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

   1 /* Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #ifndef _BITS_PTHREADTYPES_H
  21 #define _BITS_PTHREADTYPES_H    1
  22
  23 #define __SIZEOF_PTHREAD_ATTR_T 36
  24 #define __SIZEOF_PTHREAD_MUTEX_T 24
  25 #define __SIZEOF_PTHREAD_MUTEXATTR_T 4
  26 #define __SIZEOF_PTHREAD_COND_T 48
  27 #define __SIZEOF_PTHREAD_COND_COMPAT_T 12
  28 #define __SIZEOF_PTHREAD_CONDATTR_T 4
  29 #define __SIZEOF_PTHREAD_RWLOCK_T 32
  30 #define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
  31 #define __SIZEOF_PTHREAD_BARRIER_T 20
  32 #define __SIZEOF_PTHREAD_BARRIERATTR_T 4
  33
  34
  35 /* Thread identifiers.  The structure of the attribute type is not
  36    exposed on purpose.  */
  37 typedef unsigned long int pthread_t;
  38
  39
  40 typedef union
  41 {
  42   char __size[__SIZEOF_PTHREAD_ATTR_T];
  43   long int __align;
  44 } pthread_attr_t;
  45
  46
  47 typedef struct __pthread_internal_slist
  48 {
  49   struct __pthread_internal_slist *__next;
  50 } __pthread_slist_t;
  51
  52
  53 /* Data structures for mutex handling.  The structure of the attribute
  54    type is not exposed on purpose.  */
  55 typedef union
  56 {
  57   struct __pthread_mutex_s
  58   {
  59     int __lock;
  60     unsigned int __count;
  61     int __owner;
  62     /* KIND must stay at this position in the structure to maintain
  63        binary compatibility.  */
  64     int __kind;
  65     unsigned int __nusers;
  66     __extension__ union
  67     {
  68       int __spins;
  69       __pthread_slist_t __list;
  70     };
  71   } __data;
  72   char __size[__SIZEOF_PTHREAD_MUTEX_T];
  73   long int __align;
  74 } pthread_mutex_t;
  75
  76 typedef union
  77 {
  78   char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
  79   long int __align;
  80 } pthread_mutexattr_t;
  81
  82
  83 /* Data structure for conditional variable handling.  The structure of
  84    the attribute type is not exposed on purpose.  */
  85 typedef union
  86 {
  87   struct
  88   {
  89     int __lock;
  90     unsigned int __futex;
  91     __extension__ unsigned long long int __total_seq;
  92     __extension__ unsigned long long int __wakeup_seq;
  93     __extension__ unsigned long long int __woken_seq;
  94     void *__mutex;
  95     unsigned int __nwaiters;
  96     unsigned int __broadcast_seq;
  97   } __data;
  98   char __size[__SIZEOF_PTHREAD_COND_T];
  99   __extension__ long long int __align;
 100 } pthread_cond_t;
 101
 102 typedef union
 103 {
 104   char __size[__SIZEOF_PTHREAD_CONDATTR_T];
 105   long int __align;
 106 } pthread_condattr_t;
 107
 108
 109 /* Keys for thread-specific data */
 110 typedef unsigned int pthread_key_t;
 111
 112
 113 /* Once-only execution */
 114 typedef int pthread_once_t;
 115
 116
 117 #if defined __USE_UNIX98 || defined __USE_XOPEN2K
 118 /* Data structure for read-write lock variable handling.  The
 119    structure of the attribute type is not exposed on purpose.  */
 120 typedef union
 121 {
 122   struct
 123   {
 124     int __lock;
 125     unsigned int __nr_readers;
 126     unsigned int __readers_wakeup;
 127     unsigned int __writer_wakeup;
 128     unsigned int __nr_readers_queued;
 129     unsigned int __nr_writers_queued;
 130     /* FLAGS must stay at this position in the structure to maintain
 131        binary compatibility.  */
 132     unsigned int __flags;
 133     pthread_t __writer;
 134   } __data;
 135   char __size[__SIZEOF_PTHREAD_RWLOCK_T];
 136   long int __align;
 137 } pthread_rwlock_t;
 138
 139 typedef union
 140 {
 141   char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
 142   long int __align;
 143 } pthread_rwlockattr_t;
 144 #endif
 145
 146
 147 #ifdef __USE_XOPEN2K
 148 /* POSIX spinlock data type.  */
 149 typedef volatile int pthread_spinlock_t;
 150
 151
 152 /* POSIX barriers data type.  The structure of the type is
 153    deliberately not exposed.  */
 154 typedef union
 155 {
 156   char __size[__SIZEOF_PTHREAD_BARRIER_T];
 157   long int __align;
 158 } pthread_barrier_t;
 159
 160 typedef union
 161 {
 162   char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
 163   int __align;
 164 } pthread_barrierattr_t;
 165 #endif
 166
 167
 168 #endif  /* bits/pthreadtypes.h */