1 /* Machine-specific pthread type layouts. MIPS version. 2 Copyright (C) 2005, 2006 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 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 <endian.h> 24 25 #if _MIPS_SIM == _ABI64 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 49 deliberately not exposed. */ 50 typedef unsigned long int pthread_t; 51 52 53 typedef union 54 { 55 char __size[__SIZEOF_PTHREAD_ATTR_T]; 56 long int __align; 57 } pthread_attr_t; 58 59 60 #if _MIPS_SIM == _ABI64 61 typedef struct __pthread_internal_list 62 { 63 struct __pthread_internal_list *__prev; 64 struct __pthread_internal_list *__next; 65 } __pthread_list_t; 66 #else 67 typedef 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 deliberately not exposed. */ 76 typedef union 77 { 78 struct __pthread_mutex_s 79 { 80 int __lock; 81 unsigned int __count; 82 int __owner; 83 #if _MIPS_SIM == _ABI64 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 _MIPS_SIM == _ABI64 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; 105 106 typedef 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 deliberately not exposed. */ 115 typedef 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; 131 132 typedef union 133 { 134 char __size[__SIZEOF_PTHREAD_CONDATTR_T]; 135 int __align; 136 } pthread_condattr_t; 137 138 139 /* Keys for thread-specific data */ 140 typedef unsigned int pthread_key_t; 141 142 143 /* Once-only execution */ 144 typedef 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 deliberately not exposed. */ 150 typedef union 151 { 152 # if _MIPS_SIM == _ABI64 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 #if __BYTE_ORDER == __BIG_ENDIAN 179 unsigned char __pad1; 180 unsigned char __pad2; 181 unsigned char __shared; 182 /* FLAGS must stay at this position in the structure to maintain 183 binary compatibility. */ 184 unsigned char __flags; 185 #else 186 /* FLAGS must stay at this position in the structure to maintain 187 binary compatibility. */ 188 unsigned char __flags; 189 unsigned char __shared; 190 unsigned char __pad1; 191 unsigned char __pad2; 192 #endif 193 int __writer; 194 } __data; 195 # endif 196 char __size[__SIZEOF_PTHREAD_RWLOCK_T]; 197 long int __align; 198 } pthread_rwlock_t; 199 200 typedef union 201 { 202 char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T]; 203 long int __align; 204 } pthread_rwlockattr_t; 205 #endif 206 207 208 #ifdef __USE_XOPEN2K 209 /* POSIX spinlock data type. */ 210 typedef volatile int pthread_spinlock_t; 211 212 213 /* POSIX barriers data type. The structure of the type is 214 deliberately not exposed. */ 215 typedef union 216 { 217 char __size[__SIZEOF_PTHREAD_BARRIER_T]; 218 long int __align; 219 } pthread_barrier_t; 220 221 typedef union 222 { 223 char __size[__SIZEOF_PTHREAD_BARRIERATTR_T]; 224 int __align; 225 } pthread_barrierattr_t; 226 #endif 227 228 229 #endif /* bits/pthreadtypes.h */ 230