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

   1 /* Machine-specific pthread type layouts.  SPARC version.
   2    Copyright (C) 2003, 2004, 2005, 2006, 2007 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 #if __WORDSIZE == 64
  62 typedef struct __pthread_internal_list
  63 {
  64   struct __pthread_internal_list *__prev;
  65   struct __pthread_internal_list *__next;
  66 } __pthread_list_t;
  67 #else
  68 typedef struct __pthread_internal_slist
  69 {
  70   struct __pthread_internal_slist *__next;
  71 } __pthread_slist_t;
  72 #endif
  73
  74
  75 /* Data structures for mutex handling.  The structure of the attribute
  76    type is deliberately not exposed.  */
  77 typedef union
  78 {
  79   struct __pthread_mutex_s
  80   {
  81     int __lock;
  82     unsigned int __count;
  83     int __owner;
  84 #if __WORDSIZE == 64
  85     unsigned int __nusers;
  86 #endif
  87     /* KIND must stay at this position in the structure to maintain
  88        binary compatibility.  */
  89     int __kind;
  90 #if __WORDSIZE == 64
  91     int __spins;
  92     __pthread_list_t __list;
  93 # define __PTHREAD_MUTEX_HAVE_PREV      1
  94 #else
  95     unsigned int __nusers;
  96     __extension__ union
  97     {
  98       int __spins;
  99       __pthread_slist_t __list;
 100     };
 101 #endif
 102   } __data;
 103   char __size[__SIZEOF_PTHREAD_MUTEX_T];
 104   long int __align;
 105 } pthread_mutex_t;
 106
 107 typedef union
 108 {
 109   char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
 110   int __align;
 111 } pthread_mutexattr_t;
 112
 113
 114 /* Data structure for conditional variable handling.  The structure of
 115    the attribute type is deliberately not exposed.  */
 116 typedef union
 117 {
 118   struct
 119   {
 120     int __lock;
 121     unsigned int __futex;
 122     __extension__ unsigned long long int __total_seq;
 123     __extension__ unsigned long long int __wakeup_seq;
 124     __extension__ unsigned long long int __woken_seq;
 125     void *__mutex;
 126     unsigned int __nwaiters;
 127     unsigned int __broadcast_seq;
 128   } __data;
 129   char __size[__SIZEOF_PTHREAD_COND_T];
 130   __extension__ long long int __align;
 131 } pthread_cond_t;
 132
 133 typedef union
 134 {
 135   char __size[__SIZEOF_PTHREAD_CONDATTR_T];
 136   int __align;
 137 } pthread_condattr_t;
 138
 139
 140 /* Keys for thread-specific data */
 141 typedef unsigned int pthread_key_t;
 142
 143
 144 /* Once-only execution */
 145 typedef int pthread_once_t;
 146
 147
 148 #if defined __USE_UNIX98 || defined __USE_XOPEN2K
 149 /* Data structure for read-write lock variable handling.  The
 150    structure of the attribute type is deliberately not exposed.  */
 151 typedef union
 152 {
 153 # if __WORDSIZE == 64
 154   struct
 155   {
 156     int __lock;
 157     unsigned int __nr_readers;
 158     unsigned int __readers_wakeup;
 159     unsigned int __writer_wakeup;
 160     unsigned int __nr_readers_queued;
 161     unsigned int __nr_writers_queued;
 162     int __writer;
 163     int __shared;
 164     unsigned long int __pad1;
 165     unsigned long int __pad2;
 166     /* FLAGS must stay at this position in the structure to maintain
 167        binary compatibility.  */
 168     unsigned int __flags;
 169   } __data;
 170 # else
 171   struct
 172   {
 173     int __lock;
 174     unsigned int __nr_readers;
 175     unsigned int __readers_wakeup;
 176     unsigned int __writer_wakeup;
 177     unsigned int __nr_readers_queued;
 178     unsigned int __nr_writers_queued;
 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     int __writer;
 186   } __data;
 187 # endif
 188   char __size[__SIZEOF_PTHREAD_RWLOCK_T];
 189   long int __align;
 190 } pthread_rwlock_t;
 191
 192 typedef union
 193 {
 194   char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
 195   long int __align;
 196 } pthread_rwlockattr_t;
 197 #endif
 198
 199
 200 #ifdef __USE_XOPEN2K
 201 /* POSIX spinlock data type.  */
 202 typedef volatile int pthread_spinlock_t;
 203
 204
 205 /* POSIX barriers data type.  The structure of the type is
 206    deliberately not exposed.  */
 207 typedef union
 208 {
 209   char __size[__SIZEOF_PTHREAD_BARRIER_T];
 210   long int __align;
 211 } pthread_barrier_t;
 212
 213 typedef union
 214 {
 215   char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
 216   int __align;
 217 } pthread_barrierattr_t;
 218 #endif
 219
 220
 221 #endif  /* bits/pthreadtypes.h */