gnu/lib/libstdc++-v3_4/arch/vax/gthr-single.h

   1 /* This file is automatically generated.  DO NOT EDIT! */
   2 /* Generated from:      NetBSD: mknative-gcc,v 1.22 2006/06/25 03:06:15 mrg Exp  */
   3 /* Generated from: NetBSD: mknative.common,v 1.8 2006/05/26 19:17:21 mrg Exp  */
   4
   5 /* Threads compatibility routines for libgcc2 and libobjc.  */
   6 /* Compile this one with gcc.  */
   7 /* Copyright (C) 1997, 1999, 2000, 2004 Free Software Foundation, Inc.
   8
   9 This file is part of GCC.
  10
  11 GCC is free software; you can redistribute it and/or modify it under
  12 the terms of the GNU General Public License as published by the Free
  13 Software Foundation; either version 2, or (at your option) any later
  14 version.
  15
  16 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  17 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  19 for more details.
  20
  21 You should have received a copy of the GNU General Public License
  22 along with GCC; see the file COPYING.  If not, write to the Free
  23 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
  24 02110-1301, USA.  */
  25
  26 /* As a special exception, if you link this library with other files,
  27    some of which are compiled with GCC, to produce an executable,
  28    this library does not by itself cause the resulting executable
  29    to be covered by the GNU General Public License.
  30    This exception does not however invalidate any other reasons why
  31    the executable file might be covered by the GNU General Public License.  */
  32
  33 #ifndef _GLIBCXX_GCC_GTHR_SINGLE_H
  34 #define _GLIBCXX_GCC_GTHR_SINGLE_H
  35
  36 /* Just provide compatibility for mutex handling.  */
  37
  38 typedef int __gthread_mutex_t;
  39 typedef int __gthread_recursive_mutex_t;
  40
  41 #define __GTHREAD_MUTEX_INIT 0
  42
  43 #ifdef __cplusplus
  44 #define _GLIBCXX_UNUSED(x)
  45 #else
  46 #define _GLIBCXX_UNUSED(x) x __attribute__((unused))
  47 #endif
  48
  49 #ifdef _LIBOBJC
  50
  51 /* Thread local storage for a single thread */
  52 static void *thread_local_storage = NULL;
  53
  54 /* Backend initialization functions */
  55
  56 /* Initialize the threads subsystem.  */
  57 static inline int
  58 __gthread_objc_init_thread_system (void)
  59 {
  60   /* No thread support available */
  61   return -1;
  62 }
  63
  64 /* Close the threads subsystem.  */
  65 static inline int
  66 __gthread_objc_close_thread_system (void)
  67 {
  68   /* No thread support available */
  69   return -1;
  70 }
  71
  72 /* Backend thread functions */
  73
  74 /* Create a new thread of execution.  */
  75 static inline objc_thread_t
  76 __gthread_objc_thread_detach (void (* func)(void *), void * _GLIBCXX_UNUSED(arg))
  77 {
  78   /* No thread support available */
  79   return NULL;
  80 }
  81
  82 /* Set the current thread's priority.  */
  83 static inline int
  84 __gthread_objc_thread_set_priority (int _GLIBCXX_UNUSED(priority))
  85 {
  86   /* No thread support available */
  87   return -1;
  88 }
  89
  90 /* Return the current thread's priority.  */
  91 static inline int
  92 __gthread_objc_thread_get_priority (void)
  93 {
  94   return OBJC_THREAD_INTERACTIVE_PRIORITY;
  95 }
  96
  97 /* Yield our process time to another thread.  */
  98 static inline void
  99 __gthread_objc_thread_yield (void)
 100 {
 101   return;
 102 }
 103
 104 /* Terminate the current thread.  */
 105 static inline int
 106 __gthread_objc_thread_exit (void)
 107 {
 108   /* No thread support available */
 109   /* Should we really exit the program */
 110   /* exit (&__objc_thread_exit_status); */
 111   return -1;
 112 }
 113
 114 /* Returns an integer value which uniquely describes a thread.  */
