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

   1 /* Machine-specific pthread type layouts.  PowerPC version.
   2    Copyright (C) 2003 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Paul Mackerras <paulus@au.ibm.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 struct __opaque_pthread *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     struct pthread *__owner;
  70     /* KIND must stay at this position in the structure to maintain
  71        binary compatibility.  */
  72     int __kind;
  73   } __data;
  74   char __size[__SIZEOF_PTHREAD_MUTEX_T];
  75   long int __align;
  76 } pthread_mutex_t;
  77
  78 typedef union
  79 {
  80   char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
  81   long int __align;
  82 } pthread_mutexattr_t;
  83
  84
  85 /* Data structure for conditional variable handling.  The structure of
  86    the attribute type is deliberately not exposed.  */
  87 typedef union
  88 {
  89   struct
  90   {
  91     int __lock;
  92     int __pad;
  93     unsigned long long int __total_seq;
  94     unsigned long long int __wakeup_seq;
  95     unsigned long long int __woken_seq;
  96   } __data;
  97   char __size[__SIZEOF_PTHREAD_COND_T];
  98   long int __align;
  99 } pthread_cond_t;
 100
 101 typedef union
 102 {
 103   char __size[__SIZEOF_PTHREAD_CONDATTR_T];
 104   long int __align;
 105 } pthread_condattr_t;
 106
 107
 108 /* Keys for thread-specific data */
 109 typedef unsigned int pthread_key_t;
 110
 111
 112 /* Once-only execution */
 113 typedef int pthread_once_t;
 114
 115
 116 #ifdef __USE_UNIX98
 117 /* Data structure for read-write lock variable handling.  The
 118    structure of the attribute type is deliberately not exposed.  */
 119 typedef union
 120 {
 121   struct
 122   {
 123     int __lock;
 124     unsigned int __nr_readers;
 125     unsigned int __readers_wakeup;
 126     unsigned int __writer_wakeup;
 127     unsigned int __nr_readers_queued;
 128     unsigned int __nr_writers_queued;
 129     pthread_t __writer;
 130     /* FLAGS must stay at this position in the structure to maintain
 131        binary compatibility.  */
 132     unsigned int __flags;
 133   } __data;
 134   char __size[__SIZEOF_PTHREAD_RWLOCK_T];
 135   long int __align;
 136 } pthread_rwlock_t;
 137
 138 typedef union
 139 {
 140   char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
 141   long int __align;
 142 } pthread_rwlockattr_t;
 143 #endif
 144
 145
 146 #ifdef __USE_XOPEN2K
 147 /* POSIX spinlock data type.  */
 148 typedef volatile int pthread_spinlock_t;
 149
 150
 151 /* POSIX barriers data type.  The structure of the type is
 152    deliberately not exposed.  */
 153 typedef union
 154 {
 155   char __size[__SIZEOF_PTHREAD_BARRIER_T];
 156   long int __align;
 157 } pthread_barrier_t;
 158
 159 typedef union
 160 {
 161   char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
 162   int __align;
 163 } pthread_barrierattr_t;
 164 #endif
 165
 166
 167 #endif  /* bits/pthreadtypes.h */