1 /* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007
2 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
20 #ifndef _BITS_PTHREADTYPES_H
21 #define _BITS_PTHREADTYPES_H 1
25 #define __SIZEOF_PTHREAD_ATTR_T 36
26 #define __SIZEOF_PTHREAD_MUTEX_T 24
27 #define __SIZEOF_PTHREAD_MUTEXATTR_T 4
28 #define __SIZEOF_PTHREAD_COND_T 48
29 #define __SIZEOF_PTHREAD_COND_COMPAT_T 12
30 #define __SIZEOF_PTHREAD_CONDATTR_T 4
31 #define __SIZEOF_PTHREAD_RWLOCK_T 32
32 #define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
33 #define __SIZEOF_PTHREAD_BARRIER_T 20
34 #define __SIZEOF_PTHREAD_BARRIERATTR_T 4
37 /* Thread identifiers. The structure of the attribute type is not
38 exposed on purpose. */
39 typedef unsigned long int pthread_t;
44 char __size[__SIZEOF_PTHREAD_ATTR_T];
49 typedef struct __pthread_internal_slist
51 struct __pthread_internal_slist *__next;
55 /* Data structures for mutex handling. The structure of the attribute
56 type is not exposed on purpose. */
59 struct __pthread_mutex_s
64 /* KIND must stay at this position in the structure to maintain
65 binary compatibility. */
67 unsigned int __nusers;
71 __pthread_slist_t __list;
74 char __size[__SIZEOF_PTHREAD_MUTEX_T];
80 char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
82 } pthread_mutexattr_t;
85 /* Data structure for conditional variable handling. The structure of
86 the attribute type is not exposed on purpose. */
93 __extension__ unsigned long long int __total_seq;
94 __extension__ unsigned long long int __wakeup_seq;
95 __extension__ unsigned long long int __woken_seq;
97 unsigned int __nwaiters;
98 unsigned int __broadcast_seq;
100 char __size[__SIZEOF_PTHREAD_COND_T];
101 __extension__ long long int __align;
106 char __size[__SIZEOF_PTHREAD_CONDATTR_T];
108 } pthread_condattr_t;
111 /* Keys for thread-specific data */
112 typedef unsigned int pthread_key_t;
115 /* Once-only execution */
116 typedef int pthread_once_t;
119 #if defined __USE_UNIX98 || defined __USE_XOPEN2K
120 /* Data structure for read-write lock variable handling. The
121 structure of the attribute type is not exposed on purpose. */
127 unsigned int __nr_readers;
128 unsigned int __readers_wakeup;
129 unsigned int __writer_wakeup;
130 unsigned int __nr_readers_queued;
131 unsigned int __nr_writers_queued;
132 #if __BYTE_ORDER == __BIG_ENDIAN
133 unsigned char __pad1;
134 unsigned char __pad2;
135 unsigned char __shared;
136 /* FLAGS must stay at this position in the structure to maintain
137 binary compatibility. */
138 unsigned char __flags;
140 /* FLAGS must stay at this position in the structure to maintain
141 binary compatibility. */
142 unsigned char __flags;
143 unsigned char __shared;
144 unsigned char __pad1;
145 unsigned char __pad2;
149 char __size[__SIZEOF_PTHREAD_RWLOCK_T];
155 char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
157 } pthread_rwlockattr_t;
162 /* POSIX spinlock data type. */
163 typedef volatile int pthread_spinlock_t;
166 /* POSIX barriers data type. The structure of the type is
167 deliberately not exposed. */
170 char __size[__SIZEOF_PTHREAD_BARRIER_T];
176 char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
178 } pthread_barrierattr_t;
182 #endif /* bits/pthreadtypes.h */