/* Threads compatibility routines for libgcc2 and libobjc. */
/* Compile this one with gcc. */
-/* Copyright (C) 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
- Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+ 2008, 2009 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 2, or (at your option) any later
+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
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, 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA. */
+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.
-/* 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. */
+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_POSIX_H
#define GCC_GTHR_POSIX_H
Easy, since the interface is just one-to-one mapping. */
#define __GTHREADS 1
+#define __GTHREADS_CXX0X 1
/* Some implementations of <pthread.h> require this to be defined. */
#if !defined(_REENTRANT) && defined(__osf__)
#include <pthread.h>
#include <unistd.h>
+typedef pthread_t __gthread_t;
typedef pthread_key_t __gthread_key_t;
typedef pthread_once_t __gthread_once_t;
typedef pthread_mutex_t __gthread_mutex_t;
typedef pthread_mutex_t __gthread_recursive_mutex_t;
typedef pthread_cond_t __gthread_cond_t;
+typedef struct timespec __gthread_time_t;
/* POSIX like conditional variables are supported. Please look at comments
in gthr.h for details. */
-#define __GTHREAD_HAS_COND 1
+#define __GTHREAD_HAS_COND 1
#define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
#define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT
#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
#endif
#define __GTHREAD_COND_INIT PTHREAD_COND_INITIALIZER
+#define __GTHREAD_TIME_INIT {0,0}
#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
# ifndef __gthrw_pragma
__gthrw3(pthread_once)
__gthrw3(pthread_getspecific)
__gthrw3(pthread_setspecific)
+
__gthrw3(pthread_create)
+__gthrw3(pthread_join)
+__gthrw3(pthread_detach)
+__gthrw3(pthread_equal)
+__gthrw3(pthread_self)
__gthrw3(pthread_cancel)
+__gthrw3(sched_yield)
+
__gthrw3(pthread_mutex_lock)
__gthrw3(pthread_mutex_trylock)
+#ifdef _POSIX_TIMEOUTS
+#if _POSIX_TIMEOUTS >= 0
+__gthrw3(pthread_mutex_timedlock)
+#endif
+#endif /* _POSIX_TIMEOUTS */
__gthrw3(pthread_mutex_unlock)
__gthrw3(pthread_mutex_init)
__gthrw3(pthread_mutex_destroy)
+
__gthrw3(pthread_cond_broadcast)
+__gthrw3(pthread_cond_signal)
__gthrw3(pthread_cond_wait)
+__gthrw3(pthread_cond_timedwait)
+__gthrw3(pthread_cond_destroy)
#else
__gthrw(pthread_once)
__gthrw(pthread_getspecific)
__gthrw(pthread_setspecific)
+
__gthrw(pthread_create)
+__gthrw(pthread_join)
+__gthrw(pthread_equal)
+__gthrw(pthread_self)
+__gthrw(pthread_detach)
__gthrw(pthread_cancel)
+__gthrw(sched_yield)
+
__gthrw(pthread_mutex_lock)
__gthrw(pthread_mutex_trylock)
+#ifdef _POSIX_TIMEOUTS
+#if _POSIX_TIMEOUTS >= 0
+__gthrw(pthread_mutex_timedlock)
+#endif
+#endif /* _POSIX_TIMEOUTS */
__gthrw(pthread_mutex_unlock)
__gthrw(pthread_mutex_init)
__gthrw(pthread_mutex_destroy)
+
__gthrw(pthread_cond_broadcast)
+__gthrw(pthread_cond_signal)
__gthrw(pthread_cond_wait)
+__gthrw(pthread_cond_timedwait)
+__gthrw(pthread_cond_destroy)
#endif
__gthrw(pthread_key_create)
#if defined(_LIBOBJC) || defined(_LIBOBJC_WEAK)
/* Objective-C. */
