913 lines
24 KiB
C
913 lines
24 KiB
C
/* Threads compatibility routines for libgcc2 and libobjc. */
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/* Compile this one with gcc. */
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/* Copyright (C) 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
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2008, 2009, 2010, 2011 Free Software Foundation, Inc.
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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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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_GTHR_POSIX_H
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#define GCC_GTHR_POSIX_H
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/* POSIX threads specific definitions.
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Easy, since the interface is just one-to-one mapping. */
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#define __GTHREADS 1
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#define __GTHREADS_CXX0X 1
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/* Some implementations of <pthread.h> require this to be defined. */
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#if !defined(_REENTRANT) && defined(__osf__)
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#define _REENTRANT 1
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#endif
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#include <pthread.h>
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#if ((defined(_LIBOBJC) || defined(_LIBOBJC_WEAK)) \
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|| !defined(_GTHREAD_USE_MUTEX_TIMEDLOCK))
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# include <unistd.h>
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# if defined(_POSIX_TIMEOUTS) && _POSIX_TIMEOUTS >= 0
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# define _GTHREAD_USE_MUTEX_TIMEDLOCK 1
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# else
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# define _GTHREAD_USE_MUTEX_TIMEDLOCK 0
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# endif
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#endif
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typedef pthread_t __gthread_t;
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typedef pthread_key_t __gthread_key_t;
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typedef pthread_once_t __gthread_once_t;
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typedef pthread_mutex_t __gthread_mutex_t;
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typedef pthread_mutex_t __gthread_recursive_mutex_t;
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typedef pthread_cond_t __gthread_cond_t;
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typedef struct timespec __gthread_time_t;
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/* POSIX like conditional variables are supported. Please look at comments
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in gthr.h for details. */
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#define __GTHREAD_HAS_COND 1
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#define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
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#define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT
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#if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER)
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#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER
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#elif defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP)
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#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
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#else
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#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
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#endif
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#define __GTHREAD_COND_INIT PTHREAD_COND_INITIALIZER
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#define __GTHREAD_TIME_INIT {0,0}
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#ifdef _GTHREAD_USE_MUTEX_INIT_FUNC
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# undef __GTHREAD_MUTEX_INIT
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# define __GTHREAD_MUTEX_INIT_FUNCTION __gthread_mutex_init_function
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#endif
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#ifdef _GTHREAD_USE_RECURSIVE_MUTEX_INIT_FUNC
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# undef __GTHREAD_RECURSIVE_MUTEX_INIT
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# undef __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION
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# define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
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#endif
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#ifdef _GTHREAD_USE_COND_INIT_FUNC
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# undef __GTHREAD_COND_INIT
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# define __GTHREAD_COND_INIT_FUNCTION __gthread_cond_init_function
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#endif
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#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
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# ifndef __gthrw_pragma
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# define __gthrw_pragma(pragma)
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# endif
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# define __gthrw2(name,name2,type) \
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static __typeof(type) name __attribute__ ((__weakref__(#name2))); \
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__gthrw_pragma(weak type)
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# define __gthrw_(name) __gthrw_ ## name
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#else
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# define __gthrw2(name,name2,type)
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# define __gthrw_(name) name
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#endif
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/* Typically, __gthrw_foo is a weak reference to symbol foo. */
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#define __gthrw(name) __gthrw2(__gthrw_ ## name,name,name)
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/* On Tru64, /usr/include/pthread.h uses #pragma extern_prefix "__" to
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map a subset of the POSIX pthread API to mangled versions of their
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names. */
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#if defined(__osf__) && defined(_PTHREAD_USE_MANGLED_NAMES_)
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#define __gthrw3(name) __gthrw2(__gthrw_ ## name, __ ## name, name)
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__gthrw3(pthread_once)
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__gthrw3(pthread_getspecific)
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__gthrw3(pthread_setspecific)
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__gthrw3(pthread_create)
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__gthrw3(pthread_join)
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__gthrw3(pthread_detach)
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__gthrw3(pthread_equal)
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__gthrw3(pthread_self)
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__gthrw3(pthread_cancel)
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__gthrw3(sched_yield)
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__gthrw3(pthread_mutex_lock)
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__gthrw3(pthread_mutex_trylock)
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#if _GTHREAD_USE_MUTEX_TIMEDLOCK
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__gthrw3(pthread_mutex_timedlock)
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#endif
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__gthrw3(pthread_mutex_unlock)
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__gthrw3(pthread_mutex_init)
