1951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Threads compatibility routines for libgcc2 and libobjc. */ 2951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Compile this one with gcc. */ 3951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Copyright (C) 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 443f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh 2008, 2009, 2010 Free Software Foundation, Inc. 5951a39d68df598db08dfced8b4707755864a0492Ying Wang 6951a39d68df598db08dfced8b4707755864a0492Ying WangThis file is part of GCC. 7951a39d68df598db08dfced8b4707755864a0492Ying Wang 8951a39d68df598db08dfced8b4707755864a0492Ying WangGCC is free software; you can redistribute it and/or modify it under 9951a39d68df598db08dfced8b4707755864a0492Ying Wangthe terms of the GNU General Public License as published by the Free 10951a39d68df598db08dfced8b4707755864a0492Ying WangSoftware Foundation; either version 3, or (at your option) any later 11951a39d68df598db08dfced8b4707755864a0492Ying Wangversion. 12951a39d68df598db08dfced8b4707755864a0492Ying Wang 13951a39d68df598db08dfced8b4707755864a0492Ying WangGCC is distributed in the hope that it will be useful, but WITHOUT ANY 14951a39d68df598db08dfced8b4707755864a0492Ying WangWARRANTY; without even the implied warranty of MERCHANTABILITY or 15951a39d68df598db08dfced8b4707755864a0492Ying WangFITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 16951a39d68df598db08dfced8b4707755864a0492Ying Wangfor more details. 17951a39d68df598db08dfced8b4707755864a0492Ying Wang 18951a39d68df598db08dfced8b4707755864a0492Ying WangUnder Section 7 of GPL version 3, you are granted additional 19951a39d68df598db08dfced8b4707755864a0492Ying Wangpermissions described in the GCC Runtime Library Exception, version 20951a39d68df598db08dfced8b4707755864a0492Ying Wang3.1, as published by the Free Software Foundation. 21951a39d68df598db08dfced8b4707755864a0492Ying Wang 22951a39d68df598db08dfced8b4707755864a0492Ying WangYou should have received a copy of the GNU General Public License and 23951a39d68df598db08dfced8b4707755864a0492Ying Wanga copy of the GCC Runtime Library Exception along with this program; 24951a39d68df598db08dfced8b4707755864a0492Ying Wangsee the files COPYING3 and COPYING.RUNTIME respectively. If not, see 25951a39d68df598db08dfced8b4707755864a0492Ying Wang<http://www.gnu.org/licenses/>. */ 26951a39d68df598db08dfced8b4707755864a0492Ying Wang 27951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifndef _GLIBCXX_GCC_GTHR_POSIX_H 28951a39d68df598db08dfced8b4707755864a0492Ying Wang#define _GLIBCXX_GCC_GTHR_POSIX_H 29951a39d68df598db08dfced8b4707755864a0492Ying Wang 30951a39d68df598db08dfced8b4707755864a0492Ying Wang/* POSIX threads specific definitions. 31951a39d68df598db08dfced8b4707755864a0492Ying Wang Easy, since the interface is just one-to-one mapping. */ 32951a39d68df598db08dfced8b4707755864a0492Ying Wang 33951a39d68df598db08dfced8b4707755864a0492Ying Wang#define __GTHREADS 1 34951a39d68df598db08dfced8b4707755864a0492Ying Wang#define __GTHREADS_CXX0X 1 35951a39d68df598db08dfced8b4707755864a0492Ying Wang 36951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Some implementations of <pthread.h> require this to be defined. */ 37951a39d68df598db08dfced8b4707755864a0492Ying Wang#if !defined(_REENTRANT) && defined(__osf__) 38951a39d68df598db08dfced8b4707755864a0492Ying Wang#define _REENTRANT 1 39951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 40951a39d68df598db08dfced8b4707755864a0492Ying Wang 41951a39d68df598db08dfced8b4707755864a0492Ying Wang/* The following should normally be in a different header file, 42951a39d68df598db08dfced8b4707755864a0492Ying Wang * but I couldn't find the right location. The point of the macro 43951a39d68df598db08dfced8b4707755864a0492Ying Wang * definition below is to prevent libsupc++ and libstdc++ to reference 44951a39d68df598db08dfced8b4707755864a0492Ying Wang * weak symbols in their static C++ constructors. Such code crashes 45951a39d68df598db08dfced8b4707755864a0492Ying Wang * when a shared object linked statically to these libraries is 46951a39d68df598db08dfced8b4707755864a0492Ying Wang * loaded on Android 2.1 (Eclair) and older platform releases, due 47951a39d68df598db08dfced8b4707755864a0492Ying Wang * to a dynamic linker bug. 48951a39d68df598db08dfced8b4707755864a0492Ying Wang */ 49951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef __ANDROID__ 50951a39d68df598db08dfced8b4707755864a0492Ying Wang#undef _GLIBCXX_GTHREAD_USE_WEAK 51951a39d68df598db08dfced8b4707755864a0492Ying Wang#define _GLIBCXX_GTHREAD_USE_WEAK 0 52951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 53951a39d68df598db08dfced8b4707755864a0492Ying Wang 54951a39d68df598db08dfced8b4707755864a0492Ying Wang#include <pthread.h> 55951a39d68df598db08dfced8b4707755864a0492Ying Wang#include <unistd.h> 56951a39d68df598db08dfced8b4707755864a0492Ying Wang 57951a39d68df598db08dfced8b4707755864a0492Ying Wangtypedef pthread_t __gthread_t; 58951a39d68df598db08dfced8b4707755864a0492Ying Wangtypedef pthread_key_t __gthread_key_t; 59951a39d68df598db08dfced8b4707755864a0492Ying Wangtypedef pthread_once_t __gthread_once_t; 60951a39d68df598db08dfced8b4707755864a0492Ying Wangtypedef pthread_mutex_t __gthread_mutex_t; 61951a39d68df598db08dfced8b4707755864a0492Ying Wangtypedef pthread_mutex_t __gthread_recursive_mutex_t; 62951a39d68df598db08dfced8b4707755864a0492Ying Wangtypedef pthread_cond_t __gthread_cond_t; 63951a39d68df598db08dfced8b4707755864a0492Ying Wangtypedef struct timespec __gthread_time_t; 64951a39d68df598db08dfced8b4707755864a0492Ying Wang 65951a39d68df598db08dfced8b4707755864a0492Ying Wang/* POSIX like conditional variables are supported. Please look at comments 66951a39d68df598db08dfced8b4707755864a0492Ying Wang in gthr.h for details. */ 6743f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh#define __GTHREAD_HAS_COND 1 68951a39d68df598db08dfced8b4707755864a0492Ying Wang 69951a39d68df598db08dfced8b4707755864a0492Ying Wang#define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER 70951a39d68df598db08dfced8b4707755864a0492Ying Wang#define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT 71951a39d68df598db08dfced8b4707755864a0492Ying Wang#if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER) 72951a39d68df598db08dfced8b4707755864a0492Ying Wang#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER 73951a39d68df598db08dfced8b4707755864a0492Ying Wang#elif defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP) 74951a39d68df598db08dfced8b4707755864a0492Ying Wang#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP 75951a39d68df598db08dfced8b4707755864a0492Ying Wang#else 76951a39d68df598db08dfced8b4707755864a0492Ying Wang#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function 77951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 78951a39d68df598db08dfced8b4707755864a0492Ying Wang#define __GTHREAD_COND_INIT PTHREAD_COND_INITIALIZER 79951a39d68df598db08dfced8b4707755864a0492Ying Wang#define __GTHREAD_TIME_INIT {0,0} 80951a39d68df598db08dfced8b4707755864a0492Ying Wang 81951a39d68df598db08dfced8b4707755864a0492Ying Wang#if __GXX_WEAK__ && _GLIBCXX_GTHREAD_USE_WEAK 82951a39d68df598db08dfced8b4707755864a0492Ying Wang# ifndef __gthrw_pragma 83951a39d68df598db08dfced8b4707755864a0492Ying Wang# define __gthrw_pragma(pragma) 84951a39d68df598db08dfced8b4707755864a0492Ying Wang# endif 85951a39d68df598db08dfced8b4707755864a0492Ying Wang# define __gthrw2(name,name2,type) \ 86951a39d68df598db08dfced8b4707755864a0492Ying Wang static __typeof(type) name __attribute__ ((__weakref__(#name2))); \ 87951a39d68df598db08dfced8b4707755864a0492Ying Wang __gthrw_pragma(weak type) 88951a39d68df598db08dfced8b4707755864a0492Ying Wang# define __gthrw_(name) __gthrw_ ## name 89951a39d68df598db08dfced8b4707755864a0492Ying Wang#else 90951a39d68df598db08dfced8b4707755864a0492Ying Wang# define __gthrw2(name,name2,type) 91951a39d68df598db08dfced8b4707755864a0492Ying Wang# define __gthrw_(name) name 92951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 93951a39d68df598db08dfced8b4707755864a0492Ying Wang 94951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Typically, __gthrw_foo is a weak reference to symbol foo. */ 95951a39d68df598db08dfced8b4707755864a0492Ying Wang#define __gthrw(name) __gthrw2(__gthrw_ ## name,name,name) 96951a39d68df598db08dfced8b4707755864a0492Ying