PrepackedBuffer.h

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/**********************************************************************
** This program is part of 'MOOSE', the
** Messaging Object Oriented Simulation Environment.
**           Copyright (C) 2003-2010 Upinder S. Bhalla. and NCBS
** It is made available under the terms of the
** GNU Lesser General Public License version 2.1
** See the file COPYING.LIB for the full notice.
**********************************************************************/

class PrepackedBuffer
{
    public:
        PrepackedBuffer( const char* data, unsigned int dataSize,
            unsigned int numEntries = 0 );

        PrepackedBuffer( const PrepackedBuffer& other );

        PrepackedBuffer( const char* buf );

        PrepackedBuffer();

        ~PrepackedBuffer();

        const char* data() const {
            return data_;
        }

        const char* operator[]( unsigned int index ) const;

        unsigned int dataSize() const {
            return dataSize_;
        }

        unsigned int size() const {
            return dataSize_ + 2 * sizeof( unsigned int );
        }

        unsigned int conv2buf( char* buf ) const;

        unsigned int numEntries() const {
            return numEntries_;
        }

        bool isVector() const {
            return numEntries_ > 0;
        }
    private:
        unsigned int dataSize_; // Size of data.
        unsigned int numEntries_; // Number of data entries, if array.
        unsigned int individualDataSize_; // size of each entry.
        char* data_; // Converted data.
};