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<div class="navpath"><a class="el" href="dir_a9003438d6daff57482a26b22b6121a1.html">src</a> » <a class="el" href="dir_348ef16cf184025134029522e7f02883.html">C++</a>
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<h1>Mutex.h</h1><a href="_mutex_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- C++ -*- */</span>
<a name="l00002"></a>00002
<a name="l00003"></a>00003 <span class="comment">/****************************************************************************</span>
<a name="l00004"></a>00004 <span class="comment">** Copyright (c) quickfixengine.org All rights reserved.</span>
<a name="l00005"></a>00005 <span class="comment">**</span>
<a name="l00006"></a>00006 <span class="comment">** This file is part of the QuickFIX FIX Engine</span>
<a name="l00007"></a>00007 <span class="comment">**</span>
<a name="l00008"></a>00008 <span class="comment">** This file may be distributed under the terms of the quickfixengine.org</span>
<a name="l00009"></a>00009 <span class="comment">** license as defined by quickfixengine.org and appearing in the file</span>
<a name="l00010"></a>00010 <span class="comment">** LICENSE included in the packaging of this file.</span>
<a name="l00011"></a>00011 <span class="comment">**</span>
<a name="l00012"></a>00012 <span class="comment">** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE</span>
<a name="l00013"></a>00013 <span class="comment">** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.</span>
<a name="l00014"></a>00014 <span class="comment">**</span>
<a name="l00015"></a>00015 <span class="comment">** See http://www.quickfixengine.org/LICENSE for licensing information.</span>
<a name="l00016"></a>00016 <span class="comment">**</span>
<a name="l00017"></a>00017 <span class="comment">** Contact ask@quickfixengine.org if any conditions of this licensing are</span>
<a name="l00018"></a>00018 <span class="comment">** not clear to you.</span>
<a name="l00019"></a>00019 <span class="comment">**</span>
<a name="l00020"></a>00020 <span class="comment">****************************************************************************/</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#ifndef FIX_MUTEX_H</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#define FIX_MUTEX_H</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include "<a class="code" href="_utility_8h.html">Utility.h</a>"</span>
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="keyword">namespace </span>FIX
<a name="l00028"></a>00028 {
<a name="l00030"></a><a class="code" href="class_f_i_x_1_1_mutex.html">00030</a> <span class="keyword">class </span><a class="code" href="class_f_i_x_1_1_mutex.html" title="Portable implementation of a mutex.">Mutex</a>
<a name="l00031"></a>00031 {
<a name="l00032"></a>00032 <span class="keyword">public</span>:
<a name="l00033"></a><a class="code" href="class_f_i_x_1_1_mutex.html#a7b62326e9852a3a802048a067e8ba097">00033</a> <a class="code" href="class_f_i_x_1_1_mutex.html#a7b62326e9852a3a802048a067e8ba097">Mutex</a>()
<a name="l00034"></a>00034 {
<a name="l00035"></a>00035 <span class="preprocessor">#ifdef _MSC_VER</span>
<a name="l00036"></a>00036 <span class="preprocessor"></span> InitializeCriticalSection( &<a class="code" href="class_f_i_x_1_1_mutex.html#a1a1cd2a1eef5e46432fdd9ce134047b3">m_mutex</a> );
<a name="l00037"></a>00037 <span class="preprocessor">#else</span>
<a name="l00038"></a>00038 <span class="preprocessor"></span> <a class="code" href="class_f_i_x_1_1_mutex.html#a61ae89c4f7503c2d82a65f128f92a4f4">m_count</a> = 0;
