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| <h1>null_rw_mutex.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span> |
| <a name="l00002"></a>00002 <span class="comment"> Copyright 2005-2010 Intel Corporation. All Rights Reserved.</span> |
| <a name="l00003"></a>00003 <span class="comment"></span> |
| <a name="l00004"></a>00004 <span class="comment"> The source code contained or described herein and all documents related</span> |
| <a name="l00005"></a>00005 <span class="comment"> to the source code ("Material") are owned by Intel Corporation or its</span> |
| <a name="l00006"></a>00006 <span class="comment"> suppliers or licensors. Title to the Material remains with Intel</span> |
| <a name="l00007"></a>00007 <span class="comment"> Corporation or its suppliers and licensors. The Material is protected</span> |
| <a name="l00008"></a>00008 <span class="comment"> by worldwide copyright laws and treaty provisions. No part of the</span> |
| <a name="l00009"></a>00009 <span class="comment"> Material may be used, copied, reproduced, modified, published, uploaded,</span> |
| <a name="l00010"></a>00010 <span class="comment"> posted, transmitted, distributed, or disclosed in any way without</span> |
| <a name="l00011"></a>00011 <span class="comment"> Intel's prior express written permission.</span> |
| <a name="l00012"></a>00012 <span class="comment"></span> |
| <a name="l00013"></a>00013 <span class="comment"> No license under any patent, copyright, trade secret or other</span> |
| <a name="l00014"></a>00014 <span class="comment"> intellectual property right is granted to or conferred upon you by</span> |
| <a name="l00015"></a>00015 <span class="comment"> disclosure or delivery of the Materials, either expressly, by</span> |
| <a name="l00016"></a>00016 <span class="comment"> implication, inducement, estoppel or otherwise. Any license under such</span> |
| <a name="l00017"></a>00017 <span class="comment"> intellectual property rights must be express and approved by Intel in</span> |
| <a name="l00018"></a>00018 <span class="comment"> writing.</span> |
| <a name="l00019"></a>00019 <span class="comment">*/</span> |
| <a name="l00020"></a>00020 |
| <a name="l00021"></a>00021 <span class="preprocessor">#ifndef __TBB_null_rw_mutex_H</span> |
| <a name="l00022"></a>00022 <span class="preprocessor"></span><span class="preprocessor">#define __TBB_null_rw_mutex_H</span> |
| <a name="l00023"></a>00023 <span class="preprocessor"></span> |
| <a name="l00024"></a>00024 <span class="keyword">namespace </span>tbb { |
| <a name="l00025"></a>00025 |
| <a name="l00027"></a>00027 |
| <a name="l00029"></a><a class="code" href="a00176.html">00029</a> <span class="keyword">class </span><a class="code" href="a00176.html">null_rw_mutex</a> { |
| <a name="l00031"></a>00031 <a class="code" href="a00176.html">null_rw_mutex</a>( <span class="keyword">const</span> <a class="code" href="a00176.html">null_rw_mutex</a>& ); |
| <a name="l00032"></a>00032 <span class="keywordtype">void</span> operator=( <span class="keyword">const</span> <a class="code" href="a00176.html">null_rw_mutex</a>& ); |
| <a name="l00033"></a>00033 <span class="keyword">public</span>: |
| <a name="l00035"></a><a class="code" href="a00177.html">00035</a> <span class="keyword">class </span><a class="code" href="a00177.html">scoped_lock</a> { |
| <a name="l00036"></a>00036 <span class="keyword">public</span>: |
| <a name="l00037"></a>00037 <a class="code" href="a00177.html">scoped_lock</a>() {} |
| <a name="l00038"></a>00038 <a class="code" href="a00177.html">scoped_lock</a>( <a class="code" href="a00176.html">null_rw_mutex</a>& , <span class="keywordtype">bool</span> = <span class="keyword">true</span> ) {} |
| <a name="l00039"></a>00039 ~<a class="code" href="a00177.html">scoped_lock</a>() {} |
| <a name="l00040"></a>00040 <span class="keywordtype">void</span> acquire( <a class="code" href="a00176.html">null_rw_mutex</a>& , <span class="keywordtype">bool</span> = <span class="keyword">true</span> ) {} |
| <a name="l00041"></a>00041 <span class="keywordtype">bool</span> upgrade_to_writer() { <span class="keywordflow">return</span> <span class="keyword">true</span>; } |
| <a name="l00042"></a>00042 <span class="keywordtype">bool</span> downgrade_to_reader() { <span class="keywordflow">return</span> <span class="keyword">true</span>; } |
| <a name="l00043"></a>00043 <span class="keywordtype">bool</span> try_acquire( <a class="code" href="a00176.html">null_rw_mutex</a>& , <span class="keywordtype">bool</span> = <span class="keyword">true</span> ) { <span class="keywordflow">return</span> <span class="keyword">true</span>; } |
| <a name="l00044"></a>00044 <span class="keywordtype">void</span> release() {} |
| <a name="l00045"></a>00045 }; |
| <a name="l00046"></a>00046 |
| <a name="l00047"></a>00047 <a class="code" href="a00176.html">null_rw_mutex</a>() {} |
| <a name="l00048"></a>00048 |
| <a name="l00049"></a>00049 <span class="comment">// Mutex traits </span> |
| <a name="l00050"></a>00050 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> is_rw_mutex = <span class="keyword">true</span>; |
| <a name="l00051"></a>00051 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> is_recursive_mutex = <span class="keyword">true</span>; |
| <a name="l00052"></a>00052 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> is_fair_mutex = <span class="keyword">true</span>; |
| <a name="l00053"></a>00053 }; |
| <a name="l00054"></a>00054 |
| <a name="l00055"></a>00055 } |
| <a name="l00056"></a>00056 |
| <a name="l00057"></a>00057 <span class="preprocessor">#endif </span><span class="comment">/* __TBB_null_rw_mutex_H */</span> |
| </pre></div><hr> |
| <p></p> |
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