fluxengine/lib/fluxsource/fluxsource.h

#ifndef FLUXSOURCE_H
#define FLUXSOURCE_H

#include "flags.h"

class A2rFluxSourceProto;
class CwfFluxSourceProto;
class DiskFlux;
class EraseFluxSourceProto;
class Fl2FluxSourceProto;
class FluxSourceProto;
class FluxSpec;
class Fluxmap;
class HardwareFluxSourceProto;
class KryofluxFluxSourceProto;
class ScpFluxSourceProto;
class TestPatternFluxSourceProto;
class FlxFluxSourceProto;

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

    virtual bool hasNext() const = 0;
    virtual std::unique_ptr<const Fluxmap> next() = 0;
};

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

private:
    static std::unique_ptr<FluxSource> createA2rFluxSource(
        const A2rFluxSourceProto& config);
    static std::unique_ptr<FluxSource> createCwfFluxSource(
        const CwfFluxSourceProto& config);
    static std::unique_ptr<FluxSource> createEraseFluxSource(
        const EraseFluxSourceProto& config);
    static std::unique_ptr<FluxSource> createFl2FluxSource(
        const Fl2FluxSourceProto& config);
    static std::unique_ptr<FluxSource> createFlxFluxSource(
        const FlxFluxSourceProto& config);
    static std::unique_ptr<FluxSource> createHardwareFluxSource(
        const HardwareFluxSourceProto& config);
    static std::unique_ptr<FluxSource> createKryofluxFluxSource(
        const KryofluxFluxSourceProto& config);
    static std::unique_ptr<FluxSource> createScpFluxSource(
        const ScpFluxSourceProto& config);
    static std::unique_ptr<FluxSource> createTestPatternFluxSource(
        const TestPatternFluxSourceProto& config);

public:
    static std::unique_ptr<FluxSource> createMemoryFluxSource(
        const DiskFlux& flux);

    static std::unique_ptr<FluxSource> create(const FluxSourceProto& spec);
    static void updateConfigForFilename(
        FluxSourceProto* proto, const std::string& filename);

public:
    virtual std::unique_ptr<FluxSourceIterator> readFlux(
        int track, int side) = 0;
    virtual void recalibrate() {}
    virtual void seek(int track) {}
    virtual bool isHardware()
    {
        return false;
    }
};

class EmptyFluxSourceIterator : public FluxSourceIterator
{
    bool hasNext() const override
    {
        return false;
    }

    std::unique_ptr<const Fluxmap> next() override
    {
        error("no flux to read");
    }
};

class TrivialFluxSource : public FluxSource
{
public:
    std::unique_ptr<FluxSourceIterator> readFlux(int track, int side);
    virtual std::unique_ptr<const Fluxmap> readSingleFlux(
        int track, int side) = 0;
};

#endif