Wang 97951a39d68df598db08dfced8b4707755864a0492Ying Wang/* On Tru64, /usr/include/pthread.h uses #pragma extern_prefix "__" to 98951a39d68df598db08dfced8b4707755864a0492Ying Wang map a subset of the POSIX pthread API to mangled versions of their 99951a39d68df598db08dfced8b4707755864a0492Ying Wang names. */ 100951a39d68df598db08dfced8b4707755864a0492Ying Wang#if defined(__osf__) && defined(_PTHREAD_USE_MANGLED_NAMES_) 101951a39d68df598db08dfced8b4707755864a0492Ying Wang#define __gthrw3(name) __gthrw2(__gthrw_ ## name, __ ## name, name) 102951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_once) 103951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_getspecific) 104951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_setspecific) 105951a39d68df598db08dfced8b4707755864a0492Ying Wang 106951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_create) 107951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_join) 108951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_detach) 109951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_equal) 110951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_self) 111951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_cancel) 112951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(sched_yield) 113951a39d68df598db08dfced8b4707755864a0492Ying Wang 114951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_mutex_lock) 115951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_mutex_trylock) 116951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef _POSIX_TIMEOUTS 117951a39d68df598db08dfced8b4707755864a0492Ying Wang#if _POSIX_TIMEOUTS >= 0 118951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_mutex_timedlock) 119951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 120951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* _POSIX_TIMEOUTS */ 121951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_mutex_unlock) 122951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_mutex_init) 123951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_mutex_destroy) 124951a39d68df598db08dfced8b4707755864a0492Ying Wang 125951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_cond_broadcast) 126951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_cond_signal) 127951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_cond_wait) 128951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_cond_timedwait) 129951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_cond_destroy) 130951a39d68df598db08dfced8b4707755864a0492Ying Wang#else 131951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_once) 132951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_getspecific) 133951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_setspecific) 134951a39d68df598db08dfced8b4707755864a0492Ying Wang 135951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_create) 136951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_join) 137951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_equal) 138951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_self) 139951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_detach) 140951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifndef __BIONIC__ 141951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_cancel) 142951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 143951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(sched_yield) 144951a39d68df598db08dfced8b4707755864a0492Ying Wang 145951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_mutex_lock) 146951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_mutex_trylock) 147951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef _POSIX_TIMEOUTS 148951a39d68df598db08dfced8b4707755864a0492Ying Wang#if _POSIX_TIMEOUTS >= 0 149951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_mutex_timedlock) 150951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 151951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* _POSIX_TIMEOUTS */ 152951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_mutex_unlock) 153951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_mutex_init) 154951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_mutex_destroy) 155951a39d68df598db08dfced8b4707755864a0492Ying Wang 156951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_cond_broadcast) 157951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_cond_signal) 158951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_cond_wait) 159951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_cond_timedwait) 160951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_cond_destroy) 161951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 162951a39d68df598db08dfced8b4707755864a0492Ying Wang 163951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_key_create) 164951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_key_delete) 165951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_mutexattr_init) 166951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_mutexattr_settype) 167951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_mutexattr_destroy) 168951a39d68df598db08dfced8b4707755864a0492Ying Wang 169951a39d68df598db08dfced8b4707755864a0492Ying Wang 170951a39d68df598db08dfced8b4707755864a0492Ying Wang#if defined(_LIBOBJC) || defined(_LIBOBJC_WEAK) 171951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Objective-C. */ 172951a39d68df598db08dfced8b4707755864a0492Ying Wang#if defined(__osf__) && defined(_PTHREAD_USE_MANGLED_NAMES_) 173951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_cond_init) 174951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw3(pthread_exit) 175951a39d68df598db08dfced8b4707755864a0492Ying Wang#else 176951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_cond_init) 177951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_exit) 178951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* __osf__ && _PTHREAD_USE_MANGLED_NAMES_ */ 179951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef _POSIX_PRIORITY_SCHEDULING 180951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING 181951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(sched_get_priority_max) 182951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(sched_get_priority_min) 183951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ 184951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* _POSIX_PRIORITY_SCHEDULING */ 185951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_attr_destroy) 186951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_attr_init) 187951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_attr_setdetachstate) 188951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING 189951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_getschedparam) 190951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthrw(pthread_setschedparam) 191951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ 192951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* _LIBOBJC || _LIBOBJC_WEAK */ 193951a39d68df598db08dfced8b4707755864a0492Ying Wang 194951a39d68df598db08dfced8b4707755864a0492Ying Wang#if __GXX_WEAK__ && _GLIBCXX_GTHREAD_USE_WEAK 195951a39d68df598db08dfced8b4707755864a0492Ying Wang 196951a39d68df598db08dfced8b4707755864a0492Ying Wang/* On Solaris 2.6 up to 9, the libc exposes a POSIX threads interface even if 197951a39d68df598db08dfced8b4707755864a0492Ying Wang -pthreads is not specified. The functions are dummies and most return an 198951a39d68df598db08dfced8b4707755864a0492Ying Wang error value. However pthread_once returns 0 without invoking the routine 199951a39d68df598db08dfced8b4707755864a0492Ying Wang it is passed so we cannot pretend that the interface is active if -pthreads 200951a39d68df598db08dfced8b4707755864a0492Ying Wang is not specified. On Solaris 2.5.1, the interface is not exposed at all so 201951a39d68df598db08dfced8b4707755864a0492Ying Wang we need to play the usual game with weak symbols. On Solaris 10 and up, a 202951a39d68df598db08dfced8b4707755864a0492Ying Wang working interface is always exposed. On FreeBSD 6 and later, libc also 203951a39d68df598db08dfced8b4707755864a0492Ying Wang exposes a dummy POSIX threads interface, similar to what Solaris 2.6 up 204951a39d68df598db08dfced8b4707755864a0492Ying Wang to 9 does. FreeBSD >= 700014 even provides a