///////////////////////////////////////////////////////////////////////////////
// MQ4CPP - Message queuing for C++
// Copyright (C) 2004-2007 Riccardo Pompeo (Italy)
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
#include "Logger.h"
#include "Timer.h"
#include <string>
#include <strstream>
using namespace std;
class MyMessage : public Message
{
protected:
string itsBuffer;
public:
MyMessage() : Message("MyMessage") {};
MyMessage(MyMessage& o) : Message("MyMessage")
{
itsBuffer=o.itsBuffer;
itsSender=o.itsSender;
};
virtual ~MyMessage() {};
void set(char* theBuffer) { itsBuffer=theBuffer; };
virtual void toStream(ostream& theStream) { theStream << itsBuffer; };
virtual string toString() { return itsBuffer; };
virtual Message* clone() { return new MyMessage(*this); }; // ++ v1.5
};
class MyClient : protected MessageQueue
{
protected:
unsigned itsCounter;
public:
MyClient() : MessageQueue("MyClient")
{
SCHEDULE(this,500);
itsCounter=0;
};
virtual ~MyClient() {};
protected:
virtual void onMessage(Message* theMessage)
{
if(theMessage->is("Wakeup"))
{
Wakeup* aWakeup=(Wakeup*)theMessage;
ostrstream aStream;
aStream << "MyClient wakeup at ";
aStream << aWakeup->getTime() << ends;
char* aString=aStream.str();
TRACE(aString)
LOG(aString)
delete [] aString;
ostrstream aStream1;
aStream1 << "Message n.";
aStream1 << ++itsCounter << ends;
char* aString1=aStream1.str();
MyMessage* aMessage=new MyMessage();
aMessage->setSender(getID());
aMessage->set(aString1);
broadcast(aMessage);
delete [] aString1;
}
else
{
TRACE("Unhandled message=" << theMessage->getClass())
}
};
};
class MyServerA : protected MessageQueue
{
public:
MyServerA(): MessageQueue("MyServerA") {};
virtual ~MyServerA() {};
protected:
virtual void onMessage(Message* theMessage)
{
if(theMessage->is("MyMessage"))
{
MyMessage* aMessage=(MyMessage*)theMessage;
ostrstream aStream;
aStream << "MyServerA receive <";
aStream << aMessage->toString() << ">" << ends;
char* aString=aStream.str();
TRACE(aString)
LOG(aString)
delete [] aString;
}
};
};
class MyServerB : protected MessageQueue
{
public:
MyServerB(): MessageQueue("MyServerB") {};
virtual ~MyServerB() {};
protected:
virtual void onMessage(Message* theMessage)
{
if(theMessage->is("MyMessage"))
{
MyMessage* aMessage=(MyMessage*)theMessage;
ostrstream aStream;
aStream << "MyServerB receive <";
aStream << aMessage->toString() << ">" << ends;
char* aString=aStream.str();
TRACE(aString)
LOG(aString)
delete [] aString;
}
};
};
int main()
{
DISPLAY("MQ4CPP example2.cpp")
DISPLAY("This example shows how to broadcast messages")
LOG("!!!!!!! example2.cpp !!!!!!!")
try
{
DISPLAY("Starting client and server threads...")
MyServerA* aServerA=new MyServerA();
MyServerB* aServerB=new MyServerB();
MyClient* aClient=new MyClient();
DISPLAY("...wait 20 secs...")
Thread::sleep(20*1000);
DISPLAY("...stopping threads...")
Thread::shutdownInProgress();
STOPLOGGER()
STOPREGISTRY()
STOPTIMER()
}
catch(Exception& ex)
{
TRACE(ex.getMessage().c_str())
}
catch(...)
{
TRACE("Unhandled exception")
}
DISPLAY("...done!")
DISPLAY("See messages.log for details")
return 0;
}
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