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__gthrw3(pthread_mutex_destroy)
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__gthrw3(pthread_cond_init)
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__gthrw3(pthread_cond_broadcast)
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__gthrw3(pthread_cond_signal)
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__gthrw3(pthread_cond_wait)
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__gthrw3(pthread_cond_timedwait)
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__gthrw3(pthread_cond_destroy)
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#else
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__gthrw(pthread_once)
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__gthrw(pthread_getspecific)
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__gthrw(pthread_setspecific)
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__gthrw(pthread_create)
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__gthrw(pthread_join)
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__gthrw(pthread_equal)
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__gthrw(pthread_self)
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__gthrw(pthread_detach)
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#ifndef __BIONIC__
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__gthrw(pthread_cancel)
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#endif
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__gthrw(sched_yield)
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__gthrw(pthread_mutex_lock)
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__gthrw(pthread_mutex_trylock)
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#if _GTHREAD_USE_MUTEX_TIMEDLOCK
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__gthrw(pthread_mutex_timedlock)
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#endif
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__gthrw(pthread_mutex_unlock)
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__gthrw(pthread_mutex_init)
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__gthrw(pthread_mutex_destroy)
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__gthrw(pthread_cond_init)
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__gthrw(pthread_cond_broadcast)
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__gthrw(pthread_cond_signal)
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__gthrw(pthread_cond_wait)
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__gthrw(pthread_cond_timedwait)
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__gthrw(pthread_cond_destroy)
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#endif
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__gthrw(pthread_key_create)
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__gthrw(pthread_key_delete)
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__gthrw(pthread_mutexattr_init)
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__gthrw(pthread_mutexattr_settype)
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__gthrw(pthread_mutexattr_destroy)
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#if defined(_LIBOBJC) || defined(_LIBOBJC_WEAK)
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/* Objective-C. */
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#if defined(__osf__) && defined(_PTHREAD_USE_MANGLED_NAMES_)
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__gthrw3(pthread_exit)
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#else
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__gthrw(pthread_exit)
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#endif /* __osf__ && _PTHREAD_USE_MANGLED_NAMES_ */
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#ifdef _POSIX_PRIORITY_SCHEDULING
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#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
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__gthrw(sched_get_priority_max)
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__gthrw(sched_get_priority_min)
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#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
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#endif /* _POSIX_PRIORITY_SCHEDULING */
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__gthrw(pthread_attr_destroy)
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__gthrw(pthread_attr_init)
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__gthrw(pthread_attr_setdetachstate)
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#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
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__gthrw(pthread_getschedparam)
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__gthrw(pthread_setschedparam)
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#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
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#endif /* _LIBOBJC || _LIBOBJC_WEAK */
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#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
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/* On Solaris 2.6 up to 9, the libc exposes a POSIX threads interface even if
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-pthreads is not specified. The functions are dummies and most return an
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error value. However pthread_once returns 0 without invoking the routine
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it is passed so we cannot pretend that the interface is active if -pthreads
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is not specified. On Solaris 2.5.1, the interface is not exposed at all so
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we need to play the usual game with weak symbols. On Solaris 10 and up, a
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working interface is always exposed. On FreeBSD 6 and later, libc also
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exposes a dummy POSIX threads interface, similar to what Solaris 2.6 up
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to 9 does. FreeBSD >= 700014 even provides a pthread_cancel stub in libc,
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which means the alternate __gthread_active_p below cannot be used there. */
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#if defined(__FreeBSD__) || (defined(__sun) && defined(__svr4__))
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static volatile int __gthread_active = -1;
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static void
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__gthread_trigger (void)
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{
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__gthread_active = 1;
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}
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static inline int
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__gthread_active_p (void)
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{
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static pthread_mutex_t __gthread_active_mutex = PTHREAD_MUTEX_INITIALIZER;
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static pthread_once_t __gthread_active_once = PTHREAD_ONCE_INIT;
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/* Avoid reading __gthread_active twice on the main code path. */
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int __gthread_active_latest_value = __gthread_active;
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/* This test is not protected to avoid taking a lock on the main code
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path so every update of __gthread_active in a threaded program must
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be atomic with regard to the result of the test. */
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if (__builtin_expect (__gthread_active_latest_value < 0, 0))
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{
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if (__gthrw_(pthread_once))
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{
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/* If this really is a threaded program, then we must ensure that
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__gthread_active has been set to 1 before exiting this block. */
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__gthrw_(pthread_mutex_lock) (&__gthread_active_mutex);
