1/* Copyright (C) 2002,2003,2004,2005,2006,2007 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. 4 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. 9 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. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, write to the Free 17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 18 02111-1307 USA. */ 19 20#ifndef _BITS_PTHREADTYPES_H 21#define _BITS_PTHREADTYPES_H 1 22 23#include <bits/wordsize.h> 24 25#if __WORDSIZE == 64 26# define __SIZEOF_PTHREAD_ATTR_T 56 27# define __SIZEOF_PTHREAD_MUTEX_T 40 28# define __SIZEOF_PTHREAD_MUTEXATTR_T 4 29# define __SIZEOF_PTHREAD_COND_T 48 30# define __SIZEOF_PTHREAD_CONDATTR_T 4 31# define __SIZEOF_PTHREAD_RWLOCK_T 56 32# define __SIZEOF_PTHREAD_RWLOCKATTR_T 8 33# define __SIZEOF_PTHREAD_BARRIER_T 32 34# define __SIZEOF_PTHREAD_BARRIERATTR_T 4 35#else 36# define __SIZEOF_PTHREAD_ATTR_T 36 37# define __SIZEOF_PTHREAD_MUTEX_T 24 38# define __SIZEOF_PTHREAD_MUTEXATTR_T 4 39# define __SIZEOF_PTHREAD_COND_T 48 40# define __SIZEOF_PTHREAD_CONDATTR_T 4 41# define __SIZEOF_PTHREAD_RWLOCK_T 32 42# define __SIZEOF_PTHREAD_RWLOCKATTR_T 8 43# define __SIZEOF_PTHREAD_BARRIER_T 20 44# define __SIZEOF_PTHREAD_BARRIERATTR_T 4 45#endif 46 47 48/* Thread identifiers. The structure of the attribute type is not 49 exposed on purpose. */ 50typedef unsigned long int pthread_t; 51 52 53typedef union 54{ 55 char __size[__SIZEOF_PTHREAD_ATTR_T]; 56 long int __align; 57} pthread_attr_t; 58 59 60#if __WORDSIZE == 64 61typedef struct __pthread_internal_list 62{ 63 struct __pthread_internal_list *__prev; 64 struct __pthread_internal_list *__next; 65} __pthread_list_t; 66#else 67typedef struct __pthread_internal_slist 68{ 69 struct __pthread_internal_slist *__next; 70} __pthread_slist_t; 71#endif 72 73 74/* Data structures for mutex handling. The structure of the attribute 75 type is not exposed on purpose. */ 76typedef union 77{ 78 struct __pthread_mutex_s 79 { 80 int __lock; 81 unsigned int __count; 82 int __owner; 83#if __WORDSIZE == 64 84 unsigned int __nusers; 85#endif 86 /* KIND must stay at this position in the structure to maintain 87 binary compatibility. */ 88 int __kind; 89#if __WORDSIZE == 64 90 int __spins; 91 __pthread_list_t __list; 92# define __PTHREAD_MUTEX_HAVE_PREV 1 93#else 94 unsigned int __nusers; 95 __extension__ union 96 { 97 int __spins; 98 __pthread_slist_t __list; 99 }; 100#endif 101 } __data; 102 char __size[__SIZEOF_PTHREAD_MUTEX_T]; 103 long int __align; 104} pthread_mutex_t; 105 106typedef union 107{ 108 char __size[__SIZEOF_PTHREAD_MUTEXATTR_T]; 109 int __align; 110} pthread_mutexattr_t; 111 112 113/* Data structure for conditional variable handling. The structure of 114 the attribute type is not exposed on purpose. */ 115typedef union 116{ 117 struct 118 { 119 int __lock; 120 unsigned int __futex; 121 __extension__ unsigned long long int __total_seq; 122 __extension__ unsigned long long int __wakeup_seq; 123 __extension__ unsigned long long int __woken_seq; 124 void *__mutex; 125 unsigned int __nwaiters; 126 unsigned int __broadcast_seq; 127 } __data; 128 char __size[__SIZEOF_PTHREAD_COND_T]; 129 __extension__ long long int __align; 130} pthread_cond_t; 131 132typedef union 133{ 134 char __size[__SIZEOF_PTHREAD_CONDATTR_T]; 135 int __align; 136} pthread_condattr_t; 137 138 139/* Keys for thread-specific data */ 140typedef unsigned int pthread_key_t; 141 142 143/* Once-only execution */ 144typedef int pthread_once_t; 145 146 147#if defined __USE_UNIX98 || defined __USE_XOPEN2K 148/* Data structure for read-write lock variable handling. The 149 structure of the attribute type is not exposed on purpose. */ 150typedef union 151{ 152# if __WORDSIZE == 64 153 struct 154 { 155 int __lock; 156 unsigned int __nr_readers; 157 unsigned int __readers_wakeup; 158 unsigned int __writer_wakeup; 159 unsigned int __nr_readers_queued; 160 unsigned int __nr_writers_queued; 161 int __writer; 162 int __shared; 163 unsigned long int __pad1; 164 unsigned long int __pad2; 165 /* FLAGS must stay at this position in the structure to maintain 166 binary compatibility. */ 167 unsigned int __flags; 168 } __data; 169# else 170 struct 171 { 172 int __lock; 173 unsigned int __nr_readers; 174 unsigned int __readers_wakeup; 175 unsigned int __writer_wakeup; 176 unsigned int __nr_readers_queued; 177 unsigned int __nr_writers_queued; 178 /* FLAGS must stay at this position in the structure to maintain 179 binary compatibility. */ 180 unsigned char __flags; 181 unsigned char __shared; 182 unsigned char __pad1; 183 unsigned char __pad2; 184 int __writer; 185 } __data; 186# endif 187 char __size[__SIZEOF_PTHREAD_RWLOCK_T]; 188 long int __align; 189} pthread_rwlock_t; 190 191typedef union 192{ 193 char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T]; 194 long int __align; 195} pthread_rwlockattr_t; 196#endif 197 198 199#ifdef __USE_XOPEN2K 200/* POSIX spinlock data type. */ 201typedef volatile int pthread_spinlock_t; 202 203 204/* POSIX barriers data type. The structure of the type is 205 deliberately not exposed. */ 206typedef union 207{ 208 char __size[__SIZEOF_PTHREAD_BARRIER_T]; 209 long int __align; 210} pthread_barrier_t; 211 212typedef union 213{ 214 char __size[__SIZEOF_PTHREAD_BARRIERATTR_T]; 215 int __align; 216} pthread_barrierattr_t; 217#endif 218 219 220#if __WORDSIZE == 32 221/* Extra attributes for the cleanup functions. */ 222# define __cleanup_fct_attribute __attribute__ ((__regparm__ (1))) 223#endif 224 225#endif /* bits/pthreadtypes.h */ 226