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<h1>Thread.hpp</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* This file is part of Raul.</span>
<a name="l00002"></a>00002 <span class="comment"> * Copyright (C) 2007-2009 David Robillard <http://drobilla.net></span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * Raul is free software; you can redistribute it and/or modify it under the</span>
<a name="l00005"></a>00005 <span class="comment"> * terms of the GNU General Public License as published by the Free Software</span>
<a name="l00006"></a>00006 <span class="comment"> * Foundation; either version 2 of the License, or (at your option) any later</span>
<a name="l00007"></a>00007 <span class="comment"> * version.</span>
<a name="l00008"></a>00008 <span class="comment"> *</span>
<a name="l00009"></a>00009 <span class="comment"> * Raul is distributed in the hope that it will be useful, but WITHOUT ANY</span>
<a name="l00010"></a>00010 <span class="comment"> * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS</span>
<a name="l00011"></a>00011 <span class="comment"> * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.</span>
<a name="l00012"></a>00012 <span class="comment"> *</span>
<a name="l00013"></a>00013 <span class="comment"> * You should have received a copy of the GNU General Public License along</span>
<a name="l00014"></a>00014 <span class="comment"> * with this program; if not, write to the Free Software Foundation, Inc.,</span>
<a name="l00015"></a>00015 <span class="comment"> * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA</span>
<a name="l00016"></a>00016 <span class="comment"> */</span>
<a name="l00017"></a>00017
<a name="l00018"></a>00018 <span class="preprocessor">#ifndef RAUL_THREAD_HPP</span>
<a name="l00019"></a>00019 <span class="preprocessor"></span><span class="preprocessor">#define RAUL_THREAD_HPP</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include <set></span>
<a name="l00022"></a>00022 <span class="preprocessor">#include <string></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <iostream></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <pthread.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <boost/utility.hpp></span>
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="keyword">namespace </span>Raul {
<a name="l00028"></a>00028
<a name="l00029"></a>00029
<a name="l00039"></a><a class="code" href="classRaul_1_1Thread.html">00039</a> <span class="keyword">class </span><a class="code" href="classRaul_1_1Thread.html" title="Abstract base class for a thread.">Thread</a> : boost::noncopyable
<a name="l00040"></a>00040 {
<a name="l00041"></a>00041 <span class="keyword">public</span>:
<a name="l00042"></a>00042 <span class="keyword">virtual</span> ~<a class="code" href="classRaul_1_1Thread.html" title="Abstract base class for a thread.">Thread</a>() {
<a name="l00043"></a>00043 <a class="code" href="classRaul_1_1Thread.html#a8f084f2013510a4a6da0a46acf2b51e9" title="Stop and terminate the thread.">stop</a>();
<a name="l00044"></a>00044 }
<a name="l00045"></a>00045
<a name="l00046"></a>00046 <span class="keyword">static</span> <a class="code" href="classRaul_1_1Thread.html" title="Abstract base class for a thread.">Thread</a>* create(<span class="keyword">const</span> std::string& name=<span class="stringliteral">""</span>)
<a name="l00047"></a>00047 { <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classRaul_1_1Thread.html" title="Abstract base class for a thread.">Thread</a>(name); }
<a name="l00048"></a>00048
<a name="l00050"></a><a class="code" href="classRaul_1_1Thread.html#a98cdda2888321faf49b7b13ca0b427cc">00050</a> <span class="keyword">static</span> <a class="code" href="classRaul_1_1Thread.html" title="Abstract base class for a thread.">Thread</a>* <a class="code" href="classRaul_1_1Thread.html#a98cdda2888321faf49b7b13ca0b427cc" title="Must be called from thread.">create_for_this_thread</a>(<span class="keyword">const</span> std::string& name=<span class="stringliteral">""</span>)
<a name="l00051"></a>00051 { <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classRaul_1_1Thread.html" title="Abstract base class for a thread.">Thread</a>(pthread_self(), name); }
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <span class="keyword">static</span> <a class="code" href="classRaul_1_1Thread.html" title="Abstract base class for a thread.">Thread</a>& <span class="keyword">get</span>();
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classRaul_1_1Thread.html#a0a028e2064416a518f883fe332e14ef5" title="Launch and start the thread.">start</a>();
<a name="l00056"></a>00056 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classRaul_1_1Thread.html#a8f084f2013510a4a6da0a46acf2b51e9" title="Stop and terminate the thread.">stop</a>();
<a name="l00057"></a>00057
<a name="l00058"></a>00058 <span class="keywordtype">void</span> set_scheduling(<span class="keywordtype">int</span> policy, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> priority);
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="keyword">const</span> std::string& name()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _name; }
<a name="l00061"></a>00061 <span class="keywordtype">void</span> set_name(<span class="keyword">const</span> std::string& name) { _name = name; }
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="keywordtype">bool</span> is_context(<span class="keywordtype">unsigned</span> context)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _contexts.find(context) != _contexts.end(); }
<a name="l00064"></a>00064 <span class="keywordtype">void</span> set_context(<span class="keywordtype">unsigned</span> context) { _contexts.insert(context); }
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="keyword">protected</span>:
<a name="l00067"></a>00067 Thread(<span class="keyword">const</span> std::string& name=<span class="stringliteral">""</span>);
<a name="l00068"></a>00068 Thread(pthread_t thread, <span class="keyword">const</span> std::string& name=<span class="stringliteral">""</span>);
<a name="l00069"></a>00069
<a name="l00078"></a><a class="code" href="classRaul_1_1Thread.html#aab617edef1a42b980c67fe309f86b109">00078</a> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classRaul_1_1Thread.html#aab617edef1a42b980c67fe309f86b109" title="Thread function to execute.">_run</a>() {}
<a name="l00079"></a>00079
<a name="l00080"></a>00080 <span class="keywordtype">bool</span> _exit_flag;
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <span class="keyword">private</span>:
<a name="l00083"></a>00083 <span class="keyword">static</span> <span class="keywordtype">void</span>* _static_run(<span class="keywordtype">void</span>* me);
<a name="l00084"></a>00084
<a name="l00086"></a>00086 <span class="keyword">static</span> <span class="keywordtype">void</span> thread_key_alloc() {
<a name="l00087"></a>00087 pthread_key_create(&_thread_key, NULL);
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089
<a name="l00090"></a>00090 <span class="comment">/* Key for the thread-specific buffer */</span>
<a name="l00091"></a>00091 <span class="keyword">static</span> pthread_key_t _thread_key;
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <span class="comment">/* Once-only initialisation of the key */</span>
<a name="l00094"></a>00094 <span class="keyword">static</span> pthread_once_t _thread_key_once;
<a name="l00095"></a>00095
<a name="l00096"></a>00096 std::set<unsigned> _contexts;
<a name="l00097"></a>00097 std::string _name;
<a name="l00098"></a>00098 <span class="keywordtype">bool</span> _pthread_exists;
<a name="l00099"></a>00099 <span class="keywordtype">bool</span> _own_thread;
<a name="l00100"></a>00100 pthread_t _pthread;
<a name="l00101"></a>00101 };
<a name="l00102"></a>00102
<a name="l00103"></a>00103
<a name="l00104"></a>00104 } <span class="comment">// namespace Raul</span>
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <span class="preprocessor">#endif // RAUL_THREAD_HPP</span>
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