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