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/* Declaration of common pthread types for all architectures.
Copyright (C) 2017-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _BITS_PTHREADTYPES_COMMON_H
# define _BITS_PTHREADTYPES_COMMON_H 1
/* For internal mutex and condition variable definitions. */
#include <bits/thread-shared-types.h>
/* Thread identifiers. The structure of the attribute type is not
exposed on purpose. */
typedef unsigned long int pthread_t;
/* Data structures for mutex handling. The structure of the attribute
type is not exposed on purpose. */
typedef union
{
char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
int __align;
} pthread_mutexattr_t;
/* Data structure for condition variable handling. The structure of
the attribute type is not exposed on purpose. */
typedef union
{
char __size[__SIZEOF_PTHREAD_CONDATTR_T];
int __align;
} pthread_condattr_t;
/* Keys for thread-specific data */
typedef unsigned int pthread_key_t;
/* Once-only execution */
typedef int __ONCE_ALIGNMENT pthread_once_t;
union pthread_attr_t
{
char __size[__SIZEOF_PTHREAD_ATTR_T];
long int __align;
};
#ifndef __have_pthread_attr_t
typedef union pthread_attr_t pthread_attr_t;
# define __have_pthread_attr_t 1
#endif
typedef union
{
struct __pthread_mutex_s __data;
char __size[__SIZEOF_PTHREAD_MUTEX_T];
long int __align;
} pthread_mutex_t;
typedef union
{
struct __pthread_cond_s __data;
char __size[__SIZEOF_PTHREAD_COND_T];
__extension__ long long int __align;
} pthread_cond_t;
#if defined __USE_UNIX98 || defined __USE_XOPEN2K
/* Data structure for reader-writer lock variable handling. The
structure of the attribute type is deliberately not exposed. */
typedef union
{
struct __pthread_rwlock_arch_t __data;
char __size[__SIZEOF_PTHREAD_RWLOCK_T];
long int __align;
} pthread_rwlock_t;
typedef union
{
char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
long int __align;
} pthread_rwlockattr_t;
#endif
#ifdef __USE_XOPEN2K
/* POSIX spinlock data type. */
typedef volatile int pthread_spinlock_t;
/* POSIX barriers data type. The structure of the type is
deliberately not exposed. */
typedef union
{
char __size[__SIZEOF_PTHREAD_BARRIER_T];
long int __align;
} pthread_barrier_t;
typedef union
{
char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
int __align;
} pthread_barrierattr_t;
#endif
#endif