<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>kmsg_dump_get_line</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux Device Drivers"><link rel="up" href="ch01s09.html" title="Kernel utility functions"><link rel="prev" href="API-kmsg-dump-unregister.html" title="kmsg_dump_unregister"><link rel="next" href="API-kmsg-dump-get-buffer.html" title="kmsg_dump_get_buffer"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">kmsg_dump_get_line</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-kmsg-dump-unregister.html">Prev</a> </td><th width="60%" align="center">Kernel utility functions</th><td width="20%" align="right"> <a accesskey="n" href="API-kmsg-dump-get-buffer.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-kmsg-dump-get-line"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>kmsg_dump_get_line —
retrieve one kmsg log line
</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">bool <b class="fsfunc">kmsg_dump_get_line </b>(</code></td><td>struct kmsg_dumper * <var class="pdparam">dumper</var>, </td></tr><tr><td> </td><td>bool <var class="pdparam">syslog</var>, </td></tr><tr><td> </td><td>char * <var class="pdparam">line</var>, </td></tr><tr><td> </td><td>size_t <var class="pdparam">size</var>, </td></tr><tr><td> </td><td>size_t * <var class="pdparam">len</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a name="idp305398076"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>dumper</code></em></span></dt><dd><p>
registered kmsg dumper
</p></dd><dt><span class="term"><em class="parameter"><code>syslog</code></em></span></dt><dd><p>
include the <span class="quote">“<span class="quote"><4></span>”</span> prefixes
</p></dd><dt><span class="term"><em class="parameter"><code>line</code></em></span></dt><dd><p>
buffer to copy the line to
</p></dd><dt><span class="term"><em class="parameter"><code>size</code></em></span></dt><dd><p>
maximum size of the buffer
</p></dd><dt><span class="term"><em class="parameter"><code>len</code></em></span></dt><dd><p>
length of line placed into buffer
</p></dd></dl></div></div><div class="refsect1"><a name="idp305404020"></a><h2>Description</h2><p>
Start at the beginning of the kmsg buffer, with the oldest kmsg
record, and copy one record into the provided buffer.
</p><p>
Consecutive calls will return the next available record moving
towards the end of the buffer with the youngest messages.
</p><p>
A return value of FALSE indicates that there are no more records to
read.
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