#if defined(__osf__) && defined(_PTHREAD_USE_MANGLED_NAMES_)
-__gthrw3(pthread_cond_destroy)
__gthrw3(pthread_cond_init)
-__gthrw3(pthread_cond_signal)
__gthrw3(pthread_exit)
-__gthrw3(pthread_mutex_destroy)
-__gthrw3(pthread_self)
#else
-__gthrw(pthread_cond_destroy)
__gthrw(pthread_cond_init)
-__gthrw(pthread_cond_signal)
__gthrw(pthread_exit)
-__gthrw(pthread_mutex_destroy)
-__gthrw(pthread_self)
#endif /* __osf__ && _PTHREAD_USE_MANGLED_NAMES_ */
#ifdef _POSIX_PRIORITY_SCHEDULING
#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
__gthrw(sched_get_priority_min)
#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
#endif /* _POSIX_PRIORITY_SCHEDULING */
-__gthrw(sched_yield)
__gthrw(pthread_attr_destroy)
__gthrw(pthread_attr_init)
__gthrw(pthread_attr_setdetachstate)
it is passed so we cannot pretend that the interface is active if -pthreads
is not specified. On Solaris 2.5.1, the interface is not exposed at all so
we need to play the usual game with weak symbols. On Solaris 10 and up, a
- working interface is always exposed. */
+ working interface is always exposed. On FreeBSD 6 and later, libc also
+ exposes a dummy POSIX threads interface, similar to what Solaris 2.6 up
+ to 9 does. FreeBSD >= 700014 even provides a pthread_cancel stub in libc,
+ which means the alternate __gthread_active_p below cannot be used there. */
-#if defined(__sun) && defined(__svr4__)
+#if defined(__FreeBSD__) || (defined(__sun) && defined(__svr4__))
static volatile int __gthread_active = -1;
return __gthread_active_latest_value != 0;
}
-#else /* not Solaris */
+#else /* neither FreeBSD nor Solaris */
static inline int
__gthread_active_p (void)
{
- static void *const __gthread_active_ptr
+ static void *const __gthread_active_ptr
= __extension__ (void *) &__gthrw_(pthread_cancel);
return __gthread_active_ptr != 0;
}
-#endif /* Solaris */
+#endif /* FreeBSD or Solaris */
#else /* not SUPPORTS_WEAK */
static volatile int __gthread_active = -1;
static void *
-__gthread_start (void *arg __attribute__((unused)))
+__gthread_start (void *__arg __attribute__((unused)))
{
return NULL;
}
__gthread_active_init (void)
{
static pthread_mutex_t __gthread_active_mutex = PTHREAD_MUTEX_INITIALIZER;
- pthread_t t;
- pthread_attr_t a;
- int result;
+ pthread_t __t;
+ pthread_attr_t __a;
+ int __result;
__gthrw_(pthread_mutex_lock) (&__gthread_active_mutex);
if (__gthread_active < 0)
{
- __gthrw_(pthread_attr_init) (&a);
- __gthrw_(pthread_attr_setdetachstate) (&a, PTHREAD_CREATE_DETACHED);
- result = __gthrw_(pthread_create) (&t, &a, __gthread_start, NULL);
- if (result != ENOSYS)
+ __gthrw_(pthread_attr_init) (&__a);
+ __gthrw_(pthread_attr_setdetachstate) (&__a, PTHREAD_CREATE_DETACHED);
+ __result = __gthrw_(pthread_create) (&__t, &__a, __gthread_start, NULL);
+ if (__result != ENOSYS)
__gthread_active = 1;
else
__gthread_active = 0;
- __gthrw_(pthread_attr_destroy) (&a);
+ __gthrw_(pthread_attr_destroy) (&__a);
}
__gthrw_(pthread_mutex_unlock) (&__gthread_active_mutex);
}
#else /* _LIBOBJC */
static inline int
-__gthread_once (__gthread_once_t *once, void (*func) (void))
+__gthread_create (__gthread_t *__threadid, void *(*__func) (void*),
+ void *__args)
+{
+ return __gthrw_(pthread_create) (__threadid, NULL, __func, __args);
+}
+
+static inline int
