J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1999 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package com.sun.tools.example.debug.bdi; |
| 27 | |
| 28 | import com.sun.jdi.*; |
| 29 | import com.sun.jdi.event.*; |
| 30 | |
| 31 | import java.util.*; |
| 32 | |
| 33 | import com.sun.tools.example.debug.event.*; |
| 34 | |
| 35 | import javax.swing.SwingUtilities; |
| 36 | |
| 37 | /** |
| 38 | */ |
| 39 | class JDIEventSource extends Thread { |
| 40 | |
| 41 | private /*final*/ EventQueue queue; |
| 42 | private /*final*/ Session session; |
| 43 | private /*final*/ ExecutionManager runtime; |
| 44 | private final JDIListener firstListener = new FirstListener(); |
| 45 | |
| 46 | private boolean wantInterrupt; //### Hack |
| 47 | |
| 48 | /** |
| 49 | * Create event source. |
| 50 | */ |
| 51 | JDIEventSource(Session session) { |
| 52 | super("JDI Event Set Dispatcher"); |
| 53 | this.session = session; |
| 54 | this.runtime = session.runtime; |
| 55 | this.queue = session.vm.eventQueue(); |
| 56 | } |
| 57 | |
| 58 | public void run() { |
| 59 | try { |
| 60 | runLoop(); |
| 61 | } catch (Exception exc) { |
| 62 | //### Do something different for InterruptedException??? |
| 63 | // just exit |
| 64 | } |
| 65 | session.running = false; |
| 66 | } |
| 67 | |
| 68 | private void runLoop() throws InterruptedException { |
| 69 | AbstractEventSet es; |
| 70 | do { |
| 71 | EventSet jdiEventSet = queue.remove(); |
| 72 | es = AbstractEventSet.toSpecificEventSet(jdiEventSet); |
| 73 | session.interrupted = es.suspendedAll(); |
| 74 | dispatchEventSet(es); |
| 75 | } while(!(es instanceof VMDisconnectEventSet)); |
| 76 | } |
| 77 | |
| 78 | //### Gross foul hackery! |
| 79 | private void dispatchEventSet(final AbstractEventSet es) { |
| 80 | SwingUtilities.invokeLater(new Runnable() { |
| 81 | public void run() { |
| 82 | boolean interrupted = es.suspendedAll(); |
| 83 | es.notify(firstListener); |
| 84 | boolean wantInterrupt = JDIEventSource.this.wantInterrupt; |
| 85 | for (Iterator it = session.runtime.jdiListeners.iterator(); |
| 86 | it.hasNext(); ) { |
| 87 | JDIListener jl = (JDIListener)it.next(); |
| 88 | es.notify(jl); |
| 89 | } |
| 90 | if (interrupted && !wantInterrupt) { |
| 91 | session.interrupted = false; |
| 92 | //### Catch here is a hack |
| 93 | try { |
| 94 | session.vm.resume(); |
| 95 | } catch (VMDisconnectedException ee) {} |
| 96 | } |
| 97 | if (es instanceof ThreadDeathEventSet) { |
| 98 | ThreadReference t = ((ThreadDeathEventSet)es).getThread(); |
| 99 | session.runtime.removeThreadInfo(t); |
| 100 | } |
| 101 | } |
| 102 | }); |
| 103 | } |
| 104 | |
| 105 | private void finalizeEventSet(AbstractEventSet es) { |
| 106 | if (session.interrupted && !wantInterrupt) { |
| 107 | session.interrupted = false; |
| 108 | //### Catch here is a hack |
| 109 | try { |
| 110 | session.vm.resume(); |
| 111 | } catch (VMDisconnectedException ee) {} |
| 112 | } |
| 113 | if (es instanceof ThreadDeathEventSet) { |
| 114 | ThreadReference t = ((ThreadDeathEventSet)es).getThread(); |
| 115 | session.runtime.removeThreadInfo(t); |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | //### This is a Hack, deal with it |
| 120 | private class FirstListener implements JDIListener { |
| 121 | |
| 122 | public void accessWatchpoint(AccessWatchpointEventSet e) { |
| 123 | session.runtime.validateThreadInfo(); |
| 124 | wantInterrupt = true; |
| 125 | } |
| 126 | |
| 127 | public void classPrepare(ClassPrepareEventSet e) { |
| 128 | wantInterrupt = false; |
| 129 | runtime.resolve(e.getReferenceType()); |
| 130 | } |
| 131 | |
| 132 | public void classUnload(ClassUnloadEventSet e) { |
| 133 | wantInterrupt = false; |
| 134 | } |
| 135 | |
| 136 | public void exception(ExceptionEventSet e) { |
| 137 | wantInterrupt = true; |
| 138 | } |
| 139 | |
| 140 | public void locationTrigger(LocationTriggerEventSet e) { |
| 141 | session.runtime.validateThreadInfo(); |
| 142 | wantInterrupt = true; |
| 143 | } |
| 144 | |
| 145 | public void modificationWatchpoint(ModificationWatchpointEventSet e) { |
| 146 | session.runtime.validateThreadInfo(); |
| 147 | wantInterrupt = true; |
| 148 | } |
| 149 | |
| 150 | public void threadDeath(ThreadDeathEventSet e) { |
| 151 | wantInterrupt = false; |
| 152 | } |
| 153 | |
| 154 | public void threadStart(ThreadStartEventSet e) { |
| 155 | wantInterrupt = false; |
| 156 | } |
| 157 | |
| 158 | public void vmDeath(VMDeathEventSet e) { |
| 159 | //### Should have some way to notify user |
| 160 | //### that VM died before the session ended. |
| 161 | wantInterrupt = false; |
| 162 | } |
| 163 | |
| 164 | public void vmDisconnect(VMDisconnectEventSet e) { |
| 165 | //### Notify user? |
| 166 | wantInterrupt = false; |
| 167 | session.runtime.endSession(); |
| 168 | } |
| 169 | |
| 170 | public void vmStart(VMStartEventSet e) { |
| 171 | //### Do we need to do anything with it? |
| 172 | wantInterrupt = false; |
| 173 | } |
| 174 | } |
| 175 | } |