pthread_cancel stub in libc, 205951a39d68df598db08dfced8b4707755864a0492Ying Wang which means the alternate __gthread_active_p below cannot be used there. */ 206951a39d68df598db08dfced8b4707755864a0492Ying Wang 207951a39d68df598db08dfced8b4707755864a0492Ying Wang#if defined(__FreeBSD__) || (defined(__sun) && defined(__svr4__)) 208951a39d68df598db08dfced8b4707755864a0492Ying Wang 209951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic volatile int __gthread_active = -1; 210951a39d68df598db08dfced8b4707755864a0492Ying Wang 211951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic void 212951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_trigger (void) 213951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 214951a39d68df598db08dfced8b4707755864a0492Ying Wang __gthread_active = 1; 215951a39d68df598db08dfced8b4707755864a0492Ying Wang} 216951a39d68df598db08dfced8b4707755864a0492Ying Wang 217951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 218951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_active_p (void) 219951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 220951a39d68df598db08dfced8b4707755864a0492Ying Wang static pthread_mutex_t __gthread_active_mutex = PTHREAD_MUTEX_INITIALIZER; 221951a39d68df598db08dfced8b4707755864a0492Ying Wang static pthread_once_t __gthread_active_once = PTHREAD_ONCE_INIT; 222951a39d68df598db08dfced8b4707755864a0492Ying Wang 223951a39d68df598db08dfced8b4707755864a0492Ying Wang /* Avoid reading __gthread_active twice on the main code path. */ 224951a39d68df598db08dfced8b4707755864a0492Ying Wang int __gthread_active_latest_value = __gthread_active; 225951a39d68df598db08dfced8b4707755864a0492Ying Wang 226951a39d68df598db08dfced8b4707755864a0492Ying Wang /* This test is not protected to avoid taking a lock on the main code 227951a39d68df598db08dfced8b4707755864a0492Ying Wang path so every update of __gthread_active in a threaded program must 228951a39d68df598db08dfced8b4707755864a0492Ying Wang be atomic with regard to the result of the test. */ 229951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__builtin_expect (__gthread_active_latest_value < 0, 0)) 230951a39d68df598db08dfced8b4707755864a0492Ying Wang { 231951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthrw_(pthread_once)) 232951a39d68df598db08dfced8b4707755864a0492Ying Wang { 233951a39d68df598db08dfced8b4707755864a0492Ying Wang /* If this really is a threaded program, then we must ensure that 234951a39d68df598db08dfced8b4707755864a0492Ying Wang __gthread_active has been set to 1 before exiting this block. */ 235951a39d68df598db08dfced8b4707755864a0492Ying Wang __gthrw_(pthread_mutex_lock) (&__gthread_active_mutex); 236951a39d68df598db08dfced8b4707755864a0492Ying Wang __gthrw_(pthread_once) (&__gthread_active_once, __gthread_trigger); 237951a39d68df598db08dfced8b4707755864a0492Ying Wang __gthrw_(pthread_mutex_unlock) (&__gthread_active_mutex); 238951a39d68df598db08dfced8b4707755864a0492Ying Wang } 239951a39d68df598db08dfced8b4707755864a0492Ying Wang 240951a39d68df598db08dfced8b4707755864a0492Ying Wang /* Make sure we'll never enter this block again. */ 241951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active < 0) 242951a39d68df598db08dfced8b4707755864a0492Ying Wang __gthread_active = 0; 243951a39d68df598db08dfced8b4707755864a0492Ying Wang 244951a39d68df598db08dfced8b4707755864a0492Ying Wang __gthread_active_latest_value = __gthread_active; 245951a39d68df598db08dfced8b4707755864a0492Ying Wang } 246951a39d68df598db08dfced8b4707755864a0492Ying Wang 247951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthread_active_latest_value != 0; 248951a39d68df598db08dfced8b4707755864a0492Ying Wang} 249951a39d68df598db08dfced8b4707755864a0492Ying Wang 250951a39d68df598db08dfced8b4707755864a0492Ying Wang#else /* neither FreeBSD nor Solaris */ 251951a39d68df598db08dfced8b4707755864a0492Ying Wang 252951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 253951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_active_p (void) 254951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 255951a39d68df598db08dfced8b4707755864a0492Ying Wang static void *const __gthread_active_ptr 256951a39d68df598db08dfced8b4707755864a0492Ying Wang = __extension__ (void *) &__gthrw_( 257951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Android's C library does not provide pthread_cancel, check for 258951a39d68df598db08dfced8b4707755864a0492Ying Wang `pthread_create' instead. */ 259951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifndef __BIONIC__ 26043f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh pthread_cancel 261951a39d68df598db08dfced8b4707755864a0492Ying Wang#else 26243f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh pthread_create 263951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 26443f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh ); 265951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthread_active_ptr != 0; 266951a39d68df598db08dfced8b4707755864a0492Ying Wang} 267951a39d68df598db08dfced8b4707755864a0492Ying Wang 268951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* FreeBSD or Solaris */ 269951a39d68df598db08dfced8b4707755864a0492Ying Wang 270951a39d68df598db08dfced8b4707755864a0492Ying Wang#else /* not __GXX_WEAK__ */ 271951a39d68df598db08dfced8b4707755864a0492Ying Wang 272951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Similar to Solaris, HP-UX 11 for PA-RISC provides stubs for pthread 273951a39d68df598db08dfced8b4707755864a0492Ying Wang calls in shared flavors of the HP-UX C library. Most of the stubs 274951a39d68df598db08dfced8b4707755864a0492Ying Wang have no functionality. The details are described in the "libc cumulative 275951a39d68df598db08dfced8b4707755864a0492Ying Wang patch" for each subversion of HP-UX 11. There are two special interfaces 27643f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh provided for checking whether an application is linked to a shared pthread 277951a39d68df598db08dfced8b4707755864a0492Ying Wang library or not. However, these interfaces aren't available in early 27843f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh libpthread libraries. We also need a test that works for archive 27943f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh libraries. We can't use pthread_once as some libc versions call the 28043f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh init function. We also can't use pthread_create or pthread_attr_init 28143f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh as these create a thread and thereby prevent changing the default stack 28243f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh size. The function pthread_default_stacksize_np is available in both 28343f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh the archive and shared versions of libpthread. It can be used to 28443f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh determine the default pthread stack size. There is a stub in some 28543f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh shared libc versions which returns a zero size if pthreads are not 28643f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh active. We provide an equivalent stub to handle cases where libc 28743f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh doesn't provide one. */ 288951a39d68df598db08dfced8b4707755864a0492Ying Wang 289951a39d68df598db08dfced8b4707755864a0492Ying Wang#if defined(__hppa__) && defined(__hpux__) 290951a39d68df598db08dfced8b4707755864a0492Ying Wang 291951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic volatile int __gthread_active = -1; 292951a39d68df598db08dfced8b4707755864a0492Ying Wang 293951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 294951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_active_p (void) 295951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 296951a39d68df598db08dfced8b4707755864a0492Ying Wang /* Avoid reading __gthread_active twice on the main code path. */ 297951a39d68df598db08dfced8b4707755864a0492Ying Wang int __gthread_active_latest_value = __gthread_active; 29843f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh size_t __s; 299951a39d68df598db08dfced8b4707755864a0492Ying Wang 300951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__builtin_expect (__gthread_active_latest_value < 0, 0)) 301951a39d68df598db08dfced8b4707755864a0492Ying Wang { 30243f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh pthread_default_stacksize_np (0, &__s); 30343f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh __gthread_active = __s ? 