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<div class="navpath"><a class="el" href="namespacekyotocabinet.html">kyotocabinet</a>::<a class="el" href="classkyotocabinet_1_1SpinRWLock.html">SpinRWLock</a>
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<h1>kyotocabinet::SpinRWLock Class Reference</h1><!-- doxytag: class="kyotocabinet::SpinRWLock" -->
<p>Lightweight reader-writer locking device.
<a href="#_details">More...</a></p>
<p><code>#include <kcthread.h></code></p>
<p><a href="classkyotocabinet_1_1SpinRWLock-members.html">List of all members.</a></p>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1SpinRWLock.html#a25aa60db4aabbbbfe71c9232f5237cbf">SpinRWLock</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Default constructor. <a href="#a25aa60db4aabbbbfe71c9232f5237cbf"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1SpinRWLock.html#a5dfd3267f02f736e1fae6b169b7dfa05">~SpinRWLock</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <a href="#a5dfd3267f02f736e1fae6b169b7dfa05"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1SpinRWLock.html#aad5c21b72910172a633bb30c841b33e3">lock_writer</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the writer lock. <a href="#aad5c21b72910172a633bb30c841b33e3"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1SpinRWLock.html#a3c7fffa4e1a114efbec7cb1c41c0098a">lock_writer_try</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Try to get the writer lock. <a href="#a3c7fffa4e1a114efbec7cb1c41c0098a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1SpinRWLock.html#acd589f9b2c66f0ca8051766ade0e1399">lock_reader</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get a reader lock. <a href="#acd589f9b2c66f0ca8051766ade0e1399"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1SpinRWLock.html#ad41f41bc02dd137d2f519826dc6a61df">lock_reader_try</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Try to get a reader lock. <a href="#ad41f41bc02dd137d2f519826dc6a61df"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1SpinRWLock.html#a511e8d30ee24f67e914e59992cc042be">unlock</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Release the lock. <a href="#a511e8d30ee24f67e914e59992cc042be"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1SpinRWLock.html#a1c01703eef1e1d4e381019b137c889dc">promote</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Promote a reader lock to the writer lock. <a href="#a1c01703eef1e1d4e381019b137c889dc"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classkyotocabinet_1_1SpinRWLock.html#a5e60170fe21b5a8dddc3589fe2787075">demote</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Demote the writer lock to a reader lock. <a href="#a5e60170fe21b5a8dddc3589fe2787075"></a><br/></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>Lightweight reader-writer locking device. </p>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a25aa60db4aabbbbfe71c9232f5237cbf"></a><!-- doxytag: member="kyotocabinet::SpinRWLock::SpinRWLock" ref="a25aa60db4aabbbbfe71c9232f5237cbf" args="()" -->
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<td class="memname">kyotocabinet::SpinRWLock::SpinRWLock </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td><code> [explicit]</code></td>
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<p>Default constructor. </p>
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<a class="anchor" id="a5dfd3267f02f736e1fae6b169b7dfa05"></a><!-- doxytag: member="kyotocabinet::SpinRWLock::~SpinRWLock" ref="a5dfd3267f02f736e1fae6b169b7dfa05" args="()" -->
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<td class="memname">kyotocabinet::SpinRWLock::~SpinRWLock </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td></td>
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<p>Destructor. </p>
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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="aad5c21b72910172a633bb30c841b33e3"></a><!-- doxytag: member="kyotocabinet::SpinRWLock::lock_writer" ref="aad5c21b72910172a633bb30c841b33e3" args="()" -->
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<td class="memname">void kyotocabinet::SpinRWLock::lock_writer </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td></td>
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<div class="memdoc">
<p>Get the writer lock. </p>
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<a class="anchor" id="a3c7fffa4e1a114efbec7cb1c41c0098a"></a><!-- doxytag: member="kyotocabinet::SpinRWLock::lock_writer_try" ref="a3c7fffa4e1a114efbec7cb1c41c0098a" args="()" -->
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<td class="memname">bool kyotocabinet::SpinRWLock::lock_writer_try </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td></td>
</tr>
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<p>Try to get the writer lock. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>true on success, or false on failure. </dd></dl>
</div>
</div>
<a class="anchor" id="acd589f9b2c66f0ca8051766ade0e1399"></a><!-- doxytag: member="kyotocabinet::SpinRWLock::lock_reader" ref="acd589f9b2c66f0ca8051766ade0e1399" args="()" -->
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<td class="memname">void kyotocabinet::SpinRWLock::lock_reader </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td></td>
</tr>
</table>
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<div class="memdoc">
<p>Get a reader lock. </p>
</div>
</div>
<a class="anchor" id="ad41f41bc02dd137d2f519826dc6a61df"></a><!-- doxytag: member="kyotocabinet::SpinRWLock::lock_reader_try" ref="ad41f41bc02dd137d2f519826dc6a61df" args="()" -->
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<td class="memname">bool kyotocabinet::SpinRWLock::lock_reader_try </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td></td>
</tr>
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<p>Try to get a reader lock. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>true on success, or false on failure. </dd></dl>
</div>
</div>
<a class="anchor" id="a511e8d30ee24f67e914e59992cc042be"></a><!-- doxytag: member="kyotocabinet::SpinRWLock::unlock" ref="a511e8d30ee24f67e914e59992cc042be" args="()" -->
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<td class="memname">void kyotocabinet::SpinRWLock::unlock </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td></td>
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<p>Release the lock. </p>
</div>
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<a class="anchor" id="a1c01703eef1e1d4e381019b137c889dc"></a><!-- doxytag: member="kyotocabinet::SpinRWLock::promote" ref="a1c01703eef1e1d4e381019b137c889dc" args="()" -->
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<td class="memname">bool kyotocabinet::SpinRWLock::promote </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td></td>
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<p>Promote a reader lock to the writer lock. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>true on success, or false on failure. </dd></dl>
</div>
</div>
<a class="anchor" id="a5e60170fe21b5a8dddc3589fe2787075"></a><!-- doxytag: member="kyotocabinet::SpinRWLock::demote" ref="a5e60170fe21b5a8dddc3589fe2787075" args="()" -->
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<td class="memname">void kyotocabinet::SpinRWLock::demote </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td></td>
</tr>
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<div class="memdoc">
<p>Demote the writer lock to a reader lock. </p>
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</div>
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