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serge |
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/* Threads compatibility routines for libgcc2 and libobjc. */ |
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/* Compile this one with gcc. */ |
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/* Copyright (C) 1999-2015 Free Software Foundation, Inc. |
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Contributed by Mumit Khan . |
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This file is part of GCC. |
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GCC is free software; you can redistribute it and/or modify it under |
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the terms of the GNU General Public License as published by the Free |
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Software Foundation; either version 3, or (at your option) any later |
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version. |
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
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WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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for more details. |
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Under Section 7 of GPL version 3, you are granted additional |
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permissions described in the GCC Runtime Library Exception, version |
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3.1, as published by the Free Software Foundation. |
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You should have received a copy of the GNU General Public License and |
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a copy of the GCC Runtime Library Exception along with this program; |
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
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. */ |
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#ifndef GCC_GTHR_KOS32_H |
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#define GCC_GTHR_KOS32_H |
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/* Make sure CONST_CAST2 (origin in system.h) is declared. */ |
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#ifndef CONST_CAST2 |
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#define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq) |
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#endif |
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#define __GTHREADS 1 |
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#include |
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#include |
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#ifndef __UNUSED_PARAM |
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#define __UNUSED_PARAM(x) x |
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#endif |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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typedef unsigned long __gthread_key_t; |
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typedef struct |
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{ |
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int done; |
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long started; |
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} __gthread_once_t; |
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typedef struct |
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{ |
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volatile int lock; |
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int handle; |
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} __gthread_mutex_t; |
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typedef struct |
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{ |
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volatile int lock; |
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int handle; |
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long depth; |
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unsigned long owner; |
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} __gthread_recursive_mutex_t; |
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#define __GTHREAD_ONCE_INIT {0, -1} |
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#define __GTHREAD_MUTEX_INIT_FUNCTION __gthread_mutex_init_function |
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#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION \ |
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__gthread_recursive_mutex_init_function |
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#if defined (_WIN32) && !defined(__CYGWIN__) |
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#define MINGW32_SUPPORTS_MT_EH 1 |
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/* Mingw runtime >= v0.3 provides a magic variable that is set to nonzero |
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if -mthreads option was specified, or 0 otherwise. This is to get around |
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the lack of weak symbols in PE-COFF. */ |
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extern int _CRT_MT; |
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extern int __mingwthr_key_dtor (unsigned long, void (*) (void *)); |
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#endif /* _WIN32 && !__CYGWIN__ */ |
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static inline int __gthread_active_p (void) |
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{ |
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#ifdef MINGW32_SUPPORTS_MT_EH |
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return _CRT_MT; |
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#else |
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return 1; |
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#endif |
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} |
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extern int __gthr_kos32_once (__gthread_once_t *, void (*) (void)); |
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extern int __gthr_kos32_key_create (__gthread_key_t *, void (*) (void*)); |
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extern int __gthr_kos32_key_delete (__gthread_key_t); |
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extern void * __gthr_kos32_getspecific (__gthread_key_t); |
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extern int __gthr_kos32_setspecific (__gthread_key_t, const void *); |
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extern void __gthr_kos32_mutex_init_function (__gthread_mutex_t *); |
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extern int __gthr_kos32_mutex_lock (__gthread_mutex_t *); |
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extern int __gthr_kos32_mutex_trylock (__gthread_mutex_t *); |
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extern int __gthr_kos32_mutex_unlock (__gthread_mutex_t *); |
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extern void __gthr_kos32_recursive_mutex_init_function (__gthread_recursive_mutex_t *); |
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extern int __gthr_kos32_recursive_mutex_lock (__gthread_recursive_mutex_t *); |
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extern int __gthr_kos32_recursive_mutex_trylock (__gthread_recursive_mutex_t *); |
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extern int __gthr_kos32_recursive_mutex_unlock (__gthread_recursive_mutex_t *); |
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extern void __gthr_kos32_mutex_destroy (__gthread_mutex_t *); |
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extern int __gthr_kos32_recursive_mutex_destroy (__gthread_recursive_mutex_t *); |
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static inline int __gthread_once (__gthread_once_t *__once, void (*__func) (void)) |
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{ |
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if (__gthread_active_p ()) |
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return __gthr_kos32_once (__once, __func); |
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else |
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return -1; |
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} |
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static inline int __gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *)) |
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{ |
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return __gthr_kos32_key_create (__key, __dtor); |
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} |
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static inline int __gthread_key_delete (__gthread_key_t __key) |
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{ |
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return __gthr_kos32_key_delete (__key); |
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} |
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static inline void* __gthread_getspecific (__gthread_key_t __key) |
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{ |
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return __gthr_kos32_getspecific (__key); |
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} |
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static inline int __gthread_setspecific (__gthread_key_t __key, const void *__ptr) |
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{ |
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return __gthr_kos32_setspecific (__key, __ptr); |
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} |
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static inline void __gthread_mutex_init_function (__gthread_mutex_t *__mutex) |
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{ |
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__gthr_kos32_mutex_init_function(__mutex); |
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} |
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static inline void __gthread_mutex_destroy (__gthread_mutex_t *__mutex) |
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{ |
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__gthr_kos32_mutex_destroy (__mutex); |
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} |
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static inline int __gthread_mutex_lock (__gthread_mutex_t *__mutex) |
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{ |
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if (__gthread_active_p ()) |
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return __gthr_kos32_mutex_lock (__mutex); |
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else |
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return 0; |
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} |
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static inline int __gthread_mutex_trylock (__gthread_mutex_t *__mutex) |
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{ |
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if (__gthread_active_p ()) |
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return __gthr_kos32_mutex_trylock (__mutex); |
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else |
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return 0; |
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} |
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static inline int __gthread_mutex_unlock (__gthread_mutex_t *__mutex) |
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{ |
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if (__gthread_active_p ()) |
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return __gthr_kos32_mutex_unlock (__mutex); |
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else |
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return 0; |
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} |
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static inline void __gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex) |
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{ |
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__gthr_kos32_recursive_mutex_init_function (__mutex); |
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} |
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static inline int __gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex) |
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{ |
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if (__gthread_active_p ()) |
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return __gthr_kos32_recursive_mutex_lock (__mutex); |
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else |
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return 0; |
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} |
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static inline int __gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex) |
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{ |
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if (__gthread_active_p ()) |
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return __gthr_kos32_recursive_mutex_trylock (__mutex); |
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else |
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return 0; |
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} |
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static inline int __gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex) |
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{ |
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if (__gthread_active_p ()) |
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return __gthr_kos32_recursive_mutex_unlock (__mutex); |
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else |
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return 0; |
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} |
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static inline int __gthread_recursive_mutex_destroy (__gthread_recursive_mutex_t *__mutex) |
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{ |
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return __gthr_kos32_recursive_mutex_destroy (__mutex); |
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} |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* ! GCC_GTHR_WIN32_H */ |