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Diffstat (limited to 'gcc-4.9/libgcc/gthr-posix.h')
| -rw-r--r-- | gcc-4.9/libgcc/gthr-posix.h | 889 |
1 files changed, 889 insertions, 0 deletions
diff --git a/gcc-4.9/libgcc/gthr-posix.h b/gcc-4.9/libgcc/gthr-posix.h new file mode 100644 index 000000000..7003a9135 --- /dev/null +++ b/gcc-4.9/libgcc/gthr-posix.h @@ -0,0 +1,889 @@ +/* Threads compatibility routines for libgcc2 and libobjc. */ +/* Compile this one with gcc. */ +/* Copyright (C) 1997-2014 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 GCC_GTHR_POSIX_H +#define GCC_GTHR_POSIX_H + +/* POSIX threads specific definitions. + Easy, since the interface is just one-to-one mapping. */ + +#define __GTHREADS 1 +#define __GTHREADS_CXX0X 1 + +#include <pthread.h> + +#if ((defined(_LIBOBJC) || defined(_LIBOBJC_WEAK)) \ + || !defined(_GTHREAD_USE_MUTEX_TIMEDLOCK)) +# include <unistd.h> +# if defined(_POSIX_TIMEOUTS) && _POSIX_TIMEOUTS >= 0 +# define _GTHREAD_USE_MUTEX_TIMEDLOCK 1 +# else +# define _GTHREAD_USE_MUTEX_TIMEDLOCK 0 +# endif +#endif + +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_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER +#define __GTHREAD_MUTEX_INIT_FUNCTION __gthread_mutex_init_function +#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 +#define __GTHREAD_TIME_INIT {0,0} + +#ifdef _GTHREAD_USE_MUTEX_INIT_FUNC +# undef __GTHREAD_MUTEX_INIT +#endif +#ifdef _GTHREAD_USE_RECURSIVE_MUTEX_INIT_FUNC +# undef __GTHREAD_RECURSIVE_MUTEX_INIT +# undef __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION +# define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function +#endif +#ifdef _GTHREAD_USE_COND_INIT_FUNC +# undef __GTHREAD_COND_INIT +# define __GTHREAD_COND_INIT_FUNCTION __gthread_cond_init_function +#endif + +#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 + +/* Typically, __gthrw_foo is a weak reference to symbol foo. */ +#define __gthrw(name) __gthrw2(__gthrw_ ## name,name,name) + +__gthrw(pthread_once) +__gthrw(pthread_getspecific) +__gthrw(pthread_setspecific) + +__gthrw(pthread_create) +__gthrw(pthread_join) +__gthrw(pthread_equal) +__gthrw(pthread_self) +__gthrw(pthread_detach) +#ifndef __BIONIC__ +__gthrw(pthread_cancel) +#endif +__gthrw(sched_yield) + +__gthrw(pthread_mutex_lock) +__gthrw(pthread_mutex_trylock) +#if _GTHREAD_USE_MUTEX_TIMEDLOCK +__gthrw(pthread_mutex_timedlock) +#endif +__gthrw(pthread_mutex_unlock) +__gthrw(pthread_mutex_init) +__gthrw(pthread_mutex_destroy) + +__gthrw(pthread_cond_init) +__gthrw(pthread_cond_broadcast) +__gthrw(pthread_cond_signal) +__gthrw(pthread_cond_wait) +__gthrw(pthread_cond_timedwait) +__gthrw(pthread_cond_destroy) + +__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. */ +__gthrw(pthread_exit) +#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(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 */ + +#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. 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(__FreeBSD__) || (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; + } + + return __gthread_active_latest_value != 0; +} + +#else /* neither FreeBSD nor Solaris */ + +/* For a program to be multi-threaded the only thing that it certainly must + be using is pthread_create. However, there may be other libraries that + intercept pthread_create with their own definitions to wrap pthreads + functionality for some purpose. In those cases, pthread_create being + defined might not necessarily mean that libpthread is actually linked + in. + + For the GNU C library, we can use a known internal name. This is always + available in the ABI, but no other library would define it. That is + ideal, since any public pthread function might be intercepted just as + pthread_create might be. __pthread_key_create is an "internal" + implementation symbol, but it is part of the public exported ABI. Also, + it's among the symbols that the static libpthread.a always links in + whenever pthread_create is used, so there is no danger of a false + negative result in any statically-linked, multi-threaded program. + + For others, we choose pthread_cancel as a function that seems unlikely + to be redefined by an interceptor library. The bionic (Android) C + library does not provide pthread_cancel, so we do use pthread_create + there (and interceptor libraries lose). */ + +#ifdef __GLIBC__ +__gthrw2(__gthrw_(__pthread_key_create), + __pthread_key_create, + pthread_key_create) +# define GTHR_ACTIVE_PROXY __gthrw_(__pthread_key_create) +#elif defined (__BIONIC__) +# define GTHR_ACTIVE_PROXY __gthrw_(pthread_create) +#else +# define GTHR_ACTIVE_PROXY __gthrw_(pthread_cancel) +#endif + +static inline int +__gthread_active_p (void) +{ + static void *const __gthread_active_ptr + = __extension__ (void *) >HR_ACTIVE_PROXY; + return __gthread_active_ptr != 0; +} + +#endif /* FreeBSD or 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 