Mercurial > hg > CbC > CbC_gcc
annotate gcc/gthr.h @ 67:f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
| author | nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Tue, 22 Mar 2011 17:18:12 +0900 |
| parents | 77e2b8dfacca |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* Threads compatibility routines for libgcc2. */ |
| 2 /* Compile this one with gcc. */ | |
| 3 /* Copyright (C) 1997, 1998, 2004, 2008, 2009 Free Software Foundation, Inc. | |
| 4 | |
| 5 This file is part of GCC. | |
| 6 | |
| 7 GCC is free software; you can redistribute it and/or modify it under | |
| 8 the terms of the GNU General Public License as published by the Free | |
| 9 Software Foundation; either version 3, or (at your option) any later | |
| 10 version. | |
| 11 | |
| 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 Under Section 7 of GPL version 3, you are granted additional | |
| 18 permissions described in the GCC Runtime Library Exception, version | |
| 19 3.1, as published by the Free Software Foundation. | |
| 20 | |
| 21 You should have received a copy of the GNU General Public License and | |
| 22 a copy of the GCC Runtime Library Exception along with this program; | |
| 23 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 24 <http://www.gnu.org/licenses/>. */ | |
| 25 | |
| 26 #ifndef GCC_GTHR_H | |
| 27 #define GCC_GTHR_H | |
| 28 | |
| 29 #ifndef HIDE_EXPORTS | |
| 30 #pragma GCC visibility push(default) | |
| 31 #endif | |
| 32 | |
| 33 /* If this file is compiled with threads support, it must | |
| 34 #define __GTHREADS 1 | |
| 35 to indicate that threads support is present. Also it has define | |
| 36 function | |
| 37 int __gthread_active_p () | |
| 38 that returns 1 if thread system is active, 0 if not. | |
| 39 | |
| 40 The threads interface must define the following types: | |
| 41 __gthread_key_t | |
| 42 __gthread_once_t | |
| 43 __gthread_mutex_t | |
| 44 __gthread_recursive_mutex_t | |
| 45 | |
| 46 The threads interface must define the following macros: | |
| 47 | |
| 48 __GTHREAD_ONCE_INIT | |
| 49 to initialize __gthread_once_t | |
| 50 __GTHREAD_MUTEX_INIT | |
| 51 to initialize __gthread_mutex_t to get a fast | |
| 52 non-recursive mutex. | |
| 53 __GTHREAD_MUTEX_INIT_FUNCTION | |
| 54 some systems can't initialize a mutex without a | |
| 55 function call. On such systems, define this to a | |
| 56 function which looks like this: | |
| 57 void __GTHREAD_MUTEX_INIT_FUNCTION (__gthread_mutex_t *) | |
| 58 Don't define __GTHREAD_MUTEX_INIT in this case | |
| 59 __GTHREAD_RECURSIVE_MUTEX_INIT | |
| 60 __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION | |
| 61 as above, but for a recursive mutex. | |
| 62 | |
| 63 The threads interface must define the following static functions: | |
| 64 | |
| 65 int __gthread_once (__gthread_once_t *once, void (*func) ()) | |
| 66 | |
| 67 int __gthread_key_create (__gthread_key_t *keyp, void (*dtor) (void *)) | |
| 68 int __gthread_key_delete (__gthread_key_t key) | |
| 69 | |
| 70 void *__gthread_getspecific (__gthread_key_t key) | |
| 71 int __gthread_setspecific (__gthread_key_t key, const void *ptr) | |
| 72 | |
| 73 int __gthread_mutex_destroy (__gthread_mutex_t *mutex); | |
| 74 | |
| 75 int __gthread_mutex_lock (__gthread_mutex_t *mutex); | |
| 76 int __gthread_mutex_trylock (__gthread_mutex_t *mutex); | |
| 77 int __gthread_mutex_unlock (__gthread_mutex_t *mutex); | |
| 78 | |
| 79 int __gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *mutex); | |
| 80 int __gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *mutex); | |
| 81 int __gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *mutex); | |
| 82 | |
| 83 The following are supported in POSIX threads only. They are required to | |
| 84 fix a deadlock in static initialization inside libsupc++. The header file | |
| 85 gthr-posix.h defines a symbol __GTHREAD_HAS_COND to signify that these extra | |
| 86 features are supported. | |
| 87 | |
| 88 Types: | |
