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<div class="title">gthr-tpf.h</div> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* Threads compatibility routines for libgcc2 and libobjc.</span>
<a name="l00002"></a>00002 <span class="comment"> Compile this one with gcc.</span>
<a name="l00003"></a>00003 <span class="comment"> Copyright (C) 2004, 2005, 2008, 2009 Free Software Foundation, Inc.</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment">This file is part of GCC.</span>
<a name="l00006"></a>00006 <span class="comment"></span>
<a name="l00007"></a>00007 <span class="comment">GCC is free software; you can redistribute it and/or modify it under</span>
<a name="l00008"></a>00008 <span class="comment">the terms of the GNU General Public License as published by the Free</span>
<a name="l00009"></a>00009 <span class="comment">Software Foundation; either version 3, or (at your option) any later</span>
<a name="l00010"></a>00010 <span class="comment">version.</span>
<a name="l00011"></a>00011 <span class="comment"></span>
<a name="l00012"></a>00012 <span class="comment">GCC is distributed in the hope that it will be useful, but WITHOUT ANY</span>
<a name="l00013"></a>00013 <span class="comment">WARRANTY; without even the implied warranty of MERCHANTABILITY or</span>
<a name="l00014"></a>00014 <span class="comment">FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License</span>
<a name="l00015"></a>00015 <span class="comment">for more details.</span>
<a name="l00016"></a>00016 <span class="comment"></span>
<a name="l00017"></a>00017 <span class="comment">Under Section 7 of GPL version 3, you are granted additional</span>
<a name="l00018"></a>00018 <span class="comment">permissions described in the GCC Runtime Library Exception, version</span>
<a name="l00019"></a>00019 <span class="comment">3.1, as published by the Free Software Foundation.</span>
<a name="l00020"></a>00020 <span class="comment"></span>
<a name="l00021"></a>00021 <span class="comment">You should have received a copy of the GNU General Public License and</span>
<a name="l00022"></a>00022 <span class="comment">a copy of the GCC Runtime Library Exception along with this program;</span>
<a name="l00023"></a>00023 <span class="comment">see the files COPYING3 and COPYING.RUNTIME respectively. If not, see</span>
<a name="l00024"></a>00024 <span class="comment"><http://www.gnu.org/licenses/>. */</span>
<a name="l00025"></a>00025
<a name="l00026"></a>00026 <span class="comment">/* TPF needs its own version of gthr-*.h because TPF always links to</span>
<a name="l00027"></a>00027 <span class="comment"> the thread library. However, for performance reasons we still do not</span>
<a name="l00028"></a>00028 <span class="comment"> want to issue thread api calls unless a check is made to see that we</span>
<a name="l00029"></a>00029 <span class="comment"> are running as a thread. */</span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="preprocessor">#ifndef _GLIBCXX_GCC_GTHR_TPF_H</span>
<a name="l00032"></a>00032 <span class="preprocessor"></span><span class="preprocessor">#define _GLIBCXX_GCC_GTHR_TPF_H</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span>
<a name="l00034"></a>00034 <span class="comment">/* POSIX threads specific definitions.</span>
<a name="l00035"></a>00035 <span class="comment"> Easy, since the interface is just one-to-one mapping. */</span>
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="preprocessor">#define __GTHREADS 1</span>
<a name="l00038"></a>00038 <span class="preprocessor"></span>
<a name="l00039"></a>00039 <span class="comment">/* Some implementations of <pthread.h> require this to be defined. */</span>
<a name="l00040"></a>00040 <span class="preprocessor">#ifndef _REENTRANT</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span><span class="preprocessor">#define _REENTRANT 1</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span>
<a name="l00044"></a>00044 <span class="preprocessor">#include <pthread.h></span>
<a name="l00045"></a>00045 <span class="preprocessor">#include <unistd.h></span>
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="keyword">typedef</span> pthread_key_t __gthread_key_t;
<a name="l00048"></a>00048 <span class="keyword">typedef</span> pthread_once_t __gthread_once_t;
