root/trunk/freebob/src/avdevicepool.h

/* avdevicepool.h
 * Copyright (C) 2004 by Daniel Wagner
 *
 * This file is part of FreeBob.
 *
 * FreeBob 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 2 of the License, or
 * (at your option) any later version.
 * FreeBob 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 FreeBob; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA.
 */
#ifndef AVDEVICEPOOL_H
#define AVDEVICEPOOL_H

#include "freebob.h"
#include <vector>
#include <libraw1394/raw1394.h> // octlet_t

class AvDevice;

class AvDevicePool {
 public:
    static AvDevicePool* instance();

    FBReturnCodes registerAvDevice( AvDevice* pAvDevice );
    FBReturnCodes unregisterAvDevice( AvDevice* pAvDevice );

    AvDevice* getAvDevice( octlet_t oGuid );

    /**
     * Remove devices in pool which where (physically) removed 
     * from the bus.
     *
     * All devices which have a lower generation count smaller
     * than iGeneration are removed from the pool
     *
     * @param iGeneration Current generation count.
     * @return see FBReturnCodes.
     */
    FBReturnCodes removeObsoleteDevices( unsigned int iGeneration );
 private:
    AvDevicePool();
    ~AvDevicePool();

    static AvDevicePool* m_pInstance;

    typedef std::vector< AvDevice* > AvDeviceVector;
    AvDeviceVector m_avDevices;
};

#endif