gcc/gthr-single.h

   1 /* Threads compatibily routines for libgcc2.  */
   2 /* Compile this one with gcc.  */
   3 /* Copyright (C) 1997 Free Software Foundation, Inc.
   4
   5 This file is part of GNU CC.
   6
   7 GNU CC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GNU CC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU CC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 /* As a special exception, if you link this library with other files,
  23    some of which are compiled with GCC, to produce an executable,
  24    this library does not by itself cause the resulting executable
  25    to be covered by the GNU General Public License.
  26    This exception does not however invalidate any other reasons why
  27    the executable file might be covered by the GNU General Public License.  */
  28
  29 #ifndef __gthr_single_h
  30 #define __gthr_single_h
  31
  32 /* Just provide compatibility for mutex handling. */
  33
  34 typedef int __gthread_mutex_t;
  35
  36 #define __GTHREAD_MUTEX_INIT 0
  37
  38 static inline int
  39 __gthread_active_p ()
  40 {
  41   return 0;
  42 }
  43
  44 static inline int
  45 __gthread_mutex_lock (__gthread_mutex_t *mutex __attribute__ ((__unused__)))
  46 {
  47   return 0;
  48 }
  49
  50 static inline int
  51 __gthread_mutex_trylock (__gthread_mutex_t *mutex __attribute__ ((__unused__)))
  52 {
  53   return 0;
  54 }
  55
  56 static inline int
  57 __gthread_mutex_unlock (__gthread_mutex_t *mutex __attribute__ ((__unused__)))
  58 {
  59   return 0;
  60 }
  61
  62 #endif /* not __gthr_single_h */