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Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/msgqclean_8c_source.html
author Dominic Pinkman <dominic.pinkman@nokia.com>
Fri, 13 Aug 2010 16:47:46 +0100
changeset 14 578be2adaf3e
parent 6 43e37759235e
permissions -rw-r--r--
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
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<title>TB9.2 Example Applications: examples/PIPS/opencmessagequeuelibraryex/engine/src/msgqclean.c Source File</title>
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<link href="tabs.css" rel="stylesheet" type="text/css"/>
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<link href="doxygen.css" rel="stylesheet" type="text/css"/>
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</head>
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<body>
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<!-- Generated by Doxygen 1.6.2 -->
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<h1>examples/PIPS/opencmessagequeuelibraryex/engine/src/msgqclean.c</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
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<a name="l00010"></a>00010 <span class="preprocessor">#include &lt;errno.h&gt;</span>
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<a name="l00011"></a>00011 <span class="preprocessor">#include &lt;sys/msg.h&gt;</span>
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<a name="l00012"></a>00012 <span class="preprocessor">#include &quot;<a class="code" href="msgqinternal_8h.html">MsgQInternal.h</a>&quot;</span>
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<a name="l00013"></a>00013
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<a name="l00014"></a>00014
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<a name="l00015"></a>00015 <span class="comment">/****************************************************************************</span>
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<a name="l00016"></a>00016 <span class="comment">* MsgQClean (qName, err)</span>
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<a name="l00017"></a>00017 <span class="comment">* Description: Function that empties the specified queue</span>
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<a name="l00018"></a>00018 <span class="comment">*****************************************************************************/</span>
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<a name="l00019"></a>00019
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<a name="l00020"></a><a class="code" href="msgqlib_8h.html#af100b3206a8771a0b599a1ba5a4c8cb8">00020</a> EXPORT_C <span class="keywordtype">int</span> <a class="code" href="msgqlib_8h.html#af100b3206a8771a0b599a1ba5a4c8cb8">MsgQClean</a>(ULONG qName, <span class="keywordtype">int</span>* err) {
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<a name="l00021"></a>00021         <a class="code" href="struct_msg_q_info.html">MSGQ_INFO</a>* pMsgQInfo = NULL;
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<a name="l00022"></a>00022         <span class="keywordtype">char</span> msg[MAX_MSG_LEN];
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<a name="l00023"></a>00023         <span class="keywordtype">int</span> rcv_err;
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<a name="l00024"></a>00024
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<a name="l00025"></a>00025         <span class="keywordflow">if</span> ((pMsgQInfo = MsgQTableLookup(qName)) != NULL) {
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<a name="l00026"></a>00026                 <span class="comment">// sending a message is not allowed</span>
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<a name="l00027"></a>00027                 pMsgQInfo-&gt;sendState = MSG_Q_CLEANING;
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<a name="l00028"></a>00028                 <span class="comment">// empty out the queue </span>
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<a name="l00029"></a>00029                 <span class="keywordflow">while</span>(<a class="code" href="msgqlib_8h.html#a92645de66865355158589ff1dd7bc28d">MsgQReceive</a>(qName, msg, MAX_MSG_LEN, IPC_NOWAIT, &amp;rcv_err) != ERROR) {};
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<a name="l00030"></a>00030                 <span class="keywordflow">if</span> (rcv_err == ENOMSG) {
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<a name="l00031"></a>00031                         *err = OK;
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<a name="l00032"></a>00032                         <span class="keywordflow">return</span> (OK);
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<a name="l00033"></a>00033                 }
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<a name="l00034"></a>00034                 <span class="keywordflow">else</span>
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<a name="l00035"></a>00035                         *err = rcv_err;
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<a name="l00036"></a>00036                 <span class="comment">// sending a message is allowed</span>
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<a name="l00037"></a>00037                 pMsgQInfo-&gt;sendState = MSG_Q_READY;
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<a name="l00038"></a>00038         }
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<a name="l00039"></a>00039         <span class="keywordflow">else</span>
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<a name="l00040"></a>00040                 *err = KMsgQLibQIdErr;
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<a name="l00041"></a>00041
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<a name="l00042"></a>00042         <span class="keywordflow">return</span>(ERROR);
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<a name="l00043"></a>00043 }
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<a name="l00044"></a>00044
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<a name="l00045"></a>00045
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</pre></div></div>
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<hr size="1"/><address style="text-align: right;"><small>Generated by&nbsp;
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<a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address>
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</body>
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</html>
MCL/sftools/depl/docscontent