| 89 __gthread_cond_t | |
| 90 | |
| 91 Macros: | |
| 92 __GTHREAD_COND_INIT | |
| 93 __GTHREAD_COND_INIT_FUNCTION | |
| 94 | |
| 95 Interface: | |
| 96 int __gthread_cond_broadcast (__gthread_cond_t *cond); | |
| 97 int __gthread_cond_wait (__gthread_cond_t *cond, __gthread_mutex_t *mutex); | |
| 98 int __gthread_cond_wait_recursive (__gthread_cond_t *cond, | |
| 99 __gthread_recursive_mutex_t *mutex); | |
| 100 | |
| 101 All functions returning int should return zero on success or the error | |
| 102 number. If the operation is not supported, -1 is returned. | |
| 103 | |
|
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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104 If the following are also defined, you should |
| 0 | 105 #define __GTHREADS_CXX0X 1 |
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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106 to enable the c++0x thread library. |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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107 |
| 0 | 108 Types: |
| 109 __gthread_t | |
| 110 __gthread_time_t | |
| 111 | |
| 112 Interface: | |
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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113 int __gthread_create (__gthread_t *thread, void *(*func) (void*), |
| 0 | 114 void *args); |
| 115 int __gthread_join (__gthread_t thread, void **value_ptr); | |
| 116 int __gthread_detach (__gthread_t thread); | |
| 117 int __gthread_equal (__gthread_t t1, __gthread_t t2); | |
| 118 __gthread_t __gthread_self (void); | |
| 119 int __gthread_yield (void); | |
| 120 | |
| 121 int __gthread_mutex_timedlock (__gthread_mutex_t *m, | |
| 122 const __gthread_time_t *abs_timeout); | |
| 123 int __gthread_recursive_mutex_timedlock (__gthread_recursive_mutex_t *m, | |
| 124 const __gthread_time_t *abs_time); | |
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55
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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125 |
| 0 | 126 int __gthread_cond_signal (__gthread_cond_t *cond); |
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55
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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127 int __gthread_cond_timedwait (__gthread_cond_t *cond, |
| 0 | 128 __gthread_mutex_t *mutex, |
| 129 const __gthread_time_t *abs_timeout); | |
| 130 int __gthread_cond_timedwait_recursive (__gthread_cond_t *cond, | |
| 131 __gthread_recursive_mutex_t *mutex, | |
| 132 const __gthread_time_t *abs_time) | |
| 133 | |
| 134 Currently supported threads packages are | |
| 135 TPF threads with -D__tpf__ | |
| 136 POSIX/Unix98 threads with -D_PTHREADS | |
| 137 POSIX/Unix95 threads with -D_PTHREADS95 | |
| 138 DCE threads with -D_DCE_THREADS | |
| 139 Solaris/UI threads with -D_SOLARIS_THREADS | |
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55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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140 |
| 0 | 141 */ |
| 142 | |
| 143 /* Check first for thread specific defines. */ | |
| 144 #if defined (__tpf__) | |
| 145 #include "gthr-tpf.h" | |
| 146 #elif _PTHREADS | |
| 147 #include "gthr-posix.h" | |
| 148 #elif _PTHREADS95 | |
| 149 #include "gthr-posix95.h" | |
| 150 #elif _DCE_THREADS | |
| 151 #include "gthr-dce.h" | |
| 152 #elif _SOLARIS_THREADS | |
| 153 #include "gthr-solaris.h" | |
| 154 | |
| 155 /* Include GTHREAD_FILE if one is defined. */ | |
| 156 #elif defined(HAVE_GTHR_DEFAULT) | |
| 157 #if SUPPORTS_WEAK | |
| 158 #ifndef GTHREAD_USE_WEAK | |
| 159 #define GTHREAD_USE_WEAK 1 | |
| 160 #endif | |
| 161 #endif | |
| 162 #include "gthr-default.h" | |
| 163 | |
| 164 /* Fallback to single thread definitions. */ | |
| 165 #else | |
| 166 #include "gthr-single.h" | |
| 167 #endif | |
| 168 | |
| 169 #ifndef HIDE_EXPORTS | |
| 170 #pragma GCC visibility pop | |
| 171 #endif | |
| 172 | |
| 173 #endif /* ! GCC_GTHR_H */ |