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

   1 /* Copyright (C) 2002, 2003, 2004 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 /* Data structures for mutex handling.  The structure of the attribute
  48    type is not exposed on purpose.  */
  49 typedef union
  50 {
  51   struct
  52   {
  53     int __lock;
  54     unsigned int __count;
  55     int __owner;
  56     /* KIND must stay at this position in the structure to maintain
  57        binary compatibility.  */
  58     int __kind;
  59     unsigned int __nusers;
  60     int __spins;
  61   } __data;
  62   char __size[__SIZEOF_PTHREAD_MUTEX_T];
  63   long int __align;
  64 } pthread_mutex_t;
  65
  66 typedef union
  67 {
  68   char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
  69   long int __align;
  70 } pthread_mutexattr_t;
  71
  72
  73 /* Data structure for conditional variable handling.  The structure of
  74    the attribute type is not exposed on purpose.  */
  75 typedef union
  76 {
  77   struct
  78   {
  79     int __lock;
  80     unsigned int __futex;
  81     __extension__ unsigned long long int __total_seq;
  82     __extension__ unsigned long long int __wakeup_seq;
  83     __extension__ unsigned long long int __woken_seq;
  84     void *__mutex;
  85     unsigned int __nwaiters;
  86     unsigned int __broadcast_seq;
  87   } __data;
  88   char __size[__SIZEOF_PTHREAD_COND_T];
  89   __extension__ long long int __align;
  90 } pthread_cond_t;
  91
  92 typedef union
  93 {
  94   char __size[__SIZEOF_PTHREAD_CONDATTR_T];
  95   long int __align;
  96 } pthread_condattr_t;
  97
  98
  99 /* Keys for thread-specific data */
 100 typedef unsigned int pthread_key_t;
 101
 102
 103 /* Once-only execution */
 104 typedef int pthread_once_t;
 105
 106
 107 #if defined __USE_UNIX98 || defined __USE_XOPEN2K
 108 /* Data structure for read-write lock variable handling.  The
 109    structure of the attribute type is not exposed on purpose.  */
 110 typedef union
 111 {
 112   struct
 113   {
 114     int __lock;
 115     unsigned int __nr_readers;
 116     unsigned int __readers_wakeup;
 117     unsigned int __writer_wakeup;
 118     unsigned int __nr_readers_queued;
 119     unsigned int __nr_writers_queued;
 120     /* FLAGS must stay at this position in the structure to maintain
 121        binary compatibility.  */
 122     unsigned int __flags;
 123     pthread_t __writer;
 124   } __data;
 125   char __size[__SIZEOF_PTHREAD_RWLOCK_T];
 126   long int __align;
 127 } pthread_rwlock_t;
 128
 129 typedef union
 130 {
 131   char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
 132   long int __align;
 133 } pthread_rwlockattr_t;
 134 #endif
 135
 136
 137 #ifdef __USE_XOPEN2K
 138 /* POSIX spinlock data type.  */
 139 typedef volatile int pthread_spinlock_t;
 140
 141
 142 /* POSIX barriers data type.  The structure of the type is
 143    deliberately not exposed.  */
 144 typedef union
 145 {
 146   char __size[__SIZEOF_PTHREAD_BARRIER_T];
 147   long int __align;
 148 } pthread_barrier_t;
 149
 150 typedef union
 151 {
 152   char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
 153   int __align;
 154 } pthread_barrierattr_t;
 155 #endif
 156
 157
 158 #endif  /* bits/pthreadtypes.h */