2 * Copyright (c) 2003-2007 Sun Microsystems, Inc. All rights reserved.
4 * The Sun Project JXTA(TM) Software License
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
9 * 1. Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright notice,
13 * this list of conditions and the following disclaimer in the documentation
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16 * 3. The end-user documentation included with the redistribution, if any, must
17 * include the following acknowledgment: "This product includes software
18 * developed by Sun Microsystems, Inc. for JXTA(TM) technology."
19 * Alternately, this acknowledgment may appear in the software itself, if
20 * and wherever such third-party acknowledgments normally appear.
22 * 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must
23 * not be used to endorse or promote products derived from this software
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25 * Project JXTA at http://www.jxta.org.
27 * 5. Products derived from this software may not be called "JXTA", nor may
28 * "JXTA" appear in their name, without prior written permission of Sun.
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44 * Please see the license information page at :
45 * <http://www.jxta.org/project/www/license.html> for instructions on use of
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48 * ====================================================================
50 * This software consists of voluntary contributions made by many individuals
51 * on behalf of Project JXTA. For more information on Project JXTA, please see
52 * http://www.jxta.org.
54 * This license is based on the BSD license adopted by the Apache Foundation.
57 package net.jxta.impl.util.pipe.reliable;
60 public class FixedFlowControl extends FlowControl {
62 static final int DEFAULT_RWINDOW = 5;
67 * Constructs a fixed flow control module with a fixed rwindow of
68 * DEFAULT_RWINDOW. It is not completely fixed. It grows by one
69 * at every ack message until it reaches the set RWINDOW.
71 public FixedFlowControl() {
72 this(DEFAULT_RWINDOW);
76 * @param rwindow Use the specified value as the constant rwindow
78 public FixedFlowControl(int rwindow) {
79 this.maxRwindow = rwindow;
86 public int getRwindow() {
94 public int ackEventEnd(int rQSize, long aveRTT, long lastRTT) {
95 if (rwindow < maxRwindow) {