<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en_US" xml:lang="en_US"> <head> <title>dcop: dcop_deadlock_test.cpp Source File (dcop)</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta http-equiv="pics-label" content='(pics-1.1 "http://www.icra.org/ratingsv02.html" comment "ICRAonline DE v2.0" l gen true for "http://www.kde.org" r (nz 1 vz 1 lz 1 oz 1 cb 1) "http://www.rsac.org/ratingsv01.html" l gen true for "http://www.kde.org" r (n 0 s 0 v 0 l 0))' /> <meta name="trademark" content="KDE e.V." /> <meta name="description" content="K Desktop Environment Homepage, KDE.org" /> <meta name="MSSmartTagsPreventParsing" content="true" /> <meta name="robots" content="all" /> <link rel="shortcut icon" href="../../favicon.ico" /> <link rel="stylesheet" media="screen" type="text/css" title="APIDOX" href="doxygen.css" /> </head> <body> <div id="nav_header_top" align="right"> <a href="#content" class="doNotDisplay" accesskey="2">Skip to main content ::</a> <a href="../.."><img id="nav_header_logo" alt="Home" align="left" src="../../kde_gear_64.png" border="0" /></a> <span class="doNotDisplay">::</span> <div id="nav_header_title" align="left">KDE API Reference</div> </div> <div id="nav_header_bottom" align="right"> <span class="doNotDisplay">:: <a href="#navigation" accesskey="5">Skip to Link Menu</a><br/></span> <div id="nav_header_bottom_right" style="text-align: left;"> / <a href="../..">API Reference</a> / <a href=".">dcop</a> </div> </div> <table id="main" border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td valign="top" class="menuheader" height="0"></td> <td id="contentcolumn" valign="top" rowspan="2" > <div id="content" style="padding-top: 0px;"><div style="width:100%; margin: 0px; padding: 0px;"> <a name="content"></a> <!-- Generated by Doxygen 1.5.5 --> <h1>dcop_deadlock_test.cpp</h1><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" doxygen="qt.tag:/usr/lib/qt3/doc/html/" href="/usr/lib/qt3/doc/html/qcstring.html">QCString</a> &name, <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:/usr/lib/qt3/doc/html/" href="/usr/lib/qt3/doc/html/qcstring.html">QCString</a> &remoteName) <a name="l00034"></a>00034 : <a class="codeRef" doxygen="qt.tag:/usr/lib/qt3/doc/html/" href="/usr/lib/qt3/doc/html/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" doxygen="qt.tag:/usr/lib/qt3/doc/html/" href="/usr/lib/qt3/doc/html/qcstring.html">QCString</a> &fun, <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:/usr/lib/qt3/doc/html/" href="/usr/lib/qt3/doc/html/qbytearray.html">QByteArray</a> &data, <a name="l00040"></a>00040 <a class="codeRef" doxygen="qt.tag:/usr/lib/qt3/doc/html/" href="/usr/lib/qt3/doc/html/qcstring.html">QCString</a>& replyType, <a class="codeRef" doxygen="qt.tag:/usr/lib/qt3/doc/html/" href="/usr/lib/qt3/doc/html/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" doxygen="qt.tag:/usr/lib/qt3/doc/html/" href="/usr/lib/qt3/doc/html/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" doxygen="qt.tag:/usr/lib/qt3/doc/html/" href="/usr/lib/qt3/doc/html/qdatastream.html">QDataStream</a> reply( replyData, IO_WriteOnly ); <a name="l00052"></a>00052 reply << <a class="codeRef" doxygen="qt.tag:/usr/lib/qt3/doc/html/" href="/usr/lib/qt3/doc/html/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#35c0f1c8778406cc8435ad10c27cdd0c" 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" doxygen="qt.tag:/usr/lib/qt3/doc/html/" href="/usr/lib/qt3/doc/html/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 &lt;app,obj,type&gt;...">DCOPRef</a>(m_remoteName, m_remoteName).call(<span class="stringliteral">"function"</span>, <a class="codeRef" doxygen="qt.tag:/usr/lib/qt3/doc/html/" href="/usr/lib/qt3/doc/html/qcstring.html">QCString</a>(name())).get(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" doxygen="qt.tag:/usr/lib/qt3/doc/html/" href="/usr/lib/qt3/doc/html/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" doxygen="qt.tag:/usr/lib/qt3/doc/html/" href="/usr/lib/qt3/doc/html/qcstring.html">QCString</a> myName = <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/classKApplication.html#70b63a8a22f2544d0e322fb6a4f2571b">KApplication::dcopClient</a>()-><a class="code" href="classDCOPClient.html#9efc2316a0980e5cff73b7c6b7a40d16" 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" doxygen="qt.tag:/usr/lib/qt3/doc/html/" href="/usr/lib/qt3/doc/html/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" doxygen="qt.tag:/usr/lib/qt3/doc/html/" href="/usr/lib/qt3/doc/html/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> </div></div> </td> </tr> <tr> <td valign="top" id="leftmenu" width="25%"> <a name="navigation"></a> <div class="menu_box"><h2>dcop</h2> <div class="nav_list"> <ul><li><a href="index.html">Main Page</a></li><li><a href="modules.html">Modules</a></li><li><a href="hierarchy.html">Class Hierarchy</a></li><li><a href="classes.html">Alphabetical List</a></li><li><a href="annotated.html">Class List</a></li><li><a href="files.html">File List</a></li><li><a href="functions.html">Class Members</a></li><li><a href="pages.html">Related Pages</a></li></ul> <!-- <h2>Class Picker</h2> <div style="text-align: center;"> <form 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