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

   1 /* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007
   2    Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   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 <endian.h>
  25
  26 #define __SIZEOF_PTHREAD_ATTR_T 36
  27 #define __SIZEOF_PTHREAD_MUTEX_T 24
  28 #define __SIZEOF_PTHREAD_MUTEXATTR_T 4
  29 #define __SIZEOF_PTHREAD_COND_T 48
  30 #define __SIZEOF_PTHREAD_COND_COMPAT_T 12
  31 #define __SIZEOF_PTHREAD_CONDATTR_T 4
  32 #define __SIZEOF_PTHREAD_RWLOCK_T 32
  33 #define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
  34 #define __SIZEOF_PTHREAD_BARRIER_T 20
  35 #define __SIZEOF_PTHREAD_BARRIERATTR_T 4
  36
  37
  38 /* Thread identifiers.  The structure of the attribute type is not
  39    exposed on purpose.  */
  40 typedef unsigned long int pthread_t;
  41
  42
  43 typedef union
  44 {
  45   char __size[__SIZEOF_PTHREAD_ATTR_T];
  46   long int __align;
  47 } pthread_attr_t;
  48
  49
  50 typedef struct __pthread_internal_slist
  51 {
  52   struct __pthread_internal_slist *__next;
  53 } __pthread_slist_t;
  54
  55
  56 /* Data structures for mutex handling.  The structure of the attribute
  57    type is not exposed on purpose.  */
  58 typedef union
  59 {
  60   struct __pthread_mutex_s
  61   {
  62     int __lock;
  63     unsigned int __count;
  64     int __owner;
  65     /* KIND must stay at this position in the structure to maintain
  66        binary compatibility.  */
  67     int __kind;
  68     unsigned int __nusers;
  69     __extension__ union
  70     {
  71       int __spins;
  72       __pthread_slist_t __list;
  73     };
  74   } __data;
  75   char __size[__SIZEOF_PTHREAD_MUTEX_T];
  76   long int __align;
  77 } pthread_mutex_t;
  78
  79 typedef union
  80 {
  81   char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
  82   long int __align;
  83 } pthread_mutexattr_t;
  84
  85
  86 /* Data structure for conditional variable handling.  The structure of
  87    the attribute type is not exposed on purpose.  */
  88 typedef union
  89 {
  90   struct
  91   {
  92     int __lock;
  93     unsigned int __futex;
  94     __extension__ unsigned long long int __total_seq;
  95     __extension__ unsigned long long int __wakeup_seq;
  96     __extension__ unsigned long long int __woken_seq;
  97     void *__mutex;
  98     unsigned int __nwaiters;
  99     unsigned int __broadcast_seq;
 100   } __data;
 101   char __size[__SIZEOF_PTHREAD_COND_T];
 102   __extension__ long long int __align;
 103 } pthread_cond_t;
 104
 105 typedef union
 106 {
 107   char __size[__SIZEOF_PTHREAD_CONDATTR_T];
 108   long int __align;
 109 } pthread_condattr_t;
 110
 111
 112 /* Keys for thread-specific data */
 113 typedef unsigned int pthread_key_t;
 114
 115
 116 /* Once-only execution */
 117 typedef int pthread_once_t;
 118
 119
 120 #if defined __USE_UNIX98 || defined __USE_XOPEN2K
 121 /* Data structure for read-write lock variable handling.  The
 122    structure of the attribute type is not exposed on purpose.  */
 123 typedef union
 124 {
 125   struct
 126   {
 127     int __lock;
 128     unsigned int __nr_readers;
 129     unsigned int __readers_wakeup;
 130     unsigned int __writer_wakeup;
 131     unsigned int __nr_readers_queued;
 132     unsigned int __nr_writers_queued;
 133 #if __BYTE_ORDER == __BIG_ENDIAN
 134     unsigned char __pad1;
 135     unsigned char __pad2;
 136     unsigned char __shared;
 137     /* FLAGS must stay at this position in the structure to maintain
 138        binary compatibility.  */
 139     unsigned char __flags;
 140 #else
 141     /* FLAGS must stay at this position in the structure to maintain
 142        binary compatibility.  */
 143     unsigned char __flags;
 144     unsigned char __shared;
 145     unsigned char __pad1;
 146     unsigned char __pad2;
 147 #endif
 148     pthread_t __writer;
 149   } __data;
 150   char __size[__SIZEOF_PTHREAD_RWLOCK_T];
 151   long int __align;
 152 } pthread_rwlock_t;
 153
 154 typedef union
 155 {
 156   char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
 157   long int __align;
 158 } pthread_rwlockattr_t;
 159 #endif
 160
 161
 162 #ifdef __USE_XOPEN2K
 163 /* POSIX spinlock data type.  */
 164 typedef volatile int pthread_spinlock_t;
 165
 166
 167 /* POSIX barriers data type.  The structure of the type is
 168    deliberately not exposed.  */
 169 typedef union
 170 {
 171   char __size[__SIZEOF_PTHREAD_BARRIER_T];
 172   long int __align;
 173 } pthread_barrier_t;
 174
 175 typedef union
 176 {
 177   char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
 178   int __align;
 179 } pthread_barrierattr_t;
 180 #endif
 181
 182
 183 #endif  /* bits/pthreadtypes.h */