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__gthrw_(pthread_once) (&__gthread_active_once, __gthread_trigger);
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__gthrw_(pthread_mutex_unlock) (&__gthread_active_mutex);
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}
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/* Make sure we'll never enter this block again. */
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if (__gthread_active < 0)
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__gthread_active = 0;
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__gthread_active_latest_value = __gthread_active;
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}
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return __gthread_active_latest_value != 0;
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}
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#else /* neither FreeBSD nor Solaris */
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static inline int
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__gthread_active_p (void)
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{
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/* Android's C library does not provide pthread_cancel, check for
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`pthread_create' instead. */
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#ifndef __BIONIC__
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static void *const __gthread_active_ptr
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= __extension__ (void *) &__gthrw_(pthread_cancel);
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#else
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static void *const __gthread_active_ptr
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= __extension__ (void *) &__gthrw_(pthread_create);
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#endif
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return __gthread_active_ptr != 0;
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}
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#endif /* FreeBSD or Solaris */
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#else /* not SUPPORTS_WEAK */
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/* Similar to Solaris, HP-UX 11 for PA-RISC provides stubs for pthread
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calls in shared flavors of the HP-UX C library. Most of the stubs
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have no functionality. The details are described in the "libc cumulative
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patch" for each subversion of HP-UX 11. There are two special interfaces
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provided for checking whether an application is linked to a shared pthread
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library or not. However, these interfaces aren't available in early
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libpthread libraries. We also need a test that works for archive
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libraries. We can't use pthread_once as some libc versions call the
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init function. We also can't use pthread_create or pthread_attr_init
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as these create a thread and thereby prevent changing the default stack
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size. The function pthread_default_stacksize_np is available in both
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the archive and shared versions of libpthread. It can be used to
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determine the default pthread stack size. There is a stub in some
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shared libc versions which returns a zero size if pthreads are not
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active. We provide an equivalent stub to handle cases where libc
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doesn't provide one. */
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#if defined(__hppa__) && defined(__hpux__)
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static volatile int __gthread_active = -1;
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static inline int
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__gthread_active_p (void)
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{
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/* Avoid reading __gthread_active twice on the main code path. */
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int __gthread_active_latest_value = __gthread_active;
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size_t __s;
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if (__builtin_expect (__gthread_active_latest_value < 0, 0))
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{
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pthread_default_stacksize_np (0, &__s);
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__gthread_active = __s ? 1 : 0;
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__gthread_active_latest_value = __gthread_active;
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}
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return __gthread_active_latest_value != 0;
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}
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#else /* not hppa-hpux */
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static inline int
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__gthread_active_p (void)
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{
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return 1;
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}
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#endif /* hppa-hpux */
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#endif /* SUPPORTS_WEAK */
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#ifdef _LIBOBJC
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/* This is the config.h file in libobjc/ */
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#include <config.h>
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#ifdef HAVE_SCHED_H
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# include <sched.h>
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#endif
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/* Key structure for maintaining thread specific storage */
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static pthread_key_t _objc_thread_storage;
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static pthread_attr_t _objc_thread_attribs;
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/* Thread local storage for a single thread */
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static void *thread_local_storage = NULL;
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/* Backend initialization functions */
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/* Initialize the threads subsystem. */
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static inline int
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__gthread_objc_init_thread_system (void)
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{
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if (__gthread_active_p ())
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{
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/* Initialize the thread storage key. */
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if (__gthrw_(pthread_key_create) (&_objc_thread_storage, NULL) == 0)
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{
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/* The normal default detach state for threads is
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* PTHREAD_CREATE_JOINABLE which causes threads to not die
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* when you think they should. */
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if (__gthrw_(pthread_attr_init) (&_objc_thread_attribs) == 0
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&& __gthrw_(pthread_attr_setdetachstate) (&_objc_thread_attribs,
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PTHREAD_CREATE_DETACHED) == 0)
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return 0;
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}
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}
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return -1;
