dcop

dcop_deadlock_test.cpp

00001 /*****************************************************************
00002 
00003 Copyright (c) 2004 Waldo Bastian <bastian@kde.org>
00004  
00005 Permission is hereby granted, free of charge, to any person obtaining a copy
00006 of this software and associated documentation files (the "Software"), to deal
00007 in the Software without restriction, including without limitation the rights
00008 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00009 copies of the Software, and to permit persons to whom the Software is
00010 furnished to do so, subject to the following conditions:
00011  
00012 The above copyright notice and this permission notice shall be included in
00013 all copies or substantial portions of the Software.
00014  
00015 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00016 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00017 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
00018 AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
00019 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
00020 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00021  
00022 ******************************************************************
00023 */
00024 
00025 #include <dcop_deadlock_test.h>
00026 #include <dcopref.h>
00027 #include <qtimer.h>
00028 #include <sys/time.h>
00029 #include <sys/types.h>
00030 #include <unistd.h>
00031 #include <stdlib.h>
00032 
00033 MyDCOPObject::MyDCOPObject(const QCString &name, const QCString &remoteName) 
00034 : QObject(0, name), DCOPObject(name), m_remoteName(remoteName)
00035 {
00036   connect(&m_timer, SIGNAL(timeout()), this, SLOT(slotTimeout()));
00037 }
00038 
00039 bool MyDCOPObject::process(const QCString &fun, const QByteArray &data,
00040 QCString& replyType, QByteArray &replyData)
00041 {
00042   if (fun == "function(QCString)") {
00043     QDataStream args( data, IO_ReadOnly );
00044     args >>  m_remoteName;
00045 
00046     struct timeval tv;
00047     gettimeofday(&tv, 0);
00048 qWarning("%s: function('%s') %d:%06d", name(), m_remoteName.data(), tv.tv_sec % 100, tv.tv_usec);
00049 
00050     replyType = "QString";
00051     QDataStream reply( replyData, IO_WriteOnly );
00052     reply << QString("Hey");
00053     m_timer.start(1000, true);
00054     return true;
00055   }
00056   return DCOPObject::process(fun, data, replyType, replyData);
00057 }
00058 
00059 void MyDCOPObject::slotTimeout()
00060 {
00061     struct timeval tv;
00062     gettimeofday(&tv, 0);
00063 qWarning("%s: slotTimeout() %d:%06d", name(), tv.tv_sec % 100, tv.tv_usec);
00064 
00065   m_timer.start(1000, true);
00066   QString result;
00067   DCOPRef(m_remoteName, m_remoteName).call("function", QCString(name())).get(result);
00068     gettimeofday(&tv, 0);
00069 qWarning("%s: Got result '%s' %d:%06d", name(), result.latin1(), tv.tv_sec % 100, tv.tv_usec);
00070 }
00071 
00072 int main(int argc, char **argv)
00073 {
00074   QCString myName = KApplication::dcopClient()->registerAs("testdcop", false);
00075   KApplication app(argc, argv, "testdcop");
00076 
00077   qWarning("%d:I am '%s'", getpid(), app.dcopClient()->appId().data());
00078   
00079   if (myName == "testdcop")
00080   {
00081       system("./dcop_deadlock_test testdcop&");
00082   }
00083 
00084   QCString remoteApp;
00085   if (argc == 2)
00086   {
00087       remoteApp = argv[1];
00088   }
00089   MyDCOPObject myObject(app.dcopClient()->appId(), remoteApp);
00090 
00091   if (!remoteApp.isEmpty())
00092      myObject.slotTimeout();
00093   app.exec();
00094 }
00095 
00096 #include "dcop_deadlock_test.moc"
dcop

dcop_deadlock_test.cpp

dcop

API Reference
