/* Threads compatibility routines for libgcc2 and libobjc. */
/* Compile this one with gcc. */
-/* Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+ Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC 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 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.
-GNU CC 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.
+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 GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+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. */
/* As a special exception, if you link this library with other files,
some of which are compiled with GCC, to produce an executable,
This exception does not however invalidate any other reasons why
the executable file might be covered by the GNU General Public License. */
-#ifndef __gthr_posix_h
-#define __gthr_posix_h
+#ifndef GCC_GTHR_POSIX_H
+#define GCC_GTHR_POSIX_H
/* POSIX threads specific definitions.
- Easy, since the interface is just one-to-one mapping. */
+ Easy, since the interface is just one-to-one mapping. */
#define __GTHREADS 1
+/* Some implementations of <pthread.h> require this to be defined. */
+#if !defined(_REENTRANT) && defined(__osf__)
+#define _REENTRANT 1
+#endif
+
#include <pthread.h>
+#include <unistd.h>
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;
+
+/* POSIX like conditional variables are supported. Please look at comments
+ in gthr.h for details. */
+#define __GTHREAD_HAS_COND 1
#define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
#define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT
+#if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER)
+#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER
+#elif defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP)
+#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
+#else
+#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
+#endif
+#define __GTHREAD_COND_INIT PTHREAD_COND_INITIALIZER
#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
+# ifndef __gthrw_pragma
+# define __gthrw_pragma(pragma)
+# endif
+# define __gthrw2(name,name2,type) \
+ static __typeof(type) name __attribute__ ((__weakref__(#name2))); \
+ __gthrw_pragma(weak type)
+# define __gthrw_(name) __gthrw_ ## name
+#else
+# define __gthrw2(name,name2,type)
+# define __gthrw_(name) name
+#endif
-#pragma weak pthread_once
-#pragma weak pthread_key_create
-#pragma weak pthread_key_delete
-#pragma weak pthread_getspecific
-#pragma weak pthread_setspecific
-#pragma weak pthread_create
+/* Typically, __gthrw_foo is a weak reference to symbol foo. */
+#define __gthrw(name) __gthrw2(__gthrw_ ## name,name,name)
+
+/* On Tru64, /usr/include/pthread.h uses #pragma extern_prefix "__" to
+ map a subset of the POSIX pthread API to mangled versions of their
+ names. */
+#if defined(__osf__) && defined(_PTHREAD_USE_MANGLED_NAMES_)
+#define __gthrw3(name) __gthrw2(__gthrw_ ## name, __ ## name, name)
+__gthrw3(pthread_once)
+__gthrw3(pthread_getspecific)
+__gthrw3(pthread_setspecific)
+__gthrw3(pthread_create)
+__gthrw3(pthread_cancel)
+__gthrw3(pthread_mutex_lock)
+__gthrw3(pthread_mutex_trylock)
+__gthrw3(pthread_mutex_unlock)
+__gthrw3(pthread_mutex_init)
+__gthrw3(pthread_cond_broadcast)
+__gthrw3(pthread_cond_wait)
+#else
+__gthrw(pthread_once)
+__gthrw(pthread_getspecific)
+__gthrw(pthread_setspecific)
+__gthrw(pthread_create)
+__gthrw(pthread_cancel)
+__gthrw(pthread_mutex_lock)
+__gthrw(pthread_mutex_trylock)
+__gthrw(pthread_mutex_unlock)
+__gthrw(pthread_mutex_init)
+__gthrw(pthread_cond_broadcast)
+__gthrw(pthread_cond_wait)
+#endif
-#pragma weak pthread_mutex_lock
-#pragma weak pthread_mutex_trylock
-#pragma weak pthread_mutex_unlock
+__gthrw(pthread_key_create)
+__gthrw(pthread_key_delete)
+__gthrw(pthread_mutexattr_init)
+__gthrw(pthread_mutexattr_settype)
+__gthrw(pthread_mutexattr_destroy)
+
+
+#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_max)
+__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)