<a name="l00039"></a>00039 <a class="code" href="class_f_i_x_1_1_mutex.html#af8cc8b59e2bdc1c89ffbc7ee32bfbd34">m_threadID</a> = 0;
<a name="l00040"></a>00040 <span class="comment">//pthread_mutexattr_t attr;</span>
<a name="l00041"></a>00041 <span class="comment">//pthread_mutexattr_init(&attr);</span>
<a name="l00042"></a>00042 <span class="comment">//pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);</span>
<a name="l00043"></a>00043 <span class="comment">//pthread_mutex_init(&m_mutex, &attr);</span>
<a name="l00044"></a>00044 pthread_mutex_init( &<a class="code" href="class_f_i_x_1_1_mutex.html#a1a1cd2a1eef5e46432fdd9ce134047b3">m_mutex</a>, 0 );
<a name="l00045"></a>00045 <span class="preprocessor">#endif</span>
<a name="l00046"></a>00046 <span class="preprocessor"></span> }
<a name="l00047"></a>00047
<a name="l00048"></a><a class="code" href="class_f_i_x_1_1_mutex.html#a15db895966337cc031095cbd5357d7aa">00048</a> <a class="code" href="class_f_i_x_1_1_mutex.html#a15db895966337cc031095cbd5357d7aa">~Mutex</a>()
<a name="l00049"></a>00049 {
<a name="l00050"></a>00050 <span class="preprocessor">#ifdef _MSC_VER</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span> DeleteCriticalSection( &<a class="code" href="class_f_i_x_1_1_mutex.html#a1a1cd2a1eef5e46432fdd9ce134047b3">m_mutex</a> );
<a name="l00052"></a>00052 <span class="preprocessor">#else</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span> pthread_mutex_destroy( &<a class="code" href="class_f_i_x_1_1_mutex.html#a1a1cd2a1eef5e46432fdd9ce134047b3">m_mutex</a> );
<a name="l00054"></a>00054 <span class="preprocessor">#endif</span>
<a name="l00055"></a>00055 <span class="preprocessor"></span> }
<a name="l00056"></a>00056
<a name="l00057"></a><a class="code" href="class_f_i_x_1_1_mutex.html#a2494dee262e9a488ea4df7c3e94b6639">00057</a> <span class="keywordtype">void</span> <a class="code" href="class_f_i_x_1_1_mutex.html#a2494dee262e9a488ea4df7c3e94b6639">lock</a>()
<a name="l00058"></a>00058 {
<a name="l00059"></a>00059 <span class="preprocessor">#ifdef _MSC_VER</span>
<a name="l00060"></a>00060 <span class="preprocessor"></span> EnterCriticalSection( &<a class="code" href="class_f_i_x_1_1_mutex.html#a1a1cd2a1eef5e46432fdd9ce134047b3">m_mutex</a> );
<a name="l00061"></a>00061 <span class="preprocessor">#else</span>
<a name="l00062"></a>00062 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( <a class="code" href="class_f_i_x_1_1_mutex.html#a61ae89c4f7503c2d82a65f128f92a4f4">m_count</a> && <a class="code" href="class_f_i_x_1_1_mutex.html#af8cc8b59e2bdc1c89ffbc7ee32bfbd34">m_threadID</a> == pthread_self() )
<a name="l00063"></a>00063 { ++<a class="code" href="class_f_i_x_1_1_mutex.html#a61ae89c4f7503c2d82a65f128f92a4f4">m_count</a>; return ; }
<a name="l00064"></a>00064 pthread_mutex_lock( &<a class="code" href="class_f_i_x_1_1_mutex.html#a1a1cd2a1eef5e46432fdd9ce134047b3">m_mutex</a> );
<a name="l00065"></a>00065 ++<a class="code" href="class_f_i_x_1_1_mutex.html#a61ae89c4f7503c2d82a65f128f92a4f4">m_count</a>;
<a name="l00066"></a>00066 <a class="code" href="class_f_i_x_1_1_mutex.html#af8cc8b59e2bdc1c89ffbc7ee32bfbd34">m_threadID</a> = pthread_self();
<a name="l00067"></a>00067 <span class="preprocessor">#endif</span>
<a name="l00068"></a>00068 <span class="preprocessor"></span> }
<a name="l00069"></a>00069
