| /* Threads compatibily routines for libgcc2. */ |
| /* Compile this one with gcc. */ |
| /* Copyright (C) 1997 Free Software Foundation, Inc. |
| |
| This file is part of GNU CC. |
| |
| GNU CC is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU CC is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU CC; see the file COPYING. If not, write to |
| the Free Software Foundation, 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| /* As a special exception, if you link this library with other files, |
| some of which are compiled with GCC, to produce an executable, |
| this library does not by itself cause the resulting executable |
| to be covered by the GNU General Public License. |
| This exception does not however invalidate any other reasons why |
| the executable file might be covered by the GNU General Public License. */ |
| |
| #ifndef __gthr_posix_h |
| #define __gthr_posix_h |
| |
| /* POSIX threads specific definitions. |
| Easy, since the interface is just one-to-one mapping. */ |
| |
| #define __GTHREADS 1 |
| |
| #include <pthread.h> |
| |
| typedef pthread_key_t __gthread_key_t; |
| typedef pthread_once_t __gthread_once_t; |
| typedef pthread_mutex_t __gthread_mutex_t; |
| |
| #define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
| #define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT |
| |
| #if SUPPORTS_WEAK && GTHREAD_USE_WEAK |
| |
| #pragma weak pthread_once |
| #pragma weak pthread_key_create |
| #pragma weak pthread_key_delete |
| #pragma weak pthread_getspecific |
| #pragma weak pthread_setspecific |
| #pragma weak pthread_create |
| |
| #pragma weak pthread_mutex_lock |
| #pragma weak pthread_mutex_trylock |
| #pragma weak pthread_mutex_unlock |
| |
| static void *__gthread_active_ptr = &pthread_create; |
| |
| static inline int |
| __gthread_active_p () |
| { |
| return __gthread_active_ptr != 0; |
| } |
| |
| #else /* not SUPPORTS_WEAK */ |
| |
| static inline int |
| __gthread_active_p () |
| { |
| return 1; |
| } |
| |
| #endif /* SUPPORTS_WEAK */ |
| |
| static inline int |
| __gthread_once (__gthread_once_t *once, void (*func) ()) |
| { |
| if (__gthread_active_p ()) |
| return pthread_once (once, func); |
| else |
| return -1; |
| } |
| |
| static inline int |
| __gthread_key_create (__gthread_key_t *key, void (*dtor) (void *)) |
| { |
| return pthread_key_create (key, dtor); |
| } |
| |
| static inline int |
| __gthread_key_dtor (__gthread_key_t key, void *ptr) |
| { |
| /* Just reset the key value to zero. */ |
| if (ptr) |
| return pthread_setspecific (key, 0); |
| else |
| return 0; |
| } |
| |
| static inline int |
| __gthread_key_delete (__gthread_key_t key) |
| { |
| return pthread_key_delete (key); |
| } |
| |
| static inline void * |
| __gthread_getspecific (__gthread_key_t key) |
| { |
| return pthread_getspecific (key); |
| } |
| |
| static inline int |
| __gthread_setspecific (__gthread_key_t key, const void *ptr) |
| { |
| return pthread_setspecific (key, ptr); |
| } |
| |
| static inline int |
| __gthread_mutex_lock (__gthread_mutex_t *mutex) |
| { |
| if (__gthread_active_p ()) |
| return pthread_mutex_lock (mutex); |
| else |
| return 0; |
| } |
| |
| static inline int |
| __gthread_mutex_trylock (__gthread_mutex_t *mutex) |
| { |
| if (__gthread_active_p ()) |
| return pthread_mutex_trylock (mutex); |
| else |
| return 0; |
| } |
| |
| static inline int |
| __gthread_mutex_unlock (__gthread_mutex_t *mutex) |
| { |
| if (__gthread_active_p ()) |
| return pthread_mutex_unlock (mutex); |
| else |
| return 0; |
| } |
| |
| #endif /* not __gthr_posix_h */ |