KSG-Framework/InMemoryBuffer.h

#pragma once

#include "Reader.h"
#include "ReferenceCounter.h"
#include "Writer.h"

namespace Framework
{
    class InMemoryBuffer : public Reader,
                           public Writer,
                           public virtual ReferenceCounter
    {
    private:
        char** buffer;
        int readPos;
        int writePos;
        int numBuffers;
        int maxWritePos;

    public:
        DLLEXPORT InMemoryBuffer();
        DLLEXPORT ~InMemoryBuffer();
        //! Reads from the resource
        //! \param bytes An array to be filled with bytes from the resource
        //! \param len How many bytes should be read from the resource
        DLLEXPORT void lese(char* bytes, int len) override;
        //! Writes to the resource
        //! \param bytes An array containing the bytes to be written to the
        //! resource
        //! \param len How many bytes should be written to the resource
        DLLEXPORT void schreibe(const char* bytes, int len) override;
        //! Reads the next line of the resource
        //! \return The read line as Text with line break
        DLLEXPORT Text* leseZeile() override;
        //! Checks whether the resource has been fully read
        //!  return 1 if the resource has been fully read. 0 otherwise
        DLLEXPORT bool istEnde() const override;
        //! Sets the position of the byte to be read next
        //! \param pos The index of the byte
        //! \param ende 1 if the index counts from the end of the resource. 0 if
        //! the index counts from the beginning of the resource
        DLLEXPORT void setLPosition(__int64 pos, bool ende) override;
        //! Sets the position of the byte to be written next
        //! \param pos The index of the byte
        //! \param ende 1 if the index counts from the end of the resource. 0 if
        //! the index counts from the beginning of the resource
        DLLEXPORT void setSPosition(__int64 pos, bool ende) override;
        //! Returns the index of the byte from the resource that would be read next
        //! return -1 if an error occurred. Otherwise the position of the read pointer
        DLLEXPORT __int64 getLPosition() const override;
        //! Returns the index of the byte from the resource that would be written next
        //! return -1 if an error occurred. Otherwise the position of the write pointer
        DLLEXPORT __int64 getSPosition() const override;
        //! Returns the number of bytes to be read
        DLLEXPORT __int64 getSize() const override;
    };
} // namespace Framework