZEOF_PTHREAD_COND_T 48
  20. #define __SIZEOF_PTHREAD_COND_COMPAT_T 12
  21. #define __SIZEOF_PTHREAD_CONDATTR_T 4
  22. #define __SIZEOF_PTHREAD_RWLOCK_T 32
  23. #define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
  24. #define __SIZEOF_PTHREAD_BARRIER_T 20
  25. #define __SIZEOF_PTHREAD_BARRIERATTR_T 4
  26. /* Thread identifiers. The structure of the attribute type is not
  27. exposed on purpose. */
  28. typedef unsigned long int pthread_t;
  29. union pthread_attr_t
  30. {
  31. char __size[__SIZEOF_PTHREAD_ATTR_T];
  32. long int __align;
  33. };
  34. #ifndef __have_pthread_attr_t
  35. typedef union pthread_attr_t pthread_attr_t;
  36. # define __have_pthread_attr_t 1
  37. #endif
  38. typedef struct __pthread_internal_slist
  39. {
  40. struct __pthread_internal_slist *__next;
  41. } __pthread_slist_t;
  42. /* Data structures for mutex handling. The structure of the attribute
  43. type is not exposed on purpose. */
  44. typedef union
  45. {
  46. struct __pthread_mutex_s
  47. {
  48. int __lock;
  49. unsigned int __count;
  50. int __owner;
  51. /* KIND must stay at this position in the structure to maintain
  52. binary compatibility. */
  53. int __kind;
  54. unsigned int __nusers;
  55. __extension__ union
  56. {
  57. int __spins;
  58. __pthread_slist_t __list;
  59. };
  60. } __data;
  61. char __size[__SIZEOF_PTHREAD_MUTEX_T];
  62. long int __align;
  63. } pthread_mutex_t;
  64. typedef union
  65. {
  66. char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
  67. long int __align;
  68. } pthread_mutexattr_t;
  69. /* Data structure for conditional variable handling. The structure of
  70. the attribute type is not exposed on purpose. */
  71. typedef union
  72. {
  73. struct
  74. {
  75. int __lock;
  76. unsigned int __futex;
  77. __extension__ unsigned long long int __total_seq;
  78. __extension__ unsigned long long int __wakeup_seq;
  79. __extension__ unsigned long long int __woken_seq;
  80. void *__mutex;
  81. unsigned int __nwaiters;
  82. unsigned int __broadcast_seq;
  83. } __data;
  84. char __size[__SIZEOF_PTHREAD_COND_T];
  85. __extension__ long long int __align;
  86. } pthread_cond_t;
  87. typedef union
  88. {
  89. char __size[__SIZEOF_PTHREAD_CONDATTR_T];
  90. long int __align;
  91. } pthread_condattr_t;
  92. /* Keys for thread-specific data */
  93. typedef unsigned int pthread_key_t;
  94. /* Once-only execution */
  95. typedef int pthread_once_t;
  96. #if defined __USE_UNIX98 || defined __USE_XOPEN2K
  97. /* Data structure for read-write lock variable handling. The
  98. structure of the attribute type is not exposed on purpose. */
  99. typedef union
  100. {
  101. struct
  102. {
  103. int __lock;
  104. unsigned int __nr_readers;
  105. unsigned int __readers_wakeup;
  106. unsigned int __writer_wakeup;
  107. unsigned int __nr_readers_queued;
  108. unsigned int __nr_writers_queued;
  109. /* FLAGS must stay at this position in the structure to maintain
  110. binary compatibility. */
  111. unsigned char __flags;
  112. unsigned char __shared;
  113. unsigned char __pad1;
  114. unsigned char __pad2;
  115. int __writer;
  116. } __data;
  117. char __size[__SIZEOF_PTHREAD_RWLOCK_T];
  118. long int __align;
  119. } pthread_rwlock_t;
  120. typedef union
  121. {
  122. char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
  123. long int __align;
  124. } pthread_rwlockattr_t;
  125. #endif
  126. #ifdef __USE_XOPEN2K
  127. /* POSIX spinlock data type. */
  128. typedef volatile int pthread_spinlock_t;
  129. /* POSIX barriers data type. The structure of the type is
  130. deliberately not exposed. */
  131. typedef union
  132. {
  133. char __size[__SIZEOF_PTHREAD_BARRIER_T];
  134. long int __align;
  135. } pthread_barrier_t;
  136. typedef union
  137. {
  138. char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
  139. int __align;
  140. } pthread_barrierattr_t;
  141. #endif
  142. /* Extra attributes for the cleanup functions. */
  143. /*
  144. FIXME, check this after gcc uprgrade.
  145. #define __cleanup_fct_attribute __attribute__ ((__regparm__ (1)))
  146. warning: '__regparm__' attribute directive ignored
  147. */
  148. #endif /* bits/pthreadtypes.h */