<a name="l00070"></a><a class="code" href="class_f_i_x_1_1_mutex.html#a2430c8c72d7d2a2070883c4c05e87271">00070</a> <span class="keywordtype">void</span> <a class="code" href="class_f_i_x_1_1_mutex.html#a2430c8c72d7d2a2070883c4c05e87271">unlock</a>()
<a name="l00071"></a>00071 {
<a name="l00072"></a>00072 <span class="preprocessor">#ifdef _MSC_VER</span>
<a name="l00073"></a>00073 <span class="preprocessor"></span> LeaveCriticalSection( &<a class="code" href="class_f_i_x_1_1_mutex.html#a1a1cd2a1eef5e46432fdd9ce134047b3">m_mutex</a> );
<a name="l00074"></a>00074 <span class="preprocessor">#else</span>
<a name="l00075"></a>00075 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( <a class="code" href="class_f_i_x_1_1_mutex.html#a61ae89c4f7503c2d82a65f128f92a4f4">m_count</a> > 1 )
<a name="l00076"></a>00076 { <a class="code" href="class_f_i_x_1_1_mutex.html#a61ae89c4f7503c2d82a65f128f92a4f4">m_count</a>--; return ; }
<a name="l00077"></a>00077 --<a class="code" href="class_f_i_x_1_1_mutex.html#a61ae89c4f7503c2d82a65f128f92a4f4">m_count</a>;
<a name="l00078"></a>00078 <a class="code" href="class_f_i_x_1_1_mutex.html#af8cc8b59e2bdc1c89ffbc7ee32bfbd34">m_threadID</a> = 0;
<a name="l00079"></a>00079 pthread_mutex_unlock( &<a class="code" href="class_f_i_x_1_1_mutex.html#a1a1cd2a1eef5e46432fdd9ce134047b3">m_mutex</a> );
<a name="l00080"></a>00080 <span class="preprocessor">#endif</span>
<a name="l00081"></a>00081 <span class="preprocessor"></span> }
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="keyword">private</span>:
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="preprocessor">#ifdef _MSC_VER</span>
<a name="l00086"></a>00086 <span class="preprocessor"></span> CRITICAL_SECTION <a class="code" href="class_f_i_x_1_1_mutex.html#a1a1cd2a1eef5e46432fdd9ce134047b3">m_mutex</a>;
<a name="l00087"></a>00087 <span class="preprocessor">#else</span>
<a name="l00088"></a><a class="code" href="class_f_i_x_1_1_mutex.html#a1a1cd2a1eef5e46432fdd9ce134047b3">00088</a> <span class="preprocessor"></span> pthread_mutex_t <a class="code" href="class_f_i_x_1_1_mutex.html#a1a1cd2a1eef5e46432fdd9ce134047b3">m_mutex</a>;
<a name="l00089"></a><a class="code" href="class_f_i_x_1_1_mutex.html#af8cc8b59e2bdc1c89ffbc7ee32bfbd34">00089</a> pthread_t <a class="code" href="class_f_i_x_1_1_mutex.html#af8cc8b59e2bdc1c89ffbc7ee32bfbd34">m_threadID</a>;
<a name="l00090"></a><a class="code" href="class_f_i_x_1_1_mutex.html#a61ae89c4f7503c2d82a65f128f92a4f4">00090</a> <span class="keywordtype">int</span> <a class="code" href="class_f_i_x_1_1_mutex.html#a61ae89c4f7503c2d82a65f128f92a4f4">m_count</a>;
<a name="l00091"></a>00091 <span class="preprocessor">#endif</span>
<a name="l00092"></a>00092 <span class="preprocessor"></span>};
<a name="l00093"></a>00093
<a name="l00095"></a><a class="code" href="class_f_i_x_1_1_locker.html">00095</a> <span class="keyword">class </span><a class="code" href="class_f_i_x_1_1_locker.html" title="Locks/Unlocks a mutex using RAII.">Locker</a>
<a name="l00096"></a>00096 {
<a name="l00097"></a>00097 <span class="keyword">public</span>:
<a name="l00098"></a><a class="code" href="class_f_i_x_1_1_locker.html#a893eba6836ead5bd0b31cbbc82fd7183">00098</a> <a class="code" href="class_f_i_x_1_1_locker.html#a893eba6836ead5bd0b31cbbc82fd7183">Locker</a>( <a class="code" href="class_f_i_x_1_1_mutex.html" title="Portable implementation of a mutex.">Mutex</a>& mutex )
<a name="l00099"></a>00099 : <a class="code" href="class_f_i_x_1_1_locker.html#ab3f2ce590231bc8d1111e03b219a6010">m_mutex</a>( mutex )
<a name="l00100"></a>00100 {
