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1/* Mutex type. Generic version.
2
3 Copyright (C) 2000-2022 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <https://www.gnu.org/licenses/>. */
19
20#ifndef _BITS_TYPES_STRUCT___PTHREAD_MUTEX_H
21#define _BITS_TYPES_STRUCT___PTHREAD_MUTEX_H 1
22
23#include <bits/types/__pthread_spinlock_t.h>
24#include <bits/types/struct___pthread_mutexattr.h>
25
26/* User visible part of a mutex. */
27struct __pthread_mutex
28{
29 __pthread_spinlock_t __held;
30 __pthread_spinlock_t __lock;
31 /* In cthreads, mutex_init does not initialized thre third
32 pointer, as such, we cannot rely on its value for anything. */
33 char *__cthreadscompat1;
34 struct __pthread *__queue;
35 struct __pthread_mutexattr *__attr;
36 void *__data;
37 /* Up to this point, we are completely compatible with cthreads
38 and what libc expects. */
39 void *__owner;
40 unsigned __locks;
41 /* If NULL then the default attributes apply. */
42};
43
44/* Initializer for a mutex. N.B. this also happens to be compatible
45 with the cthread mutex initializer. */
46#define __PTHREAD_MUTEX_INITIALIZER \
47 { __PTHREAD_SPIN_LOCK_INITIALIZER, __PTHREAD_SPIN_LOCK_INITIALIZER, 0, 0, 0, 0, 0, 0 }
48
49#define __PTHREAD_ERRORCHECK_MUTEXATTR ((struct __pthread_mutexattr *) ((unsigned long) __PTHREAD_MUTEX_ERRORCHECK + 1))
50
51#define __PTHREAD_ERRORCHECK_MUTEX_INITIALIZER \
52 { __PTHREAD_SPIN_LOCK_INITIALIZER, __PTHREAD_SPIN_LOCK_INITIALIZER, 0, 0, \
53 __PTHREAD_ERRORCHECK_MUTEXATTR, 0, 0, 0 }
54
55#define __PTHREAD_RECURSIVE_MUTEXATTR ((struct __pthread_mutexattr *) ((unsigned long) __PTHREAD_MUTEX_RECURSIVE + 1))
56
57#define __PTHREAD_RECURSIVE_MUTEX_INITIALIZER \
58 { __PTHREAD_SPIN_LOCK_INITIALIZER, __PTHREAD_SPIN_LOCK_INITIALIZER, 0, 0, \
59 __PTHREAD_RECURSIVE_MUTEXATTR, 0, 0, 0 }
60
61#endif /* bits/types/struct___pthread_mutex.h */
62

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source code of glibc/sysdeps/htl/bits/types/struct___pthread_mutex.h