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<div class="title">appender_type_mmap.h File Reference</div> </div>
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<p>Log4c mmap(2) appender interface.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include <log4c/defs.h></code><br/>
<code>#include <<a class="el" href="appender_8h_source.html">log4c/appender.h</a>></code><br/>
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Include dependency graph for appender_type_mmap.h:</div>
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<area shape="rect" id="node5" href="appender_8h.html" title="Implement this interface for your own strategies for printing log statements." alt="" coords="91,80,212,107"/><area shape="rect" id="node8" href="layout_8h.html" title="Interface for user specific layout format of log4c_logging_event events." alt="" coords="135,155,237,181"/><area shape="rect" id="node11" href="logging__event_8h.html" title="the internal representation of logging events." alt="" coords="158,229,305,256"/><area shape="rect" id="node14" href="buffer_8h.html" title="log4c buffer" alt="" coords="373,304,475,331"/><area shape="rect" id="node19" href="location__info_8h.html" title="The internal representation of caller location information." alt="" coords="208,304,349,331"/></map>
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<p><a href="appender__type__mmap_8h_source.html">Go to the source code of this file.</a></p>
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Variables</h2></td></tr>
<tr class="memitem:a6bd44a7f12eac11023c1b2e16df20637"><td class="memItemLeft" align="right" valign="top">__LOG4C_BEGIN_DECLS const <br class="typebreak"/>
<a class="el" href="appender_8h.html#a3b0ea324b72e8122c20c3b237beb923e">log4c_appender_type_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="appender__type__mmap_8h.html#a6bd44a7f12eac11023c1b2e16df20637">log4c_appender_type_mmap</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Log4c mmap(2) appender interface. </p>
<p>The mmap appender uses a fixed length memory mapped file for logging. The appender's name is used as the file name which will be opened and mapped to memory at first use. The memory mapped file is then used as a rotating buffer in which logging events are written.</p>
<p>The following examples shows how to define and use mmap appenders.</p>
<div class="fragment"><div class="line"><a class="code" href="appender_8h.html#ab9a6df639c26566a4576233dfcc21b55">log4c_appender_t</a>* myappender;</div>
<div class="line"></div>
<div class="line">myappender = log4c_appender_get(<span class="stringliteral">"myfile.log"</span>);</div>
<div class="line">log4c_appender_set_type(myappender, &log4c_appender_type_mmap);</div>
</div><!-- fragment --><dl class="section warning"><dt>Warning</dt><dd>the file is not created at first use. It should already exist and have a reasonable size, a mutilple of a page size. </dd></dl>
</div><h2 class="groupheader">Variable Documentation</h2>
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<td class="memname">__LOG4C_BEGIN_DECLS const <a class="el" href="appender_8h.html#a3b0ea324b72e8122c20c3b237beb923e">log4c_appender_type_t</a> log4c_appender_type_mmap</td>
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<p>Mmap appender type definition.</p>
<p>This should be used as a parameter to the <a class="el" href="appender_8h.html#a5749474749c8b3ec049acb82add2501f">log4c_appender_set_type()</a> routine to set the type of the appender. </p>
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