shared pthread + library or not. However, these interfaces aren't available in early + libpthread libraries. We also need a test that works for archive + libraries. We can't use pthread_once as some libc versions call the + init function. We also can't use pthread_create or pthread_attr_init + as these create a thread and thereby prevent changing the default stack + size. The function pthread_default_stacksize_np is available in both + the archive and shared versions of libpthread. It can be used to + determine the default pthread stack size. There is a stub in some + shared libc versions which returns a zero size if pthreads are not + active. We provide an equivalent stub to handle cases where libc + doesn't provide one. */ + +#if defined(__hppa__) && defined(__hpux__) + +static volatile int __gthread_active = -1; + +static inline int +__gthread_active_p (void) +{ + /* Avoid reading __gthread_active twice on the main code path. */ + int __gthread_active_latest_value = __gthread_active; + size_t __s; + + if (__builtin_expect (__gthread_active_latest_value < 0, 0)) + { + pthread_default_stacksize_np (0, &__s); + __gthread_active = __s ? 1 : 0; + __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 + +/* This is the config.h file in libobjc/ */ +#include <config.h> + +#ifdef HAVE_SCHED_H +# include <sched.h> +#endif + +/* Key structure for maintaining thread specific storage */ +static pthread_key_t _objc_thread_storage; +static pthread_attr_t _objc_thread_attribs; + +/* Thread local storage for a single thread */ +static void *thread_local_storage = NULL; + +/* Backend initialization functions */ + +/* Initialize the threads subsystem. */ +static inline int +__gthread_objc_init_thread_system (void) +{ + if (__gthread_active_p ()) + { + /* 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; + } + } + + return -1; +} + +/* Close the threads subsystem. */ +static inline int +__gthread_objc_close_thread_system (void) +{ + if (__gthread_active_p () + && __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. */ +static inline objc_thread_t +__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 (!(__gthrw_(pthread_create) (&new_thread_handle, &_objc_thread_attribs, + (void *) func, arg))) + thread_id = (objc_thread_t) new_thread_handle; + else + thread_id = NULL; + + return thread_id; +} + +/* Set the current thread's priority. */ +static inline int +__gthread_objc_thread_set_priority (int priority) +{ + 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. */ +static inline int +__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 (__gthrw_(pthread_getschedparam) (__gthrw_(pthread_self) (), &policy, ¶ms) == 0) + return params.sched_priority; + else + return -1; + } + else +#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ +#endif /* _POSIX_PRIORITY_SCHEDULING */ + return OBJC_THREAD_INTERACTIVE_PRIORITY; +} + +/* Yield our process time to another thread. */ +static inline void +__gthread_objc_thread_yield (void) +{ + if (__gthread_active_p ()) + __gthrw_(sched_yield) (); +} + +/* Terminate the current thread. */ +static inline int +__gthread_objc_thread_exit (void) +{ + if (__gthread_active_p ()) + /* exit the thread */ + __gthrw_(pthread_exit) (&__objc_thread_exit_status); + + /* Failed if we reached here */ + return -1; +} + +/* Returns an integer value which uniquely describes a thread. */ +static inline objc_thread_t +__gthread_objc_thread_id (void) +{ + if (__gthread_active_p ()) + return (objc_thread_t) __gthrw_(pthread_self) (); + else + return (objc_thread_t) 1; +} + +/* Sets the thread's local storage pointer. */ +static inline int +__gthread_objc_thread_set_data (void *value) +{ + if (__gthread_active_p ()) + return __gthrw_(pthread_setspecific) (_objc_thread_storage, value); + else + { + thread_local_storage = value; + return 0; + } +} + +/* Returns the thread's local storage pointer. */ +static inline void * +__gthread_objc_thread_get_data (void) +{ + if (__gthread_active_p ()) + return __gthrw_(pthread_getspecific) (_objc_thread_storage); + else + return thread_local_storage; +} + +/* Backend mutex functions */ + +/* Allocate a mutex. */ +static inline int +__gthread_objc_mutex_allocate (objc_mutex_t mutex) +{ + if (__gthread_active_p ()) + { + mutex->backend = objc_malloc (sizeof (pthread_mutex_t)); + + if (__gthrw_(pthread_mutex_init) ((pthread_mutex_t *) mutex->backend, NULL)) + { + objc_free (mutex->backend); + mutex->backend = NULL; + return -1; + } + } + + return 0; +} + +/* Deallocate a mutex. */ +static inline int +__gthread_objc_mutex_deallocate (objc_mutex_t mutex) +{ + if (__gthread_active_p ()) + { + int count; + + /* + * Posix Threads specifically require that the thread be unlocked + * for __gthrw_(pthread_mutex_destroy) to work. + */ + + do + { + count = __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend); + if (count < 0) + return -1; + } + while (count); + + if (__gthrw_(pthread_mutex_destroy) ((pthread_mutex_t *) mutex->backend)) + return -1; + + objc_free (mutex->backend); + mutex->backend = NULL; + } + return 0; +} + +/* Grab a lock on a mutex. */ +static inline int +__gthread_objc_mutex_lock (objc_mutex_t mutex) +{ + 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. */ +static inline int +__gthread_objc_mutex_trylock (objc_mutex_t mutex) +{ + 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) +{ + 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. */ +static inline int +__gthread_objc_condition_allocate (objc_condition_t condition) +{ + if (__gthread_active_p ()) + { + condition->backend = objc_malloc (sizeof (pthread_cond_t)); + + if (__gthrw_(pthread_cond_init) ((pthread_cond_t *) condition->backend, NULL)) + { + objc_free (condition->backend); + condition->backend = NULL; + return -1; + } + } + + return 0; +} + +/* Deallocate a condition. */ +static inline int +__gthread_objc_condition_deallocate (objc_condition_t condition) +{ + if (__gthread_active_p ()) + { + if (__gthrw_(pthread_cond_destroy) ((pthread_cond_t *) condition->backend)) + return -1; + + 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) +{ + if (__gthread_active_p ()) + 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. */ +static inline int +__gthread_objc_condition_broadcast (objc_condition_t condition) +{ + if (__gthread_active_p ()) + return __gthrw_(pthread_cond_broadcast) ((pthread_cond_t *) condition->backend); + else + return 0; +} + +/* Wake up one thread waiting on this condition. */ +static inline int +__gthread_objc_condition_signal (objc_condition_t condition) +{ + if (__gthread_active_p ()) + return __gthrw_(pthread_cond_signal) ((pthread_cond_t *) condition->backend); + else + return 0; +} + +#else /* _LIBOBJC */ + +static inline int +__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); + else + return -1; +} + +static inline int +__gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *)) +{ + return __gthrw_(pthread_key_create) (__key, __dtor); +} + +static inline int +__gthread_key_delete (__gthread_key_t __key) +{ + return __gthrw_(pthread_key_delete) (__key); +} + +static inline void * +__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_setspecific) (__key, __ptr); +} + +static inline void +__gthread_mutex_init_function (__gthread_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + __gthrw_(pthread_mutex_init) (__mutex, NULL); +} + +static inline int +__gthread_mutex_destroy (__gthread_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + return __gthrw_(pthread_mutex_destroy) (__mutex); + else + return 0; +} + +static inline int +__gthread_mutex_lock (__gthread_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + return __gthrw_(pthread_mutex_lock) (__mutex); + else + return 0; +} + +static inline int +__gthread_mutex_trylock (__gthread_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + return __gthrw_(pthread_mutex_trylock) (__mutex); + else + return 0; +} + +#if _GTHREAD_USE_MUTEX_TIMEDLOCK +static inline int +__gthread_mutex_timedlock (__gthread_mutex_t *__mutex, + const __gthread_time_t *__abs_timeout) +{ + if (__gthread_active_p ()) + return __gthrw_(pthread_mutex_timedlock) (__mutex, __abs_timeout); + else + return 0; +} +#endif + +static inline int +__gthread_mutex_unlock (__gthread_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + return __gthrw_(pthread_mutex_unlock) (__mutex); + else + return 0; +} + +#if !defined( PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP) \ + || defined(_GTHREAD_USE_RECURSIVE_MUTEX_INIT_FUNC) +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); +} + +#if _GTHREAD_USE_MUTEX_TIMEDLOCK +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 + +static inline int +__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex) +{ + return __gthread_mutex_unlock (__mutex); +} + +static inline int +__gthread_recursive_mutex_destroy (__gthread_recursive_mutex_t *__mutex) +{ + return __gthread_mutex_destroy (__mutex); +} + +#ifdef _GTHREAD_USE_COND_INIT_FUNC +static inline void +__gthread_cond_init_function (__gthread_cond_t *__cond) +{ + if (__gthread_active_p ()) + __gthrw_(pthread_cond_init) (__cond, NULL); +} +#endif + +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 __gthrw_(pthread_cond_signal) (__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_timedwait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex, + const __gthread_time_t *__abs_timeout) +{ + return __gthrw_(pthread_cond_timedwait) (__cond, __mutex, __abs_timeout); +} + +static inline int +__gthread_cond_wait_recursive (__gthread_cond_t *__cond, + __gthread_recursive_mutex_t *__mutex) +{ + return __gthread_cond_wait (__cond, __mutex); +} + +static inline int +__gthread_cond_destroy (__gthread_cond_t* __cond) +{ + return __gthrw_(pthread_cond_destroy) (__cond); +} + +#endif /* _LIBOBJC */ + +#endif /* ! GCC_GTHR_POSIX_H */ |