CMRPTMessage.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/CSerializable.h>
#include <mrpt/utils/CMessage.h>
#include <mrpt/system/os.h>
#include <mrpt/utils/CMemoryStream.h>
#include <cstring>

using namespace mrpt::utils;

/*---------------------------------------------------------------
                                        serializeObject
 ---------------------------------------------------------------*/
void  CMessage::serializeObject( CSerializable *obj )
{
        MRPT_START
        CMemoryStream           auxStream;

        // Dump the object in the memory stream:
        auxStream.WriteObject( obj );

        // Copy data to message:
        content.resize( auxStream.getTotalBytesCount() );
        memcpy(
                &content[0],                                    // Dest
                auxStream.getRawBufferData(),   // Src
                content.size() );

        MRPT_END
}

/*---------------------------------------------------------------
                                deserializeIntoExistingObject
 ---------------------------------------------------------------*/
void  CMessage::deserializeIntoExistingObject( CSerializable *obj )
{
        MRPT_START
        CMemoryStream           auxStream;

        // Copy data into the stream:
        auxStream.WriteBuffer( &content[0], content.size() );
        auxStream.Seek(0);

        // Try to parse data into existing object:
        auxStream.ReadObject( obj );

        MRPT_END
}

/*---------------------------------------------------------------
                                deserializeIntoNewObject
 ---------------------------------------------------------------*/
void  CMessage::deserializeIntoNewObject( CSerializablePtr &obj )
{
        MRPT_START
        CMemoryStream           auxStream;

        // Copy data into the stream:
        if (!content.empty())
        {
                auxStream.WriteBuffer( &content[0], content.size() );
                auxStream.Seek(0);

                // Try to parse data into a new object:
                obj = auxStream.ReadObject( );
        }
        else obj.clear_unique();


        MRPT_END
}

/*---------------------------------------------------------------
                                setContentFromString
 ---------------------------------------------------------------*/
void  CMessage::setContentFromString( const std::string &str )
{
        content.resize( str.size() );
        if (content.size()>0)
                memcpy( &content[0], str.c_str(), str.size() );
}

/*---------------------------------------------------------------
                                getContentAsString
 ---------------------------------------------------------------*/
void  CMessage::getContentAsString( std::string &str )
{
        str.resize( content.size() );
        if (content.size()>0)
                memcpy( &str[0], &content[0], str.size() );
}

/*---------------------------------------------------------------
                                setContentFromPointer
 ---------------------------------------------------------------*/
void  CMessage::setContentFromPointer( void * ptr )
{
        content.resize( sizeof(void*) );
        void ** ptrPtr = reinterpret_cast<void**>( &content[0] );
        *ptrPtr = ptr;
}

/*---------------------------------------------------------------
                                getContentAsPointer
 ---------------------------------------------------------------*/
void *CMessage::getContentAsPointer() const
{
        MRPT_START
        ASSERT_( content.size() == sizeof(void*) );

        return * reinterpret_cast<void**>(  const_cast<unsigned char*>( &content[0] ) ) ;

        MRPT_END
}