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
  40 union pthread_attr_t
  41 {
  42   char __size[__SIZEOF_PTHREAD_ATTR_T];
  43   long int __align;
  44 };
  45 #ifndef __have_pthread_attr_t
  46 typedef union pthread_attr_t pthread_attr_t;
  47 # define __have_pthread_attr_t1
  48 #endif
  49
  50 typedef struct __pthread_internal_list
  51 {
  52   struct __pthread_internal_list *__prev;
  53   struct __pthread_internal_list *__next;
  54 } __pthread_list_t;
  55
  56
  57 /* Data structures for mutex handling.  The structure of the attribute
  58    type is not exposed on purpose.  */
  59 typedef union
  60 {
  61   struct __pthread_mutex_s
  62   {
  63     int __lock;
  64     unsigned int __count;
  65     int __owner;
  66     unsigned int __nusers;
  67     /* KIND must stay at this position in the structure to maintain
  68        binary compatibility with static initializers.  */
  69     int __kind;
  70     int __spins;
  71     __pthread_list_t __list;
  72 #define __PTHREAD_MUTEX_HAVE_PREV       1
  73   } __data;
  74   char __size[__SIZEOF_PTHREAD_MUTEX_T];
  75   long int __align;
  76 } pthread_mutex_t;
  77
  78 /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
  79 #define __PTHREAD_SPINS 0
  80
  81 typedef union
  82 {
  83   char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
  84   long int __align;
  85 } pthread_mutexattr_t;
  86
  87 /* Data structure for conditional variable handling.  The structure of
  88    the attribute type is not exposed on purpose.  */
  89 typedef union
  90 {
  91   struct
  92   {
  93     int __lock;
  94     unsigned int __futex;
  95     __extension__ unsigned long long int __total_seq;
  96     __extension__ unsigned long long int __wakeup_seq;
  97     __extension__ unsigned long long int __woken_seq;
  98     void *__mutex;
  99     unsigned int __nwaiters;
 100     unsigned int __broadcast_seq;
 101   } __data;
 102   char __size[__SIZEOF_PTHREAD_COND_T];
 103   __extension__ long long int __align;
 104 } pthread_cond_t;
 105
 106 typedef union
 107 {
 108   char __size[__SIZEOF_PTHREAD_CONDATTR_T];
 109   int __align;
 110 } pthread_condattr_t;
 111
 112
 113 /* Keys for thread-specific data */
 114 typedef unsigned int pthread_key_t;
 115
 116
 117 /* Once-only execution */
 118 typedef int pthread_once_t;
 119
 120
 121 #if defined __USE_UNIX98 || defined __USE_XOPEN2K
 122 /* Data structure for read-write lock variable handling.  The
 123    structure of the attribute type is not exposed on purpose.  */
 124 typedef union
 125 {
 126   struct
 127   {
 128     int __lock;
 129     unsigned int __nr_readers;
 130     unsigned int __readers_wakeup;
 131     unsigned int __writer_wakeup;
 132     unsigned int __nr_readers_queued;
 133     unsigned int __nr_writers_queued;
 134     int __writer;
 135     int __shared;
 136     unsigned long int __pad1;
 137     unsigned long int __pad2;
 138     unsigned int __flags;
 139   } __data;
 140   char __size[__SIZEOF_PTHREAD_RWLOCK_T];
 141   long int __align;
 142 } pthread_rwlock_t;
 143
 144 #define __PTHREAD_RWLOCK_ELISION_EXTRA 0
 145
 146 typedef union
 147 {
 148   char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
 149   long int __align;
 150 } pthread_rwlockattr_t;
 151 #endif
 152
 153
 154 #ifdef __USE_XOPEN2K
 155 /* POSIX spinlock data type.  */
 156 typedef volatile int pthread_spinlock_t;
 157
 158
 159 /* POSIX barriers data type.  The structure of the type is
 160    deliberately not exposed.  */
 161 typedef union
 162 {
 163   char __size[__SIZEOF_PTHREAD_BARRIER_T];
 164   long int __align;
 165 } pthread_barrier_t;
 166
 167 typedef union
 168 {
 169   char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
 170   int __align;
 171 } pthread_barrierattr_t;
 172 #endif
 173
 174 #endif  /* bits/pthreadtypes.h */