1 : 0; 304951a39d68df598db08dfced8b4707755864a0492Ying Wang __gthread_active_latest_value = __gthread_active; 305951a39d68df598db08dfced8b4707755864a0492Ying Wang } 306951a39d68df598db08dfced8b4707755864a0492Ying Wang 307951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthread_active_latest_value != 0; 308951a39d68df598db08dfced8b4707755864a0492Ying Wang} 309951a39d68df598db08dfced8b4707755864a0492Ying Wang 310951a39d68df598db08dfced8b4707755864a0492Ying Wang#else /* not hppa-hpux */ 311951a39d68df598db08dfced8b4707755864a0492Ying Wang 312951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 313951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_active_p (void) 314951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 315951a39d68df598db08dfced8b4707755864a0492Ying Wang return 1; 316951a39d68df598db08dfced8b4707755864a0492Ying Wang} 317951a39d68df598db08dfced8b4707755864a0492Ying Wang 318951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* hppa-hpux */ 319951a39d68df598db08dfced8b4707755864a0492Ying Wang 320951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* __GXX_WEAK__ */ 321951a39d68df598db08dfced8b4707755864a0492Ying Wang 322951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef _LIBOBJC 323951a39d68df598db08dfced8b4707755864a0492Ying Wang 324951a39d68df598db08dfced8b4707755864a0492Ying Wang/* This is the config.h file in libobjc/ */ 325951a39d68df598db08dfced8b4707755864a0492Ying Wang#include <config.h> 326951a39d68df598db08dfced8b4707755864a0492Ying Wang 327951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef HAVE_SCHED_H 328951a39d68df598db08dfced8b4707755864a0492Ying Wang# include <sched.h> 329951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 330951a39d68df598db08dfced8b4707755864a0492Ying Wang 331951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Key structure for maintaining thread specific storage */ 332951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic pthread_key_t _objc_thread_storage; 333951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic pthread_attr_t _objc_thread_attribs; 334951a39d68df598db08dfced8b4707755864a0492Ying Wang 335951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Thread local storage for a single thread */ 336951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic void *thread_local_storage = NULL; 337951a39d68df598db08dfced8b4707755864a0492Ying Wang 338951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Backend initialization functions */ 339951a39d68df598db08dfced8b4707755864a0492Ying Wang 340951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Initialize the threads subsystem. */ 341951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 342951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_init_thread_system (void) 343951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 344951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 345951a39d68df598db08dfced8b4707755864a0492Ying Wang { 346951a39d68df598db08dfced8b4707755864a0492Ying Wang /* Initialize the thread storage key. */ 347951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthrw_(pthread_key_create) (&_objc_thread_storage, NULL) == 0) 348951a39d68df598db08dfced8b4707755864a0492Ying Wang { 349951a39d68df598db08dfced8b4707755864a0492Ying Wang /* The normal default detach state for threads is 350951a39d68df598db08dfced8b4707755864a0492Ying Wang * PTHREAD_CREATE_JOINABLE which causes threads to not die 351951a39d68df598db08dfced8b4707755864a0492Ying Wang * when you think they should. */ 352951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthrw_(pthread_attr_init) (&_objc_thread_attribs) == 0 353951a39d68df598db08dfced8b4707755864a0492Ying Wang && __gthrw_(pthread_attr_setdetachstate) (&_objc_thread_attribs, 354951a39d68df598db08dfced8b4707755864a0492Ying Wang PTHREAD_CREATE_DETACHED) == 0) 355951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 356951a39d68df598db08dfced8b4707755864a0492Ying Wang } 357951a39d68df598db08dfced8b4707755864a0492Ying Wang } 358951a39d68df598db08dfced8b4707755864a0492Ying Wang 359951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 360951a39d68df598db08dfced8b4707755864a0492Ying Wang} 361951a39d68df598db08dfced8b4707755864a0492Ying Wang 362951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Close the threads subsystem. */ 363951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 364951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_close_thread_system (void) 365951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 366951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p () 367951a39d68df598db08dfced8b4707755864a0492Ying Wang && __gthrw_(pthread_key_delete) (_objc_thread_storage) == 0 368951a39d68df598db08dfced8b4707755864a0492Ying Wang && __gthrw_(pthread_attr_destroy) (&_objc_thread_attribs) == 0) 369951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 370951a39d68df598db08dfced8b4707755864a0492Ying Wang 371951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 372951a39d68df598db08dfced8b4707755864a0492Ying Wang} 373951a39d68df598db08dfced8b4707755864a0492Ying Wang 374951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Backend thread functions */ 375951a39d68df598db08dfced8b4707755864a0492Ying Wang 376951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Create a new thread of execution. */ 377951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline objc_thread_t 378951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_thread_detach (void (*func)(void *), void *arg) 379951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 380951a39d68df598db08dfced8b4707755864a0492Ying Wang objc_thread_t thread_id; 381951a39d68df598db08dfced8b4707755864a0492Ying Wang pthread_t new_thread_handle; 382951a39d68df598db08dfced8b4707755864a0492Ying Wang 383951a39d68df598db08dfced8b4707755864a0492Ying Wang if (!__gthread_active_p ()) 384951a39d68df598db08dfced8b4707755864a0492Ying Wang return NULL; 385951a39d68df598db08dfced8b4707755864a0492Ying Wang 38643f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh if (!(__gthrw_(pthread_create) (&new_thread_handle, &_objc_thread_attribs, 38743f272afd56a57640c62c952f9266478bacf0244Andrew Hsieh (void *) func, arg))) 388951a39d68df598db08dfced8b4707755864a0492Ying Wang thread_id = (objc_thread_t) new_thread_handle; 389951a39d68df598db08dfced8b4707755864a0492Ying Wang else 390951a39d68df598db08dfced8b4707755864a0492Ying Wang thread_id = NULL; 391951a39d68df598db08dfced8b4707755864a0492Ying Wang 392951a39d68df598db08dfced8b4707755864a0492Ying Wang return thread_id; 393951a39d68df598db08dfced8b4707755864a0492Ying Wang} 394951a39d68df598db08dfced8b4707755864a0492Ying Wang 395951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Set the current thread's priority. */ 396951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 397951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_thread_set_priority (int priority) 398951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 399951a39d68df598db08dfced8b4707755864a0492Ying Wang if (!