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}
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/* Close the threads subsystem. */
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static inline int
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__gthread_objc_close_thread_system (void)
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{
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if (__gthread_active_p ()
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&& __gthrw_(pthread_key_delete) (_objc_thread_storage) == 0
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&& __gthrw_(pthread_attr_destroy) (&_objc_thread_attribs) == 0)
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return 0;
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return -1;
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}
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/* Backend thread functions */
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/* Create a new thread of execution. */
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static inline objc_thread_t
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__gthread_objc_thread_detach (void (*func)(void *), void *arg)
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{
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objc_thread_t thread_id;
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pthread_t new_thread_handle;
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if (!__gthread_active_p ())
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return NULL;
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if (!(__gthrw_(pthread_create) (&new_thread_handle, &_objc_thread_attribs,
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(void *) func, arg)))
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thread_id = (objc_thread_t) new_thread_handle;
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else
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thread_id = NULL;
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return thread_id;
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}
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/* Set the current thread's priority. */
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static inline int
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__gthread_objc_thread_set_priority (int priority)
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{
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if (!__gthread_active_p ())
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return -1;
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else
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{
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#ifdef _POSIX_PRIORITY_SCHEDULING
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#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
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pthread_t thread_id = __gthrw_(pthread_self) ();
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int policy;
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struct sched_param params;
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int priority_min, priority_max;
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if (__gthrw_(pthread_getschedparam) (thread_id, &policy, ¶ms) == 0)
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{
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if ((priority_max = __gthrw_(sched_get_priority_max) (policy)) == -1)
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return -1;
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if ((priority_min = __gthrw_(sched_get_priority_min) (policy)) == -1)
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return -1;
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|
|
if (priority > priority_max)
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priority = priority_max;
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else if (priority < priority_min)
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priority = priority_min;
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params.sched_priority = priority;
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|
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/*
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|
* The solaris 7 and several other man pages incorrectly state that
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* this should be a pointer to policy but pthread.h is universally
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* at odds with this.
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*/
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if (__gthrw_(pthread_setschedparam) (thread_id, policy, ¶ms) == 0)
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return 0;
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}
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#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
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#endif /* _POSIX_PRIORITY_SCHEDULING */
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return -1;
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}
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}
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|
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/* Return the current thread's priority. */
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static inline int
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__gthread_objc_thread_get_priority (void)
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{
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#ifdef _POSIX_PRIORITY_SCHEDULING
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#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
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if (__gthread_active_p ())
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{
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int policy;
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struct sched_param params;
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if (__gthrw_(pthread_getschedparam) (__gthrw_(pthread_self) (), &policy, ¶ms) == 0)
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return params.sched_priority;
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else
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return -1;
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}
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else
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#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
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#endif /* _POSIX_PRIORITY_SCHEDULING */
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return OBJC_THREAD_INTERACTIVE_PRIORITY;
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}
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|
|
/* Yield our process time to another thread. */
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|
static inline void
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__gthread_objc_thread_yield (void)
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|
{
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if (__gthread_active_p ())
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__gthrw_(sched_yield) ();
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}
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|
|
/* Terminate the current thread. */
|
|
static inline int
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__gthread_objc_thread_exit (void)
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{
|
|
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);
|
|
}
|
|
|
|
#ifdef _GTHREAD_USE_MUTEX_INIT_FUNC
|
|
static inline void
|
|
__gthread_mutex_init_function (__gthread_mutex_t *__mutex)
|
|
{
|
|
if (__gthread_active_p ())
|
|
__gthrw_(pthread_mutex_init) (__mutex, NULL);
|
|
}
|
|
#endif
|
|
|
|
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);
|
|
}
|
|
|
|
#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_timedwait_recursive (__gthread_cond_t *__cond,
|
|
__gthread_recursive_mutex_t *__mutex,
|
|
const __gthread_time_t *__abs_timeout)
|
|
{
|
|
return __gthread_cond_timedwait (__cond, __mutex, __abs_timeout);
|
|
}
|
|
|
|
static inline int
|
|
__gthread_cond_destroy (__gthread_cond_t* __cond)
|
|
{
|
|
return __gthrw_(pthread_cond_destroy) (__cond);
|
|
}
|
|
|
|
#endif /* _LIBOBJC */
|
|
|
|
#endif /* ! GCC_GTHR_POSIX_H */
|