1 /* Machine-specific pthread type layouts. Alpha version.
2 Copyright (C) 2003-2015 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
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
];
43 #ifndef __have_pthread_attr_t
44 typedef union pthread_attr_t pthread_attr_t
;
45 # define __have_pthread_attr_t 1
48 typedef struct __pthread_internal_list
50 struct __pthread_internal_list
*__prev
;
51 struct __pthread_internal_list
*__next
;
55 /* Data structures for mutex handling. The structure of the attribute
56 type is deliberately not exposed. */
59 struct __pthread_mutex_s
64 unsigned int __nusers
;
65 /* KIND must stay at this position in the structure to maintain
66 binary compatibility. */
69 __pthread_list_t __list
;
70 #define __PTHREAD_MUTEX_HAVE_PREV 1
72 char __size
[__SIZEOF_PTHREAD_MUTEX_T
];
76 /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER. */
77 #define __PTHREAD_SPINS 0
81 char __size
[__SIZEOF_PTHREAD_MUTEXATTR_T
];
83 } pthread_mutexattr_t
;
86 /* Data structure for conditional variable handling. The structure of
87 the attribute type is deliberately not exposed. */
94 __extension__
unsigned long long int __total_seq
;
95 __extension__
unsigned long long int __wakeup_seq
;
96 __extension__
unsigned long long int __woken_seq
;
98 unsigned int __nwaiters
;
99 unsigned int __broadcast_seq
;
101 char __size
[__SIZEOF_PTHREAD_COND_T
];
102 __extension__
long long int __align
;
107 char __size
[__SIZEOF_PTHREAD_CONDATTR_T
];
109 } pthread_condattr_t
;
112 /* Keys for thread-specific data */
113 typedef unsigned int pthread_key_t
;
116 /* Once-only execution */
117 typedef int pthread_once_t
;
120 #if defined __USE_UNIX98 || defined __USE_XOPEN2K
121 /* Data structure for read-write lock variable handling. The
122 structure of the attribute type is deliberately not exposed. */
128 unsigned int __nr_readers
;
129 unsigned int __readers_wakeup
;
130 unsigned int __writer_wakeup
;
131 unsigned int __nr_readers_queued
;
132 unsigned int __nr_writers_queued
;
135 unsigned long int __pad1
;
136 unsigned long int __pad2
;
137 /* FLAGS must stay at this position in the structure to maintain
138 binary compatibility. */
139 unsigned int __flags
;
141 char __size
[__SIZEOF_PTHREAD_RWLOCK_T
];
145 #define __PTHREAD_RWLOCK_ELISION_EXTRA 0
149 char __size
[__SIZEOF_PTHREAD_RWLOCKATTR_T
];
151 } pthread_rwlockattr_t
;
156 /* POSIX spinlock data type. */
157 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
];
169 char __size
[__SIZEOF_PTHREAD_BARRIERATTR_T
];
171 } pthread_barrierattr_t
;
175 #endif /* bits/pthreadtypes.h */