libobjc/thr-objc.c

   1 /* GNU Objective C Runtime Thread Interface.
   2    Copyright (C) 1999, 2000, 2001, 2002, 2003, 2005, 2006
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under the
   8 terms of the GNU General Public License as published by the Free Software
   9 Foundation; either version 2, or (at your option) any later version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  13 FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  14 details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  19 Boston, MA 02110-1301, USA.  */
  20
  21 /* As a special exception, if you link this library with files compiled with
  22    GCC to produce an executable, this does not cause the resulting executable
  23    to be covered by the GNU General Public License. This exception does not
  24    however invalidate any other reasons why the executable file might be
  25    covered by the GNU General Public License.  */
  26
  27 #define _LIBOBJC
  28 /* The line below is needed for declarations of functions such as
  29    pthread_mutexattr_settype, without which gthr-posix.h may fail to
  30    compile within libobjc.  Unfortunately, this breaks compilation on
  31    Tru64 UNIX V4.0F, so disable it there.  */
  32 #ifndef __osf__
  33 #define _XOPEN_SOURCE 500
  34 #endif
  35 #include "config.h"
  36 #include "tconfig.h"
  37 #include "coretypes.h"
  38 #include "tm.h"
  39 #include "defaults.h"
  40 #include "objc/thr.h"
  41 #include "objc/runtime.h"
  42 #include <gthr.h>
  43
  44 /* Backend initialization functions */
  45
  46 /* Initialize the threads subsystem. */
  47 int
  48 __objc_init_thread_system(void)
  49 {
  50   return __gthread_objc_init_thread_system ();
  51 }
  52
  53 /* Close the threads subsystem. */
  54 int
  55 __objc_close_thread_system(void)
  56 {
  57   return __gthread_objc_close_thread_system ();
  58 }
  59
  60 /* Backend thread functions */
  61
  62 /* Create a new thread of execution. */
  63 objc_thread_t
  64 __objc_thread_detach(void (*func)(void *), void *arg)
  65 {
  66   return __gthread_objc_thread_detach (func, arg);
  67 }
  68
  69 /* Set the current thread's priority. */
  70 int
  71 __objc_thread_set_priority(int priority)
  72 {
  73   return __gthread_objc_thread_set_priority (priority);
  74 }
  75
  76 /* Return the current thread's priority. */
  77 int
  78 __objc_thread_get_priority(void)
  79 {
  80   return __gthread_objc_thread_get_priority ();
  81 }
  82
  83 /* Yield our process time to another thread. */
  84 void
  85 __objc_thread_yield(void)
  86 {
  87   __gthread_objc_thread_yield ();
  88 }
  89
  90 /* Terminate the current thread. */
  91 int
  92 __objc_thread_exit(void)
  93 {
  94   return __gthread_objc_thread_exit ();
  95 }
  96
  97 /* Returns an integer value which uniquely describes a thread. */
  98 objc_thread_t
  99 __objc_thread_id(void)
 100 {
 101   return __gthread_objc_thread_id ();
 102 }
 103
 104 /* Sets the thread's local storage pointer. */
 105 int
 106 __objc_thread_set_data(void *value)
 107 {
 108   return __gthread_objc_thread_set_data (value);
 109 }
 110
 111 /* Returns the thread's local storage pointer. */
 112 void *
 113 __objc_thread_get_data(void)
 114 {
 115   return __gthread_objc_thread_get_data ();
 116 }
 117
 118 /* Backend mutex functions */
 119
 120 /* Allocate a mutex. */
 121 int
 122 __objc_mutex_allocate(objc_mutex_t mutex)
 123 {
 124   return __gthread_objc_mutex_allocate (mutex);
 125 }
 126
 127 /* Deallocate a mutex. */
 128 int
 129 __objc_mutex_deallocate(objc_mutex_t mutex)
 130 {
 131   return __gthread_objc_mutex_deallocate (mutex);
 132 }
 133
 134 /* Grab a lock on a mutex. */
 135 int
 136 __objc_mutex_lock(objc_mutex_t mutex)
 137 {
 138   return __gthread_objc_mutex_lock (mutex);
 139 }
 140
 141 /* Try to grab a lock on a mutex. */
 142 int
 143 __objc_mutex_trylock(objc_mutex_t mutex)
 144 {
 145   return __gthread_objc_mutex_trylock (mutex);
 146 }
 147
 148 /* Unlock the mutex */
 149 int
 150 __objc_mutex_unlock(objc_mutex_t mutex)
 151 {
 152   return __gthread_objc_mutex_unlock (mutex);
 153 }
 154
 155 /* Backend condition mutex functions */
 156
 157 /* Allocate a condition. */
 158 int
 159 __objc_condition_allocate(objc_condition_t condition)
 160 {
 161   return __gthread_objc_condition_allocate (condition);
 162 }
 163
 164 /* Deallocate a condition. */
 165 int
 166 __objc_condition_deallocate(objc_condition_t condition)
 167 {
 168   return __gthread_objc_condition_deallocate (condition);
 169 }
 170
 171 /* Wait on the condition */
 172 int
 173 __objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex)
 174 {
 175   return __gthread_objc_condition_wait (condition, mutex);
 176 }
 177
 178 /* Wake up all threads waiting on this condition. */
 179 int
 180 __objc_condition_broadcast(objc_condition_t condition)
 181 {
 182   return __gthread_objc_condition_broadcast (condition);
 183 }
 184
 185 /* Wake up one thread waiting on this condition. */
 186 int
 187 __objc_condition_signal(objc_condition_t condition)
 188 {
 189   return __gthread_objc_condition_signal (condition);
 190 }
 191
 192 /* End of File */