Example #1
0
bool ObjectCM::sendSync( const MasterCMCommand& command )
{
    lunchbox::ScopedFastWrite mutex( _lock );
    if( !_object )
    {
        LBWARN << "Sync from detached object requested" << std::endl;
        return false;
    }

    const uint128_t& maxCachedVersion = command.getMaxCachedVersion();
    const bool useCache =
        command.useCache() &&
        command.getMasterInstanceID() == _object->getInstanceID() &&
        maxCachedVersion == getVersion();

    if( !useCache )
    {
        ObjectInstanceDataOStream os( this );
        os.enableSync( getVersion(), command );
        _object->getInstanceData( os );
        os.disable();
    }
    NodePtr node = command.getNode();
    node->send( CMD_NODE_SYNC_OBJECT_REPLY, useCache /*preferMulticast*/ )
        << node->getNodeID() << command.getObjectID() << command.getRequestID()
        << true << command.useCache() << useCache;
    return true;
}
Example #2
0
void ObjectCM::_addSlave( MasterCMCommand command, const uint128_t& version )
{
    LBASSERT( version != VERSION_NONE );
    LBASSERT( command.getType() == COMMANDTYPE_NODE );
    LBASSERT( command.getCommand() == CMD_NODE_MAP_OBJECT );

    // process request
    if( command.getRequestedVersion() == VERSION_NONE )
    {
        // no data to send, send empty version
        _sendMapSuccess( command, false /* mc */ );
        _sendEmptyVersion( command, VERSION_NONE, false /* mc */ );
        _sendMapReply( command, VERSION_NONE, true, false, false /* mc */ );

        return;
    }

    const bool replyUseCache = command.useCache() &&
                   (command.getMasterInstanceID() == _object->getInstanceID( ));
    _initSlave( command, version, replyUseCache );
}
Example #3
0
bool FullMasterCM::sendSync( const MasterCMCommand& command )
{
    //const uint128_t& version = command.getRequestedVersion();
    const uint128_t& maxCachedVersion = command.getMaxCachedVersion();
    const bool useCache =
        command.useCache() &&
        command.getMasterInstanceID() == _object->getInstanceID() &&
        maxCachedVersion == _version;

    if( !useCache )
    {
        Mutex mutex( _slaves );
        InstanceData* instanceData = _instanceDatas.back();
        instanceData->os.sync( command );
    }

    NodePtr node = command.getNode();
    node->send( CMD_NODE_SYNC_OBJECT_REPLY, useCache /*preferMulticast*/ )
        << node->getNodeID() << command.getObjectID() << command.getRequestID()
        << true << command.useCache() << useCache;
    return true;
}