/*
 * Copyright 2002-2010, Haiku, Inc. All Rights Reserved.
 * Distributed under the terms of the MIT License.
 */
#ifndef _VOLUME_ROSTER_H
#define _VOLUME_ROSTER_H


#include <Application.h>
#include <SupportDefs.h>
#include <Volume.h>


class BVolume;
class BMessenger;


class BVolumeRoster {
public:
                                                                BVolumeRoster();
        virtual                                         ~BVolumeRoster();

                        status_t                        GetNextVolume(BVolume* volume);
                        void                            Rewind();

                        status_t                        GetBootVolume(BVolume* volume);

                        status_t                        StartWatching(
                                                                        BMessenger messenger = be_app_messenger);
                        void                            StopWatching();
                        BMessenger                      Messenger() const;

private:
        virtual void                            _SeveredVRoster1();
        virtual void                            _SeveredVRoster2();

private:
                        int32                           fCookie;
                                                                        // The iteration cookie for next_dev()
                                                                        // Initialized to 0
                        BMessenger*                     fTarget;
                                                                        // BMessenger referring to the target to
                                                                        // which the watching notification
                                                                        // messages are sent. The object is
                                                                        // allocated and owned by the roster,
                                                                        // or NULL if not watching.
                        uint32                          _reserved[3];
                                                                        // FBC
};


#endif  // _VOLUME_ROSTER_H