/* For testing the workspace synchronization features.
Copyright (c) 2003-2005 The Regents of the University of California.
All rights reserved.
Permission is hereby granted, without written agreement and without
license or royalty fees, to use, copy, modify, and distribute this
software and its documentation for any purpose, provided that the above
copyright notice and the following two paragraphs appear in all copies
of this software.
IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
ENHANCEMENTS, OR MODIFICATIONS.
PT_COPYRIGHT_VERSION_2
COPYRIGHTENDKEY
*/
package ptolemy.kernel.util.test;
import java.util.LinkedList;
import java.util.List;
import ptolemy.kernel.util.Workspace;
//////////////////////////////////////////////////////////////////////////
//// TestWorkspace6
/**
Test the following scenario: thread T1 gets read access twice, then waits
on a lock object (and in doing so, releases the read access); T2 gets/releases
write access; T1 is interrupted, and reacquires read access.
@author Xiaojun Liu
@version $Id: TestWorkspace6.java,v 1.15 2005/07/08 19:59:22 cxh Exp $
@since Ptolemy II 3.0
@Pt.ProposedRating Green (eal)
@Pt.AcceptedRating Red (cxh)
*/
public class TestWorkspace6 extends TestWorkspaceBase {
public static void main(String[] args) {
TestWorkspace6 tw = new TestWorkspace6();
tw.runTest();
}
public void initializeTest() {
Workspace workspace = new Workspace();
List actions = new LinkedList();
AccessAction action = new AccessAction(workspace, 0, 'R', 0, null,
_record, "A0");
actions.add(action);
action = new AccessAction(workspace, 0, 'R', 0, null, _record, "A1");
actions.add(action);
action = new AccessAction(workspace, 0, 'U', 0, new Object(), _record,
"A2");
actions.add(action);
_thread = new AccessThread("T1", actions, this);
_accessThreads.add(_thread);
actions = new LinkedList();
action = new AccessAction(workspace, 500, 'W', 500, null, _record, "A3");
actions.add(action);
_accessThreads.add(new AccessThread("T2", actions, this));
_testTime = 5000; // ms
}
public void runTest() {
(new Thread() {
public void run() {
try {
sleep(1000);
} catch (InterruptedException e) {
// ignore
}
// interrupt T2 while it is waiting for read access
_thread.interrupt();
}
}).start();
super.runTest();
}
private Thread _thread;
}