 115 static inline objc_thread_t
 116 __gthread_objc_thread_id (void)
 117 {
 118   /* No thread support, use 1.  */
 119   return (objc_thread_t) 1;
 120 }
 121
 122 /* Sets the thread's local storage pointer.  */
 123 static inline int
 124 __gthread_objc_thread_set_data (void *value)
 125 {
 126   thread_local_storage = value;
 127   return 0;
 128 }
 129
 130 /* Returns the thread's local storage pointer.  */
 131 static inline void *
 132 __gthread_objc_thread_get_data (void)
 133 {
 134   return thread_local_storage;
 135 }
 136
 137 /* Backend mutex functions */
 138
 139 /* Allocate a mutex.  */
 140 static inline int
 141 __gthread_objc_mutex_allocate (objc_mutex_t _GLIBCXX_UNUSED(mutex))
 142 {
 143   return 0;
 144 }
 145
 146 /* Deallocate a mutex.  */
 147 static inline int
 148 __gthread_objc_mutex_deallocate (objc_mutex_t _GLIBCXX_UNUSED(mutex))
 149 {
 150   return 0;
 151 }
 152
 153 /* Grab a lock on a mutex.  */
 154 static inline int
 155 __gthread_objc_mutex_lock (objc_mutex_t _GLIBCXX_UNUSED(mutex))
 156 {
 157   /* There can only be one thread, so we always get the lock */
 158   return 0;
 159 }
 160
 161 /* Try to grab a lock on a mutex.  */
 162 static inline int
 163 __gthread_objc_mutex_trylock (objc_mutex_t _GLIBCXX_UNUSED(mutex))
 164 {
 165   /* There can only be one thread, so we always get the lock */
 166   return 0;
 167 }
 168
 169 /* Unlock the mutex */
 170 static inline int
 171 __gthread_objc_mutex_unlock (objc_mutex_t _GLIBCXX_UNUSED(mutex))
 172 {
 173   return 0;
 174 }
 175
 176 /* Backend condition mutex functions */
 177
 178 /* Allocate a condition.  */
 179 static inline int
 180 __gthread_objc_condition_allocate (objc_condition_t _GLIBCXX_UNUSED(condition))
 181 {
 182   return 0;
 183 }
 184
 185 /* Deallocate a condition.  */
 186 static inline int
 187 __gthread_objc_condition_deallocate (objc_condition_t _GLIBCXX_UNUSED(condition))
 188 {
 189   return 0;
 190 }
 191
 192 /* Wait on the condition */
 193 static inline int
 194 __gthread_objc_condition_wait (objc_condition_t _GLIBCXX_UNUSED(condition),
 195                                objc_mutex_t _GLIBCXX_UNUSED(mutex))
 196 {
 197   return 0;
 198 }
 199
 200 /* Wake up all threads waiting on this condition.  */
 201 static inline int
 202 __gthread_objc_condition_broadcast (objc_condition_t _GLIBCXX_UNUSED(condition))
 203 {
 204   return 0;
 205 }
 206
 207 /* Wake up one thread waiting on this condition.  */
 208 static inline int
 209 __gthread_objc_condition_signal (objc_condition_t _GLIBCXX_UNUSED(condition))
 210 {
 211   return 0;
 212 }
 213
 214 #else /* _LIBOBJC */
 215
 216 static inline int
 217 __gthread_active_p (void)
 218 {
 219   return 0;
 220 }
 221
 222 static inline int
 223 __gthread_mutex_lock (__gthread_mutex_t * _GLIBCXX_UNUSED(mutex))
 224 {
 225   return 0;
 226 }
 227
 228 static inline int
 229 __gthread_mutex_trylock (__gthread_mutex_t * _GLIBCXX_UNUSED(mutex))
 230 {
 231   return 0;
 232 }
 233
 234 static inline int
 235 __gthread_mutex_unlock (__gthread_mutex_t * _GLIBCXX_UNUSED(mutex))
 236 {
 237   return 0;
 238 }
 239
 240 static inline int
 241 __gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *mutex)
 242 {
 243   return __gthread_mutex_lock (mutex);
 244 }
 245
 246 static inline int
 247 __gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *mutex)
 248 {
 249   return __gthread_mutex_trylock (mutex);
 250 }
 251
 252 static inline int
 253 __gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *mutex)
 254 {
 255   return __gthread_mutex_unlock (mutex);
 256 }
 257
 258 #endif /* _LIBOBJC */
 259
 260 #undef _GLIBCXX_UNUSED
 261
 262 #endif /* ! _GLIBCXX_GCC_GTHR_SINGLE_H */