__gthread_active_p ()) 400951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 401951a39d68df598db08dfced8b4707755864a0492Ying Wang else 402951a39d68df598db08dfced8b4707755864a0492Ying Wang { 403951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef _POSIX_PRIORITY_SCHEDULING 404951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING 405951a39d68df598db08dfced8b4707755864a0492Ying Wang pthread_t thread_id = __gthrw_(pthread_self) (); 406951a39d68df598db08dfced8b4707755864a0492Ying Wang int policy; 407951a39d68df598db08dfced8b4707755864a0492Ying Wang struct sched_param params; 408951a39d68df598db08dfced8b4707755864a0492Ying Wang int priority_min, priority_max; 409951a39d68df598db08dfced8b4707755864a0492Ying Wang 410951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthrw_(pthread_getschedparam) (thread_id, &policy, ¶ms) == 0) 411951a39d68df598db08dfced8b4707755864a0492Ying Wang { 412951a39d68df598db08dfced8b4707755864a0492Ying Wang if ((priority_max = __gthrw_(sched_get_priority_max) (policy)) == -1) 413951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 414951a39d68df598db08dfced8b4707755864a0492Ying Wang 415951a39d68df598db08dfced8b4707755864a0492Ying Wang if ((priority_min = __gthrw_(sched_get_priority_min) (policy)) == -1) 416951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 417951a39d68df598db08dfced8b4707755864a0492Ying Wang 418951a39d68df598db08dfced8b4707755864a0492Ying Wang if (priority > priority_max) 419951a39d68df598db08dfced8b4707755864a0492Ying Wang priority = priority_max; 420951a39d68df598db08dfced8b4707755864a0492Ying Wang else if (priority < priority_min) 421951a39d68df598db08dfced8b4707755864a0492Ying Wang priority = priority_min; 422951a39d68df598db08dfced8b4707755864a0492Ying Wang params.sched_priority = priority; 423951a39d68df598db08dfced8b4707755864a0492Ying Wang 424951a39d68df598db08dfced8b4707755864a0492Ying Wang /* 425951a39d68df598db08dfced8b4707755864a0492Ying Wang * The solaris 7 and several other man pages incorrectly state that 426951a39d68df598db08dfced8b4707755864a0492Ying Wang * this should be a pointer to policy but pthread.h is universally 427951a39d68df598db08dfced8b4707755864a0492Ying Wang * at odds with this. 428951a39d68df598db08dfced8b4707755864a0492Ying Wang */ 429951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthrw_(pthread_setschedparam) (thread_id, policy, ¶ms) == 0) 430951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 431951a39d68df598db08dfced8b4707755864a0492Ying Wang } 432951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ 433951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* _POSIX_PRIORITY_SCHEDULING */ 434951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 435951a39d68df598db08dfced8b4707755864a0492Ying Wang } 436951a39d68df598db08dfced8b4707755864a0492Ying Wang} 437951a39d68df598db08dfced8b4707755864a0492Ying Wang 438951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Return the current thread's priority. */ 439951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 440951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_thread_get_priority (void) 441951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 442951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef _POSIX_PRIORITY_SCHEDULING 443951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING 444951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 445951a39d68df598db08dfced8b4707755864a0492Ying Wang { 446951a39d68df598db08dfced8b4707755864a0492Ying Wang int policy; 447951a39d68df598db08dfced8b4707755864a0492Ying Wang struct sched_param params; 448951a39d68df598db08dfced8b4707755864a0492Ying Wang 449951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthrw_(pthread_getschedparam) (__gthrw_(pthread_self) (), &policy, ¶ms) == 0) 450951a39d68df598db08dfced8b4707755864a0492Ying Wang return params.sched_priority; 451951a39d68df598db08dfced8b4707755864a0492Ying Wang else 452951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 453951a39d68df598db08dfced8b4707755864a0492Ying Wang } 454951a39d68df598db08dfced8b4707755864a0492Ying Wang else 455951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ 456951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* _POSIX_PRIORITY_SCHEDULING */ 457951a39d68df598db08dfced8b4707755864a0492Ying Wang return OBJC_THREAD_INTERACTIVE_PRIORITY; 458951a39d68df598db08dfced8b4707755864a0492Ying Wang} 459951a39d68df598db08dfced8b4707755864a0492Ying Wang 460951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Yield our process time to another thread. */ 461951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline void 462951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_thread_yield (void) 463951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 464951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 465951a39d68df598db08dfced8b4707755864a0492Ying Wang __gthrw_(sched_yield) (); 466951a39d68df598db08dfced8b4707755864a0492Ying Wang} 467951a39d68df598db08dfced8b4707755864a0492Ying Wang 468951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Terminate the current thread. */ 469951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 470951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_thread_exit (void) 471951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 472951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 473951a39d68df598db08dfced8b4707755864a0492Ying Wang /* exit the thread */ 474951a39d68df598db08dfced8b4707755864a0492Ying Wang __gthrw_(pthread_exit) (&__objc_thread_exit_status); 475951a39d68df598db08dfced8b4707755864a0492Ying Wang 476951a39d68df598db08dfced8b4707755864a0492Ying Wang /* Failed if we reached here */ 477951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 478951a39d68df598db08dfced8b4707755864a0492Ying Wang} 479951a39d68df598db08dfced8b4707755864a0492Ying Wang 480951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Returns an integer value which uniquely describes a thread. */ 481951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline objc_thread_t 482951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_thread_id (void) 483951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 484951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 485951a39d68df598db08dfced8b4707755864a0492Ying Wang return (objc_thread_t) __gthrw_(pthread_self) (); 486951a39d68df598db08dfced8b4707755864a0492Ying Wang else 487951a39d68df598db08dfced8b4707755864a0492Ying Wang return (objc_thread_t) 1; 488951a39d68df598db08dfced8b4707755864a0492Ying Wang} 489951a39d68df598db08dfced8b4707755864a0492Ying Wang 490951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Sets the thread's local storage pointer. */ 491951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 492951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_thread_set_data (void *value) 493951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 494951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 495951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_setspecific) (_objc_thread_storage, value); 496951a39d68df598db08dfced8b4707755864a0492Ying Wang else 497951a39d68df598db08dfced8b4707755864a0492Ying Wang { 498951a39d68df598db08dfced8b4707755864a0492Ying Wang thread_local_storage = value; 499951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 500951a39d68df598db08dfced8b4707755864a0492Ying Wang } 501951a39d68df598db08dfced8b4707755864a0492Ying Wang} 502951a39d68df598db08dfced8b4707755864a0492Ying Wang 503951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Returns the thread's local storage pointer. */ 504951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline void * 505951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_thread_get_data (void) 506951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 507951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 508951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_getspecific) (_objc_thread_storage); 509951a39d68df598db08dfced8b4707755864a0492Ying Wang else 510951a39d68df598db08dfced8b4707755864a0492Ying Wang return thread_local_storage; 511951a39d68df598db08dfced8b4707755864a0492Ying Wang} 512951a39d68df598db08dfced8b4707755864a0492Ying Wang 513951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Backend mutex functions */ 514951a39d68df598db08dfced8b4707755864a0492Ying Wang 515951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Allocate a mutex. */ 516951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 517951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_mutex_allocate (objc_mutex_t mutex) 518951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 519951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 520951a39d68df598db08dfced8b4707755864a0492Ying Wang { 521951a39d68df598db08dfced8b4707755864a0492Ying Wang mutex->backend = objc_malloc (sizeof (pthread_mutex_t)); 522951a39d68df598db08dfced8b4707755864a0492Ying Wang 523951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthrw_(pthread_mutex_init) ((pthread_mutex_t *) mutex->backend, NULL)) 524951a39d68df598db08dfced8b4707755864a0492Ying Wang { 525951a39d68df598db08dfced8b4707755864a0492Ying Wang objc_free (mutex->backend); 526951a39d68df598db08dfced8b4707755864a0492Ying Wang mutex->backend = NULL; 527951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 528951a39d68df598db08dfced8b4707755864a0492Ying Wang } 529951a39d68df598db08dfced8b4707755864a0492Ying Wang } 530951a39d68df598db08dfced8b4707755864a0492Ying Wang 