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git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@661 331e1502-861f-0410-8da2-ba01fb791d7f
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<title>ParadisEO-PEOMovingObjects: thread.cpp Source File</title>
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<h1>thread.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* </span>
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<a name="l00002"></a>00002 <span class="comment">* <thread.cpp></span>
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<a name="l00003"></a>00003 <span class="comment">* Copyright (C) DOLPHIN Project-Team, INRIA Futurs, 2006-2007</span>
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<a name="l00004"></a>00004 <span class="comment">* (C) OPAC Team, LIFL, 2002-2007</span>
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<a name="l00005"></a>00005 <span class="comment">*</span>
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<a name="l00006"></a>00006 <span class="comment">* Sebastien Cahon, Alexandru-Adrian Tantar</span>
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<a name="l00007"></a>00007 <span class="comment">*</span>
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<a name="l00008"></a>00008 <span class="comment">* This software is governed by the CeCILL license under French law and</span>
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<a name="l00009"></a>00009 <span class="comment">* abiding by the rules of distribution of free software. You can use,</span>
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<a name="l00010"></a>00010 <span class="comment">* modify and/ or redistribute the software under the terms of the CeCILL</span>
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<a name="l00011"></a>00011 <span class="comment">* license as circulated by CEA, CNRS and INRIA at the following URL</span>
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<a name="l00012"></a>00012 <span class="comment">* "http://www.cecill.info".</span>
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<a name="l00013"></a>00013 <span class="comment">*</span>
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<a name="l00014"></a>00014 <span class="comment">* As a counterpart to the access to the source code and rights to copy,</span>
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<a name="l00015"></a>00015 <span class="comment">* modify and redistribute granted by the license, users are provided only</span>
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<a name="l00016"></a>00016 <span class="comment">* with a limited warranty and the software's author, the holder of the</span>
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<a name="l00017"></a>00017 <span class="comment">* economic rights, and the successive licensors have only limited liability.</span>
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<a name="l00018"></a>00018 <span class="comment">*</span>
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<a name="l00019"></a>00019 <span class="comment">* In this respect, the user's attention is drawn to the risks associated</span>
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<a name="l00020"></a>00020 <span class="comment">* with loading, using, modifying and/or developing or reproducing the</span>
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<a name="l00021"></a>00021 <span class="comment">* software by the user in light of its specific status of free software,</span>
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<a name="l00022"></a>00022 <span class="comment">* that may mean that it is complicated to manipulate, and that also</span>
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<a name="l00023"></a>00023 <span class="comment">* therefore means that it is reserved for developers and experienced</span>
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<a name="l00024"></a>00024 <span class="comment">* professionals having in-depth computer knowledge. Users are therefore</span>
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<a name="l00025"></a>00025 <span class="comment">* encouraged to load and test the software's suitability as regards their</span>
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<a name="l00026"></a>00026 <span class="comment">* requirements in conditions enabling the security of their systems and/or</span>
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<a name="l00027"></a>00027 <span class="comment">* data to be ensured and, more generally, to use and operate it in the</span>
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<a name="l00028"></a>00028 <span class="comment">* same conditions as regards security.</span>
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<a name="l00029"></a>00029 <span class="comment">* The fact that you are presently reading this means that you have had</span>
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<a name="l00030"></a>00030 <span class="comment">* knowledge of the CeCILL license and that you accept its terms.</span>
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<a name="l00031"></a>00031 <span class="comment">*</span>
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<a name="l00032"></a>00032 <span class="comment">* ParadisEO WebSite : http://paradiseo.gforge.inria.fr</span>
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<a name="l00033"></a>00033 <span class="comment">* Contact: paradiseo-help@lists.gforge.inria.fr</span>
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<a name="l00034"></a>00034 <span class="comment">*</span>
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<a name="l00035"></a>00035 <span class="comment">*/</span>
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<a name="l00036"></a>00036
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<a name="l00037"></a>00037 <span class="preprocessor">#include <map></span>
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<a name="l00038"></a>00038
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<a name="l00039"></a>00039 <span class="preprocessor">#include "thread.h"</span>
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<a name="l00040"></a>00040
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<a name="l00041"></a>00041 <span class="keyword">static</span> std :: vector <Thread *> threads;
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<a name="l00042"></a>00042
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<a name="l00043"></a>00043 <span class="keywordtype">unsigned</span> num_act = 0;
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<a name="l00044"></a>00044
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<a name="l00045"></a><a class="code" href="classThread.html#95c703fb8f2f27cb64f475a8c940864a">00045</a> <a class="code" href="classThread.html#95c703fb8f2f27cb64f475a8c940864a">Thread :: Thread</a> () {
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<a name="l00046"></a>00046
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<a name="l00047"></a>00047 threads.push_back (<span class="keyword">this</span>);
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<a name="l00048"></a>00048 <a class="code" href="classThread.html#1b155d63bca3096ac4a1d039aea83c7c">act</a> = <span class="keyword">false</span>;
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<a name="l00049"></a>00049 }
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<a name="l00050"></a>00050
