1 /* Copyright (C) 2002-2014 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
18 #ifndef _BITS_PTHREADTYPES_H
19 #define _BITS_PTHREADTYPES_H 1
21 #include <bits/wordsize.h>
25 # define __SIZEOF_PTHREAD_ATTR_T 56
26 # define __SIZEOF_PTHREAD_MUTEX_T 40
27 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
28 # define __SIZEOF_PTHREAD_COND_T 48
29 # define __SIZEOF_PTHREAD_CONDATTR_T 4
30 # define __SIZEOF_PTHREAD_RWLOCK_T 56
31 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
32 # define __SIZEOF_PTHREAD_BARRIER_T 32
33 # define __SIZEOF_PTHREAD_BARRIERATTR_T 4
35 # define __SIZEOF_PTHREAD_ATTR_T 32
36 # define __SIZEOF_PTHREAD_MUTEX_T 32
37 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
38 # define __SIZEOF_PTHREAD_COND_T 48
39 # define __SIZEOF_PTHREAD_CONDATTR_T 4
40 # define __SIZEOF_PTHREAD_RWLOCK_T 44
41 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
42 # define __SIZEOF_PTHREAD_BARRIER_T 20
43 # define __SIZEOF_PTHREAD_BARRIERATTR_T 4
46 # define __SIZEOF_PTHREAD_ATTR_T 36
47 # define __SIZEOF_PTHREAD_MUTEX_T 24
48 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
49 # define __SIZEOF_PTHREAD_COND_T 48
50 # define __SIZEOF_PTHREAD_CONDATTR_T 4
51 # define __SIZEOF_PTHREAD_RWLOCK_T 32
52 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
53 # define __SIZEOF_PTHREAD_BARRIER_T 20
54 # define __SIZEOF_PTHREAD_BARRIERATTR_T 4
58 /* Thread identifiers. The structure of the attribute type is not
59 exposed on purpose. */
60 typedef unsigned long int pthread_t;
65 char __size[__SIZEOF_PTHREAD_ATTR_T];
68 #ifndef __have_pthread_attr_t
69 typedef union pthread_attr_t pthread_attr_t;
70 # define __have_pthread_attr_t 1
75 typedef struct __pthread_internal_list
77 struct __pthread_internal_list *__prev;
78 struct __pthread_internal_list *__next;
81 typedef struct __pthread_internal_slist
83 struct __pthread_internal_slist *__next;
88 /* Data structures for mutex handling. The structure of the attribute
89 type is not exposed on purpose. */
92 struct __pthread_mutex_s
98 unsigned int __nusers;
100 /* KIND must stay at this position in the structure to maintain
101 binary compatibility. */
106 __pthread_list_t __list;
107 # define __PTHREAD_MUTEX_HAVE_PREV 1
108 # define __PTHREAD_MUTEX_HAVE_ELISION 1
110 unsigned int __nusers;
117 # define __spins d.__espins
118 # define __elision d.__elision
119 # define __PTHREAD_MUTEX_HAVE_ELISION 2
121 __pthread_slist_t __list;
125 char __size[__SIZEOF_PTHREAD_MUTEX_T];
131 char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
133 } pthread_mutexattr_t;
136 /* Data structure for conditional variable handling. The structure of
137 the attribute type is not exposed on purpose. */
143 unsigned int __futex;
144 __extension__ unsigned long long int __total_seq;
145 __extension__ unsigned long long int __wakeup_seq;
146 __extension__ unsigned long long int __woken_seq;
148 unsigned int __nwaiters;
149 unsigned int __broadcast_seq;
151 char __size[__SIZEOF_PTHREAD_COND_T];
152 __extension__ long long int __align;
157 char __size[__SIZEOF_PTHREAD_CONDATTR_T];
159 } pthread_condattr_t;
162 /* Keys for thread-specific data */
163 typedef unsigned int pthread_key_t;
166 /* Once-only execution */
167 typedef int pthread_once_t;
170 #if defined __USE_UNIX98 || defined __USE_XOPEN2K
171 /* Data structure for read-write lock variable handling. The
172 structure of the attribute type is not exposed on purpose. */
179 unsigned int __nr_readers;
180 unsigned int __readers_wakeup;
181 unsigned int __writer_wakeup;
182 unsigned int __nr_readers_queued;
183 unsigned int __nr_writers_queued;
186 unsigned long int __pad1;
187 unsigned long int __pad2;
188 /* FLAGS must stay at this position in the structure to maintain
189 binary compatibility. */
190 unsigned int __flags;
191 # define __PTHREAD_RWLOCK_INT_FLAGS_SHARED 1
197 unsigned int __nr_readers;
198 unsigned int __readers_wakeup;
199 unsigned int __writer_wakeup;
200 unsigned int __nr_readers_queued;
201 unsigned int __nr_writers_queued;
202 /* FLAGS must stay at this position in the structure to maintain
203 binary compatibility. */
204 unsigned char __flags;
205 unsigned char __shared;
206 unsigned char __pad1;
207 unsigned char __pad2;
211 char __size[__SIZEOF_PTHREAD_RWLOCK_T];
217 char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
219 } pthread_rwlockattr_t;
224 /* POSIX spinlock data type. */
225 typedef volatile int pthread_spinlock_t;
228 /* POSIX barriers data type. The structure of the type is
229 deliberately not exposed. */
232 char __size[__SIZEOF_PTHREAD_BARRIER_T];
238 char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
240 } pthread_barrierattr_t;
245 /* Extra attributes for the cleanup functions. */
246 # define __cleanup_fct_attribute __attribute__ ((__regparm__ (1)))
249 #endif /* bits/pthreadtypes.h */