1 /* This file is automatically generated. DO NOT EDIT! */ 2 /* Generated from: NetBSD: mknative-gcc,v 1.68 2012/09/25 06:55:10 skrll Exp */ 3 /* Generated from: NetBSD: mknative.common,v 1.9 2007/02/05 18:26:01 apb Exp */ 4 5 /* Threads compatibility routines for libgcc2. */ 6 /* Compile this one with gcc. */ 7 /* Copyright (C) 1997, 1998, 2004, 2008, 2009 Free Software Foundation, Inc. 8 9 This file is part of GCC. 10 11 GCC is free software; you can redistribute it and/or modify it under 12 the terms of the GNU General Public License as published by the Free 13 Software Foundation; either version 3, or (at your option) any later 14 version. 15 16 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 17 WARRANTY; without even the implied warranty of MERCHANTABILITY or 18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 19 for more details. 20 21 Under Section 7 of GPL version 3, you are granted additional 22 permissions described in the GCC Runtime Library Exception, version 23 3.1, as published by the Free Software Foundation. 24 25 You should have received a copy of the GNU General Public License and 26 a copy of the GCC Runtime Library Exception along with this program; 27 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 28 <http://www.gnu.org/licenses/>. */ 29 30 #ifndef _GLIBCXX_GCC_GTHR_H 31 #define _GLIBCXX_GCC_GTHR_H 32 33 #ifndef _GLIBCXX_HIDE_EXPORTS 34 #pragma GCC visibility push(default) 35 #endif 36 37 /* If this file is compiled with threads support, it must 38 #define __GTHREADS 1 39 to indicate that threads support is present. Also it has define 40 function 41 int __gthread_active_p () 42 that returns 1 if thread system is active, 0 if not. 43 44 The threads interface must define the following types: 45 __gthread_key_t 46 __gthread_once_t 47 __gthread_mutex_t 48 __gthread_recursive_mutex_t 49 50 The threads interface must define the following macros: 51 52 __GTHREAD_ONCE_INIT 53 to initialize __gthread_once_t 54 __GTHREAD_MUTEX_INIT 55 to initialize __gthread_mutex_t to get a fast 56 non-recursive mutex. 57 __GTHREAD_MUTEX_INIT_FUNCTION 58 some systems can't initialize a mutex without a 59 function call. On such systems, define this to a 60 function which looks like this: 61 void __GTHREAD_MUTEX_INIT_FUNCTION (__gthread_mutex_t *) 62 Don't define __GTHREAD_MUTEX_INIT in this case 63 __GTHREAD_RECURSIVE_MUTEX_INIT 64 __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION 65 as above, but for a recursive mutex. 66 67 The threads interface must define the following static functions: 68 69 int __gthread_once (__gthread_once_t *once, void (*func) ()) 70 71 int __gthread_key_create (__gthread_key_t *keyp, void (*dtor) (void *)) 72 int __gthread_key_delete (__gthread_key_t key) 73 74 void *__gthread_getspecific (__gthread_key_t key) 75 int __gthread_setspecific (__gthread_key_t key, const void *ptr) 76 77 int __gthread_mutex_destroy (__gthread_mutex_t *mutex); 78 79 int __gthread_mutex_lock (__gthread_mutex_t *mutex); 80 int __gthread_mutex_trylock (__gthread_mutex_t *mutex); 81 int __gthread_mutex_unlock (__gthread_mutex_t *mutex); 82 83 int __gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *mutex); 84 int __gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *mutex); 85 int __gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *mutex); 86 87 The following are supported in POSIX threads only. They are required to 88 fix a deadlock in static initialization inside libsupc++. The header file 89 gthr-posix.h defines a symbol __GTHREAD_HAS_COND to signify that these extra 90 features are supported. 91 92 Types: 93 __gthread_cond_t 94 95 Macros: 96 __GTHREAD_COND_INIT 97 __GTHREAD_COND_INIT_FUNCTION 98 99 Interface: 100 int __gthread_cond_broadcast (__gthread_cond_t *cond); 101 int __gthread_cond_wait (__gthread_cond_t *cond, __gthread_mutex_t *mutex); 102 int __gthread_cond_wait_recursive (__gthread_cond_t *cond, 103 __gthread_recursive_mutex_t *mutex); 104 105 All functions returning int should return zero on success or the error 106 number. If the operation is not supported, -1 is returned. 107 108 If the following are also defined, you should 109 #define __GTHREADS_CXX0X 1 110 to enable the c++0x thread library. 111 112 Types: 113 __gthread_t 114 __gthread_time_t 115 116 Interface: 117 int __gthread_create (__gthread_t *thread, void *(*func) (void*), 118 void *args); 119 int __gthread_join (__gthread_t thread, void **value_ptr); 120 int __gthread_detach (__gthread_t thread); 121 int __gthread_equal (__gthread_t t1, __gthread_t t2); 122 __gthread_t __gthread_self (void); 123 int __gthread_yield (void); 124 125 int __gthread_mutex_timedlock (__gthread_mutex_t *m, 126 const __gthread_time_t *abs_timeout); 127 int __gthread_recursive_mutex_timedlock (__gthread_recursive_mutex_t *m, 128 const __gthread_time_t *abs_time); 129 130 int __gthread_cond_signal (__gthread_cond_t *cond); 131 int __gthread_cond_timedwait (__gthread_cond_t *cond, 132 __gthread_mutex_t *mutex, 133 const __gthread_time_t *abs_timeout); 134 int __gthread_cond_timedwait_recursive (__gthread_cond_t *cond, 135 __gthread_recursive_mutex_t *mutex, 136 const __gthread_time_t *abs_time) 137 138 Currently supported threads packages are 139 TPF threads with -D__tpf__ 140 POSIX/Unix98 threads with -D_PTHREADS 141 POSIX/Unix95 threads with -D_PTHREADS95 142 DCE threads with -D_DCE_THREADS 143 Solaris/UI threads with -D_SOLARIS_THREADS 144 145 */ 146 147 /* Check first for thread specific defines. */ 148 #if defined (_GLIBCXX___tpf_GLIBCXX___) 149 #include <bits/gthr-tpf.h> 150 #elif _GLIBCXX__PTHREADS 151 #include <bits/gthr-posix.h> 152 #elif _GLIBCXX__PTHREADS95 153 #include <bits/gthr-posix95.h> 154 #elif _GLIBCXX__DCE_THREADS 155 #include <bits/gthr-dce.h> 156 #elif _GLIBCXX__SOLARIS_THREADS 157 #include <bits/gthr-solaris.h> 158 159 /* Include GTHREAD_FILE if one is defined. */ 160 #elif defined(_GLIBCXX_HAVE_GTHR_DEFAULT) 161 #if __GXX_WEAK__ 162 #ifndef _GLIBCXX_GTHREAD_USE_WEAK 163 #define _GLIBCXX_GTHREAD_USE_WEAK 1 164 #endif 165 #endif 166 #include <bits/gthr-default.h> 167 168 /* Fallback to single thread definitions. */ 169 #else 170 #include <bits/gthr-single.h> 171 #endif 172 173 #ifndef _GLIBCXX_HIDE_EXPORTS 174 #pragma GCC visibility pop 175 #endif 176 177 #endif /* ! _GLIBCXX_GCC_GTHR_H */ 178