vstreamcopier.h

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/*
Copyright c1997-2014 Trygve Isaacson. All rights reserved.
This file is part of the Code Vault version 4.1
http://www.bombaydigital.com/
License: MIT. See LICENSE.md in the Vault top level directory.
*/

#ifndef vstreamcopier_h
#define vstreamcopier_h

#include "vtypes.h"

class VStream;
class VIOStream;

class VStreamCopier {
    public:

        VStreamCopier();
        VStreamCopier(int chunkSize, VStream* from, VStream* to);
        VStreamCopier(int chunkSize, VIOStream* from, VIOStream* to);
        VStreamCopier(int chunkSize, VStream* from, VIOStream* to);
        VStreamCopier(int chunkSize, VIOStream* from, VStream* to);
        virtual ~VStreamCopier() {}

        void init(int chunkSize, VStream* from, VStream* to);
        void init(int chunkSize, VIOStream* from, VIOStream* to);
        void init(int chunkSize, VStream* from, VIOStream* to);
        void init(int chunkSize, VIOStream* from, VStream* to);

        bool copyChunk();
        Vs64 numBytesCopied() const;

    private:

        VStreamCopier(const VStreamCopier&); // not copyable
        VStreamCopier& operator=(const VStreamCopier&); // not assignable

        int         mChunkSize;         
        VStream*    mFrom;              
        VStream*    mTo;                
        Vs64        mNumBytesCopied;    
};

#endif /* vstreamcopier_h */