+#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
+__gthrw(pthread_getschedparam)
+__gthrw(pthread_setschedparam)
+#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
+#endif /* _LIBOBJC || _LIBOBJC_WEAK */
-#ifdef _LIBOBJC
-/* Objective C. */
-#pragma weak pthread_cond_broadcast
-#pragma weak pthread_cond_destroy
-#pragma weak pthread_cond_init
-#pragma weak pthread_cond_signal
-#pragma weak pthread_cond_wait
-#pragma weak pthread_exit
-#pragma weak pthread_mutex_init
-#pragma weak pthread_mutex_destroy
-#pragma weak pthread_self
-#pragma weak sched_yield
-#pragma weak pthread_attr_destroy
-#pragma weak pthread_attr_init
-#pragma weak pthread_attr_setdetachstate
-#pragma weak pthread_getschedparam
-#pragma weak pthread_setschedparam
-#endif
+#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
+
+/* On Solaris 2.6 up to 9, the libc exposes a POSIX threads interface even if
+ -pthreads is not specified. The functions are dummies and most return an
+ error value. However pthread_once returns 0 without invoking the routine
+ 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. */
+
+#if defined(__sun) && defined(__svr4__)
+
+static volatile int __gthread_active = -1;
+
+static void
+__gthread_trigger (void)
+{
+ __gthread_active = 1;
+}
+
+static inline int
+__gthread_active_p (void)
+{
+ static pthread_mutex_t __gthread_active_mutex = PTHREAD_MUTEX_INITIALIZER;
+ static pthread_once_t __gthread_active_once = PTHREAD_ONCE_INIT;
+
+ /* Avoid reading __gthread_active twice on the main code path. */
+ int __gthread_active_latest_value = __gthread_active;
+
+ /* This test is not protected to avoid taking a lock on the main code
+ path so every update of __gthread_active in a threaded program must
+ be atomic with regard to the result of the test. */
+ if (__builtin_expect (__gthread_active_latest_value < 0, 0))
+ {
+ if (__gthrw_(pthread_once))
+ {
+ /* If this really is a threaded program, then we must ensure that
+ __gthread_active has been set to 1 before exiting this block. */
+ __gthrw_(pthread_mutex_lock) (&__gthread_active_mutex);
+ __gthrw_(pthread_once) (&__gthread_active_once, __gthread_trigger);
+ __gthrw_(pthread_mutex_unlock) (&__gthread_active_mutex);
+ }
+
+ /* Make sure we'll never enter this block again. */
+ if (__gthread_active < 0)
+ __gthread_active = 0;
+
+ __gthread_active_latest_value = __gthread_active;
+ }
-static void *__gthread_active_ptr = &pthread_create;
+ return __gthread_active_latest_value != 0;
+}
+
+#else /* not Solaris */
static inline int
__gthread_active_p (void)
{
+ static void *const __gthread_active_ptr
+ = __extension__ (void *) &__gthrw_(pthread_cancel);
return __gthread_active_ptr != 0;
}
+#endif /* Solaris */
+
#else /* not SUPPORTS_WEAK */
+/* Similar to Solaris, HP-UX 11 for PA-RISC provides stubs for pthread
+ calls in shared flavors of the HP-UX C library. Most of the stubs
+ have no functionality. The details are described in the "libc cumulative
+ patch" for each subversion of HP-UX 11. There are two special interfaces
+ provided for checking whether an application is linked to a pthread
+ library or not. However, these interfaces aren't available in early
+ libc versions. We also can't use pthread_once as some libc versions
+ call the init function. So, we use pthread_create to check whether it
+ is possible to create a thread or not. The stub implementation returns
+ the error number ENOSYS. */
+
+#if defined(__hppa__) && defined(__hpux__)
+
+#include <errno.h>
+
+static volatile int __gthread_active = -1;
+
+static void *
+__gthread_start (void *arg __attribute__((unused)))
+{
+ return NULL;
+}
+
+static void __gthread_active_init (void) __attribute__((noinline));
+static void
+__gthread_active_init (void)
+{
+ static pthread_mutex_t __gthread_active_mutex = PTHREAD_MUTEX_INITIALIZER;
+ 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)
+ __gthread_active = 1;
+ else
+ __gthread_active = 0;
+ __gthrw_(pthread_attr_destroy) (&a);
+ }
