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<title>ParadisEO-PEO: 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">// "thread.cpp"</span>
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<a name="l00002"></a>00002
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<a name="l00003"></a>00003 <span class="comment">// (c) OPAC Team, LIFL, August 2005</span>
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<a name="l00004"></a>00004
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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"> Contact: paradiseo-help@lists.gforge.inria.fr</span>
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<a name="l00007"></a>00007 <span class="comment">*/</span>
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<a name="l00008"></a>00008
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<a name="l00009"></a>00009 <span class="preprocessor">#include <map></span>
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<a name="l00010"></a>00010
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<a name="l00011"></a>00011 <span class="preprocessor">#include "thread.h"</span>
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<a name="l00012"></a>00012
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<a name="l00013"></a>00013 <span class="keyword">static</span> std :: vector <Thread *> threads;
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<a name="l00014"></a>00014
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<a name="l00015"></a>00015 <span class="keywordtype">unsigned</span> num_act = 0;
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<a name="l00016"></a>00016
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<a name="l00017"></a><a class="code" href="classThread.html#95c703fb8f2f27cb64f475a8c940864a">00017</a> <a class="code" href="classThread.html#95c703fb8f2f27cb64f475a8c940864a">Thread :: Thread</a> () {
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<a name="l00018"></a>00018
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<a name="l00019"></a>00019 threads.push_back (<span class="keyword">this</span>);
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<a name="l00020"></a>00020 <a class="code" href="classThread.html#1b155d63bca3096ac4a1d039aea83c7c">act</a> = <span class="keyword">false</span>;
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<a name="l00021"></a>00021 }
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<a name="l00022"></a>00022
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<a name="l00023"></a><a class="code" href="classThread.html#37d9edd3a1a776cbc27dedff949c9726">00023</a> <a class="code" href="classThread.html#37d9edd3a1a776cbc27dedff949c9726">Thread :: ~ Thread</a> () {
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<a name="l00024"></a>00024
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<a name="l00025"></a>00025 <span class="comment">/* Nothing ! */</span>
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<a name="l00026"></a>00026 }
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<a name="l00027"></a>00027
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<a name="l00028"></a>00028 <span class="keyword">extern</span> <span class="keywordtype">int</span> getNodeRank ();
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<a name="l00029"></a>00029
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<a name="l00030"></a><a class="code" href="classThread.html#e197c46f8f62ecce6d2a7fe95bdc5b38">00030</a> <span class="keywordtype">void</span> <a class="code" href="classThread.html#e197c46f8f62ecce6d2a7fe95bdc5b38">Thread :: setActive</a> () {
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<a name="l00031"></a>00031
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<a name="l00032"></a>00032 <span class="keywordflow">if</span> (! <a class="code" href="classThread.html#1b155d63bca3096ac4a1d039aea83c7c">act</a> ) {
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<a name="l00033"></a>00033
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<a name="l00034"></a>00034 <a class="code" href="classThread.html#1b155d63bca3096ac4a1d039aea83c7c">act</a> = <span class="keyword">true</span>;
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<a name="l00035"></a>00035 num_act ++;
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<a name="l00036"></a>00036 <span class="comment">// if (getNodeRank () == 1) </span>
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<a name="l00037"></a>00037 <span class="comment">// printf ("On passe a %d\n", num_act);</span>
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<a name="l00038"></a>00038 }
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<a name="l00039"></a>00039 }
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<a name="l00040"></a>00040
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<a name="l00041"></a><a class="code" href="classThread.html#20632ffe9ddfa2a478afb0c84dc1096b">00041</a> <span class="keywordtype">void</span> <a class="code" href="classThread.html#20632ffe9ddfa2a478afb0c84dc1096b">Thread :: setPassive</a> () {
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<a name="l00042"></a>00042
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<a name="l00043"></a>00043 <span class="keywordflow">if</span> (<a class="code" href="classThread.html#1b155d63bca3096ac4a1d039aea83c7c">act</a>) {
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<a name="l00044"></a>00044
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<a name="l00045"></a>00045 <a class="code" href="classThread.html#1b155d63bca3096ac4a1d039aea83c7c">act</a> = <span class="keyword">false</span>;
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<a name="l00046"></a>00046 num_act --;
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<a name="l00047"></a>00047 <span class="comment">// if (getNodeRank () == 1) </span>
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<a name="l00048"></a>00048 <span class="comment">// printf ("On passe a %d\n", num_act);</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>00051 }
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<a name="l00052"></a>00052
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<a name="l00053"></a>00053 <span class="keywordtype">bool</span> atLeastOneActiveThread () {
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<a name="l00054"></a>00054
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<a name="l00055"></a>00055 <span class="keywordflow">return</span> num_act;
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<a name="l00056"></a>00056 }
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<a name="l00057"></a>00057
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<a name="l00058"></a>00058 <span class="keywordtype">unsigned</span> numberOfActiveThreads () {
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<a name="l00059"></a>00059
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<a name="l00060"></a>00060 <span class="keywordflow">return</span> num_act;
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<a name="l00061"></a>00061 }
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<a name="l00062"></a>00062
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<a name="l00063"></a>00063 <span class="keyword">static</span> <span class="keywordtype">void</span> * launch (<span class="keywordtype">void</span> * __arg) {
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<a name="l00064"></a>00064
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<a name="l00065"></a>00065 <a class="code" href="classThread.html">Thread</a> * thr = (<a class="code" href="classThread.html">Thread</a> *) __arg;
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<a name="l00066"></a>00066 thr -> start ();
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<a name="l00067"></a>00067 <span class="keywordflow">return</span> 0;
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<a name="l00068"></a>00068 }
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<a name="l00069"></a>00069
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<a name="l00070"></a>00070 <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="l00071"></a>00071
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<a name="l00072"></a>00072 pthread_t * ll_thr = <span class="keyword">new</span> pthread_t;
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<a name="l00073"></a>00073 __ll_threads.push_back (ll_thr);
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<a name="l00074"></a>00074 pthread_create (ll_thr, 0, launch, __hl_thread);
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<a name="l00075"></a>00075 }
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<a name="l00076"></a>00076
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<a name="l00077"></a>00077 <span class="keywordtype">void</span> joinThreads (std :: vector <pthread_t *> & __threads) {
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<a name="l00078"></a>00078
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<a name="l00079"></a>00079 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i = 0; i < __threads.size (); i ++)
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<a name="l00080"></a>00080 pthread_join (* __threads [i], 0);
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<a name="l00081"></a>00081 }
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</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu Jun 28 15:51:15 2007 for ParadisEO-PEO 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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