| /* |
| * Copyright (c) 1999, 2008, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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. |
| */ |
| |
| /* |
| * This source code is provided to illustrate the usage of a given feature |
| * or technique and has been deliberately simplified. Additional steps |
| * required for a production-quality application, such as security checks, |
| * input validation and proper error handling, might not be present in |
| * this sample code. |
| */ |
| |
| |
| package com.sun.tools.example.debug.bdi; |
| |
| import com.sun.jdi.*; |
| import com.sun.jdi.event.*; |
| |
| import com.sun.tools.example.debug.event.*; |
| |
| import javax.swing.SwingUtilities; |
| |
| /** |
| */ |
| class JDIEventSource extends Thread { |
| |
| private /*final*/ EventQueue queue; |
| private /*final*/ Session session; |
| private /*final*/ ExecutionManager runtime; |
| private final JDIListener firstListener = new FirstListener(); |
| |
| private boolean wantInterrupt; //### Hack |
| |
| /** |
| * Create event source. |
| */ |
| JDIEventSource(Session session) { |
| super("JDI Event Set Dispatcher"); |
| this.session = session; |
| this.runtime = session.runtime; |
| this.queue = session.vm.eventQueue(); |
| } |
| |
| @Override |
| public void run() { |
| try { |
| runLoop(); |
| } catch (Exception exc) { |
| //### Do something different for InterruptedException??? |
| // just exit |
| } |
| session.running = false; |
| } |
| |
| private void runLoop() throws InterruptedException { |
| AbstractEventSet es; |
| do { |
| EventSet jdiEventSet = queue.remove(); |
| es = AbstractEventSet.toSpecificEventSet(jdiEventSet); |
| session.interrupted = es.suspendedAll(); |
| dispatchEventSet(es); |
| } while(!(es instanceof VMDisconnectEventSet)); |
| } |
| |
| //### Gross foul hackery! |
| private void dispatchEventSet(final AbstractEventSet es) { |
| SwingUtilities.invokeLater(new Runnable() { |
| @Override |
| public void run() { |
| boolean interrupted = es.suspendedAll(); |
| es.notify(firstListener); |
| boolean wantInterrupt = JDIEventSource.this.wantInterrupt; |
| for (JDIListener jl : session.runtime.jdiListeners) { |
| es.notify(jl); |
| } |
| if (interrupted && !wantInterrupt) { |
| session.interrupted = false; |
| //### Catch here is a hack |
| try { |
| session.vm.resume(); |
| } catch (VMDisconnectedException ee) {} |
| } |
| if (es instanceof ThreadDeathEventSet) { |
| ThreadReference t = ((ThreadDeathEventSet)es).getThread(); |
| session.runtime.removeThreadInfo(t); |
| } |
| } |
| }); |
| } |
| |
| private void finalizeEventSet(AbstractEventSet es) { |
| if (session.interrupted && !wantInterrupt) { |
| session.interrupted = false; |
| //### Catch here is a hack |
| try { |
| session.vm.resume(); |
| } catch (VMDisconnectedException ee) {} |
| } |
| if (es instanceof ThreadDeathEventSet) { |
| ThreadReference t = ((ThreadDeathEventSet)es).getThread(); |
| session.runtime.removeThreadInfo(t); |
| } |
| } |
| |
| //### This is a Hack, deal with it |
| private class FirstListener implements JDIListener { |
| |
| @Override |
| public void accessWatchpoint(AccessWatchpointEventSet e) { |
| session.runtime.validateThreadInfo(); |
| wantInterrupt = true; |
| } |
| |
| @Override |
| public void classPrepare(ClassPrepareEventSet e) { |
| wantInterrupt = false; |
| runtime.resolve(e.getReferenceType()); |
| } |
| |
| @Override |
| public void classUnload(ClassUnloadEventSet e) { |
| wantInterrupt = false; |
| } |
| |
| @Override |
| public void exception(ExceptionEventSet e) { |
| wantInterrupt = true; |
| } |
| |
| @Override |
| public void locationTrigger(LocationTriggerEventSet e) { |
| session.runtime.validateThreadInfo(); |
| wantInterrupt = true; |
| } |
| |
| @Override |
| public void modificationWatchpoint(ModificationWatchpointEventSet e) { |
| session.runtime.validateThreadInfo(); |
| wantInterrupt = true; |
| } |
| |
| @Override |
| public void threadDeath(ThreadDeathEventSet e) { |
| wantInterrupt = false; |
| } |
| |
| @Override |
| public void threadStart(ThreadStartEventSet e) { |
| wantInterrupt = false; |
| } |
| |
| @Override |
| public void vmDeath(VMDeathEventSet e) { |
| //### Should have some way to notify user |
| //### that VM died before the session ended. |
| wantInterrupt = false; |
| } |
| |
| @Override |
| public void vmDisconnect(VMDisconnectEventSet e) { |
| //### Notify user? |
| wantInterrupt = false; |
| session.runtime.endSession(); |
| } |
| |
| @Override |
| public void vmStart(VMStartEventSet e) { |
| //### Do we need to do anything with it? |
| wantInterrupt = false; |
| } |
| } |
| } |