?? tevent.cxx
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/* ==================================================================== * The Vovida Software License, Version 1.0 * * Copyright (c) 2000 Vovida Networks, Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The names "VOCAL", "Vovida Open Communication Application Library", * and "Vovida Open Communication Application Library (VOCAL)" must * not be used to endorse or promote products derived from this * software without prior written permission. For written * permission, please contact vocal@vovida.org. * * 4. Products derived from this software may not be called "VOCAL", nor * may "VOCAL" appear in their name, without prior written * permission of Vovida Networks, Inc. * * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL VOVIDA * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * ==================================================================== * * This software consists of voluntary contributions made by Vovida * Networks, Inc. and many individuals on behalf of Vovida Networks, * Inc. For more information on Vovida Networks, Inc., please see * <http://www.vovida.org/>. * */static const char* const tEvent_cxx_Version = "$Id$";#include "Application.hxx"#include "EventObserver.hxx"#include "EventSubject.hxx"#include <string>#include <iostream>using namespace Vocal;using namespace Vocal::Process;using namespace Vocal::Behavioral;class Policy : public EventObserver<int>{ public: Policy( EventSubject<int> & es, int interest, const string & name ) : EventObserver<int>(es), interest_(interest), name_(name) { } ~Policy() { } bool interestedIn(const int & event) { return ( event < interest_ ); } void onEvent(int event) { cout << *this << ", Received event: " << event << endl; } ostream & writeTo(ostream & out) const { return ( out << name_ << ", interest = " << interest_ ); } private: int interest_; string name_; };class tEvent : public Application{ public: tEvent() { } ~tEvent() { } ReturnCode run(); };Application * Application::create(){ return ( new tEvent );}ReturnCodetEvent::run(){ EventSubject<int> subject; Policy policy0(subject, 10, "Policy0"), policy1(subject, 20, "Policy1"), policy2(subject, 50, "Policy2"); subject.attach(policy0); subject.attach(policy1); subject.attach(policy2); cout << subject << endl; subject.setEvent(1); subject.setEvent(11); subject.setEvent(21); subject.detach(policy2); cout << subject << endl; subject.setEvent(2); subject.setEvent(12); subject.setEvent(22); subject.detach(policy1); cout << subject << endl; subject.setEvent(3); subject.setEvent(13); subject.setEvent(23); subject.detach(policy0); cout << subject << endl; subject.setEvent(4); subject.setEvent(14); subject.setEvent(24); return ( SUCCESS );}int main(int argc, char ** argv, char ** arge){ return ( Application::main(argc, argv, arge) );}
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