+__gthread_join (__gthread_t __threadid, void **__value_ptr)
+{
+ return __gthrw_(pthread_join) (__threadid, __value_ptr);
+}
+
+static inline int
+__gthread_detach (__gthread_t __threadid)
+{
+ return __gthrw_(pthread_detach) (__threadid);
+}
+
+static inline int
+__gthread_equal (__gthread_t __t1, __gthread_t __t2)
+{
+ return __gthrw_(pthread_equal) (__t1, __t2);
+}
+
+static inline __gthread_t
+__gthread_self (void)
+{
+ return __gthrw_(pthread_self) ();
+}
+
+static inline int
+__gthread_yield (void)
+{
+ return __gthrw_(sched_yield) ();
+}
+
+static inline int
+__gthread_once (__gthread_once_t *__once, void (*__func) (void))
{
if (__gthread_active_p ())
- return __gthrw_(pthread_once) (once, func);
+ return __gthrw_(pthread_once) (__once, __func);
else
return -1;
}
static inline int
-__gthread_key_create (__gthread_key_t *key, void (*dtor) (void *))
+__gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *))
{
- return __gthrw_(pthread_key_create) (key, dtor);
+ return __gthrw_(pthread_key_create) (__key, __dtor);
}
static inline int
-__gthread_key_delete (__gthread_key_t key)
+__gthread_key_delete (__gthread_key_t __key)
{
- return __gthrw_(pthread_key_delete) (key);
+ return __gthrw_(pthread_key_delete) (__key);
}
static inline void *
-__gthread_getspecific (__gthread_key_t key)
+__gthread_getspecific (__gthread_key_t __key)
+{
+ return __gthrw_(pthread_getspecific) (__key);
+}
+
+static inline int
+__gthread_setspecific (__gthread_key_t __key, const void *__ptr)
{
- return __gthrw_(pthread_getspecific) (key);
+ return __gthrw_(pthread_setspecific) (__key, __ptr);
}
static inline int
-__gthread_setspecific (__gthread_key_t key, const void *ptr)
+__gthread_mutex_destroy (__gthread_mutex_t *__mutex)
{
- return __gthrw_(pthread_setspecific) (key, ptr);
+ if (__gthread_active_p ())
+ return __gthrw_(pthread_mutex_destroy) (__mutex);
+ else
+ return 0;
}
static inline int
-__gthread_mutex_destroy (__gthread_mutex_t *mutex)
+__gthread_mutex_lock (__gthread_mutex_t *__mutex)
{
if (__gthread_active_p ())
- return __gthrw_(pthread_mutex_destroy) (mutex);
+ return __gthrw_(pthread_mutex_lock) (__mutex);
else
return 0;
}
static inline int
-__gthread_mutex_lock (__gthread_mutex_t *mutex)
+__gthread_mutex_trylock (__gthread_mutex_t *__mutex)
{
if (__gthread_active_p ())
- return __gthrw_(pthread_mutex_lock) (mutex);
+ return __gthrw_(pthread_mutex_trylock) (__mutex);
else
return 0;
}
+#ifdef _POSIX_TIMEOUTS
+#if _POSIX_TIMEOUTS >= 0
static inline int
-__gthread_mutex_trylock (__gthread_mutex_t *mutex)
+__gthread_mutex_timedlock (__gthread_mutex_t *__mutex,
+ const __gthread_time_t *__abs_timeout)
{
if (__gthread_active_p ())
- return __gthrw_(pthread_mutex_trylock) (mutex);
+ return __gthrw_(pthread_mutex_timedlock) (__mutex, __abs_timeout);
else
return 0;
}
+#endif
+#endif
static inline int
-__gthread_mutex_unlock (__gthread_mutex_t *mutex)
+__gthread_mutex_unlock (__gthread_mutex_t *__mutex)
{
if (__gthread_active_p ())
- return __gthrw_(pthread_mutex_unlock) (mutex);
+ return __gthrw_(pthread_mutex_unlock) (__mutex);
else
return 0;
}
#ifndef PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
static inline int
-__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *mutex)
+__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex)
