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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [gthr-mipssde.h] - Rev 298
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/* MIPS SDE threads compatibility routines for libgcc2 and libobjc. */ /* Compile this one with gcc. */ /* Copyright (C) 2006, 2007, 2008, 2009 Free Software Foundation, Inc. Contributed by Nigel Stephens <nigel@mips.com> This file is part of GCC. GCC 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 3, or (at your option) any later version. GCC 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. Under Section 7 of GPL version 3, you are granted additional permissions described in the GCC Runtime Library Exception, version 3.1, as published by the Free Software Foundation. You should have received a copy of the GNU General Public License and a copy of the GCC Runtime Library Exception along with this program; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see <http://www.gnu.org/licenses/>. */ #ifndef GCC_GTHR_MIPSSDE_H #define GCC_GTHR_MIPSSDE_H /* MIPS SDE threading API specific definitions. Easy, since the interface is pretty much one-to-one. */ #define __GTHREADS 1 #include <sdethread.h> #include <unistd.h> #ifdef __cplusplus extern "C" { #endif typedef __sdethread_key_t __gthread_key_t; typedef __sdethread_once_t __gthread_once_t; typedef __sdethread_mutex_t __gthread_mutex_t; typedef struct { long depth; __sdethread_t owner; __sdethread_mutex_t actual; } __gthread_recursive_mutex_t; #define __GTHREAD_MUTEX_INIT __SDETHREAD_MUTEX_INITIALIZER("gthr") #define __GTHREAD_ONCE_INIT __SDETHREAD_ONCE_INIT static inline int __gthread_recursive_mutex_init_function(__gthread_recursive_mutex_t *__mutex); #define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function #if SUPPORTS_WEAK && GTHREAD_USE_WEAK # define __gthrw(name) \ static __typeof(name) __gthrw_ ## name __attribute__ ((__weakref__(#name))); # define __gthrw_(name) __gthrw_ ## name #else # define __gthrw(name) # define __gthrw_(name) name #endif __gthrw(__sdethread_once) __gthrw(__sdethread_key_create) __gthrw(__sdethread_key_delete) __gthrw(__sdethread_getspecific) __gthrw(__sdethread_setspecific) __gthrw(__sdethread_self) __gthrw(__sdethread_mutex_lock) __gthrw(__sdethread_mutex_trylock) __gthrw(__sdethread_mutex_unlock) __gthrw(__sdethread_mutex_init) __gthrw(__sdethread_threading) #if SUPPORTS_WEAK && GTHREAD_USE_WEAK static inline int __gthread_active_p (void) { return !!(void *)&__sdethread_threading; } #else /* not SUPPORTS_WEAK */ static inline int __gthread_active_p (void) { return 1; } #endif /* SUPPORTS_WEAK */ static inline int __gthread_once (__gthread_once_t *__once, void (*__func) (void)) { if (__gthread_active_p ()) return __gthrw_(__sdethread_once) (__once, __func); else return -1; } static inline int __gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *)) { return __gthrw_(__sdethread_key_create) (__key, __dtor); } static inline int __gthread_key_delete (__gthread_key_t __key) { return __gthrw_(__sdethread_key_delete) (__key); } static inline void * __gthread_getspecific (__gthread_key_t __key) { return __gthrw_(__sdethread_getspecific) (__key); } static inline int __gthread_setspecific (__gthread_key_t __key, const void *__ptr) { return __gthrw_(__sdethread_setspecific) (__key, __ptr); } static inline int __gthread_mutex_destroy (__gthread_mutex_t * UNUSED(__mutex)) { return 0; } static inline int __gthread_mutex_lock (__gthread_mutex_t *__mutex) { if (__gthread_active_p ()) return __gthrw_(__sdethread_mutex_lock) (__mutex); else return 0; } static inline int __gthread_mutex_trylock (__gthread_mutex_t *__mutex) { if (__gthread_active_p ()) return __gthrw_(__sdethread_mutex_trylock) (__mutex); else return 0; } static inline int __gthread_mutex_unlock (__gthread_mutex_t *__mutex) { if (__gthread_active_p ()) return __gthrw_(__sdethread_mutex_unlock) (__mutex); else return 0; } static inline int __gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex) { __mutex->depth = 0; __mutex->owner = __gthrw_(__sdethread_self) (); return __gthrw_(__sdethread_mutex_init) (&__mutex->actual, NULL); } static inline int __gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex) { if (__gthread_active_p ()) { __sdethread_t __me = __gthrw_(__sdethread_self) (); if (__mutex->owner != __me) { __gthrw_(__sdethread_mutex_lock) (&__mutex->actual); __mutex->owner = __me; } __mutex->depth++; } return 0; } static inline int __gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex) { if (__gthread_active_p ()) { __sdethread_t __me = __gthrw_(__sdethread_self) (); if (__mutex->owner != __me) { if (__gthrw_(__sdethread_mutex_trylock) (&__mutex->actual)) return 1; __mutex->owner = __me; } __mutex->depth++; } return 0; } static inline int __gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex) { if (__gthread_active_p ()) { if (--__mutex->depth == 0) { __mutex->owner = (__sdethread_t) 0; __gthrw_(__sdethread_mutex_unlock) (&__mutex->actual); } } return 0; } #ifdef __cplusplus } #endif #endif /* ! GCC_GTHR_MIPSSDE_H */
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