<a name="l00049"></a>00049 <span class="keyword">typedef</span> pthread_mutex_t __gthread_mutex_t;
<a name="l00050"></a>00050 <span class="keyword">typedef</span> pthread_mutex_t __gthread_recursive_mutex_t;
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="preprocessor">#if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER)</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span><span class="preprocessor">#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER</span>
<a name="l00054"></a>00054 <span class="preprocessor"></span><span class="preprocessor">#elif defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP)</span>
<a name="l00055"></a>00055 <span class="preprocessor"></span><span class="preprocessor">#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP</span>
<a name="l00056"></a>00056 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00057"></a>00057 <span class="preprocessor"></span>
<a name="l00058"></a>00058 <span class="preprocessor">#define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER</span>
<a name="l00059"></a>00059 <span class="preprocessor"></span><span class="preprocessor">#define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT</span>
<a name="l00060"></a>00060 <span class="preprocessor"></span><span class="preprocessor">#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function</span>
<a name="l00061"></a>00061 <span class="preprocessor"></span>
<a name="l00062"></a>00062 <span class="preprocessor">#define NOTATHREAD 00</span>
<a name="l00063"></a>00063 <span class="preprocessor"></span><span class="preprocessor">#define ECBBASEPTR (unsigned long int) *(unsigned int *)0x00000514u</span>
<a name="l00064"></a>00064 <span class="preprocessor"></span><span class="preprocessor">#define ECBPG2PTR ECBBASEPTR + 0x1000</span>
<a name="l00065"></a>00065 <span class="preprocessor"></span><span class="preprocessor">#define CE2THRCPTR *((unsigned char *)(ECBPG2PTR + 16))</span>
<a name="l00066"></a>00066 <span class="preprocessor"></span><span class="preprocessor">#define __tpf_pthread_active() (CE2THRCPTR != NOTATHREAD)</span>
<a name="l00067"></a>00067 <span class="preprocessor"></span>
<a name="l00068"></a>00068 <span class="preprocessor">#if __GXX_WEAK__ && _GLIBCXX_GTHREAD_USE_WEAK</span>
<a name="l00069"></a>00069 <span class="preprocessor"></span><span class="preprocessor"># define __gthrw(name) \</span>
<a name="l00070"></a>00070 <span class="preprocessor"> static __typeof(name) __gthrw_ ## name __attribute__ ((__weakref__(#name)));</span>
<a name="l00071"></a>00071 <span class="preprocessor"></span><span class="preprocessor"># define __gthrw_(name) __gthrw_ ## name</span>
<a name="l00072"></a>00072 <span class="preprocessor"></span><span class="preprocessor">#else</span>
<a name="l00073"></a>00073 <span class="preprocessor"></span><span class="preprocessor"># define __gthrw(name)</span>
<a name="l00074"></a>00074 <span class="preprocessor"></span><span class="preprocessor"># define __gthrw_(name) name</span>
<a name="l00075"></a>00075 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00076"></a>00076 <span class="preprocessor"></span>
<a name="l00077"></a>00077 __gthrw(pthread_once)
<a name="l00078"></a>00078 __gthrw(pthread_key_create)
<a name="l00079"></a>00079 __gthrw(pthread_key_delete)
<a name="l00080"></a>00080 __gthrw(pthread_getspecific)
<a name="l00081"></a>00081 __gthrw(pthread_setspecific)
<a name="l00082"></a>00082 __gthrw(pthread_create)
<a name="l00083"></a>00083
<a name="l00084"></a>00084 __gthrw(pthread_mutex_lock)
<a name="l00085"></a>00085 __gthrw(pthread_mutex_trylock)
<a name="l00086"></a>00086 __gthrw(pthread_mutex_unlock)
<a name="l00087"></a>00087 __gthrw(pthread_mutexattr_init)
<a name="l00088"></a>00088 __gthrw(pthread_mutexattr_settype)
<a name="l00089"></a>00089 __gthrw(pthread_mutexattr_destroy)
<a name="l00090"></a>00090 __gthrw(pthread_mutex_init)
<a name="l00091"></a>00091 __gthrw(pthread_mutex_destroy)
<a name="l00092"></a>00092
<a name="l00093"></a>00093 static inline <span class="keywordtype">int</span>
<a name="l00094"></a>00094 __gthread_active_p (<span class="keywordtype">void</span>)
<a name="l00095"></a>00095 {
<a name="l00096"></a>00096 <span class="keywordflow">return</span> 1;
<a name="l00097"></a>00097 }
<a name="l00098"></a>00098
<a name="l00099"></a>00099 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span>