+ __gthrw_(pthread_mutex_unlock) (&__gthread_active_mutex);
+}
+
+static inline int
+__gthread_active_p (void)
+{
+ /* Avoid reading __gthread_active twice on the main code path. */
+ int __gthread_active_latest_value = __gthread_active;
+
+ /* This test is not protected to avoid taking a lock on the main code
+ path so every update of __gthread_active in a threaded program must
+ be atomic with regard to the result of the test. */
+ if (__builtin_expect (__gthread_active_latest_value < 0, 0))
+ {
+ __gthread_active_init ();
+ __gthread_active_latest_value = __gthread_active;
+ }
+
+ return __gthread_active_latest_value != 0;
+}
+
+#else /* not hppa-hpux */
+
static inline int
__gthread_active_p (void)
{
return 1;
}
+#endif /* hppa-hpux */
+
#endif /* SUPPORTS_WEAK */
#ifdef _LIBOBJC
/* Backend initialization functions */
-/* Initialize the threads subsystem. */
+/* Initialize the threads subsystem. */
static inline int
-__gthread_objc_init_thread_system(void)
+__gthread_objc_init_thread_system (void)
{
if (__gthread_active_p ())
{
- /* Initialize the thread storage key */
- if (pthread_key_create(&_objc_thread_storage, NULL) == 0)
- {
- /* The normal default detach state for threads is
- * PTHREAD_CREATE_JOINABLE which causes threads to not die
- * when you think they should. */
- if (pthread_attr_init(&_objc_thread_attribs) == 0
- && pthread_attr_setdetachstate(&_objc_thread_attribs,
- PTHREAD_CREATE_DETACHED) == 0)
- return 0;
- }
+ /* Initialize the thread storage key. */
+ if (__gthrw_(pthread_key_create) (&_objc_thread_storage, NULL) == 0)
+ {
+ /* The normal default detach state for threads is
+ * PTHREAD_CREATE_JOINABLE which causes threads to not die
+ * when you think they should. */
+ if (__gthrw_(pthread_attr_init) (&_objc_thread_attribs) == 0
+ && __gthrw_(pthread_attr_setdetachstate) (&_objc_thread_attribs,
+ PTHREAD_CREATE_DETACHED) == 0)
+ return 0;
+ }
}
- else
- return -1;
+
+ return -1;
}
-/* Close the threads subsystem. */
+/* Close the threads subsystem. */
static inline int
-__gthread_objc_close_thread_system(void)
+__gthread_objc_close_thread_system (void)
{
if (__gthread_active_p ()
- && pthread_key_delete(_objc_thread_storage) == 0
- && pthread_attr_destroy(&_objc_thread_attribs) == 0)
+ && __gthrw_(pthread_key_delete) (_objc_thread_storage) == 0
+ && __gthrw_(pthread_attr_destroy) (&_objc_thread_attribs) == 0)
return 0;
return -1;
/* Backend thread functions */
-/* Create a new thread of execution. */
+/* Create a new thread of execution. */
static inline objc_thread_t
-__gthread_objc_thread_detach(void (*func)(void *), void *arg)
+__gthread_objc_thread_detach (void (*func)(void *), void *arg)
{
objc_thread_t thread_id;
pthread_t new_thread_handle;
if (!__gthread_active_p ())
return NULL;
-
- if ( !(pthread_create(&new_thread_handle, NULL, (void *)func, arg)) )
- thread_id = *(objc_thread_t *)&new_thread_handle;
+
+ if (!(__gthrw_(pthread_create) (&new_thread_handle, NULL, (void *) func, arg)))
+ thread_id = (objc_thread_t) new_thread_handle;
else
thread_id = NULL;
-
+
return thread_id;
}
-/* Set the current thread's priority. */
+/* Set the current thread's priority. */
static inline int
-__gthread_objc_thread_set_priority(int priority)
+__gthread_objc_thread_set_priority (int priority)
{
- if (!__gthread_active_p())
- return -1;
- else {
- pthread_t thread_id = pthread_self();
- int policy;
- struct sched_param params;
- int priority_min, priority_max;
-
- if (pthread_getschedparam(thread_id, &policy, ¶ms) == 0)
- {
- if ((priority_max = sched_get_priority_max(policy)) != 0)
- return -1;
-
- if ((priority_min = sched_get_priority_min(policy)) != 0)
- return -1;
-
- if (priority > priority_max)
- priority = priority_max;
- else if (priority < priority_min)
- priority = priority_min;
- params.sched_priority = priority;
-
- /*
- * The solaris 7 and several other man pages incorrectly state that
- * this should be a pointer to policy but pthread.h is universally
- * at odds with this.
