629 lines
16 KiB
C
629 lines
16 KiB
C
/* This file is automatically generated. DO NOT EDIT! */
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/* Generated from: NetBSD: mknative-gcc,v 1.45 2009/12/17 15:48:13 uebayasi Exp */
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/* Generated from: NetBSD: mknative.common,v 1.9 2007/02/05 18:26:01 apb Exp */
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/* 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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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 2, 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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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING. If not, write to the Free
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Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301, USA. */
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/* As a special exception, if you link this library with other files,
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some of which are compiled with GCC, to produce an executable,
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this library does not by itself cause the resulting executable
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to be covered by the GNU General Public License.
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This exception does not however invalidate any other reasons why
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the executable file might be covered by the GNU General Public License. */
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#ifndef _GLIBCXX_GCC_GTHR_POSIX_H
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#define _GLIBCXX_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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/* 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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#include <unistd.h>
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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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#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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#if __GXX_WEAK__ && _GLIBCXX_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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# ifdef __clang__
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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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# else
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# define __gthrw2(name,name2,type) \
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extern __typeof(type) name __attribute__ ((__weakref__(#name2))); \
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__gthrw_pragma(weak type)
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# endif
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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_cancel)
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__gthrw3(pthread_mutex_lock)
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__gthrw3(pthread_mutex_trylock)
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__gthrw3(pthread_mutex_unlock)
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__gthrw3(pthread_mutex_init)
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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_cancel)
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__gthrw(pthread_mutex_lock)
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__gthrw(pthread_mutex_trylock)
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__gthrw(pthread_mutex_unlock)
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__gthrw(pthread_mutex_init)
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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_cond_broadcast)
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__gthrw3(pthread_cond_destroy)
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__gthrw3(pthread_cond_init)
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__gthrw3(pthread_cond_signal)
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__gthrw3(pthread_cond_wait)
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__gthrw3(pthread_exit)
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__gthrw3(pthread_mutex_destroy)
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__gthrw3(pthread_self)
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#else
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__gthrw(pthread_cond_broadcast)
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__gthrw(pthread_cond_destroy)
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__gthrw(pthread_cond_init)
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__gthrw(pthread_cond_signal)
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__gthrw(pthread_cond_wait)
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__gthrw(pthread_exit)
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__gthrw(pthread_mutex_destroy)
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__gthrw(pthread_self)
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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(sched_yield)
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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 __GXX_WEAK__ && _GLIBCXX_GTHREAD_USE_WEAK
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static inline int
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__gthread_active_p (void)
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{
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static void *const __gthread_active_ptr
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= __extension__ (void *) &__gthrw_(pthread_cancel);
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return __gthread_active_ptr != 0;
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}
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#else /* not __GXX_WEAK__ */
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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 /* __GXX_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, NULL, (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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* 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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/* 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. */
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static inline int
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__gthread_objc_thread_exit (void)
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{
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if (__gthread_active_p ())
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/* exit the thread */
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__gthrw_(pthread_exit) (&__objc_thread_exit_status);
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/* Failed if we reached here */
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return -1;
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}
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/* Returns an integer value which uniquely describes a thread. */
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static inline objc_thread_t
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__gthread_objc_thread_id (void)
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{
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if (__gthread_active_p ())
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return (objc_thread_t) __gthrw_(pthread_self) ();
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else
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return (objc_thread_t) 1;
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}
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/* Sets the thread's local storage pointer. */
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static inline int
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__gthread_objc_thread_set_data (void *value)
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{
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if (__gthread_active_p ())
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return __gthrw_(pthread_setspecific) (_objc_thread_storage, value);
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else
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{
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thread_local_storage = value;
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return 0;
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}
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}
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|
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/* Returns the thread's local storage pointer. */
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static inline void *
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__gthread_objc_thread_get_data (void)
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{
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if (__gthread_active_p ())
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return __gthrw_(pthread_getspecific) (_objc_thread_storage);
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else
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return thread_local_storage;
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}
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|
|
/* Backend mutex functions */
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|
|
|
/* Allocate a mutex. */
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static inline int
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__gthread_objc_mutex_allocate (objc_mutex_t mutex)
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|
{
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|
if (__gthread_active_p ())
|
|
{
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mutex->backend = objc_malloc (sizeof (pthread_mutex_t));
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|
|
if (__gthrw_(pthread_mutex_init) ((pthread_mutex_t *) mutex->backend, NULL))
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|
{
|
|
objc_free (mutex->backend);
|
|
mutex->backend = NULL;
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Deallocate a mutex. */
|
|
static inline int
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|
__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_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 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;
|
|
}
|
|
|
|
static inline int
|
|
__gthread_mutex_unlock (__gthread_mutex_t *mutex)
|
|
{
|
|
if (__gthread_active_p ())
|
|
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);
|
|
}
|
|
|
|
#endif /* _LIBOBJC */
|
|
|
|
#endif /* ! _GLIBCXX_GCC_GTHR_POSIX_H */
|