<a name="l00100"></a>00100 __gthread_once (__gthread_once_t *__once, <span class="keywordtype">void</span> (*__func) (<span class="keywordtype">void</span>))
<a name="l00101"></a>00101 {
<a name="l00102"></a>00102 <span class="keywordflow">if</span> (__tpf_pthread_active ())
<a name="l00103"></a>00103 <span class="keywordflow">return</span> __gthrw_(pthread_once) (__once, __func);
<a name="l00104"></a>00104 <span class="keywordflow">else</span>
<a name="l00105"></a>00105 <span class="keywordflow">return</span> -1;
<a name="l00106"></a>00106 }
<a name="l00107"></a>00107
<a name="l00108"></a>00108 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span>
<a name="l00109"></a>00109 __gthread_key_create (__gthread_key_t *__key, <span class="keywordtype">void</span> (*__dtor) (<span class="keywordtype">void</span> *))
<a name="l00110"></a>00110 {
<a name="l00111"></a>00111 <span class="keywordflow">if</span> (__tpf_pthread_active ())
<a name="l00112"></a>00112 <span class="keywordflow">return</span> __gthrw_(pthread_key_create) (__key, __dtor);
<a name="l00113"></a>00113 <span class="keywordflow">else</span>
<a name="l00114"></a>00114 <span class="keywordflow">return</span> -1;
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116
<a name="l00117"></a>00117 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span>
<a name="l00118"></a>00118 __gthread_key_delete (__gthread_key_t __key)
<a name="l00119"></a>00119 {
<a name="l00120"></a>00120 <span class="keywordflow">if</span> (__tpf_pthread_active ())
<a name="l00121"></a>00121 <span class="keywordflow">return</span> __gthrw_(pthread_key_delete) (__key);
<a name="l00122"></a>00122 <span class="keywordflow">else</span>
<a name="l00123"></a>00123 <span class="keywordflow">return</span> -1;
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125
<a name="l00126"></a>00126 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> *
<a name="l00127"></a>00127 __gthread_getspecific (__gthread_key_t __key)
<a name="l00128"></a>00128 {
<a name="l00129"></a>00129 <span class="keywordflow">if</span> (__tpf_pthread_active ())
<a name="l00130"></a>00130 <span class="keywordflow">return</span> __gthrw_(pthread_getspecific) (__key);
<a name="l00131"></a>00131 <span class="keywordflow">else</span>
<a name="l00132"></a>00132 <span class="keywordflow">return</span> NULL;
<a name="l00133"></a>00133 }
<a name="l00134"></a>00134
<a name="l00135"></a>00135 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span>
<a name="l00136"></a>00136 __gthread_setspecific (__gthread_key_t __key, <span class="keyword">const</span> <span class="keywordtype">void</span> *__ptr)
<a name="l00137"></a>00137 {
<a name="l00138"></a>00138 <span class="keywordflow">if</span> (__tpf_pthread_active ())
<a name="l00139"></a>00139 <span class="keywordflow">return</span> __gthrw_(pthread_setspecific) (__key, __ptr);
<a name="l00140"></a>00140 <span class="keywordflow">else</span>
<a name="l00141"></a>00141 <span class="keywordflow">return</span> -1;
<a name="l00142"></a>00142 }
<a name="l00143"></a>00143
<a name="l00144"></a>00144 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span>
<a name="l00145"></a>00145 __gthread_mutex_destroy (__gthread_mutex_t *__mutex)
<a name="l00146"></a>00146 {
<a name="l00147"></a>00147 <span class="keywordflow">if</span> (__tpf_pthread_active ())
<a name="l00148"></a>00148 <span class="keywordflow">return</span> __gthrw_(pthread_mutex_destroy) (__mutex);
<a name="l00149"></a>00149 <span class="keywordflow">else</span>
<a name="l00150"></a>00150 <span class="keywordflow">return</span> 0;
<a name="l00151"></a>00151 }
<a name="l00152"></a>00152
<a name="l00153"></a>00153 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span>
<a name="l00154"></a>00154 __gthread_mutex_lock (__gthread_mutex_t *__mutex)
<a name="l00155"></a>00155 {
<a name="l00156"></a>00156 <span class="keywordflow">if</span> (__tpf_pthread_active ())
<a name="l00157"></a>00157 <span class="keywordflow">return</span> __gthrw_(pthread_mutex_lock) (__mutex);
<a name="l00158"></a>00158 <span class="keywordflow">else</span>
<a name="l00159"></a>00159 <span class="keywordflow">return</span> 0;
<a name="l00160"></a>00160 }
<a name="l00161"></a>00161
<a name="l00162"></a>00162 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span>
