1 /* Copyright (C) 2010, 2012 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Maxim Kuvyrkov <maxim@codesourcery.com>, 2010.
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_CONDATTR_T 4
29 #define __SIZEOF_PTHREAD_RWLOCK_T 32
30 #define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
31 #define __SIZEOF_PTHREAD_BARRIER_T 20
32 #define __SIZEOF_PTHREAD_BARRIERATTR_T 4
35 /* Thread identifiers. The structure of the attribute type is
36 deliberately not exposed. */
37 typedef unsigned long int pthread_t
;
42 char __size
[__SIZEOF_PTHREAD_ATTR_T
];
45 #ifndef __have_pthread_attr_t
46 typedef union pthread_attr_t pthread_attr_t
;
47 # define __have_pthread_attr_t 1
51 typedef struct __pthread_internal_slist
53 struct __pthread_internal_slist
*__next
;
57 /* Data structures for mutex handling. The structure of the attribute
58 type is deliberately not exposed. */
61 struct __pthread_mutex_s
63 int __lock
__attribute__ ((__aligned__ (4)));
66 /* KIND must stay at this position in the structure to maintain
67 binary compatibility. */
69 unsigned int __nusers
;
73 __pthread_slist_t __list
;
76 char __size
[__SIZEOF_PTHREAD_MUTEX_T
];
82 char __size
[__SIZEOF_PTHREAD_MUTEXATTR_T
];
84 } pthread_mutexattr_t
;
87 /* Data structure for conditional variable handling. The structure of
88 the attribute type is deliberately not exposed. */
93 int __lock
__attribute__ ((__aligned__ (4)));
95 __extension__
unsigned long long int __total_seq
;
96 __extension__
unsigned long long int __wakeup_seq
;
97 __extension__
unsigned long long int __woken_seq
;
99 unsigned int __nwaiters
;
100 unsigned int __broadcast_seq
;
102 char __size
[__SIZEOF_PTHREAD_COND_T
];
103 __extension__
long long int __align
;
108 char __size
[__SIZEOF_PTHREAD_CONDATTR_T
];
110 } pthread_condattr_t
;
113 /* Keys for thread-specific data */
114 typedef unsigned int pthread_key_t
;
117 /* Once-only execution */
118 typedef int __attribute__ ((__aligned__ (4))) pthread_once_t
;
121 #if defined __USE_UNIX98 || defined __USE_XOPEN2K
122 /* Data structure for read-write lock variable handling. The
123 structure of the attribute type is deliberately not exposed. */
128 int __lock
__attribute__ ((__aligned__ (4)));
129 unsigned int __nr_readers
;
130 unsigned int __readers_wakeup
;
131 unsigned int __writer_wakeup
;
132 unsigned int __nr_readers_queued
;
133 unsigned int __nr_writers_queued
;
134 unsigned char __pad1
;
135 unsigned char __pad2
;
136 unsigned char __shared
;
137 /* FLAGS must stay at this position in the structure to maintain
138 binary compatibility. */
139 unsigned char __flags
;
142 char __size
[__SIZEOF_PTHREAD_RWLOCK_T
];
148 char __size
[__SIZEOF_PTHREAD_RWLOCKATTR_T
];
150 } pthread_rwlockattr_t
;
155 /* POSIX spinlock data type. */
156 typedef volatile int pthread_spinlock_t
;
159 /* POSIX barriers data type. The structure of the type is
160 deliberately not exposed. */
163 char __size
[__SIZEOF_PTHREAD_BARRIER_T
];
164 long int __align
__attribute__ ((__aligned__ (4)));
169 char __size
[__SIZEOF_PTHREAD_BARRIERATTR_T
];
171 } pthread_barrierattr_t
;
175 #endif /* bits/pthreadtypes.h */