AbstractWorker.h

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/*
 * AbstractWorker.h
 *
 * Copyright (C) 2011 IBR, TU Braunschweig
 *
 * Written-by: Johannes Morgenroth <morgenroth@ibr.cs.tu-bs.de>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

#ifndef ABSTRACTWORKER_H_
#define ABSTRACTWORKER_H_

#include <ibrdtn/data/Bundle.h>
#include <ibrdtn/data/BundleID.h>
#include <ibrdtn/data/EID.h>
#include "core/EventReceiver.h"
#include <ibrcommon/thread/Mutex.h>
#include <ibrcommon/thread/Conditional.h>
#include <ibrcommon/thread/Thread.h>
#include "net/ConvergenceLayer.h"

#include <ibrcommon/thread/Queue.h>
#include <set>

using namespace dtn::data;

namespace dtn
{
        namespace core
        {
                class AbstractWorker : public ibrcommon::Mutex
                {
                        class AbstractWorkerAsync : public ibrcommon::JoinableThread, public dtn::core::EventReceiver
                        {
                        public:
                                AbstractWorkerAsync(AbstractWorker &worker);
                                virtual ~AbstractWorkerAsync();

                                void initialize();
                                void shutdown();

                                virtual void raiseEvent(const dtn::core::Event *evt) throw ();

                        protected:
                                void run() throw ();
                                void __cancellation() throw ();

                        private:
                                void prepareBundle(dtn::data::Bundle &bundle) const;

                                AbstractWorker &_worker;
                                bool _running;

                                ibrcommon::Queue<dtn::data::BundleID> _receive_bundles;
                        };

                        public:
                                AbstractWorker();

                                virtual ~AbstractWorker();

                                virtual const EID getWorkerURI() const;

                                virtual void callbackBundleReceived(const Bundle &b) = 0;

                        protected:
                                void initialize(const std::string &uri);
                                void transmit(const Bundle &bundle);

                                dtn::data::EID _eid;

                                void shutdown();

                                void subscribe(const dtn::data::EID &endpoint);

                                void unsubscribe(const dtn::data::EID &endpoint);

                        private:
                                AbstractWorkerAsync _thread;
                                std::set<dtn::data::EID> _groups;
                };
        }
}

#endif /*ABSTRACTWORKER_H_*/