<a name="l00163"></a>00163 __gthread_mutex_trylock (__gthread_mutex_t *__mutex)
<a name="l00164"></a>00164 {
<a name="l00165"></a>00165 <span class="keywordflow">if</span> (__tpf_pthread_active ())
<a name="l00166"></a>00166 <span class="keywordflow">return</span> __gthrw_(pthread_mutex_trylock) (__mutex);
<a name="l00167"></a>00167 <span class="keywordflow">else</span>
<a name="l00168"></a>00168 <span class="keywordflow">return</span> 0;
<a name="l00169"></a>00169 }
<a name="l00170"></a>00170
<a name="l00171"></a>00171 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span>
<a name="l00172"></a>00172 __gthread_mutex_unlock (__gthread_mutex_t *__mutex)
<a name="l00173"></a>00173 {
<a name="l00174"></a>00174 <span class="keywordflow">if</span> (__tpf_pthread_active ())
<a name="l00175"></a>00175 <span class="keywordflow">return</span> __gthrw_(pthread_mutex_unlock) (__mutex);
<a name="l00176"></a>00176 <span class="keywordflow">else</span>
<a name="l00177"></a>00177 <span class="keywordflow">return</span> 0;
<a name="l00178"></a>00178 }
<a name="l00179"></a>00179
<a name="l00180"></a>00180 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span>
<a name="l00181"></a>00181 __gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex)
<a name="l00182"></a>00182 {
<a name="l00183"></a>00183 <span class="keywordflow">if</span> (__tpf_pthread_active ())
<a name="l00184"></a>00184 <span class="keywordflow">return</span> __gthread_mutex_lock (__mutex);
<a name="l00185"></a>00185 <span class="keywordflow">else</span>
<a name="l00186"></a>00186 <span class="keywordflow">return</span> 0;
<a name="l00187"></a>00187 }
<a name="l00188"></a>00188
<a name="l00189"></a>00189 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span>
<a name="l00190"></a>00190 __gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex)
<a name="l00191"></a>00191 {
<a name="l00192"></a>00192 <span class="keywordflow">if</span> (__tpf_pthread_active ())
<a name="l00193"></a>00193 <span class="keywordflow">return</span> __gthread_mutex_trylock (__mutex);
<a name="l00194"></a>00194 <span class="keywordflow">else</span>
<a name="l00195"></a>00195 <span class="keywordflow">return</span> 0;
<a name="l00196"></a>00196 }
<a name="l00197"></a>00197
<a name="l00198"></a>00198 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span>
<a name="l00199"></a>00199 __gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex)
<a name="l00200"></a>00200 {
<a name="l00201"></a>00201 <span class="keywordflow">if</span> (__tpf_pthread_active ())
<a name="l00202"></a>00202 <span class="keywordflow">return</span> __gthread_mutex_unlock (__mutex);
<a name="l00203"></a>00203 <span class="keywordflow">else</span>
<a name="l00204"></a>00204 <span class="keywordflow">return</span> 0;
<a name="l00205"></a>00205 }
<a name="l00206"></a>00206
<a name="l00207"></a>00207 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span>
<a name="l00208"></a>00208 __gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex)
<a name="l00209"></a>00209 {
<a name="l00210"></a>00210 <span class="keywordflow">if</span> (__tpf_pthread_active ())
<a name="l00211"></a>00211 {
<a name="l00212"></a>00212 pthread_mutexattr_t __attr;
<a name="l00213"></a>00213 <span class="keywordtype">int</span> __r;
<a name="l00214"></a>00214
<a name="l00215"></a>00215 __r = __gthrw_(pthread_mutexattr_init) (&__attr);
<a name="l00216"></a>00216 <span class="keywordflow">if</span> (!__r)
<a name="l00217"></a>00217 __r = __gthrw_(pthread_mutexattr_settype) (&__attr,
<a name="l00218"></a>00218 PTHREAD_MUTEX_RECURSIVE);
<a name="l00219"></a>00219 <span class="keywordflow">if</span> (!__r)
<a name="l00220"></a>00220 __r = __gthrw_(pthread_mutex_init) (__mutex, &__attr);
<a name="l00221"></a>00221 <span class="keywordflow">if</span> (!__r)
<a name="l00222"></a>00222 __r = __gthrw_(pthread_mutexattr_destroy) (&__attr);
<a name="l00223"></a>00223 <span class="keywordflow">return</span> __r;
<a name="l00224"></a>00224 }
<a name="l00225"></a>00225 <span class="keywordflow">return</span> 0;
<a name="l00226"></a>00226 }
<a name="l00227"></a>00227
<a name="l00228"></a>00228
<a name="l00229"></a>00229 <span class="preprocessor">#endif </span><span class="comment">/* ! _GLIBCXX_GCC_GTHR_TPF_H */</span>
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