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<title>dcop: dcop_deadlock_test.cpp Source File (dcop)</title>
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<div class="title">dcop_deadlock_test.cpp</div> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*****************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"></span>
<a name="l00003"></a>00003 <span class="comment">Copyright (c) 2004 Waldo Bastian <bastian@kde.org></span>
<a name="l00004"></a>00004 <span class="comment"> </span>
<a name="l00005"></a>00005 <span class="comment">Permission is hereby granted, free of charge, to any person obtaining a copy</span>
<a name="l00006"></a>00006 <span class="comment">of this software and associated documentation files (the "Software"), to deal</span>
<a name="l00007"></a>00007 <span class="comment">in the Software without restriction, including without limitation the rights</span>
<a name="l00008"></a>00008 <span class="comment">to use, copy, modify, merge, publish, distribute, sublicense, and/or sell</span>
<a name="l00009"></a>00009 <span class="comment">copies of the Software, and to permit persons to whom the Software is</span>
<a name="l00010"></a>00010 <span class="comment">furnished to do so, subject to the following conditions:</span>
<a name="l00011"></a>00011 <span class="comment"> </span>
<a name="l00012"></a>00012 <span class="comment">The above copyright notice and this permission notice shall be included in</span>
<a name="l00013"></a>00013 <span class="comment">all copies or substantial portions of the Software.</span>
<a name="l00014"></a>00014 <span class="comment"> </span>
<a name="l00015"></a>00015 <span class="comment">THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span>
<a name="l00016"></a>00016 <span class="comment">IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span>
<a name="l00017"></a>00017 <span class="comment">FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span>
<a name="l00018"></a>00018 <span class="comment">AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN</span>
<a name="l00019"></a>00019 <span class="comment">AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN</span>
<a name="l00020"></a>00020 <span class="comment">CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.</span>
<a name="l00021"></a>00021 <span class="comment"> </span>
<a name="l00022"></a>00022 <span class="comment">******************************************************************</span>
<a name="l00023"></a>00023 <span class="comment">*/</span>
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="preprocessor">#include <dcop_deadlock_test.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <dcopref.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <qtimer.h></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <sys/time.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <sys/types.h></span>
<a name="l00030"></a>00030 <span class="preprocessor">#include <unistd.h></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00032"></a>00032
<a name="l00033"></a>00033 MyDCOPObject::MyDCOPObject(<span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &name, <span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &remoteName)
<a name="l00034"></a>00034 : <a class="codeRef" href="qobject.html">QObject</a>(0, name), <a class="code" href="classDCOPObject.html" title="Provides an interface for receiving DCOP messages.">DCOPObject</a>(name), m_remoteName(remoteName)
<a name="l00035"></a>00035 {
<a name="l00036"></a>00036 connect(&m_timer, SIGNAL(timeout()), <span class="keyword">this</span>, SLOT(slotTimeout()));
<a name="l00037"></a>00037 }
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="keywordtype">bool</span> MyDCOPObject::process(<span class="keyword">const</span> <a class="codeRef" href="qcstring.html">QCString</a> &fun, <span class="keyword">const</span> <a class="codeRef" href="qbytearray.html">QByteArray</a> &data,
<a name="l00040"></a>00040 <a class="codeRef" href="qcstring.html">QCString</a>& replyType, <a class="codeRef" href="qbytearray.html">QByteArray</a> &replyData)
<a name="l00041"></a>00041 {
<a name="l00042"></a>00042 <span class="keywordflow">if</span> (fun == <span class="stringliteral">"function(QCString)"</span>) {
<a name="l00043"></a>00043 <a class="codeRef" href="qdatastream.html">QDataStream</a> args( data, IO_ReadOnly );
<a name="l00044"></a>00044 args >> m_remoteName;
<a name="l00045"></a>00045
<a name="l00046"></a>00046 <span class="keyword">struct </span>timeval tv;
