libobjc/thr-objc.c

   1 /* GNU Objective C Runtime Thread Interface.
   2    Copyright (C) 1999 Free Software Foundation, Inc.
   3
   4 This file is part of GNU CC.
   5
   6 GNU CC is free software; you can redistribute it and/or modify it under the
   7 terms of the GNU General Public License as published by the Free Software
   8 Foundation; either version 2, or (at your option) any later version.
   9
  10 GNU CC is distributed in the hope that it will be useful, but WITHOUT ANY
  11 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  12 FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  13 details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with GNU CC; see the file COPYING.  If not, write to
  17 the Free Software Foundation, 59 Temple Place - Suite 330,
  18 Boston, MA 02111-1307, USA.  */
  19
  20 /* As a special exception, if you link this library with files compiled with
  21    GCC to produce an executable, this does not cause the resulting executable
  22    to be covered by the GNU General Public License. This exception does not
  23    however invalidate any other reasons why the executable file might be
  24    covered by the GNU General Public License.  */
  25
  26 #define _LIBOBJC
  27 #include "tconfig.h"
  28 #include "coretypes.h"
  29 #include "tm.h"
  30 #include "defaults.h"
  31 #include <objc/thr.h>
  32 #include "runtime.h"
  33 #include <gthr.h>
  34
  35 /* Backend initialization functions */
  36
  37 /* Initialize the threads subsystem. */
  38 int
  39 __objc_init_thread_system(void)
  40 {
  41   return __gthread_objc_init_thread_system ();
  42 }
  43
  44 /* Close the threads subsystem. */
  45 int
  46 __objc_close_thread_system(void)
  47 {
  48   return __gthread_objc_close_thread_system ();
  49 }
  50
  51 /* Backend thread functions */
  52
  53 /* Create a new thread of execution. */
  54 objc_thread_t
  55 __objc_thread_detach(void (*func)(void *), void *arg)
  56 {
  57   return __gthread_objc_thread_detach (func, arg);
  58 }
  59
  60 /* Set the current thread's priority. */
  61 int
  62 __objc_thread_set_priority(int priority)
  63 {
  64   return __gthread_objc_thread_set_priority (priority);
  65 }
  66
  67 /* Return the current thread's priority. */
  68 int
  69 __objc_thread_get_priority(void)
  70 {
  71   return __gthread_objc_thread_get_priority ();
  72 }
  73
  74 /* Yield our process time to another thread. */
  75 void
  76 __objc_thread_yield(void)
  77 {
  78   __gthread_objc_thread_yield ();
  79 }
  80
  81 /* Terminate the current thread. */
  82 int
  83 __objc_thread_exit(void)
  84 {
  85   return __gthread_objc_thread_exit ();
  86 }
  87
  88 /* Returns an integer value which uniquely describes a thread. */
  89 objc_thread_t
  90 __objc_thread_id(void)
  91 {
  92   return __gthread_objc_thread_id ();
  93 }
  94
  95 /* Sets the thread's local storage pointer. */
  96 int
  97 __objc_thread_set_data(void *value)
  98 {
  99   return __gthread_objc_thread_set_data (value);
 100 }
 101
 102 /* Returns the thread's local storage pointer. */
 103 void *
 104 __objc_thread_get_data(void)
 105 {
 106   return __gthread_objc_thread_get_data ();
 107 }
 108
 109 /* Backend mutex functions */
 110
 111 /* Allocate a mutex. */
 112 int
 113 __objc_mutex_allocate(objc_mutex_t mutex)
 114 {
 115   return __gthread_objc_mutex_allocate (mutex);
 116 }
 117
 118 /* Deallocate a mutex. */
 119 int
 120 __objc_mutex_deallocate(objc_mutex_t mutex)
 121 {
 122   return __gthread_objc_mutex_deallocate (mutex);
 123 }
 124
 125 /* Grab a lock on a mutex. */
 126 int
 127 __objc_mutex_lock(objc_mutex_t mutex)
 128 {
 129   return __gthread_objc_mutex_lock (mutex);
 130 }
 131
 132 /* Try to grab a lock on a mutex. */
 133 int
 134 __objc_mutex_trylock(objc_mutex_t mutex)
 135 {
 136   return __gthread_objc_mutex_trylock (mutex);
 137 }
 138
 139 /* Unlock the mutex */
 140 int
 141 __objc_mutex_unlock(objc_mutex_t mutex)
 142 {
 143   return __gthread_objc_mutex_unlock (mutex);
 144 }
 145
 146 /* Backend condition mutex functions */
 147
 148 /* Allocate a condition. */
 149 int
 150 __objc_condition_allocate(objc_condition_t condition)
 151 {
 152   return __gthread_objc_condition_allocate (condition);
 153 }
 154
 155 /* Deallocate a condition. */
 156 int
 157 __objc_condition_deallocate(objc_condition_t condition)
 158 {
 159   return __gthread_objc_condition_deallocate (condition);
 160 }
 161
 162 /* Wait on the condition */
 163 int
 164 __objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex)
 165 {
 166   return __gthread_objc_condition_wait (condition, mutex);
 167 }
 168
 169 /* Wake up all threads waiting on this condition. */
 170 int
 171 __objc_condition_broadcast(objc_condition_t condition)
 172 {
 173   return __gthread_objc_condition_broadcast (condition);
 174 }
 175
 176 /* Wake up one thread waiting on this condition. */
 177 int
 178 __objc_condition_signal(objc_condition_t condition)
 179 {
 180   return __gthread_objc_condition_signal (condition);
 181 }
 182
 183 /* End of File */