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

   1 /* Machine-specific pthread type layouts.  SPARC version.
   2    Copyright (C) 2003, 2004 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
   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, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #ifndef _BITS_PTHREADTYPES_H
  22 #define _BITS_PTHREADTYPES_H    1
  23
  24 #include <bits/wordsize.h>
  25
  26 #if __WORDSIZE == 64
  27 # define __SIZEOF_PTHREAD_ATTR_T 56
  28 # define __SIZEOF_PTHREAD_MUTEX_T 40
  29 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
  30 # define __SIZEOF_PTHREAD_COND_T 48
  31 # define __SIZEOF_PTHREAD_CONDATTR_T 4
  32 # define __SIZEOF_PTHREAD_RWLOCK_T 56
  33 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
  34 # define __SIZEOF_PTHREAD_BARRIER_T 32
  35 # define __SIZEOF_PTHREAD_BARRIERATTR_T 4
  36 #else
  37 # define __SIZEOF_PTHREAD_ATTR_T 36
  38 # define __SIZEOF_PTHREAD_MUTEX_T 24
  39 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
  40 # define __SIZEOF_PTHREAD_COND_T 48
  41 # define __SIZEOF_PTHREAD_CONDATTR_T 4
  42 # define __SIZEOF_PTHREAD_RWLOCK_T 32
  43 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
  44 # define __SIZEOF_PTHREAD_BARRIER_T 20
  45 # define __SIZEOF_PTHREAD_BARRIERATTR_T 4
  46 #endif
  47
  48
  49 /* Thread identifiers.  The structure of the attribute type is
  50    deliberately not exposed.  */
  51 typedef unsigned long int pthread_t;
  52
  53
  54 typedef union
  55 {
  56   char __size[__SIZEOF_PTHREAD_ATTR_T];
  57   long int __align;
  58 } pthread_attr_t;
  59
  60
  61 /* Data structures for mutex handling.  The structure of the attribute
  62    type is deliberately not exposed.  */
  63 typedef union
  64 {
  65   struct
  66   {
  67     int __lock;
  68     unsigned int __count;
  69     int __owner;
  70 #if __WORDSIZE == 64
  71     unsigned int __nusers;
  72 #endif
  73     /* KIND must stay at this position in the structure to maintain
  74        binary compatibility.  */
  75     int __kind;
  76 #if __WORDSIZE != 64
  77     unsigned int __nusers;
  78 #endif
  79     int __spins;
  80   } __data;
  81   char __size[__SIZEOF_PTHREAD_MUTEX_T];
  82   long int __align;
  83 } pthread_mutex_t;
  84
  85 typedef union
  86 {
  87   char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
  88   int __align;
  89 } pthread_mutexattr_t;
  90
  91
  92 /* Data structure for conditional variable handling.  The structure of
  93    the attribute type is deliberately not exposed.  */
  94 typedef union
  95 {
  96   struct
  97   {
  98     int __lock;
  99     unsigned int __futex;
 100     __extension__ unsigned long long int __total_seq;
 101     __extension__ unsigned long long int __wakeup_seq;
 102     __extension__ unsigned long long int __woken_seq;
 103     void *__mutex;
 104     unsigned int __nwaiters;
 105     unsigned int __broadcast_seq;
 106   } __data;
 107   char __size[__SIZEOF_PTHREAD_COND_T];
 108   __extension__ long long int __align;
 109 } pthread_cond_t;
 110
 111 typedef union
 112 {
 113   char __size[__SIZEOF_PTHREAD_CONDATTR_T];
 114   int __align;
 115 } pthread_condattr_t;
 116
 117
 118 /* Keys for thread-specific data */
 119 typedef unsigned int pthread_key_t;
 120
 121
 122 /* Once-only execution */
 123 typedef int pthread_once_t;
 124
 125
 126 #if defined __USE_UNIX98 || defined __USE_XOPEN2K
 127 /* Data structure for read-write lock variable handling.  The
 128    structure of the attribute type is deliberately not exposed.  */
 129 typedef union
 130 {
 131 # if __WORDSIZE == 64
 132   struct
 133   {
 134     int __lock;
 135     unsigned int __nr_readers;
 136     unsigned int __readers_wakeup;
 137     unsigned int __writer_wakeup;
 138     unsigned int __nr_readers_queued;
 139     unsigned int __nr_writers_queued;
 140     int __writer;
 141     int __pad1;
 142     unsigned long int __pad2;
 143     unsigned long int __pad3;
 144     /* FLAGS must stay at this position in the structure to maintain
 145        binary compatibility.  */
 146     unsigned int __flags;
 147   } __data;
 148 # else
 149   struct
 150   {
 151     int __lock;
 152     unsigned int __nr_readers;
 153     unsigned int __readers_wakeup;
 154     unsigned int __writer_wakeup;
 155     unsigned int __nr_readers_queued;
 156     unsigned int __nr_writers_queued;
 157     /* FLAGS must stay at this position in the structure to maintain
 158        binary compatibility.  */
 159     unsigned int __flags;
 160     int __writer;
 161   } __data;
 162 # endif
 163   char __size[__SIZEOF_PTHREAD_RWLOCK_T];
 164   long int __align;
 165 } pthread_rwlock_t;
 166
 167 typedef union
 168 {
 169   char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
 170   long int __align;
 171 } pthread_rwlockattr_t;
 172 #endif
 173
 174
 175 #ifdef __USE_XOPEN2K
 176 /* POSIX spinlock data type.  */
 177 typedef volatile int pthread_spinlock_t;
 178
 179
 180 /* POSIX barriers data type.  The structure of the type is
 181    deliberately not exposed.  */
 182 typedef union
 183 {
 184   char __size[__SIZEOF_PTHREAD_BARRIER_T];
 185   long int __align;
 186 } pthread_barrier_t;
 187
 188 typedef union
 189 {
 190   char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
 191   int __align;
 192 } pthread_barrierattr_t;
 193 #endif
 194
 195
 196 #endif  /* bits/pthreadtypes.h */