/*
 * MemoryAccessSplitter.hh
 *
 *  Created on: 27 èþë. 2020 ã.
 *      Author: LeonidTitov
 */

#ifndef UMLIBRARY_DRIVER_MEMORYACCESSSPLITTER_HH_
#define UMLIBRARY_DRIVER_MEMORYACCESSSPLITTER_HH_

#include "../peripheral/IMemoryAccess.hh"
#include <cstddef>

namespace driver {

class MemoryAccessSplitter {
public:
    peripheral::IMemoryAccess & piece();
    peripheral::IMemoryAccess & remainder();

    MemoryAccessSplitter( peripheral::IMemoryAccess & memory, std::size_t piece_size );

private:

    class MemoryPiece : public peripheral::IMemoryAccess {
    public:
        bool read( char * data, std::size_t begin, std::size_t size );
        bool write( const char * data, std::size_t begin, std::size_t size );

        bool isReadComplete() const;
        bool isWriteComplete() const;

        std::size_t getCapacity() const;

        MemoryPiece( peripheral::IMemoryAccess &, std::size_t size, std::size_t offset );

    private:

        bool read_query;
        bool write_query;

        mutable bool read_complite;
        mutable bool write_complite;

        std::size_t size;
        std::size_t offset;

        peripheral::IMemoryAccess & memory;

    };

    MemoryPiece first_part;
    MemoryPiece second_part;

};

}

#endif /* UMLIBRARY_DRIVER_MEMORYACCESSSPLITTER_HH_ */