Bus.h

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/* ============================================================
 *
 * This file is part of the RSB project
 *
 * Copyright (C) 2011, 2012 Jan Moringen <jmoringe@techfak.uni-bielefeld.de>
 *
 * This file may be licensed under the terms of the
 * GNU Lesser General Public License Version 3 (the ``LGPL''),
 * or (at your option) any later version.
 *
 * Software distributed under the License is distributed
 * on an ``AS IS'' basis, WITHOUT WARRANTY OF ANY KIND, either
 * express or implied. See the LGPL for the specific language
 * governing rights and limitations.
 *
 * You should have received a copy of the LGPL along with this
 * program. If not, go to http://www.gnu.org/licenses/lgpl.html
 * or write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The development of this software was supported by:
 *   CoR-Lab, Research Institute for Cognition and Robotics
 *     Bielefeld University
 *
 * ============================================================ */

#pragma once

#include <map>
#include <list>

#include <boost/shared_ptr.hpp>
#include <boost/thread/recursive_mutex.hpp>

#include <rsc/logging/Logger.h>
#include <rsc/patterns/Singleton.h>

#include "../../Event.h"
#include "../../Scope.h"

#include "../../eventprocessing/Handler.h"

#include "rsb/rsbexports.h"

namespace rsb {
namespace transport{
namespace inprocess {

class InConnector;
typedef boost::shared_ptr<InConnector> InConnectorPtr;

class RSB_EXPORT Bus: public eventprocessing::Handler {
public:
    Bus();
    virtual ~Bus();

    //void printContents(std::ostream& stream) const;

    void addSink(InConnectorPtr sink);
    void removeSink(InConnector* sink);

    void handle(EventPtr event);
private:
    void handleNoLock(EventPtr event);

    typedef std::list< boost::weak_ptr<InConnector> > SinkList;
    typedef std::map<Scope, SinkList> SinkMap;

    rsc::logging::LoggerPtr logger;

    SinkMap sinks;
    boost::recursive_mutex mutex;

    bool singleThreaded;
};

typedef boost::shared_ptr<Bus> BusPtr;

RSB_EXPORT BusPtr getDefaultBus();

}
}
}