247 lines
8.7 KiB
Java
247 lines
8.7 KiB
Java
/*
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* Copyright (c) 2006, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package nsk.share.jdi;
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import java.io.*;
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import java.util.*;
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import nsk.share.locks.LockingThread;
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import nsk.share.TestBug;
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/*
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* Class is used as base debuggee in tests for ThreadReference.ownedMonitorsAndFrames().
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*
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* Class handle commands for creating threads which acquires and relinquish locks in different ways,
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* nsk.share.locks.LockingThread is used for this purposes.
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*
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* Information about acquired monitors can be stored in static array 'monitorsInfo' and in this way this
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* data is available for debugger.
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*/
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public class OwnedMonitorsDebuggee extends AbstractJDIDebuggee {
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// command:threadName:stackFrameDescription
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public static final String COMMAND_CREATE_LOCKING_THREAD = "createLockingThread";
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// command:threadName
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public static final String COMMAND_STOP_LOCKING_THREAD = "stopLockingThread";
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// command:threadName
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public static final String COMMAND_UPDATE_MONITOR_INFO = "updateMonitorInfo";
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// command:threadName
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public static final String COMMAND_EXIT_SINGLE_FRAME = "exitSingleFrame";
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// command:threadName:monitorIndex
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public static final String COMMAND_RELINQUISH_MONITOR = "relinquishMonitor";
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// command:threadName
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public static final String COMMAND_ACQUIRE_RELINQUISHED_MONITOR = "acquireRelinquishedMonitor";
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// from this array information about acquired monitors is available for debugger
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// (this class is used in stress tests where several tests are executed consecutively, but in this case using of
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// static array shouldn't cause problems because of before using of array 'monitorsInfo' debugger
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// uses COMMAND_UPDATE_MONITOR_INFO which updates this array with latest data, so excution of one test shouldn't
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// affect other tests)
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public static LockingThread.DebugMonitorInfo monitorsInfo[];
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private boolean returnJNIMonitors;
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public final static String mainThreadName = "OwnedMonitorDebuggeeMainThread";
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protected String[] doInit(String[] args) {
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Thread.currentThread().setName(mainThreadName);
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args = super.doInit(args);
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ArrayList<String> standardArgs = new ArrayList<String>();
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for (int i = 0; i < args.length; i++) {
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if (args[i].equalsIgnoreCase("-returnJNIMonitors")) {
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returnJNIMonitors = true;
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} else
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standardArgs.add(args[i]);
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}
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return standardArgs.toArray(new String[] {});
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}
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public boolean parseCommand(String command) {
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if (super.parseCommand(command))
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return true;
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StreamTokenizer tokenizer = new StreamTokenizer(new StringReader(command));
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tokenizer.whitespaceChars(':', ':');
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tokenizer.wordChars('_', '_');
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try {
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if (command.startsWith(COMMAND_ACQUIRE_RELINQUISHED_MONITOR)) {
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tokenizer.nextToken();
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if (tokenizer.nextToken() != StreamTokenizer.TT_WORD)
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throw new TestBug("Invalid command format: " + command);
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String threadName = tokenizer.sval;
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acquireRelinquishMonitor(threadName);
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return true;
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} else if (command.startsWith(COMMAND_RELINQUISH_MONITOR)) {
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tokenizer.nextToken();
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if (tokenizer.nextToken() != StreamTokenizer.TT_WORD)
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throw new TestBug("Invalid command format: " + command);
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String threadName = tokenizer.sval;
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if (tokenizer.nextToken() != StreamTokenizer.TT_NUMBER)
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throw new TestBug("Invalid command format: " + command);
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int monitorIndex = (int) tokenizer.nval;
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relinquishMonitor(threadName, monitorIndex);
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return true;
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} else if (command.startsWith(COMMAND_CREATE_LOCKING_THREAD)) {
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tokenizer.nextToken();
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if (tokenizer.nextToken() != StreamTokenizer.TT_WORD)
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throw new TestBug("Invalid command format: " + command);
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String threadName = tokenizer.sval;
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List<String> stackFramesDescription = new ArrayList<String>();
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while (tokenizer.nextToken() == StreamTokenizer.TT_WORD) {
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stackFramesDescription.add(tokenizer.sval);
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}
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createLockingThread(threadName, stackFramesDescription);
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return true;
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} else if (command.startsWith(COMMAND_STOP_LOCKING_THREAD)) {
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tokenizer.nextToken();
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if (tokenizer.nextToken() != StreamTokenizer.TT_WORD)
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throw new TestBug("Invalid command format: " + command);
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String threadName = tokenizer.sval;
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stopLockingThread(threadName);
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return true;
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} else if (command.startsWith(COMMAND_UPDATE_MONITOR_INFO)) {
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tokenizer.nextToken();
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if (tokenizer.nextToken() != StreamTokenizer.TT_WORD)
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throw new TestBug("Invalid command format: " + command);
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String threadName = tokenizer.sval;
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updateMonitorInfo(threadName);
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return true;
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} else if (command.startsWith(COMMAND_EXIT_SINGLE_FRAME)) {
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tokenizer.nextToken();
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if (tokenizer.nextToken() != StreamTokenizer.TT_WORD)
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throw new TestBug("Invalid command format: " + command);
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String threadName = tokenizer.sval;
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exitSingleFrame(threadName);
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return true;
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}
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} catch (IOException e) {
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throw new TestBug("Invalid command format: " + command);
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}
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return false;
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}
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public void acquireRelinquishMonitor(String threadName) {
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LockingThread thread = getThread(threadName);
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thread.acquireRelinquishedMonitor();
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thread.waitState();
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updateMonitorInfo(threadName);
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}
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public void relinquishMonitor(String threadName, int monitorIndex) {
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LockingThread thread = getThread(threadName);
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thread.relinquishMonitor(monitorIndex);
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thread.waitState();
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updateMonitorInfo(threadName);
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}
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private void updateMonitorInfo(String threadName) {
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LockingThread thread = getThread(threadName);
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monitorsInfo = thread.getMonitorsInfo(returnJNIMonitors);
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}
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private Map<String, LockingThread> threads = new TreeMap<String, LockingThread>();
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private LockingThread getThread(String threadName) {
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LockingThread thread = threads.get(threadName);
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if (thread == null)
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throw new TestBug("Locking thread with name: " + threadName + " was not created");
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return thread;
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}
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private void stopLockingThread(String threadName) {
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LockingThread thread = getThread(threadName);
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thread.stopLockingThread();
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thread.waitState();
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updateMonitorInfo(threadName);
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}
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private void exitSingleFrame(String threadName) {
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LockingThread thread = getThread(threadName);
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thread.exitSingleFrame();
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thread.waitState();
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updateMonitorInfo(threadName);
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}
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private void createLockingThread(String threadName, List<String> stackFramesDescription) {
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if (threads.get(threadName) != null)
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throw new TestBug("Locking thread with name: " + threadName + " already exists");
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LockingThread thread = new LockingThread(log, stackFramesDescription);
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thread.setName(threadName);
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thread.start();
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thread.waitState();
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threads.put(threadName, thread);
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updateMonitorInfo(threadName);
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}
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public static void main(String args[]) {
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OwnedMonitorsDebuggee debuggee = new OwnedMonitorsDebuggee();
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debuggee.doTest(args);
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}
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}
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