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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2013-2014 Regents of the University of California.
*
* This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
*
* ndn-cxx 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 3 of the License, or (at your option) any later version.
*
* ndn-cxx 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 copies of the GNU General Public License and GNU Lesser
* General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
* <http://www.gnu.org/licenses/>.
*
* See AUTHORS.md for complete list of ndn-cxx authors and contributors.
*
* @author Alexander Afanasyev <http://lasr.cs.ucla.edu/afanasyev/index.html>
*/
// correct way to include ndn-cxx headers
// #include <ndn-cxx/face.hpp>
// #include <ndn-cxx/util/scheduler.hpp>
#include "face.hpp"
#include "util/scheduler.hpp"
// Enclosing code in ndn simplifies coding (can also use `using namespace ndn`)
namespace ndn {
// Additional nested namespace could be used to prevent/limit name contentions
namespace examples {
void
onData(Face& face,
const Interest& interest, Data& data)
{
std::cout << "I: " << interest.toUri() << std::endl;
std::cout << "D: " << data.getName().toUri() << std::endl;
}
void
onTimeout(Face& face,
const Interest& interest)
{
std::cout << "Timeout" << std::endl;
}
void
delayedInterest(Face& face)
{
std::cout << "One more Interest, delayed by the scheduler" << std::endl;
Interest i(Name("/example/testApp/randomData"));
i.setScope(1);
i.setInterestLifetime(time::milliseconds(1000));
i.setMustBeFresh(true);
face.expressInterest(i,
bind(&onData, ref(face), _1, _2),
bind(&onTimeout, ref(face), _1));
}
int
main(int argc, char** argv)
{
try {
// Explicitly create io_service object, which can be shared between Face and Scheduler
boost::asio::io_service ioService;
Interest i(Name("/example/testApp/randomData"));
i.setScope(1);
i.setInterestLifetime(time::seconds(1));
i.setMustBeFresh(true);
// Create face with io_service object
Face face(ioService);
face.expressInterest(i,
bind(&onData, ref(face), _1, _2),
bind(&onTimeout, ref(face), _1));
// Create scheduler object
Scheduler scheduler(ioService);
// Schedule a new event
scheduler.scheduleEvent(time::seconds(2),
bind(&delayedInterest, ref(face)));
// ioService.run() will block until all events finished or ioService.stop() is called
ioService.run();
// Alternatively, a helper face.processEvents() also can be called
// processEvents will block until the requested data received or timeout occurs
// face.processEvents();
}
catch(std::exception& e) {
std::cerr << "ERROR: " << e.what() << std::endl;
}
return 0;
}
} // namespace examples
} // namespace ndn
int
main(int argc, char** argv)
{
return ndn::examples::main(argc, argv);
}