- */
- if (pthread_setschedparam(thread_id, policy, ¶ms) == 0)
- return 0;
- }
+ if (!__gthread_active_p ())
return -1;
- }
+ else
+ {
+#ifdef _POSIX_PRIORITY_SCHEDULING
+#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
+ pthread_t thread_id = __gthrw_(pthread_self) ();
+ int policy;
+ struct sched_param params;
+ int priority_min, priority_max;
+
+ if (__gthrw_(pthread_getschedparam) (thread_id, &policy, ¶ms) == 0)
+ {
+ if ((priority_max = __gthrw_(sched_get_priority_max) (policy)) == -1)
+ return -1;
+
+ if ((priority_min = __gthrw_(sched_get_priority_min) (policy)) == -1)
+ return -1;
+
+ if (priority > priority_max)
+ priority = priority_max;
+ else if (priority < priority_min)
+ priority = priority_min;
+ params.sched_priority = priority;
+
+ /*
+ * The solaris 7 and several other man pages incorrectly state that
+ * this should be a pointer to policy but pthread.h is universally
+ * at odds with this.
+ */
+ if (__gthrw_(pthread_setschedparam) (thread_id, policy, ¶ms) == 0)
+ return 0;
+ }
+#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
+#endif /* _POSIX_PRIORITY_SCHEDULING */
+ return -1;
+ }
}
-/* Return the current thread's priority. */
+/* Return the current thread's priority. */
static inline int
-__gthread_objc_thread_get_priority(void)
+__gthread_objc_thread_get_priority (void)
{
+#ifdef _POSIX_PRIORITY_SCHEDULING
+#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
if (__gthread_active_p ())
{
int policy;
struct sched_param params;
- if (pthread_getschedparam(pthread_self(), &policy, ¶ms) == 0)
- return params.sched_priority;
+ if (__gthrw_(pthread_getschedparam) (__gthrw_(pthread_self) (), &policy, ¶ms) == 0)
+ return params.sched_priority;
else
- return -1;
+ return -1;
}
else
+#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
+#endif /* _POSIX_PRIORITY_SCHEDULING */
return OBJC_THREAD_INTERACTIVE_PRIORITY;
}
-/* Yield our process time to another thread. */
+/* Yield our process time to another thread. */
static inline void
-__gthread_objc_thread_yield(void)
+__gthread_objc_thread_yield (void)
{
if (__gthread_active_p ())
- sched_yield();
+ __gthrw_(sched_yield) ();
}
-/* Terminate the current thread. */
+/* Terminate the current thread. */
static inline int
-__gthread_objc_thread_exit(void)
+__gthread_objc_thread_exit (void)
{
if (__gthread_active_p ())
/* exit the thread */
- pthread_exit(&__objc_thread_exit_status);
+ __gthrw_(pthread_exit) (&__objc_thread_exit_status);
/* Failed if we reached here */
return -1;
}
-/* Returns an integer value which uniquely describes a thread. */
+/* Returns an integer value which uniquely describes a thread. */
static inline objc_thread_t
-__gthread_objc_thread_id(void)
+__gthread_objc_thread_id (void)
{
if (__gthread_active_p ())
- {
- pthread_t self = pthread_self();
-
- return *(objc_thread_t *)&self;
- }
+ return (objc_thread_t) __gthrw_(pthread_self) ();
else
- return (objc_thread_t)1;
+ return (objc_thread_t) 1;
}
-/* Sets the thread's local storage pointer. */
+/* Sets the thread's local storage pointer. */
static inline int
-__gthread_objc_thread_set_data(void *value)
+__gthread_objc_thread_set_data (void *value)
{
if (__gthread_active_p ())
- return pthread_setspecific(_objc_thread_storage, value);
+ return __gthrw_(pthread_setspecific) (_objc_thread_storage, value);
else
{
thread_local_storage = value;
}
}
-/* Returns the thread's local storage pointer. */
+/* Returns the thread's local storage pointer. */
static inline void *
-__gthread_objc_thread_get_data(void)
+__gthread_objc_thread_get_data (void)
{
if (__gthread_active_p ())
- return pthread_getspecific(_objc_thread_storage);
+ return __gthrw_(pthread_getspecific) (_objc_thread_storage);
else
return thread_local_storage;
}
/* Backend mutex functions */
-/* Allocate a mutex. */
+/* Allocate a mutex. */
static inline int
-__gthread_objc_mutex_allocate(objc_mutex_t mutex)
+__gthread_objc_mutex_allocate (objc_mutex_t mutex)
{
if (__gthread_active_p ())
{
- mutex->backend = objc_malloc(sizeof(pthread_mutex_t));
+ mutex->backend = objc_malloc (sizeof (pthread_mutex_t));
- if (pthread_mutex_init((pthread_mutex_t *)mutex->backend, NULL))
+ if (__gthrw_(pthread_mutex_init) ((pthread_mutex_t *) mutex->backend, NULL))
{
- objc_free(mutex->backend);
+ objc_free (mutex->backend);
mutex->backend = NULL;
return -1;
}
return 0;
}
-/* Deallocate a mutex. */
+/* Deallocate a mutex. */
static inline int
-__gthread_objc_mutex_deallocate(objc_mutex_t mutex)
+__gthread_objc_mutex_deallocate (objc_mutex_t mutex)
{
if (__gthread_active_p ())
{
/*
* Posix Threads specifically require that the thread be unlocked
- * for pthread_mutex_destroy to work.
