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<div class="navpath"><a class="el" href="namespaceost.html">ost</a>::<a class="el" href="classost_1_1_semaphore_lock.html">SemaphoreLock</a>
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<h1>ost::SemaphoreLock Class Reference</h1><!-- doxytag: class="ost::SemaphoreLock" -->
<p>The <a class="el" href="classost_1_1_semaphore_lock.html" title="The SemaphoreLock class is used to protect a section of code through a semaphore...">SemaphoreLock</a> class is used to protect a section of code through a semaphore so that only x instances of the member function may execute concurrently.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="thread_8h_source.html">thread.h</a>></code></p>
<p><a href="classost_1_1_semaphore_lock-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="classost_1_1_semaphore_lock.html#adb34354071ac2005870fb78926887a05">SemaphoreLock</a> (<a class="el" href="classost_1_1_semaphore.html">Semaphore</a> &_sem)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Wait for the semaphore. <a href="#adb34354071ac2005870fb78926887a05"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classost_1_1_semaphore_lock.html#a59bf7e09b61fd3b900070841fae86597">~SemaphoreLock</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Post the semaphore automatically. <a href="#a59bf7e09b61fd3b900070841fae86597"></a><br/></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>The <a class="el" href="classost_1_1_semaphore_lock.html" title="The SemaphoreLock class is used to protect a section of code through a semaphore...">SemaphoreLock</a> class is used to protect a section of code through a semaphore so that only x instances of the member function may execute concurrently. </p>
<p>A common use is</p>
<p>void func_to_protect() { <a class="el" href="classost_1_1_semaphore_lock.html" title="The SemaphoreLock class is used to protect a section of code through a semaphore...">SemaphoreLock</a> lock(semaphore); ... operation ... }</p>
<p>NOTE: do not declare variable as "SemaohoreLock (semaphore)", the mutex will be released at statement end.</p>
<dl class="author"><dt><b>Author:</b></dt><dd>David Sugar <<a href="mailto:dyfet@gnu.org">dyfet@gnu.org</a>> <a class="el" href="classost_1_1_semaphore.html" title="A semaphore is generally used as a synchronization object between multiple threads...">Semaphore</a> automatic locker for protected access. </dd></dl>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="adb34354071ac2005870fb78926887a05"></a><!-- doxytag: member="ost::SemaphoreLock::SemaphoreLock" ref="adb34354071ac2005870fb78926887a05" args="(Semaphore &_sem)" -->
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<td class="memname">ost::SemaphoreLock::SemaphoreLock </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classost_1_1_semaphore.html">Semaphore</a> & </td>
<td class="paramname"> <em>_sem</em></td>
<td> ) </td>
<td><code> [inline]</code></td>
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<div class="memdoc">
<p>Wait for the semaphore. </p>
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<a class="anchor" id="a59bf7e09b61fd3b900070841fae86597"></a><!-- doxytag: member="ost::SemaphoreLock::~SemaphoreLock" ref="a59bf7e09b61fd3b900070841fae86597" args="()" -->
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<td class="memname">ost::SemaphoreLock::~SemaphoreLock </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td><code> [inline]</code></td>
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<p>Post the semaphore automatically. </p>
</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="thread_8h_source.html">thread.h</a></li>
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