SocketProvider.h

/******************************************************************************
Este arquivo eh parte da implementacao do ambiente declarativo do middleware
Ginga (Ginga-NCL).

Direitos Autorais Reservados (c) 1989-2007 PUC-Rio/Laboratorio TeleMidia

Este programa eh software livre; voce pode redistribui-lo e/ou modificah-lo sob
os termos da Licenca Publica Geral GNU versao 2 conforme publicada pela Free
Software Foundation.

Este programa eh distribuido na expectativa de que seja util, porem, SEM
NENHUMA GARANTIA; nem mesmo a garantia implicita de COMERCIABILIDADE OU
ADEQUACAO A UMA FINALIDADE ESPECIFICA. Consulte a Licenca Publica Geral do
GNU versao 2 para mais detalhes.

Voce deve ter recebido uma copia da Licenca Publica Geral do GNU versao 2 junto
com este programa; se nao, escreva para a Free Software Foundation, Inc., no
endereco 59 Temple Street, Suite 330, Boston, MA 02111-1307 USA.

Para maiores informacoes:
ncl @ telemidia.puc-rio.br
http://www.ncl.org.br
http://www.ginga.org.br
http://www.telemidia.puc-rio.br
******************************************************************************
This file is part of the declarative environment of middleware Ginga (Ginga-NCL)

Copyright: 1989-2007 PUC-RIO/LABORATORIO TELEMIDIA, All Rights Reserved.

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License version 2 as published by
the Free Software Foundation.

This program 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 General Public License version 2 for more
details.

You should have received a copy of the GNU General Public License version 2
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA

For further information contact:
ncl @ telemidia.puc-rio.br
http://www.ncl.org.br
http://www.ginga.org.br
http://www.telemidia.puc-rio.br
*******************************************************************************/

#ifndef SOCKETPROVIDER_H_
#define SOCKETPROVIDER_H_

#include "IDataProvider.h"

namespace br {
namespace pucrio {
namespace telemidia {
namespace ginga {
namespace core {
namespace tuning {
    class SocketProvider : public IDataProvider {
        protected:
            string addr;
            int portNumber;
            int socketDescriptor;
            short capabilities;

        public:
            virtual ~SocketProvider(){};

            virtual void setListener(ITProviderListener* listener){};
            virtual void attachFilter(IFrontendFilter* filter){};
            virtual void removeFilter(IFrontendFilter* filter){};

            virtual short getCaps() {
                return capabilities;
            };

            virtual bool tune() {
                if (callServer() > 0) {
                    return true;
                }

                return false;
            };

            virtual IChannel* getCurrentChannel() {
                return NULL;
            }

            virtual bool getSTCValue(uint64_t* stc, int* valueType) {
                return false;
            }

            virtual bool changeChannel(int factor) {
                return false;
            }

            bool setChannel(string channelValue) {
                return false;
            }

            virtual int createPesFilter(
                    int pid, int pesType, bool compositeFiler) {

                return -1;
            }

            virtual string getPesFilterOutput() {
                return "";
            }

            virtual void close() {
                ::close(socketDescriptor);
            };

            virtual int callServer()=0;
            virtual int receiveData(char* buff, int skipSize, unsigned char packetSize)=0;
    };
}
}
}
}
}
}

#endif /*SOCKETPROVIDER_H_*/