/* 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;
//////////////////////////////////////////////////////////////////////////
//// TestWorkspace4
/**
Test the following scenario: thread T1 gets write access; T2 waits
for read access and is interrupted, then waits for read access again;
T1 releases write access; T2 gets/releases read access; another thread
T3 gets write access; T2 handles failure (being interrupted) in getting
read access.
@author Xiaojun Liu
@version $Id: TestWorkspace4.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 TestWorkspace4 extends TestWorkspaceBase {
public void initializeTest() {
Workspace workspace = new Workspace();
List actions = new LinkedList();
AccessAction action = new AccessAction(workspace, 0, 'W', 1000, null,
_record, "A0");
actions.add(action);
_accessThreads.add(new AccessThread("T1", actions, this));
actions = new LinkedList();
action = new AccessAction(workspace, 500, 'R', 500, null, _record, "A2");
actions.add(action);
action = new AccessAction(workspace, 0, 'R', 0, null, _record, "A3");
actions.add(action);
_thread = new AccessThread("T2", actions, this);
_accessThreads.add(_thread);
actions = new LinkedList();
action = new AccessAction(workspace, 2200, 'W', 100, null, _record,
"A1");
actions.add(action);
_accessThreads.add(new AccessThread("T3", 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;
}