sysdeps/mips/nptl/bits/pthreadtypes.h

   1 /* Machine-specific pthread type layouts.  MIPS version.
   2    Copyright (C) 2005-2016 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   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, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _BITS_PTHREADTYPES_H
  20 #define _BITS_PTHREADTYPES_H    1
  21
  22 #include <endian.h>
  23
  24 #if _MIPS_SIM == _ABI64
  25 # define __SIZEOF_PTHREAD_ATTR_T 56
  26 # define __SIZEOF_PTHREAD_MUTEX_T 40
  27 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
  28 # define __SIZEOF_PTHREAD_COND_T 48
  29 # define __SIZEOF_PTHREAD_CONDATTR_T 4
  30 # define __SIZEOF_PTHREAD_RWLOCK_T 56
  31 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
  32 # define __SIZEOF_PTHREAD_BARRIER_T 32
  33 # define __SIZEOF_PTHREAD_BARRIERATTR_T 4
  34 #else
  35 # define __SIZEOF_PTHREAD_ATTR_T 36
  36 # define __SIZEOF_PTHREAD_MUTEX_T 24
  37 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
  38 # define __SIZEOF_PTHREAD_COND_T 48
  39 # define __SIZEOF_PTHREAD_CONDATTR_T 4
  40 # define __SIZEOF_PTHREAD_RWLOCK_T 32
  41 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
  42 # define __SIZEOF_PTHREAD_BARRIER_T 20
  43 # define __SIZEOF_PTHREAD_BARRIERATTR_T 4
  44 #endif
  45
  46
  47 /* Thread identifiers.  The structure of the attribute type is
  48    deliberately not exposed.  */
  49 typedef unsigned long int pthread_t;
  50
  51
  52 union pthread_attr_t
  53 {
  54   char __size[__SIZEOF_PTHREAD_ATTR_T];
  55   long int __align;
  56 };
  57 #ifndef __have_pthread_attr_t
  58 typedef union pthread_attr_t pthread_attr_t;
  59 # define __have_pthread_attr_t  1
  60 #endif
  61
  62
  63 #if _MIPS_SIM == _ABI64
  64 typedef struct __pthread_internal_list
  65 {
  66   struct __pthread_internal_list *__prev;
  67   struct __pthread_internal_list *__next;
  68 } __pthread_list_t;
  69 #else
  70 typedef struct __pthread_internal_slist
  71 {
  72   struct __pthread_internal_slist *__next;
  73 } __pthread_slist_t;
  74 #endif
  75
  76
  77 /* Data structures for mutex handling.  The structure of the attribute
  78    type is deliberately not exposed.  */
  79 typedef union
  80 {
  81   struct __pthread_mutex_s
  82   {
  83     int __lock;
  84     unsigned int __count;
  85     int __owner;
  86 #if _MIPS_SIM == _ABI64
  87     unsigned int __nusers;
  88 #endif
  89     /* KIND must stay at this position in the structure to maintain
  90        binary compatibility with static initializers.  */
  91     int __kind;
  92 #if _MIPS_SIM == _ABI64
  93     int __spins;
  94     __pthread_list_t __list;
  95 # define __PTHREAD_MUTEX_HAVE_PREV      1
  96 #else
  97     unsigned int __nusers;
  98     __extension__ union
  99     {
 100       int __spins;
 101       __pthread_slist_t __list;
 102     };
 103 #endif
 104   } __data;
 105   char __size[__SIZEOF_PTHREAD_MUTEX_T];
 106   long int __align;
 107 } pthread_mutex_t;
 108
 109 /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
 110 #define __PTHREAD_SPINS 0
 111
 112 typedef union
 113 {
 114   char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
 115   int __align;
 116 } pthread_mutexattr_t;
 117
 118
 119 /* Data structure for conditional variable handling.  The structure of
 120    the attribute type is deliberately not exposed.  */
 121 typedef union
 122 {
 123   struct
 124   {
 125     int __lock;
 126     unsigned int __futex;
 127     __extension__ unsigned long long int __total_seq;
 128     __extension__ unsigned long long int __wakeup_seq;
 129     __extension__ unsigned long long int __woken_seq;
 130     void *__mutex;
 131     unsigned int __nwaiters;
 132     unsigned int __broadcast_seq;
 133   } __data;
 134   char __size[__SIZEOF_PTHREAD_COND_T];
 135   __extension__ long long int __align;
 136 } pthread_cond_t;
 137
 138 typedef union
 139 {
 140   char __size[__SIZEOF_PTHREAD_CONDATTR_T];
 141   int __align;
 142 } pthread_condattr_t;
 143
 144
 145 /* Keys for thread-specific data */
 146 typedef unsigned int pthread_key_t;
 147
 148
 149 /* Once-only execution */
 150 typedef int pthread_once_t;
 151
 152
 153 #if defined __USE_UNIX98 || defined __USE_XOPEN2K
 154 /* Data structure for read-write lock variable handling.  The
 155    structure of the attribute type is deliberately not exposed.  */
 156 typedef union
 157 {
 158 # if _MIPS_SIM == _ABI64
 159   struct
 160   {
 161     int __lock;
 162     unsigned int __nr_readers;
 163     unsigned int __readers_wakeup;
 164     unsigned int __writer_wakeup;
 165     unsigned int __nr_readers_queued;
 166     unsigned int __nr_writers_queued;
 167     int __writer;
 168     int __shared;
 169     unsigned long int __pad1;
 170     unsigned long int __pad2;
 171     /* FLAGS must stay at this position in the structure to maintain
 172        binary compatibility.  */
 173     unsigned int __flags;
 174   } __data;
 175 # else
 176   struct
 177   {
 178     int __lock;
 179     unsigned int __nr_readers;
 180     unsigned int __readers_wakeup;
 181     unsigned int __writer_wakeup;
 182     unsigned int __nr_readers_queued;
 183     unsigned int __nr_writers_queued;
 184 #if __BYTE_ORDER == __BIG_ENDIAN
 185     unsigned char __pad1;
 186     unsigned char __pad2;
 187     unsigned char __shared;
 188     /* FLAGS must stay at this position in the structure to maintain
 189        binary compatibility.  */
 190     unsigned char __flags;
 191 #else
 192     /* FLAGS must stay at this position in the structure to maintain
 193        binary compatibility.  */
 194     unsigned char __flags;
 195     unsigned char __shared;
 196     unsigned char __pad1;
 197     unsigned char __pad2;
 198 #endif
 199     int __writer;
 200   } __data;
 201 # endif
 202   char __size[__SIZEOF_PTHREAD_RWLOCK_T];
 203   long int __align;
 204 } pthread_rwlock_t;
 205
 206 #define __PTHREAD_RWLOCK_ELISION_EXTRA 0
 207
 208 typedef union
 209 {
 210   char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
 211   long int __align;
 212 } pthread_rwlockattr_t;
 213 #endif
 214
 215
 216 #ifdef __USE_XOPEN2K
 217 /* POSIX spinlock data type.  */
 218 typedef volatile int pthread_spinlock_t;
 219
 220
 221 /* POSIX barriers data type.  The structure of the type is
 222    deliberately not exposed.  */
 223 typedef union
 224 {
 225   char __size[__SIZEOF_PTHREAD_BARRIER_T];
 226   long int __align;
 227 } pthread_barrier_t;
 228
 229 typedef union
 230 {
 231   char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
 232   int __align;
 233 } pthread_barrierattr_t;
 234 #endif
 235
 236
 237 #endif  /* bits/pthreadtypes.h */