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<a name="l00051"></a><a class="code" href="classThread.html#37d9edd3a1a776cbc27dedff949c9726">00051</a> <a class="code" href="classThread.html#37d9edd3a1a776cbc27dedff949c9726">Thread :: ~ Thread</a> () {
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<a name="l00052"></a>00052
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<a name="l00053"></a>00053 <span class="comment">/* Nothing ! */</span>
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<a name="l00054"></a>00054 }
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<a name="l00055"></a>00055
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<a name="l00056"></a>00056 <span class="keyword">extern</span> <span class="keywordtype">int</span> getNodeRank ();
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<a name="l00057"></a>00057
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<a name="l00058"></a><a class="code" href="classThread.html#e197c46f8f62ecce6d2a7fe95bdc5b38">00058</a> <span class="keywordtype">void</span> <a class="code" href="classThread.html#e197c46f8f62ecce6d2a7fe95bdc5b38">Thread :: setActive</a> () {
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<a name="l00059"></a>00059
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<a name="l00060"></a>00060 <span class="keywordflow">if</span> (! <a class="code" href="classThread.html#1b155d63bca3096ac4a1d039aea83c7c">act</a> ) {
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<a name="l00061"></a>00061
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<a name="l00062"></a>00062 <a class="code" href="classThread.html#1b155d63bca3096ac4a1d039aea83c7c">act</a> = <span class="keyword">true</span>;
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<a name="l00063"></a>00063 num_act ++;
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<a name="l00064"></a>00064 <span class="comment">// if (getNodeRank () == 1) </span>
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<a name="l00065"></a>00065 <span class="comment">// printf ("On passe a %d\n", num_act);</span>
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<a name="l00066"></a>00066 }
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<a name="l00067"></a>00067 }
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<a name="l00068"></a>00068
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<a name="l00069"></a><a class="code" href="classThread.html#20632ffe9ddfa2a478afb0c84dc1096b">00069</a> <span class="keywordtype">void</span> <a class="code" href="classThread.html#20632ffe9ddfa2a478afb0c84dc1096b">Thread :: setPassive</a> () {
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<a name="l00070"></a>00070
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<a name="l00071"></a>00071 <span class="keywordflow">if</span> (<a class="code" href="classThread.html#1b155d63bca3096ac4a1d039aea83c7c">act</a>) {
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<a name="l00072"></a>00072
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<a name="l00073"></a>00073 <a class="code" href="classThread.html#1b155d63bca3096ac4a1d039aea83c7c">act</a> = <span class="keyword">false</span>;
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<a name="l00074"></a>00074 num_act --;
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<a name="l00075"></a>00075 <span class="comment">// if (getNodeRank () == 1) </span>
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<a name="l00076"></a>00076 <span class="comment">// printf ("On passe a %d\n", num_act);</span>
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<a name="l00077"></a>00077
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<a name="l00078"></a>00078 }
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<a name="l00079"></a>00079 }
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<a name="l00080"></a>00080
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<a name="l00081"></a>00081 <span class="keywordtype">bool</span> atLeastOneActiveThread () {
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<a name="l00082"></a>00082
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<a name="l00083"></a>00083 <span class="keywordflow">return</span> num_act;
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<a name="l00084"></a>00084 }
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<a name="l00085"></a>00085
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<a name="l00086"></a>00086 <span class="keywordtype">unsigned</span> numberOfActiveThreads () {
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<a name="l00087"></a>00087
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<a name="l00088"></a>00088 <span class="keywordflow">return</span> num_act;
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<a name="l00089"></a>00089 }
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<a name="l00090"></a>00090
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<a name="l00091"></a>00091 <span class="keyword">static</span> <span class="keywordtype">void</span> * launch (<span class="keywordtype">void</span> * __arg) {
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<a name="l00092"></a>00092
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<a name="l00093"></a>00093 <a class="code" href="classThread.html">Thread</a> * thr = (<a class="code" href="classThread.html">Thread</a> *) __arg;
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<a name="l00094"></a>00094 thr -> start ();
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<a name="l00095"></a>00095 <span class="keywordflow">return</span> 0;
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<a name="l00096"></a>00096 }
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<a name="l00097"></a>00097
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<a name="l00098"></a>00098 <span class="keywordtype">void</span> addThread (<a class="code" href="classThread.html">Thread</a> * __hl_thread, std :: vector <pthread_t *> & __ll_threads) {
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<a name="l00099"></a>00099
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<a name="l00100"></a>00100 pthread_t * ll_thr = <span class="keyword">new</span> pthread_t;
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<a name="l00101"></a>00101 __ll_threads.push_back (ll_thr);
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<a name="l00102"></a>00102 pthread_create (ll_thr, 0, launch, __hl_thread);
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<a name="l00103"></a>00103 }
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<a name="l00104"></a>00104
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<a name="l00105"></a>00105 <span class="keywordtype">void</span> joinThreads (std :: vector <pthread_t *> & __threads) {
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<a name="l00106"></a>00106
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<a name="l00107"></a>00107 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i = 0; i < __threads.size (); i ++)
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<a name="l00108"></a>00108 pthread_join (* __threads [i], 0);
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<a name="l00109"></a>00109 }
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</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Oct 8 11:16:46 2007 for ParadisEO-PEOMovingObjects by
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.7 </small></address>
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