262 lines
6.4 KiB
C
262 lines
6.4 KiB
C
/* Copyright (C) 2003-2016 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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<http://www.gnu.org/licenses/>. */
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#ifndef _BITS_PTHREADTYPES_H
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#define _BITS_PTHREADTYPES_H 1
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#include <bits/wordsize.h>
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#if __WORDSIZE == 64
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# define __SIZEOF_PTHREAD_ATTR_T 56
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# define __SIZEOF_PTHREAD_MUTEX_T 40
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# define __SIZEOF_PTHREAD_MUTEXATTR_T 4
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# define __SIZEOF_PTHREAD_COND_T 48
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# define __SIZEOF_PTHREAD_CONDATTR_T 4
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# define __SIZEOF_PTHREAD_RWLOCK_T 56
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# define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
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# define __SIZEOF_PTHREAD_BARRIER_T 32
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# define __SIZEOF_PTHREAD_BARRIERATTR_T 4
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#else
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# define __SIZEOF_PTHREAD_ATTR_T 36
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# define __SIZEOF_PTHREAD_MUTEX_T 24
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# define __SIZEOF_PTHREAD_MUTEXATTR_T 4
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# define __SIZEOF_PTHREAD_COND_T 48
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# define __SIZEOF_PTHREAD_CONDATTR_T 4
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# define __SIZEOF_PTHREAD_RWLOCK_T 32
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# define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
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# define __SIZEOF_PTHREAD_BARRIER_T 20
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# define __SIZEOF_PTHREAD_BARRIERATTR_T 4
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#endif
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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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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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#if __WORDSIZE == 64
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typedef struct __pthread_internal_list
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{
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struct __pthread_internal_list *__prev;
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struct __pthread_internal_list *__next;
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} __pthread_list_t;
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#else
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typedef struct __pthread_internal_slist
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{
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struct __pthread_internal_slist *__next;
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} __pthread_slist_t;
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#endif
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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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struct __pthread_mutex_s
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{
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int __lock;
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unsigned int __count;
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int __owner;
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#if __WORDSIZE == 64
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unsigned int __nusers;
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#endif
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/* KIND must stay at this position in the structure to maintain
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binary compatibility with static initializers. */
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int __kind;
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#if __WORDSIZE == 64
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# ifdef ENABLE_LOCK_ELISION
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short __spins;
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short __elision;
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/* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER. */
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# define __PTHREAD_SPINS 0, 0
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# else
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int __spins;
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/* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER. */
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# define __PTHREAD_SPINS 0
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# endif
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__pthread_list_t __list;
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# define __PTHREAD_MUTEX_HAVE_PREV 1
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#else
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unsigned int __nusers;
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__extension__ union
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{
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# ifdef ENABLE_LOCK_ELISION
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struct
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{
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short __espins;
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short __elision;
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} _d;
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# define __spins _d.__espins
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# define __elision _d.__elision
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/* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER. */
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# define __PTHREAD_SPINS { 0, 0 }
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# else
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int __spins;
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/* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER. */
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# define __PTHREAD_SPINS 0
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# endif
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__pthread_slist_t __list;
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};
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#endif
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} __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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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 conditional 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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struct
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{
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__extension__ union
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{
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__extension__ unsigned long long int __wseq;
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struct {
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unsigned int __low;
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unsigned int __high;
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} __wseq32;
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};
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__extension__ union
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{
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__extension__ unsigned long long int __g1_start;
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struct {
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unsigned int __low;
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unsigned int __high;
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} __g1_start32;
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};
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unsigned int __g_refs[2];
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unsigned int __g_size[2];
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unsigned int __g1_orig_size;
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unsigned int __wrefs;
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unsigned int __g_signals[2];
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} __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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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 pthread_once_t;
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#if defined __USE_UNIX98 || defined __USE_XOPEN2K
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/* Data structure for read-write lock variable handling. The
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structure of the attribute type is not exposed on purpose. */
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typedef union
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{
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# if __WORDSIZE == 64
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struct
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{
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int __lock;
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unsigned int __nr_readers;
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unsigned int __readers_wakeup;
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unsigned int __writer_wakeup;
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unsigned int __nr_readers_queued;
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unsigned int __nr_writers_queued;
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int __writer;
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int __shared;
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unsigned long int __pad1;
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unsigned long int __pad2;
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/* FLAGS must stay at this position in the structure to maintain
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binary compatibility. */
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unsigned int __flags;
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} __data;
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# else
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struct
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{
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int __lock;
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unsigned int __nr_readers;
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unsigned int __readers_wakeup;
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unsigned int __writer_wakeup;
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unsigned int __nr_readers_queued;
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unsigned int __nr_writers_queued;
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unsigned char __pad1;
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unsigned char __pad2;
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unsigned char __shared;
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/* FLAGS must stay at this position in the structure to maintain
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binary compatibility. */
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unsigned char __flags;
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int __writer;
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} __data;
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# endif
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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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#define __PTHREAD_RWLOCK_ELISION_EXTRA 0
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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 /* bits/pthreadtypes.h */
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