<a name="l00047"></a>00047 gettimeofday(&tv, 0);
<a name="l00048"></a>00048 qWarning(<span class="stringliteral">"%s: function('%s') %d:%06d"</span>, name(), m_remoteName.data(), tv.tv_sec % 100, tv.tv_usec);
<a name="l00049"></a>00049
<a name="l00050"></a>00050 replyType = <span class="stringliteral">"QString"</span>;
<a name="l00051"></a>00051 <a class="codeRef" href="qdatastream.html">QDataStream</a> reply( replyData, IO_WriteOnly );
<a name="l00052"></a>00052 reply << <a class="codeRef" href="qstring.html">QString</a>(<span class="stringliteral">"Hey"</span>);
<a name="l00053"></a>00053 m_timer.start(1000, <span class="keyword">true</span>);
<a name="l00054"></a>00054 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00055"></a>00055 }
<a name="l00056"></a>00056 <span class="keywordflow">return</span> <a class="code" href="classDCOPObject.html#a35c0f1c8778406cc8435ad10c27cdd0c" title="Dispatches a message.">DCOPObject::process</a>(fun, data, replyType, replyData);
<a name="l00057"></a>00057 }
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="keywordtype">void</span> MyDCOPObject::slotTimeout()
<a name="l00060"></a>00060 {
<a name="l00061"></a>00061 <span class="keyword">struct </span>timeval tv;
<a name="l00062"></a>00062 gettimeofday(&tv, 0);
<a name="l00063"></a>00063 qWarning(<span class="stringliteral">"%s: slotTimeout() %d:%06d"</span>, name(), tv.tv_sec % 100, tv.tv_usec);
<a name="l00064"></a>00064
<a name="l00065"></a>00065 m_timer.start(1000, <span class="keyword">true</span>);
<a name="l00066"></a>00066 <a class="codeRef" href="qstring.html">QString</a> result;
<a name="l00067"></a>00067 <a class="code" href="classDCOPRef.html" title="A DCOPRef(erence) encapsulates a remote DCOP object as a triple <app,obj,type> where type is optional...">DCOPRef</a>(m_remoteName, m_remoteName).<a class="code" href="classDCOPRef.html#a8975f6ec7c25e8d24f8d0a8123921c3d" title="Calls the function fun on the object referenced by this reference.">call</a>(<span class="stringliteral">"function"</span>, <a class="codeRef" href="qcstring.html">QCString</a>(name())).<a class="code" href="classDCOPReply.html#a8feb09da3a85685d3e2e2399a594a8ce" title="Retrieves the value from the type T.">get</a>(result);
<a name="l00068"></a>00068 gettimeofday(&tv, 0);
<a name="l00069"></a>00069 qWarning(<span class="stringliteral">"%s: Got result '%s' %d:%06d"</span>, name(), result.<a class="codeRef" href="qstring.html#latin1">latin1</a>(), tv.tv_sec % 100, tv.tv_usec);
<a name="l00070"></a>00070 }
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> **argv)
<a name="l00073"></a>00073 {
<a name="l00074"></a>00074 <a class="codeRef" href="qcstring.html">QCString</a> myName = <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/classKApplication.html#a70b63a8a22f2544d0e322fb6a4f2571b">KApplication::dcopClient</a>()-><a class="code" href="classDCOPClient.html#a9efc2316a0980e5cff73b7c6b7a40d16" title="Registers at the DCOP server.">registerAs</a>(<span class="stringliteral">"testdcop"</span>, <span class="keyword">false</span>);
<a name="l00075"></a>00075 <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/classKApplication.html">KApplication</a> app(argc, argv, <span class="stringliteral">"testdcop"</span>);
<a name="l00076"></a>00076
<a name="l00077"></a>00077 qWarning(<span class="stringliteral">"%d:I am '%s'"</span>, getpid(), app.dcopClient()->appId().data());
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="keywordflow">if</span> (myName == <span class="stringliteral">"testdcop"</span>)
<a name="l00080"></a>00080 {
<a name="l00081"></a>00081 system(<span class="stringliteral">"./dcop_deadlock_test testdcop&"</span>);
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083
<a name="l00084"></a>00084 <a class="codeRef" href="qcstring.html">QCString</a> remoteApp;
<a name="l00085"></a>00085 <span class="keywordflow">if</span> (argc == 2)
<a name="l00086"></a>00086 {
<a name="l00087"></a>00087 remoteApp = argv[1];
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089 MyDCOPObject myObject(app.dcopClient()->appId(), remoteApp);
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="keywordflow">if</span> (!remoteApp.<a class="codeRef" href="qcstring.html#isEmpty">isEmpty</a>())
<a name="l00092"></a>00092 myObject.slotTimeout();
<a name="l00093"></a>00093 app.exec();
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="preprocessor">#include "dcop_deadlock_test.moc"</span>
</pre></div></div>
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