531951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 532951a39d68df598db08dfced8b4707755864a0492Ying Wang} 533951a39d68df598db08dfced8b4707755864a0492Ying Wang 534951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Deallocate a mutex. */ 535951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 536951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_mutex_deallocate (objc_mutex_t mutex) 537951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 538951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 539951a39d68df598db08dfced8b4707755864a0492Ying Wang { 540951a39d68df598db08dfced8b4707755864a0492Ying Wang int count; 541951a39d68df598db08dfced8b4707755864a0492Ying Wang 542951a39d68df598db08dfced8b4707755864a0492Ying Wang /* 543951a39d68df598db08dfced8b4707755864a0492Ying Wang * Posix Threads specifically require that the thread be unlocked 544951a39d68df598db08dfced8b4707755864a0492Ying Wang * for __gthrw_(pthread_mutex_destroy) to work. 545951a39d68df598db08dfced8b4707755864a0492Ying Wang */ 546951a39d68df598db08dfced8b4707755864a0492Ying Wang 547951a39d68df598db08dfced8b4707755864a0492Ying Wang do 548951a39d68df598db08dfced8b4707755864a0492Ying Wang { 549951a39d68df598db08dfced8b4707755864a0492Ying Wang count = __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend); 550951a39d68df598db08dfced8b4707755864a0492Ying Wang if (count < 0) 551951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 552951a39d68df598db08dfced8b4707755864a0492Ying Wang } 553951a39d68df598db08dfced8b4707755864a0492Ying Wang while (count); 554951a39d68df598db08dfced8b4707755864a0492Ying Wang 555951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthrw_(pthread_mutex_destroy) ((pthread_mutex_t *) mutex->backend)) 556951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 557951a39d68df598db08dfced8b4707755864a0492Ying Wang 558951a39d68df598db08dfced8b4707755864a0492Ying Wang objc_free (mutex->backend); 559951a39d68df598db08dfced8b4707755864a0492Ying Wang mutex->backend = NULL; 560951a39d68df598db08dfced8b4707755864a0492Ying Wang } 561951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 562951a39d68df598db08dfced8b4707755864a0492Ying Wang} 563951a39d68df598db08dfced8b4707755864a0492Ying Wang 564951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Grab a lock on a mutex. */ 565951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 566951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_mutex_lock (objc_mutex_t mutex) 567951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 568951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p () 569951a39d68df598db08dfced8b4707755864a0492Ying Wang && __gthrw_(pthread_mutex_lock) ((pthread_mutex_t *) mutex->backend) != 0) 570951a39d68df598db08dfced8b4707755864a0492Ying Wang { 571951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 572951a39d68df598db08dfced8b4707755864a0492Ying Wang } 573951a39d68df598db08dfced8b4707755864a0492Ying Wang 574951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 575951a39d68df598db08dfced8b4707755864a0492Ying Wang} 576951a39d68df598db08dfced8b4707755864a0492Ying Wang 577951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Try to grab a lock on a mutex. */ 578951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 579951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_mutex_trylock (objc_mutex_t mutex) 580951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 581951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p () 582951a39d68df598db08dfced8b4707755864a0492Ying Wang && __gthrw_(pthread_mutex_trylock) ((pthread_mutex_t *) mutex->backend) != 0) 583951a39d68df598db08dfced8b4707755864a0492Ying Wang { 584951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 585951a39d68df598db08dfced8b4707755864a0492Ying Wang } 586951a39d68df598db08dfced8b4707755864a0492Ying Wang 587951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 588951a39d68df598db08dfced8b4707755864a0492Ying Wang} 589951a39d68df598db08dfced8b4707755864a0492Ying Wang 590951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Unlock the mutex */ 591951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 592951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_mutex_unlock (objc_mutex_t mutex) 593951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 594951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p () 595951a39d68df598db08dfced8b4707755864a0492Ying Wang && __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend) != 0) 596951a39d68df598db08dfced8b4707755864a0492Ying Wang { 597951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 598951a39d68df598db08dfced8b4707755864a0492Ying Wang } 599951a39d68df598db08dfced8b4707755864a0492Ying Wang 600951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 601951a39d68df598db08dfced8b4707755864a0492Ying Wang} 602951a39d68df598db08dfced8b4707755864a0492Ying Wang 603951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Backend condition mutex functions */ 604951a39d68df598db08dfced8b4707755864a0492Ying Wang 605951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Allocate a condition. */ 606951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 607951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_condition_allocate (objc_condition_t condition) 608951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 609951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 610951a39d68df598db08dfced8b4707755864a0492Ying Wang { 611951a39d68df598db08dfced8b4707755864a0492Ying Wang condition->backend = objc_malloc (sizeof (pthread_cond_t)); 612951a39d68df598db08dfced8b4707755864a0492Ying Wang 613951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthrw_(pthread_cond_init) ((pthread_cond_t *) condition->backend, NULL)) 614951a39d68df598db08dfced8b4707755864a0492Ying Wang { 615951a39d68df598db08dfced8b4707755864a0492Ying Wang objc_free (condition->backend); 616951a39d68df598db08dfced8b4707755864a0492Ying Wang condition->backend = NULL; 617951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 618951a39d68df598db08dfced8b4707755864a0492Ying Wang } 619951a39d68df598db08dfced8b4707755864a0492Ying Wang } 620951a39d68df598db08dfced8b4707755864a0492Ying Wang 621951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 622951a39d68df598db08dfced8b4707755864a0492Ying Wang} 623951a39d68df598db08dfced8b4707755864a0492Ying Wang 624951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Deallocate a condition. */ 625951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 626951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_condition_deallocate (objc_condition_t condition) 627951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 628951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 629951a39d68df598db08dfced8b4707755864a0492Ying Wang { 630951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthrw_(pthread_cond_destroy) ((pthread_cond_t *) condition->backend)) 631951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 632951a39d68df598db08dfced8b4707755864a0492Ying Wang 633951a39d68df598db08dfced8b4707755864a0492Ying Wang objc_free (condition->backend); 634951a39d68df598db08dfced8b4707755864a0492Ying Wang condition->backend = NULL; 635951a39d68df598db08dfced8b4707755864a0492Ying Wang } 636951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 637951a39d68df598db08dfced8b4707755864a0492Ying Wang} 638951a39d68df598db08dfced8b4707755864a0492Ying Wang 639951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Wait on the condition */ 640951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 641951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex) 642951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 643951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 644951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_cond_wait) ((pthread_cond_t *) condition->backend, 645951a39d68df598db08dfced8b4707755864a0492Ying Wang (pthread_mutex_t *) mutex->backend); 646951a39d68df598db08dfced8b4707755864a0492Ying Wang else 647951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 648951a39d68df598db08dfced8b4707755864a0492Ying Wang} 649951a39d68df598db08dfced8b4707755864a0492Ying Wang 650951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Wake up all threads waiting on this condition. */ 651951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 652951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_condition_broadcast (objc_condition_t condition) 653951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 654951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 655951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_cond_broadcast) ((pthread_cond_t *) condition->backend); 656951a39d68df598db08dfced8b4707755864a0492Ying Wang else 657951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 658951a39d68df598db08dfced8b4707755864a0492Ying Wang} 659951a39d68df598db08dfced8b4707755864a0492Ying Wang 660951a39d68df598db08dfced8b4707755864a0492Ying Wang/* Wake up one thread waiting on this condition. */ 661951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 662951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_objc_condition_signal (objc_condition_t condition) 663951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 664951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 665951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_cond_signal) ((pthread_cond_t *) condition->backend); 666951a39d68df598db08dfced8b4707755864a0492Ying Wang else 667951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 668951a39d68df598db08dfced8b4707755864a0492Ying Wang} 669951a39d68df598db08dfced8b4707755864a0492Ying Wang 670951a39d68df598db08dfced8b4707755864a0492Ying Wang#else /* _LIBOBJC */ 671951a39d68df598db08dfced8b4707755864a0492Ying Wang 672951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 673951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_create (__gthread_t *__threadid, void *(*__func) (void*), 674951a39d68df598db08dfced8b4707755864a0492Ying Wang void *__args) 675951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 676951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_create) (__threadid, NULL, __func, __args); 677951a39d68df598db08dfced8b4707755864a0492Ying Wang} 678951a39d68df598db08dfced8b4707755864a0492Ying Wang 679951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 680951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_join (__gthread_t __threadid, void **__value_ptr) 681951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 682951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_join) (__threadid, __value_ptr); 683951a39d68df598db08dfced8b4707755864a0492Ying Wang} 684951a39d68df598db08dfced8b4707755864a0492Ying Wang 685951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 686951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_detach (__gthread_t __threadid) 687951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 688951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_detach) (__threadid); 689951a39d68df598db08dfced8b4707755864a0492Ying Wang} 690951a39d68df598db08dfced8b4707755864a0492Ying Wang 691951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 692951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_equal (__gthread_t __t1, __gthread_t __t2) 693951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 694951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_equal) (__t1, __t2); 695951a39d68df598db08dfced8b4707755864a0492Ying Wang} 696951a39d68df598db08dfced8b4707755864a0492Ying Wang 697951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline __gthread_t 698951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_self (void) 699951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 700951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_self) (); 701951a39d68df598db08dfced8b4707755864a0492Ying Wang} 702951a39d68df598db08dfced8b4707755864a0492Ying Wang 703951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 704951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_yield (void) 705951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 706951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(sched_yield) (); 707951a39d68df598db08dfced8b4707755864a0492Ying Wang} 708951a39d68df598db08dfced8b4707755864a0492Ying Wang 709951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 710951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_once (__gthread_once_t *__once, void (*__func) (void)) 711951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 712951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 713951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_once) (__once, __func); 714951a39d68df598db08dfced8b4707755864a0492Ying Wang else 715951a39d68df598db08dfced8b4707755864a0492Ying Wang return -1; 716951a39d68df598db08dfced8b4707755864a0492Ying Wang} 717951a39d68df598db08dfced8b4707755864a0492Ying Wang 718951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 719951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *)) 720951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 721951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_key_create) (__key, __dtor); 722951a39d68df598db08dfced8b4707755864a0492Ying Wang} 723951a39d68df598db08dfced8b4707755864a0492Ying Wang 724951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 725951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_key_delete (__gthread_key_t __key) 726951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 727951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_key_delete) (__key); 728951a39d68df598db08dfced8b4707755864a0492Ying Wang} 729951a39d68df598db08dfced8b4707755864a0492Ying Wang 730951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline void * 731951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_getspecific (__gthread_key_t __key) 732951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 733951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_getspecific) (__key); 734951a39d68df598db08dfced8b4707755864a0492Ying Wang} 735951a39d68df598db08dfced8b4707755864a0492Ying Wang 736951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 737951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_setspecific (__gthread_key_t __key, const void *__ptr) 738951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 739951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_setspecific) (__key, __ptr); 740951a39d68df598db08dfced8b4707755864a0492Ying Wang} 741951a39d68df598db08dfced8b4707755864a0492Ying Wang 742951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 743951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_mutex_destroy (__gthread_mutex_t *__mutex) 744951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 745951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 746951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_mutex_destroy) (__mutex); 747951a39d68df598db08dfced8b4707755864a0492Ying Wang else 748951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 749951a39d68df598db08dfced8b4707755864a0492Ying Wang} 750951a39d68df598db08dfced8b4707755864a0492Ying Wang 751951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 752951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_mutex_lock (__gthread_mutex_t *__mutex) 753951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 754951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 755951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_mutex_lock) (__mutex); 756951a39d68df598db08dfced8b4707755864a0492Ying Wang else 757951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 758951a39d68df598db08dfced8b4707755864a0492Ying Wang} 759951a39d68df598db08dfced8b4707755864a0492Ying Wang 760951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 761951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_mutex_trylock (__gthread_mutex_t *__mutex) 762951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 763951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 764951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_mutex_trylock) (__mutex); 765951a39d68df598db08dfced8b4707755864a0492Ying Wang else 766951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 767951a39d68df598db08dfced8b4707755864a0492Ying Wang} 768951a39d68df598db08dfced8b4707755864a0492Ying Wang 769951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef _POSIX_TIMEOUTS 770951a39d68df598db08dfced8b4707755864a0492Ying Wang#if _POSIX_TIMEOUTS >= 0 771951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 772951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_mutex_timedlock (__gthread_mutex_t *__mutex, 773951a39d68df598db08dfced8b4707755864a0492Ying Wang const __gthread_time_t *__abs_timeout) 774951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 