<a name="l00101"></a>00101 <a class="code" href="class_f_i_x_1_1_locker.html#ab3f2ce590231bc8d1111e03b219a6010">m_mutex</a>.<a class="code" href="class_f_i_x_1_1_mutex.html#a2494dee262e9a488ea4df7c3e94b6639">lock</a>();
<a name="l00102"></a>00102 }
<a name="l00103"></a>00103
<a name="l00104"></a><a class="code" href="class_f_i_x_1_1_locker.html#a1ea3c230fb40eee9ce6dd98132d29f48">00104</a> <a class="code" href="class_f_i_x_1_1_locker.html#a1ea3c230fb40eee9ce6dd98132d29f48">~Locker</a>()
<a name="l00105"></a>00105 {
<a name="l00106"></a>00106 <a class="code" href="class_f_i_x_1_1_locker.html#ab3f2ce590231bc8d1111e03b219a6010">m_mutex</a>.<a class="code" href="class_f_i_x_1_1_mutex.html#a2430c8c72d7d2a2070883c4c05e87271">unlock</a>();
<a name="l00107"></a>00107 }
<a name="l00108"></a>00108 <span class="keyword">private</span>:
<a name="l00109"></a><a class="code" href="class_f_i_x_1_1_locker.html#ab3f2ce590231bc8d1111e03b219a6010">00109</a> <a class="code" href="class_f_i_x_1_1_mutex.html" title="Portable implementation of a mutex.">Mutex</a>& <a class="code" href="class_f_i_x_1_1_locker.html#ab3f2ce590231bc8d1111e03b219a6010">m_mutex</a>;
<a name="l00110"></a>00110 };
<a name="l00111"></a>00111
<a name="l00113"></a><a class="code" href="class_f_i_x_1_1_reverse_locker.html">00113</a> <span class="keyword">class </span><a class="code" href="class_f_i_x_1_1_reverse_locker.html" title="Does the opposite of the Locker to ensure mutex ends up in a locked state.">ReverseLocker</a>
<a name="l00114"></a>00114 {
<a name="l00115"></a>00115 <span class="keyword">public</span>:
<a name="l00116"></a><a class="code" href="class_f_i_x_1_1_reverse_locker.html#a8873809d296dd3e4c21d42483b73fd82">00116</a> <a class="code" href="class_f_i_x_1_1_reverse_locker.html#a8873809d296dd3e4c21d42483b73fd82">ReverseLocker</a>( <a class="code" href="class_f_i_x_1_1_mutex.html" title="Portable implementation of a mutex.">Mutex</a>& mutex )
<a name="l00117"></a>00117 : <a class="code" href="class_f_i_x_1_1_reverse_locker.html#a333bb41e161321076d28e1821e8e4cf8">m_mutex</a>( mutex )
<a name="l00118"></a>00118 {
<a name="l00119"></a>00119 <a class="code" href="class_f_i_x_1_1_reverse_locker.html#a333bb41e161321076d28e1821e8e4cf8">m_mutex</a>.<a class="code" href="class_f_i_x_1_1_mutex.html#a2430c8c72d7d2a2070883c4c05e87271">unlock</a>();
<a name="l00120"></a>00120 }
<a name="l00121"></a>00121
<a name="l00122"></a><a class="code" href="class_f_i_x_1_1_reverse_locker.html#a446c47e820e2d9554de2bb92e9368985">00122</a> <a class="code" href="class_f_i_x_1_1_reverse_locker.html#a446c47e820e2d9554de2bb92e9368985">~ReverseLocker</a>()
<a name="l00123"></a>00123 {
<a name="l00124"></a>00124 <a class="code" href="class_f_i_x_1_1_reverse_locker.html#a333bb41e161321076d28e1821e8e4cf8">m_mutex</a>.<a class="code" href="class_f_i_x_1_1_mutex.html#a2494dee262e9a488ea4df7c3e94b6639">lock</a>();
<a name="l00125"></a>00125 }
<a name="l00126"></a>00126 <span class="keyword">private</span>:
<a name="l00127"></a><a class="code" href="class_f_i_x_1_1_reverse_locker.html#a333bb41e161321076d28e1821e8e4cf8">00127</a> <a class="code" href="class_f_i_x_1_1_mutex.html" title="Portable implementation of a mutex.">Mutex</a>& <a class="code" href="class_f_i_x_1_1_reverse_locker.html#a333bb41e161321076d28e1821e8e4cf8">m_mutex</a>;
<a name="l00128"></a>00128 };
<a name="l00129"></a>00129 }
<a name="l00130"></a>00130
<a name="l00131"></a>00131 <span class="preprocessor">#endif</span>
</pre></div></div>
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