| /* MIPS SDE threads compatibility routines for libgcc2 and libobjc. */ |
| /* Compile this one with gcc. */ |
| /* Copyright (C) 2006, 2007 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 2, 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. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; 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 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_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 */ |