01: //The contents of this file are subject to the Mozilla Public License Version 1.1
02: //(the "License"); you may not use this file except in compliance with the
03: //License. You may obtain a copy of the License at http://www.mozilla.org/MPL/
04: //
05: //Software distributed under the License is distributed on an "AS IS" basis,
06: //WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
07: //for the specific language governing rights and
08: //limitations under the License.
09: //
10: //The Original Code is "The Columba Project"
11: //
12: //The Initial Developers of the Original Code are Frederik Dietz and Timo Stich.
13: //Portions created by Frederik Dietz and Timo Stich are Copyright (C) 2003.
14: //
15: //All Rights Reserved.
16:
17: package org.columba.core.base;
18:
19: public class Barrier {
20:
21: boolean open;
22:
23: public Barrier() {
24: this .open = false;
25: }
26:
27: public synchronized void join() {
28: while (!this .open) {
29: try {
30: wait();
31: } catch (InterruptedException e) {
32: e.printStackTrace();
33: }
34: }
35:
36: // Wake up the others!
37: notifyAll();
38: }
39:
40: public synchronized void open() {
41: this .open = true;
42: notifyAll();
43: }
44:
45: public void close() {
46: this .open = false;
47: }
48:
49: }
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