{
if (__gthread_active_p ())
{
- pthread_mutexattr_t attr;
- int r;
-
- r = __gthrw_(pthread_mutexattr_init) (&attr);
- if (!r)
- r = __gthrw_(pthread_mutexattr_settype) (&attr, PTHREAD_MUTEX_RECURSIVE);
- if (!r)
- r = __gthrw_(pthread_mutex_init) (mutex, &attr);
- if (!r)
- r = __gthrw_(pthread_mutexattr_destroy) (&attr);
- return r;
+ pthread_mutexattr_t __attr;
+ int __r;
+
+ __r = __gthrw_(pthread_mutexattr_init) (&__attr);
+ if (!__r)
+ __r = __gthrw_(pthread_mutexattr_settype) (&__attr,
+ PTHREAD_MUTEX_RECURSIVE);
+ if (!__r)
+ __r = __gthrw_(pthread_mutex_init) (__mutex, &__attr);
+ if (!__r)
+ __r = __gthrw_(pthread_mutexattr_destroy) (&__attr);
+ return __r;
}
return 0;
}
#endif
static inline int
-__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *mutex)
+__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex)
+{
+ return __gthread_mutex_lock (__mutex);
+}
+
+static inline int
+__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex)
+{
+ return __gthread_mutex_trylock (__mutex);
+}
+
+#ifdef _POSIX_TIMEOUTS
+#if _POSIX_TIMEOUTS >= 0
+static inline int
+__gthread_recursive_mutex_timedlock (__gthread_recursive_mutex_t *__mutex,
+ const __gthread_time_t *__abs_timeout)
+{
+ return __gthread_mutex_timedlock (__mutex, __abs_timeout);
+}
+#endif
+#endif
+
+static inline int
+__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex)
+{
+ return __gthread_mutex_unlock (__mutex);
+}
+
+static inline int
+__gthread_cond_broadcast (__gthread_cond_t *__cond)
+{
+ return __gthrw_(pthread_cond_broadcast) (__cond);
+}
+
+static inline int
+__gthread_cond_signal (__gthread_cond_t *__cond)
{
- return __gthread_mutex_lock (mutex);
+ return __gthrw_(pthread_cond_signal) (__cond);
}
static inline int
-__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *mutex)
+__gthread_cond_wait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex)
{
- return __gthread_mutex_trylock (mutex);
+ return __gthrw_(pthread_cond_wait) (__cond, __mutex);
}
static inline int
-__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *mutex)
+__gthread_cond_timedwait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex,
+ const __gthread_time_t *__abs_timeout)
{
- return __gthread_mutex_unlock (mutex);
+ return __gthrw_(pthread_cond_timedwait) (__cond, __mutex, __abs_timeout);
}
static inline int
-__gthread_cond_broadcast (__gthread_cond_t *cond)
+__gthread_cond_wait_recursive (__gthread_cond_t *__cond,
+ __gthread_recursive_mutex_t *__mutex)
{
- return __gthrw_(pthread_cond_broadcast) (cond);
+ return __gthread_cond_wait (__cond, __mutex);
}
static inline int
-__gthread_cond_wait (__gthread_cond_t *cond, __gthread_mutex_t *mutex)
+__gthread_cond_timedwait_recursive (__gthread_cond_t *__cond,
+ __gthread_recursive_mutex_t *__mutex,
+ const __gthread_time_t *__abs_timeout)
{
- return __gthrw_(pthread_cond_wait) (cond, mutex);
+ return __gthread_cond_timedwait (__cond, __mutex, __abs_timeout);
}
static inline int
-__gthread_cond_wait_recursive (__gthread_cond_t *cond,
- __gthread_recursive_mutex_t *mutex)
+__gthread_cond_destroy (__gthread_cond_t* __cond)
{
- return __gthread_cond_wait (cond, mutex);
+ return __gthrw_(pthread_cond_destroy) (__cond);
}
#endif /* _LIBOBJC */
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