+ * for __gthrw_(pthread_mutex_destroy) to work.
*/
do
{
- count = pthread_mutex_unlock((pthread_mutex_t *)mutex->backend);
+ count = __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend);
if (count < 0)
return -1;
}
while (count);
- if (pthread_mutex_destroy((pthread_mutex_t *)mutex->backend))
+ if (__gthrw_(pthread_mutex_destroy) ((pthread_mutex_t *) mutex->backend))
return -1;
- objc_free(mutex->backend);
+ objc_free (mutex->backend);
mutex->backend = NULL;
}
return 0;
}
-/* Grab a lock on a mutex. */
+/* Grab a lock on a mutex. */
static inline int
-__gthread_objc_mutex_lock(objc_mutex_t mutex)
+__gthread_objc_mutex_lock (objc_mutex_t mutex)
{
- if (__gthread_active_p ())
- return pthread_mutex_lock((pthread_mutex_t *)mutex->backend);
- else
- return 0;
+ if (__gthread_active_p ()
+ && __gthrw_(pthread_mutex_lock) ((pthread_mutex_t *) mutex->backend) != 0)
+ {
+ return -1;
+ }
+
+ return 0;
}
-/* Try to grab a lock on a mutex. */
+/* Try to grab a lock on a mutex. */
static inline int
-__gthread_objc_mutex_trylock(objc_mutex_t mutex)
+__gthread_objc_mutex_trylock (objc_mutex_t mutex)
{
- if (__gthread_active_p ())
- return pthread_mutex_trylock((pthread_mutex_t *)mutex->backend);
- else
- return 0;
+ if (__gthread_active_p ()
+ && __gthrw_(pthread_mutex_trylock) ((pthread_mutex_t *) mutex->backend) != 0)
+ {
+ return -1;
+ }
+
+ return 0;
}
/* Unlock the mutex */
static inline int
-__gthread_objc_mutex_unlock(objc_mutex_t mutex)
+__gthread_objc_mutex_unlock (objc_mutex_t mutex)
{
- if (__gthread_active_p ())
- return pthread_mutex_unlock((pthread_mutex_t *)mutex->backend);
- else
- return 0;
+ if (__gthread_active_p ()
+ && __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend) != 0)
+ {
+ return -1;
+ }
+
+ return 0;
}
/* Backend condition mutex functions */
-/* Allocate a condition. */
+/* Allocate a condition. */
static inline int
-__gthread_objc_condition_allocate(objc_condition_t condition)
+__gthread_objc_condition_allocate (objc_condition_t condition)
{
if (__gthread_active_p ())
{
- condition->backend = objc_malloc(sizeof(pthread_cond_t));
+ condition->backend = objc_malloc (sizeof (pthread_cond_t));
- if (pthread_cond_init((pthread_cond_t *)condition->backend, NULL))
+ if (__gthrw_(pthread_cond_init) ((pthread_cond_t *) condition->backend, NULL))
{
- objc_free(condition->backend);
+ objc_free (condition->backend);
condition->backend = NULL;
return -1;
}
return 0;
}
-/* Deallocate a condition. */
+/* Deallocate a condition. */
static inline int
-__gthread_objc_condition_deallocate(objc_condition_t condition)
+__gthread_objc_condition_deallocate (objc_condition_t condition)
{
if (__gthread_active_p ())
{
- if (pthread_cond_destroy((pthread_cond_t *)condition->backend))
+ if (__gthrw_(pthread_cond_destroy) ((pthread_cond_t *) condition->backend))
return -1;
- objc_free(condition->backend);
+ objc_free (condition->backend);
condition->backend = NULL;
}
return 0;
/* Wait on the condition */
static inline int
-__gthread_objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex)
+__gthread_objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex)
{
if (__gthread_active_p ())
