/* This file is part of VoltDB.
* Copyright (C) 2008-2010 VoltDB Inc.
*
* VoltDB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* VoltDB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with VoltDB. If not, see <http://www.gnu.org/licenses/>.
*/
package org.voltdb.network;
/**
* An interface for a stream to report how many bytes it has queued or dequed. Supply a negative number of bytes
* if necessary
*/
public interface QueueMonitor {
/**
* Indicates whether the write stream should signal backpressure
* @param bytes
* @return True if the write stream should signal backpressure and false otherwise.
*/
public boolean queue(int bytes);
}