bool ObjectDataIStream::getNextBuffer( uint32_t& compressor, uint32_t& nChunks,
const void** chunkData, uint64_t& size )
{
if( _commands.empty( ))
{
_usedCommand.clear();
return false;
}
_usedCommand = _commands.front();
_commands.pop_front();
if( !_usedCommand.isValid( ))
return false;
LBASSERT( _usedCommand.getCommand() == CMD_OBJECT_INSTANCE ||
_usedCommand.getCommand() == CMD_OBJECT_DELTA ||
_usedCommand.getCommand() == CMD_OBJECT_SLAVE_DELTA );
ObjectDataICommand command( _usedCommand );
const uint64_t dataSize = command.getDataSize();
if( dataSize == 0 ) // empty command
return getNextBuffer( compressor, nChunks, chunkData, size );
size = dataSize;
compressor = command.getCompressor();
nChunks = command.getChunks();
switch( command.getCommand( ))
{
case CMD_OBJECT_INSTANCE:
command.get< NodeID >(); // nodeID
command.get< uint32_t >(); // instanceID
break;
case CMD_OBJECT_SLAVE_DELTA:
command.get< UUID >(); // commit UUID
break;
}
*chunkData = command.getRemainingBuffer( command.getRemainingBufferSize( ));
setSwapping( command.isSwapping( ));
return true;
}
DataIStream& DataIStream::operator = ( const DataIStream& rhs )
{
_reset();
setSwapping( rhs.isSwapping( ));
return *this;
}
