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<h1>ucommon/atomic.h</h1> </div>
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<a href="a00177.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (C) 2006-2010 David Sugar, Tycho Softworks.</span>
<a name="l00002"></a>00002 <span class="comment">//</span>
<a name="l00003"></a>00003 <span class="comment">// This file is part of GNU uCommon C++.</span>
<a name="l00004"></a>00004 <span class="comment">//</span>
<a name="l00005"></a>00005 <span class="comment">// GNU uCommon C++ is free software: you can redistribute it and/or modify</span>
<a name="l00006"></a>00006 <span class="comment">// it under the terms of the GNU Lesser General Public License as published</span>
<a name="l00007"></a>00007 <span class="comment">// by the Free Software Foundation, either version 3 of the License, or</span>
<a name="l00008"></a>00008 <span class="comment">// (at your option) any later version.</span>
<a name="l00009"></a>00009 <span class="comment">//</span>
<a name="l00010"></a>00010 <span class="comment">// GNU uCommon C++ is distributed in the hope that it will be useful,</span>
<a name="l00011"></a>00011 <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00012"></a>00012 <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00013"></a>00013 <span class="comment">// GNU Lesser General Public License for more details.</span>
<a name="l00014"></a>00014 <span class="comment">//</span>
<a name="l00015"></a>00015 <span class="comment">// You should have received a copy of the GNU Lesser General Public License</span>
<a name="l00016"></a>00016 <span class="comment">// along with GNU uCommon C++. If not, see <http://www.gnu.org/licenses/>.</span>
<a name="l00017"></a>00017
<a name="l00025"></a>00025 <span class="preprocessor">#ifndef _UCOMMON_ATOMIC_H_</span>
<a name="l00026"></a>00026 <span class="preprocessor"></span><span class="preprocessor">#define _UCOMMON_ATOMIC_H_</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span>
<a name="l00028"></a>00028 <span class="preprocessor">#ifndef _UCOMMON_CONFIG_H_</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span><span class="preprocessor">#include <ucommon/platform.h></span>
<a name="l00030"></a>00030 <span class="preprocessor">#endif</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span>
<a name="l00032"></a>00032 NAMESPACE_UCOMMON
<a name="l00033"></a>00033
<a name="l00042"></a><a class="code" href="a00016.html">00042</a> <span class="keyword">class </span>__EXPORT <a class="code" href="a00016.html" title="Generic atomic class for referencing atomic objects and static functions.">atomic</a>
<a name="l00043"></a>00043 {
<a name="l00044"></a>00044 <span class="keyword">public</span>:
<a name="l00048"></a><a class="code" href="a00016.html#a87da8723f4e8fc7f451fbe67809832d5">00048</a> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> <a class="code" href="a00016.html#a87da8723f4e8fc7f451fbe67809832d5" title="Set to true if atomics have to be simulated with mutexes.">simulated</a>;
<a name="l00049"></a>00049
<a name="l00055"></a><a class="code" href="a00017.html">00055</a> <span class="keyword">class </span>__EXPORT <a class="code" href="a00017.html" title="Atomic counter class.">counter</a>
<a name="l00056"></a>00056 {
<a name="l00057"></a>00057 <span class="keyword">private</span>:
<a name="l00058"></a>00058 <span class="keyword">volatile</span> <span class="keywordtype">long</span> value;
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="keyword">public</span>:
<a name="l00061"></a>00061 <a class="code" href="a00017.html" title="Atomic counter class.">counter</a>(<span class="keywordtype">long</span> initial = 0);
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="keywordtype">long</span> operator++();
<a name="l00064"></a>00064 <span class="keywordtype">long</span> operator--();
<a name="l00065"></a>00065 <span class="keywordtype">long</span> operator+=(<span class="keywordtype">long</span> offset);
<a name="l00066"></a>00066 <span class="keywordtype">long</span> operator-=(<span class="keywordtype">long</span> offset);
<a name="l00067"></a>00067
<a name="l00068"></a>00068 <span class="keyword">inline</span> operator long()
<a name="l00069"></a>00069 {<span class="keywordflow">return</span> (<span class="keywordtype">long</span>)(value);};
<a name="l00070"></a>00070
<a name="l00071"></a>00071 <span class="keyword">inline</span> <span class="keywordtype">long</span> operator*()
<a name="l00072"></a>00072 {<span class="keywordflow">return</span> value;};
<a name="l00073"></a>00073 };
<a name="l00074"></a>00074
<a name="l00080"></a><a class="code" href="a00018.html">00080</a> <span class="keyword">class </span>__EXPORT <a class="code" href="a00018.html" title="Atomic spinlock class.">spinlock</a>
<a name="l00081"></a>00081 {
<a name="l00082"></a>00082 <span class="keyword">private</span>:
<a name="l00083"></a>00083 <span class="keyword">volatile</span> <span class="keywordtype">long</span> value;
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="keyword">public</span>:
<a name="l00089"></a>00089 <a class="code" href="a00018.html" title="Atomic spinlock class.">spinlock</a>();
<a name="l00090"></a>00090
<a name="l00096"></a>00096 <span class="keywordtype">bool</span> <a class="code" href="a00200.html#a05e1c5a08bac3a310247fe41ad996efc" title="Convenience function to acquire a mutex.">acquire</a>(<span class="keywordtype">void</span>);
<a name="l00097"></a>00097
<a name="l00101"></a>00101 <span class="keywordtype">void</span> <a class="code" href="a00176.html#adc60e12f44fcd76b53cda844f8aa8e81" title="Convenience function to unlock shared object through it&#39;s protocol.">release</a>(<span class="keywordtype">void</span>);
<a name="l00102"></a>00102 };
<a name="l00103"></a>00103 };
<a name="l00104"></a>00104
<a name="l00105"></a>00105 END_NAMESPACE
<a name="l00106"></a>00106
<a name="l00107"></a>00107 <span class="preprocessor">#endif</span>
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