CMemoryChunk.cpp

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/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          http://www.mrpt.org/                          |
   |                                                                        |
   | Copyright (c) 2005-2017, Individual contributors, see AUTHORS file     |
   | See: http://www.mrpt.org/Authors - All rights reserved.                |
   | Released under BSD License. See details in http://www.mrpt.org/License |
   +------------------------------------------------------------------------+ */

#include "base-precomp.h"  // Precompiled headers

#include <mrpt/utils/CMemoryChunk.h>

using namespace mrpt::utils;

// This must be added to any CSerializable class implementation file.
IMPLEMENTS_SERIALIZABLE(CMemoryChunk, CSerializable, mrpt::utils)

/*---------------------------------------------------------------
                                                writeToStream
 ---------------------------------------------------------------*/
void CMemoryChunk::writeToStream(
        mrpt::utils::CStream& out, int* out_Version) const
{
        if (out_Version)
                *out_Version = 0;
        else
        {
                out << static_cast<uint64_t>(m_bytesWritten);
                if (m_bytesWritten)
                {
                        ASSERT_(m_memory.get())
                        out.WriteBuffer(m_memory.get(), m_bytesWritten);
                }
        }
}

/*---------------------------------------------------------------
                                                readFromStream
 ---------------------------------------------------------------*/
void CMemoryChunk::readFromStream(mrpt::utils::CStream& in, int version)
{
        switch (version)
        {
                case 0:
                {
                        uint64_t N;
                        in >> N;
                        resize(N);

                        m_bytesWritten = N;
                        m_position = 0;
                        if (N) in.ReadBuffer(m_memory.get(), N);
                }
                break;
                default:
                        MRPT_THROW_UNKNOWN_SERIALIZATION_VERSION(version)
        };
}