1 /* Machine-specific pthread type layouts. Alpha version.
2 Copyright (C) 2003, 2004, 2005, 2006, 2007 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
22 #define __SIZEOF_PTHREAD_ATTR_T 56
23 #define __SIZEOF_PTHREAD_MUTEX_T 40
24 #define __SIZEOF_PTHREAD_MUTEXATTR_T 4
25 #define __SIZEOF_PTHREAD_COND_T 48
26 #define __SIZEOF_PTHREAD_CONDATTR_T 4
27 #define __SIZEOF_PTHREAD_RWLOCK_T 56
28 #define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
29 #define __SIZEOF_PTHREAD_BARRIER_T 32
30 #define __SIZEOF_PTHREAD_BARRIERATTR_T 4
33 /* Thread identifiers. The structure of the attribute type is
34 deliberately not exposed. */
35 typedef unsigned long int pthread_t;
40 char __size[__SIZEOF_PTHREAD_ATTR_T];
45 typedef struct __pthread_internal_list
47 struct __pthread_internal_list *__prev;
48 struct __pthread_internal_list *__next;
52 /* Data structures for mutex handling. The structure of the attribute
53 type is deliberately not exposed. */
56 struct __pthread_mutex_s
61 unsigned int __nusers;
62 /* KIND must stay at this position in the structure to maintain
63 binary compatibility. */
66 __pthread_list_t __list;
67 #define __PTHREAD_MUTEX_HAVE_PREV 1
69 char __size[__SIZEOF_PTHREAD_MUTEX_T];
75 char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
77 } pthread_mutexattr_t;
80 /* Data structure for conditional variable handling. The structure of
81 the attribute type is deliberately not exposed. */
88 __extension__ unsigned long long int __total_seq;
89 __extension__ unsigned long long int __wakeup_seq;
90 __extension__ unsigned long long int __woken_seq;
92 unsigned int __nwaiters;
93 unsigned int __broadcast_seq;
95 char __size[__SIZEOF_PTHREAD_COND_T];
96 __extension__ long long int __align;
101 char __size[__SIZEOF_PTHREAD_CONDATTR_T];
103 } pthread_condattr_t;
106 /* Keys for thread-specific data */
107 typedef unsigned int pthread_key_t;
110 /* Once-only execution */
111 typedef int pthread_once_t;
114 #if defined __USE_UNIX98 || defined __USE_XOPEN2K
115 /* Data structure for read-write lock variable handling. The
116 structure of the attribute type is deliberately not exposed. */
122 unsigned int __nr_readers;
123 unsigned int __readers_wakeup;
124 unsigned int __writer_wakeup;
125 unsigned int __nr_readers_queued;
126 unsigned int __nr_writers_queued;
129 unsigned long int __pad1;
130 unsigned long int __pad2;
131 /* FLAGS must stay at this position in the structure to maintain
132 binary compatibility. */
133 unsigned int __flags;
135 char __size[__SIZEOF_PTHREAD_RWLOCK_T];
141 char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
143 } pthread_rwlockattr_t;
148 /* POSIX spinlock data type. */
149 typedef volatile int pthread_spinlock_t;
151 /* POSIX barriers data type. The structure of the type is
152 deliberately not exposed. */
155 char __size[__SIZEOF_PTHREAD_BARRIER_T];
161 char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
163 } pthread_barrierattr_t;
167 #endif /* bits/pthreadtypes.h */