libpthread/nptl/sysdeps/unix/sysv/linux/aarch64/bits/pthreadtypes.h

   1 /* Copyright (C) 2002-2017 Free Software Foundation, Inc.
   2
   3    The GNU C Library is free software; you can redistribute it and/or
   4    modify it under the terms of the GNU Lesser General Public
   5    License as published by the Free Software Foundation; either
   6    version 2.1 of the License, or (at your option) any later version.
   7
   8    The GNU C Library is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11    Lesser General Public License for more details.
  12
  13    You should have received a copy of the GNU Lesser General Public
  14    License along with the GNU C Library; if not, see
  15    <http://www.gnu.org/licenses/>.  */
  16
  17 #ifndef _BITS_PTHREADTYPES_H
  18 #define _BITS_PTHREADTYPES_H    1
  19
  20 #include <endian.h>
  21
  22 #define __SIZEOF_PTHREAD_ATTR_T        64
  23 #define __SIZEOF_PTHREAD_MUTEX_T       48
  24 #define __SIZEOF_PTHREAD_MUTEXATTR_T    8
  25 #define __SIZEOF_PTHREAD_COND_T        48
  26 #define __SIZEOF_PTHREAD_COND_COMPAT_T 48
  27 #define __SIZEOF_PTHREAD_CONDATTR_T     8
  28 #define __SIZEOF_PTHREAD_RWLOCK_T      56
  29 #define __SIZEOF_PTHREAD_RWLOCKATTR_T   8
  30 #define __SIZEOF_PTHREAD_BARRIER_T     32
  31 #define __SIZEOF_PTHREAD_BARRIERATTR_T  8
  32
  33 #define __PTHREAD_RWLOCK_INT_FLAGS_SHARED 1
  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 union pthread_attr_t
  40 {
  41   char __size[__SIZEOF_PTHREAD_ATTR_T];
  42   long int __align;
  43 };
  44 #ifndef __have_pthread_attr_t
  45 typedef union pthread_attr_t pthread_attr_t;
  46 # define __have_pthread_attr_t  1
  47 #endif
  48
  49 typedef struct __pthread_internal_list
  50 {
  51   struct __pthread_internal_list *__prev;
  52   struct __pthread_internal_list *__next;
  53 } __pthread_list_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     unsigned int __nusers;
  66     /* KIND must stay at this position in the structure to maintain
  67        binary compatibility with static initializers.  */
  68     int __kind;
  69     int __spins;
  70     __pthread_list_t __list;
  71 #define __PTHREAD_MUTEX_HAVE_PREV       1
  72   } __data;
  73   char __size[__SIZEOF_PTHREAD_MUTEX_T];
  74   long int __align;
  75 } pthread_mutex_t;
  76
  77 typedef union
  78 {
  79   char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
  80   long int __align;
  81 } pthread_mutexattr_t;
  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   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     int __writer;
 131     int __shared;
 132     unsigned long int __pad1;
 133     unsigned long int __pad2;
 134     unsigned int __flags;
 135   } __data;
 136   char __size[__SIZEOF_PTHREAD_RWLOCK_T];
 137   long int __align;
 138 } pthread_rwlock_t;
 139
 140 typedef union
 141 {
 142   char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
 143   long int __align;
 144 } pthread_rwlockattr_t;
 145 #endif
 146
 147
 148 #ifdef __USE_XOPEN2K
 149 /* POSIX spinlock data type.  */
 150 typedef volatile int pthread_spinlock_t;
 151
 152
 153 /* POSIX barriers data type.  The structure of the type is
 154    deliberately not exposed.  */
 155 typedef union
 156 {
 157   char __size[__SIZEOF_PTHREAD_BARRIER_T];
 158   long int __align;
 159 } pthread_barrier_t;
 160
 161 typedef union
 162 {
 163   char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
 164   int __align;
 165 } pthread_barrierattr_t;
 166 #endif
 167
 168 #endif  /* bits/pthreadtypes.h */