CartridgeSlotManager.hh

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#ifndef CARTRIDGESLOTMANAGER_HH
#define CARTRIDGESLOTMANAGER_HH

#include "noncopyable.hh"
#include "string_ref.hh"
#include <memory>

namespace openmsx {

class MSXMotherBoard;
class CartCmd;
class HardwareConfig;
class CartridgeSlotInfo;

class CartridgeSlotManager : private noncopyable
{
public:
        explicit CartridgeSlotManager(MSXMotherBoard& motherBoard);
        ~CartridgeSlotManager();

        static int getSlotNum(string_ref slot);

        void createExternalSlot(int ps);
        void createExternalSlot(int ps, int ss);
        void removeExternalSlot(int ps);
        void removeExternalSlot(int ps, int ss);
        void testRemoveExternalSlot(int ps, const HardwareConfig& allowed) const;
        void testRemoveExternalSlot(int ps, int ss, const HardwareConfig& allowed) const;

        // Query/allocate/free external slots
        void getSpecificSlot(unsigned slot, int& ps, int& ss) const;
        void getAnyFreeSlot(int& ps, int& ss) const;
        void allocateSlot(int ps, int ss, const HardwareConfig& hwConfig);
        void freeSlot(int ps, int ss, const HardwareConfig& hwConfig);

        // Allocate/free external primary slots
        void allocatePrimarySlot(int& ps, const HardwareConfig& hwConfig);
        void freePrimarySlot(int ps, const HardwareConfig& hwConfig);

        bool isExternalSlot(int ps, int ss, bool convert) const;

private:
        int getSlot(int ps, int ss) const;

        struct Slot {
                Slot();
                ~Slot();
                bool exists() const;
                bool used(const HardwareConfig* allowed = nullptr) const;

                std::unique_ptr<CartCmd> command;
                const HardwareConfig* config;
                unsigned useCount;
                int ps;
                int ss;
        };
        static const unsigned MAX_SLOTS = 16 + 4;
        Slot slots[MAX_SLOTS];
        MSXMotherBoard& motherBoard;
        const std::unique_ptr<CartCmd> cartCmd;
        const std::unique_ptr<CartridgeSlotInfo> extSlotInfo;
        friend class CartCmd;
        friend class CartridgeSlotInfo;
};

} // namespace openmsx

#endif