--- /dev/null
+/* Threads compatibility routines for libgcc2. */
+/* Compile this one with gcc. */
+/* Copyright (C) 1997, 1998, 2004, 2008, 2009, 2011
+ Free Software Foundation, Inc.
+
+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 _GLIBCXX_GCC_GTHR_H
+#define _GLIBCXX_GCC_GTHR_H
+
+#ifndef _GLIBCXX_HIDE_EXPORTS
+#pragma GCC visibility push(default)
+#endif
+
+/* If this file is compiled with threads support, it must
+ #define __GTHREADS 1
+ to indicate that threads support is present. Also it has define
+ function
+ int __gthread_active_p ()
+ that returns 1 if thread system is active, 0 if not.
+
+ The threads interface must define the following types:
+ __gthread_key_t
+ __gthread_once_t
+ __gthread_mutex_t
+ __gthread_recursive_mutex_t
+
+ The threads interface must define the following macros:
+
+ __GTHREAD_ONCE_INIT
+ to initialize __gthread_once_t
+ __GTHREAD_MUTEX_INIT
+ to initialize __gthread_mutex_t to get a fast
+ non-recursive mutex.
+ __GTHREAD_MUTEX_INIT_FUNCTION
+ some systems can't initialize a mutex without a
+ function call. On such systems, define this to a
+ function which looks like this:
+ void __GTHREAD_MUTEX_INIT_FUNCTION (__gthread_mutex_t *)
+ Don't define __GTHREAD_MUTEX_INIT in this case
+ __GTHREAD_RECURSIVE_MUTEX_INIT
+ __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION
+ as above, but for a recursive mutex.
+
+ The threads interface must define the following static functions:
+
+ int __gthread_once (__gthread_once_t *once, void (*func) ())
+
+ int __gthread_key_create (__gthread_key_t *keyp, void (*dtor) (void *))
+ int __gthread_key_delete (__gthread_key_t key)
+
+ void *__gthread_getspecific (__gthread_key_t key)
+ int __gthread_setspecific (__gthread_key_t key, const void *ptr)
+
+ int __gthread_mutex_destroy (__gthread_mutex_t *mutex);
+
+ int __gthread_mutex_lock (__gthread_mutex_t *mutex);
+ int __gthread_mutex_trylock (__gthread_mutex_t *mutex);
+ int __gthread_mutex_unlock (__gthread_mutex_t *mutex);
+
+ int __gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *mutex);
+ int __gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *mutex);
+ int __gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *mutex);
+
+ The following are supported in POSIX threads only. They are required to
+ fix a deadlock in static initialization inside libsupc++. The header file
+ gthr-posix.h defines a symbol __GTHREAD_HAS_COND to signify that these extra
+ features are supported.
+
+ Types:
+ __gthread_cond_t
+
+ Macros:
+ __GTHREAD_COND_INIT
+ __GTHREAD_COND_INIT_FUNCTION
+
+ Interface:
+ int __gthread_cond_broadcast (__gthread_cond_t *cond);
+ int __gthread_cond_wait (__gthread_cond_t *cond, __gthread_mutex_t *mutex);
+ int __gthread_cond_wait_recursive (__gthread_cond_t *cond,
+ __gthread_recursive_mutex_t *mutex);
+
+ All functions returning int should return zero on success or the error
+ number. If the operation is not supported, -1 is returned.
+
+ If the following are also defined, you should
+ #define __GTHREADS_CXX0X 1
+ to enable the c++0x thread library.
+
+ Types:
+ __gthread_t
+ __gthread_time_t
+
+ Interface:
+ int __gthread_create (__gthread_t *thread, void *(*func) (void*),
+ void *args);
+ int __gthread_join (__gthread_t thread, void **value_ptr);
+ int __gthread_detach (__gthread_t thread);
+ int __gthread_equal (__gthread_t t1, __gthread_t t2);
+ __gthread_t __gthread_self (void);
+ int __gthread_yield (void);
+
+ int __gthread_mutex_timedlock (__gthread_mutex_t *m,
+ const __gthread_time_t *abs_timeout);
+ int __gthread_recursive_mutex_timedlock (__gthread_recursive_mutex_t *m,
+ const __gthread_time_t *abs_time);
+
+ int __gthread_cond_signal (__gthread_cond_t *cond);
+ int __gthread_cond_timedwait (__gthread_cond_t *cond,
+ __gthread_mutex_t *mutex,
+ const __gthread_time_t *abs_timeout);
+ int __gthread_cond_timedwait_recursive (__gthread_cond_t *cond,
+ __gthread_recursive_mutex_t *mutex,
+ const __gthread_time_t *abs_time)
+
+*/
+
+#if __GXX_WEAK__
+/* The pe-coff weak support isn't fully compatible to ELF's weak.
+ For static libraries it might would work, but as we need to deal
+ with shared versions too, we disable it for mingw-targets. */
+#ifdef _GLIBCXX___MINGW32_GLIBCXX___
+#undef _GLIBCXX_GTHREAD_USE_WEAK
+#define _GLIBCXX_GTHREAD_USE_WEAK 0
+#endif
+
+#ifndef _GLIBCXX_GTHREAD_USE_WEAK
+#define _GLIBCXX_GTHREAD_USE_WEAK 1
+#endif
+#endif
+#include <bits/gthr-default.h>
+
+#ifndef _GLIBCXX_HIDE_EXPORTS
+#pragma GCC visibility pop
+#endif
+
+#endif /* ! _GLIBCXX_GCC_GTHR_H */
projects / cross.git / blobdiff