Service.h

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/*
 * Service.h
 *
 *  This file is part of the HausmiSEP project
 *
 *  Copyright (C) 2012, 2013 Marco Alvarado (malvcr@gmail.com)
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  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 for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef SERVICE_H_
#define SERVICE_H_

#include <HSEP/Thread.h>

#include <string>
#include <fstream>

using namespace std;

namespace HSEP {

    class ServiceThread : public Thread {
        fstream* aServiceLogPtr; 
        string   aName;       
        string   aStatus;     
    protected:
        virtual bool prepare();
        virtual void dispose();

    public:
        ServiceThread(
            string     pName
        );
        virtual ~ServiceThread();

        const string& statusRef() const {
            return aStatus;
        }

        void log(string pData);

    }; // Service Thread class

    class ServiceThreadFactory {
    public:
        virtual ~ServiceThreadFactory() {}

        virtual ServiceThread* createPtr() = 0;
    }; // ServiceThreadFactory class

    class Service {

        static ServiceThread* aThreadInstance;
        bool   aTerminate; /*< controls the body internal cycle for external control procedures */
        Mutex  aTermMutex;

    protected:

        int aPid; 
        int aSid; 
        string aName;

        friend void TerminateHandler(int pSignal);

        bool _continue();

    public:
        Service(
            string                pName,
            ServiceThreadFactory& pServiceThreadFactory
        );
        virtual ~Service();

        int body();

        void finish();

    }; // Service class

} // HSEP namespace

#endif /* SERVICE_H_ */