sysdeps/unix/sysv/linux/tile/nptl/bits/pthreadtypes.h

   1 /* Copyright (C) 2011-2012 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Based on work contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   4    Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library.  If not, see
  18    <http://www.gnu.org/licenses/>.  */
  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.  */
  50 typedef unsigned long int pthread_t;
  51
  52
  53 union pthread_attr_t
  54 {
  55   char __size[__SIZEOF_PTHREAD_ATTR_T];
  56   long int __align;
  57 };
  58 #ifndef __have_pthread_attr_t
  59 typedef union pthread_attr_t pthread_attr_t;
  60 # define __have_pthread_attr_t  1
  61 #endif
  62
  63 #if __WORDSIZE == 64
  64 typedef struct __pthread_internal_list
  65 {
  66   struct __pthread_internal_list *__prev;
  67   struct __pthread_internal_list *__next;
  68 } __pthread_list_t;
  69 #else
  70 typedef struct __pthread_internal_slist
  71 {
  72   struct __pthread_internal_slist *__next;
  73 } __pthread_slist_t;
  74 #endif
  75
  76
  77 /* Data structures for mutex handling.  The structure of the attribute
  78    type is not exposed on purpose.  */
  79 typedef union
  80 {
  81   struct __pthread_mutex_s
  82   {
  83     int __lock;
  84     unsigned int __count;
  85     int __owner;
  86 #if __WORDSIZE == 64
  87     unsigned int __nusers;
  88 #endif
  89     /* KIND must stay at this position in the structure to maintain
  90        binary compatibility.  */
  91     int __kind;
  92 #if __WORDSIZE == 64
  93     int __spins;
  94     __pthread_list_t __list;
  95 # define __PTHREAD_MUTEX_HAVE_PREV      1
  96 #else
  97     unsigned int __nusers;
  98     __extension__ union
  99     {
 100       int __spins;
 101       __pthread_slist_t __list;
 102     };
 103 #endif
 104   } __data;
 105   char __size[__SIZEOF_PTHREAD_MUTEX_T];
 106   long int __align;
 107 } pthread_mutex_t;
 108
 109 typedef union
 110 {
 111   char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
 112   int __align;
 113 } pthread_mutexattr_t;
 114
 115
 116 /* Data structure for conditional variable handling.  The structure of
 117    the attribute type is not exposed on purpose.  */
 118 typedef union
 119 {
 120   struct
 121   {
 122     int __lock;
 123     unsigned int __futex;
 124     __extension__ unsigned long long int __total_seq;
 125     __extension__ unsigned long long int __wakeup_seq;
 126     __extension__ unsigned long long int __woken_seq;
 127     void *__mutex;
 128     unsigned int __nwaiters;
 129     unsigned int __broadcast_seq;
 130   } __data;
 131   char __size[__SIZEOF_PTHREAD_COND_T];
 132   __extension__ long long int __align;
 133 } pthread_cond_t;
 134
 135 typedef union
 136 {
 137   char __size[__SIZEOF_PTHREAD_CONDATTR_T];
 138   int __align;
 139 } pthread_condattr_t;
 140
 141
 142 /* Keys for thread-specific data */
 143 typedef unsigned int pthread_key_t;
 144
 145
 146 /* Once-only execution */
 147 typedef int pthread_once_t;
 148
 149
 150 #if defined __USE_UNIX98 || defined __USE_XOPEN2K
 151 /* Data structure for read-write lock variable handling.  The
 152    structure of the attribute type is not exposed on purpose.  */
 153 typedef union
 154 {
 155 # if __WORDSIZE == 64
 156   struct
 157   {
 158     int __lock;
 159     unsigned int __nr_readers;
 160     unsigned int __readers_wakeup;
 161     unsigned int __writer_wakeup;
 162     unsigned int __nr_readers_queued;
 163     unsigned int __nr_writers_queued;
 164     int __writer;
 165     int __shared;
 166     unsigned long int __pad1;
 167     unsigned long int __pad2;
 168     /* FLAGS must stay at this position in the structure to maintain
 169        binary compatibility.  */
 170     unsigned int __flags;
 171   } __data;
 172 # else
 173   struct
 174   {
 175     int __lock;
 176     unsigned int __nr_readers;
 177     unsigned int __readers_wakeup;
 178     unsigned int __writer_wakeup;
 179     unsigned int __nr_readers_queued;
 180     unsigned int __nr_writers_queued;
 181     /* FLAGS must stay at this position in the structure to maintain
 182        binary compatibility.  */
 183     unsigned char __flags;
 184     unsigned char __shared;
 185     unsigned char __pad1;
 186     unsigned char __pad2;
 187     int __writer;
 188   } __data;
 189 # endif
 190   char __size[__SIZEOF_PTHREAD_RWLOCK_T];
 191   long int __align;
 192 } pthread_rwlock_t;
 193
 194 typedef union
 195 {
 196   char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
 197   long int __align;
 198 } pthread_rwlockattr_t;
 199 #endif
 200
 201
 202 #ifdef __USE_XOPEN2K
 203 /* POSIX spinlock data type.  */
 204 typedef volatile int pthread_spinlock_t;
 205
 206
 207 /* POSIX barriers data type.  The structure of the type is
 208    deliberately not exposed.  */
 209 typedef union
 210 {
 211   char __size[__SIZEOF_PTHREAD_BARRIER_T];
 212   long int __align;
 213 } pthread_barrier_t;
 214
 215 typedef union
 216 {
 217   char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
 218   int __align;
 219 } pthread_barrierattr_t;
 220 #endif
 221
 222
 223 #endif /* bits/pthreadtypes.h */