DiskChanger.hh

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#ifndef DISKCHANGER_HH
#define DISKCHANGER_HH

#include "DiskContainer.hh"
#include "StateChangeListener.hh"
#include "serialize_meta.hh"
#include "span.hh"
#include <functional>
#include <memory>
#include <string>

namespace openmsx {

class CommandController;
class StateChangeDistributor;
class Scheduler;
class MSXMotherBoard;
class Reactor;
class Disk;
class DiskCommand;
class TclObject;
class DiskName;

class DiskChanger final : public DiskContainer, private StateChangeListener
{
public:
        DiskChanger(MSXMotherBoard& board,
                    std::string driveName,
                    bool createCmd = true,
                    bool doubleSidedDrive = true,
                    std::function<void()> preChangeCallback = {});
        DiskChanger(Reactor& reactor,
                    std::string driveName); // for virtual_drive
        ~DiskChanger() override;

        void createCommand();

        const std::string& getDriveName() const { return driveName; }
        const DiskName& getDiskName() const;
        bool peekDiskChanged() const { return diskChangedFlag; }
        void forceDiskChange() { diskChangedFlag = true; }
        Disk& getDisk() { return *disk; }

        // DiskContainer
        SectorAccessibleDisk* getSectorAccessibleDisk() override;
        const std::string& getContainerName() const override;
        bool diskChanged() override;
        int insertDisk(string_view filename) override;

        // for NowindCommand
        void changeDisk(std::unique_ptr<Disk> newDisk);

        // for DirAsDSK
        Scheduler* getScheduler() const { return scheduler; }
        bool isDoubleSidedDrive() const { return doubleSidedDrive; }

        template<typename Archive>
        void serialize(Archive& ar, unsigned version);

private:
        void init(const std::string& prefix, bool createCmd);
        void insertDisk(span<const TclObject> args);
        void ejectDisk();
        void sendChangeDiskEvent(span<std::string> args);

        // StateChangeListener
        void signalStateChange(const std::shared_ptr<StateChange>& event) override;
        void stopReplay(EmuTime::param time) override;

        Reactor& reactor;
        CommandController& controller;
        StateChangeDistributor* stateChangeDistributor;
        Scheduler* scheduler;
        std::function<void()> preChangeCallback;

        const std::string driveName;
        std::unique_ptr<Disk> disk;

        friend class DiskCommand;
        std::unique_ptr<DiskCommand> diskCommand; // must come after driveName
        const bool doubleSidedDrive; // for DirAsDSK

        bool diskChangedFlag;
};
SERIALIZE_CLASS_VERSION(DiskChanger, 2);

} // namespace openmsx

#endif