- return pthread_cond_wait((pthread_cond_t *)condition->backend,
- (pthread_mutex_t *)mutex->backend);
+ return __gthrw_(pthread_cond_wait) ((pthread_cond_t *) condition->backend,
+ (pthread_mutex_t *) mutex->backend);
else
return 0;
}
-/* Wake up all threads waiting on this condition. */
+/* Wake up all threads waiting on this condition. */
static inline int
-__gthread_objc_condition_broadcast(objc_condition_t condition)
+__gthread_objc_condition_broadcast (objc_condition_t condition)
{
if (__gthread_active_p ())
- return pthread_cond_broadcast((pthread_cond_t *)condition->backend);
+ return __gthrw_(pthread_cond_broadcast) ((pthread_cond_t *) condition->backend);
else
return 0;
}
-/* Wake up one thread waiting on this condition. */
+/* Wake up one thread waiting on this condition. */
static inline int
-__gthread_objc_condition_signal(objc_condition_t condition)
+__gthread_objc_condition_signal (objc_condition_t condition)
{
if (__gthread_active_p ())
- return pthread_cond_signal((pthread_cond_t *)condition->backend);
+ return __gthrw_(pthread_cond_signal) ((pthread_cond_t *) condition->backend);
else
return 0;
}
__gthread_once (__gthread_once_t *once, void (*func) (void))
{
if (__gthread_active_p ())
- return 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 *))
{
- return pthread_key_create (key, dtor);
-}
-
-static inline int
-__gthread_key_dtor (__gthread_key_t key, void *ptr)
-{
- /* Just reset the key value to zero. */
- if (ptr)
- return pthread_setspecific (key, 0);
- else
- return 0;
+ return __gthrw_(pthread_key_create) (key, dtor);
}
static inline int
__gthread_key_delete (__gthread_key_t key)
{
- return pthread_key_delete (key);
+ return __gthrw_(pthread_key_delete) (key);
}
static inline void *
__gthread_getspecific (__gthread_key_t key)
{
- return pthread_getspecific (key);
+ return __gthrw_(pthread_getspecific) (key);
}
static inline int
__gthread_setspecific (__gthread_key_t key, const void *ptr)
{
- return pthread_setspecific (key, ptr);
+ return __gthrw_(pthread_setspecific) (key, ptr);
}
static inline int
__gthread_mutex_lock (__gthread_mutex_t *mutex)
{
if (__gthread_active_p ())
- return pthread_mutex_lock (mutex);
+ return __gthrw_(pthread_mutex_lock) (mutex);
else
return 0;
}
__gthread_mutex_trylock (__gthread_mutex_t *mutex)
{
if (__gthread_active_p ())
- return pthread_mutex_trylock (mutex);
+ return __gthrw_(pthread_mutex_trylock) (mutex);
else
return 0;
}
__gthread_mutex_unlock (__gthread_mutex_t *mutex)
{
if (__gthread_active_p ())
- return 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)
+{
+ 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;
+ }
+ return 0;
+}
+#endif
+
+static inline int
+__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);
+}
+
+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_wait (__gthread_cond_t *cond, __gthread_mutex_t *mutex)
+{
+ return __gthrw_(pthread_cond_wait) (cond, mutex);
+}
+
+static inline int
+__gthread_cond_wait_recursive (__gthread_cond_t *cond,
+ __gthread_recursive_mutex_t *mutex)
+{
+ return __gthread_cond_wait (cond, mutex);
+}
+
#endif /* _LIBOBJC */
-#endif /* not __gthr_posix_h */
+#endif /* ! GCC_GTHR_POSIX_H */