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