775951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 776951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_mutex_timedlock) (__mutex, __abs_timeout); 777951a39d68df598db08dfced8b4707755864a0492Ying Wang else 778951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 779951a39d68df598db08dfced8b4707755864a0492Ying Wang} 780951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 781951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 782951a39d68df598db08dfced8b4707755864a0492Ying Wang 783951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 784951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_mutex_unlock (__gthread_mutex_t *__mutex) 785951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 786951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 787951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_mutex_unlock) (__mutex); 788951a39d68df598db08dfced8b4707755864a0492Ying Wang else 789951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 790951a39d68df598db08dfced8b4707755864a0492Ying Wang} 791951a39d68df598db08dfced8b4707755864a0492Ying Wang 792951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifndef PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP 793951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 794951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex) 795951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 796951a39d68df598db08dfced8b4707755864a0492Ying Wang if (__gthread_active_p ()) 797951a39d68df598db08dfced8b4707755864a0492Ying Wang { 798951a39d68df598db08dfced8b4707755864a0492Ying Wang pthread_mutexattr_t __attr; 799951a39d68df598db08dfced8b4707755864a0492Ying Wang int __r; 800951a39d68df598db08dfced8b4707755864a0492Ying Wang 801951a39d68df598db08dfced8b4707755864a0492Ying Wang __r = __gthrw_(pthread_mutexattr_init) (&__attr); 802951a39d68df598db08dfced8b4707755864a0492Ying Wang if (!__r) 803951a39d68df598db08dfced8b4707755864a0492Ying Wang __r = __gthrw_(pthread_mutexattr_settype) (&__attr, 804951a39d68df598db08dfced8b4707755864a0492Ying Wang PTHREAD_MUTEX_RECURSIVE); 805951a39d68df598db08dfced8b4707755864a0492Ying Wang if (!__r) 806951a39d68df598db08dfced8b4707755864a0492Ying Wang __r = __gthrw_(pthread_mutex_init) (__mutex, &__attr); 807951a39d68df598db08dfced8b4707755864a0492Ying Wang if (!__r) 808951a39d68df598db08dfced8b4707755864a0492Ying Wang __r = __gthrw_(pthread_mutexattr_destroy) (&__attr); 809951a39d68df598db08dfced8b4707755864a0492Ying Wang return __r; 810951a39d68df598db08dfced8b4707755864a0492Ying Wang } 811951a39d68df598db08dfced8b4707755864a0492Ying Wang return 0; 812951a39d68df598db08dfced8b4707755864a0492Ying Wang} 813951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 814951a39d68df598db08dfced8b4707755864a0492Ying Wang 815951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 816951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex) 817951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 818951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthread_mutex_lock (__mutex); 819951a39d68df598db08dfced8b4707755864a0492Ying Wang} 820951a39d68df598db08dfced8b4707755864a0492Ying Wang 821951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 822951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex) 823951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 824951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthread_mutex_trylock (__mutex); 825951a39d68df598db08dfced8b4707755864a0492Ying Wang} 826951a39d68df598db08dfced8b4707755864a0492Ying Wang 827951a39d68df598db08dfced8b4707755864a0492Ying Wang#ifdef _POSIX_TIMEOUTS 828951a39d68df598db08dfced8b4707755864a0492Ying Wang#if _POSIX_TIMEOUTS >= 0 829951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 830951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_recursive_mutex_timedlock (__gthread_recursive_mutex_t *__mutex, 831951a39d68df598db08dfced8b4707755864a0492Ying Wang const __gthread_time_t *__abs_timeout) 832951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 833951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthread_mutex_timedlock (__mutex, __abs_timeout); 834951a39d68df598db08dfced8b4707755864a0492Ying Wang} 835951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 836951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif 837951a39d68df598db08dfced8b4707755864a0492Ying Wang 838951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 839951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex) 840951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 841951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthread_mutex_unlock (__mutex); 842951a39d68df598db08dfced8b4707755864a0492Ying Wang} 843951a39d68df598db08dfced8b4707755864a0492Ying Wang 844951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 845951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_cond_broadcast (__gthread_cond_t *__cond) 846951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 847951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_cond_broadcast) (__cond); 848951a39d68df598db08dfced8b4707755864a0492Ying Wang} 849951a39d68df598db08dfced8b4707755864a0492Ying Wang 850951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 851951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_cond_signal (__gthread_cond_t *__cond) 852951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 853951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_cond_signal) (__cond); 854951a39d68df598db08dfced8b4707755864a0492Ying Wang} 855951a39d68df598db08dfced8b4707755864a0492Ying Wang 856951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 857951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_cond_wait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex) 858951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 859951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_cond_wait) (__cond, __mutex); 860951a39d68df598db08dfced8b4707755864a0492Ying Wang} 861951a39d68df598db08dfced8b4707755864a0492Ying Wang 862951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 863951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_cond_timedwait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex, 864951a39d68df598db08dfced8b4707755864a0492Ying Wang const __gthread_time_t *__abs_timeout) 865951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 866951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_cond_timedwait) (__cond, __mutex, __abs_timeout); 867951a39d68df598db08dfced8b4707755864a0492Ying Wang} 868951a39d68df598db08dfced8b4707755864a0492Ying Wang 869951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 870951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_cond_wait_recursive (__gthread_cond_t *__cond, 871951a39d68df598db08dfced8b4707755864a0492Ying Wang __gthread_recursive_mutex_t *__mutex) 872951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 873951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthread_cond_wait (__cond, __mutex); 874951a39d68df598db08dfced8b4707755864a0492Ying Wang} 875951a39d68df598db08dfced8b4707755864a0492Ying Wang 876951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 877951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_cond_timedwait_recursive (__gthread_cond_t *__cond, 878951a39d68df598db08dfced8b4707755864a0492Ying Wang __gthread_recursive_mutex_t *__mutex, 879951a39d68df598db08dfced8b4707755864a0492Ying Wang const __gthread_time_t *__abs_timeout) 880951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 881951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthread_cond_timedwait (__cond, __mutex, __abs_timeout); 882951a39d68df598db08dfced8b4707755864a0492Ying Wang} 883951a39d68df598db08dfced8b4707755864a0492Ying Wang 884951a39d68df598db08dfced8b4707755864a0492Ying Wangstatic inline int 885951a39d68df598db08dfced8b4707755864a0492Ying Wang__gthread_cond_destroy (__gthread_cond_t* __cond) 886951a39d68df598db08dfced8b4707755864a0492Ying Wang{ 887951a39d68df598db08dfced8b4707755864a0492Ying Wang return __gthrw_(pthread_cond_destroy) (__cond); 888951a39d68df598db08dfced8b4707755864a0492Ying Wang} 889951a39d68df598db08dfced8b4707755864a0492Ying Wang 890951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* _LIBOBJC */ 891951a39d68df598db08dfced8b4707755864a0492Ying Wang 892951a39d68df598db08dfced8b4707755864a0492Ying Wang#endif /* ! _GLIBCXX_GCC_GTHR_POSIX_H */ 893