1 /* Copyright (C) 2002-2015 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
19 #ifndef _BITS_PTHREADTYPES_H
20 # define _BITS_PTHREADTYPES_H 1
24 # define __SIZEOF_PTHREAD_ATTR_T 36
25 # define __SIZEOF_PTHREAD_MUTEX_T 24
26 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
27 # define __SIZEOF_PTHREAD_COND_T 48
28 # define __SIZEOF_PTHREAD_COND_COMPAT_T 12
29 # define __SIZEOF_PTHREAD_CONDATTR_T 4
30 # define __SIZEOF_PTHREAD_RWLOCK_T 32
31 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
32 # define __SIZEOF_PTHREAD_BARRIER_T 20
33 # define __SIZEOF_PTHREAD_BARRIERATTR_T 4
36 /* Thread identifiers. The structure of the attribute type is not
37 exposed on purpose. */
38 typedef unsigned long int pthread_t
;
42 char __size
[__SIZEOF_PTHREAD_ATTR_T
];
46 # ifndef __have_pthread_attr_t
47 typedef union pthread_attr_t pthread_attr_t
;
48 # define __have_pthread_attr_t 1
51 typedef struct __pthread_internal_slist
53 struct __pthread_internal_slist
*__next
;
56 /* Data structures for mutex handling. The structure of the attribute
57 type is not exposed on purpose. */
60 struct __pthread_mutex_s
65 /* KIND must stay at this position in the structure to maintain
66 binary compatibility. */
68 unsigned int __nusers
;
72 __pthread_slist_t __list
;
75 char __size
[__SIZEOF_PTHREAD_MUTEX_T
];
79 /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER. */
80 #define __PTHREAD_SPINS 0
84 char __size
[__SIZEOF_PTHREAD_MUTEXATTR_T
];
86 } pthread_mutexattr_t
;
88 /* Data structure for conditional variable handling. The structure of
89 the attribute type is not exposed on purpose. */
96 __extension__
unsigned long long int __total_seq
;
97 __extension__
unsigned long long int __wakeup_seq
;
98 __extension__
unsigned long long int __woken_seq
;
100 unsigned int __nwaiters
;
101 unsigned int __broadcast_seq
;
103 char __size
[__SIZEOF_PTHREAD_COND_T
];
104 __extension__
long long int __align
;
109 char __size
[__SIZEOF_PTHREAD_CONDATTR_T
];
111 } pthread_condattr_t
;
113 /* Keys for thread-specific data. */
114 typedef unsigned int pthread_key_t
;
116 /* Once-only execution. */
117 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
];
153 #define __PTHREAD_RWLOCK_ELISION_EXTRA 0
157 char __size
[__SIZEOF_PTHREAD_RWLOCKATTR_T
];
159 } pthread_rwlockattr_t
;
162 # ifdef __USE_XOPEN2K
163 /* POSIX spinlock data type. */
164 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
;
181 #endif /* bits/pthreadtypes.h. */