/* * Copyright (c) 1998, 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. */package com.sun.tools.jdi;import com.sun.jdi.*;import java.util.*;public class ThreadGroupReferenceImpl extends ObjectReferenceImpl implements ThreadGroupReference, VMListener{ // Cached components that cannot change String name; ThreadGroupReference parent; boolean triedParent; // This is cached only while the VM is suspended private static class Cache extends ObjectReferenceImpl.Cache { JDWP.ThreadGroupReference.Children kids = null; } protected ObjectReferenceImpl.Cache newCache() { return new Cache(); } ThreadGroupReferenceImpl(VirtualMachine aVm,long aRef) { super(aVm,aRef); vm.state().addListener(this); } protected String description() { return "ThreadGroupReference " + uniqueID(); } public String name() { if (name == null) { // Does not need synchronization, since worst-case // static info is fetched twice (Thread group name // cannot change) try { name = JDWP.ThreadGroupReference.Name. process(vm, this).groupName; } catch (JDWPException exc) { throw exc.toJDIException(); } } return name; } public ThreadGroupReference parent() { if (!triedParent) { // Does not need synchronization, since worst-case // static info is fetched twice (Thread group parent cannot // change) try { parent = JDWP.ThreadGroupReference.Parent. process(vm, this).parentGroup; triedParent = true; } catch (JDWPException exc) { throw exc.toJDIException(); } } return parent; } public void suspend() { for (ThreadReference thread : threads()) { thread.suspend(); } for (ThreadGroupReference threadGroup : threadGroups()) { threadGroup.suspend(); } } public void resume() { for (ThreadReference thread : threads()) { thread.resume(); } for (ThreadGroupReference threadGroup : threadGroups()) { threadGroup.resume(); } } private JDWP.ThreadGroupReference.Children kids() { JDWP.ThreadGroupReference.Children kids = null; try { Cache local = (Cache)getCache(); if (local != null) { kids = local.kids; } if (kids == null) { kids = JDWP.ThreadGroupReference.Children .process(vm, this); if (local != null) { local.kids = kids; if ((vm.traceFlags & vm.TRACE_OBJREFS) != 0) { vm.printTrace(description() + " temporarily caching children "); } } } } catch (JDWPException exc) { throw exc.toJDIException(); } return kids; } public List<ThreadReference> threads() { return Arrays.asList((ThreadReference[])kids().childThreads); } public List<ThreadGroupReference> threadGroups() { return Arrays.asList((ThreadGroupReference[])kids().childGroups); } public String toString() { return "instance of " + referenceType().name() + "(name='" + name() + "', " + "id=" + uniqueID() + ")"; } byte typeValueKey() { return JDWP.Tag.THREAD_GROUP; }}
/*
* Copyright (c) 1998, 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.
*/
package com.sun.tools.jdi;
import com.sun.jdi.*;
import java.util.*;
public class ThreadGroupReferenceImpl extends ObjectReferenceImpl
implements ThreadGroupReference, VMListener
{
// Cached components that cannot change
String name;
ThreadGroupReference parent;
boolean triedParent;
// This is cached only while the VM is suspended
private static class Cache extends ObjectReferenceImpl.Cache {
JDWP.ThreadGroupReference.Children kids = null;
}
protected ObjectReferenceImpl.Cache newCache() {
return new Cache();
}
ThreadGroupReferenceImpl(VirtualMachine aVm,long aRef) {
super(aVm,aRef);
vm.state().addListener(this);
}
protected String description() {
return "ThreadGroupReference " + uniqueID();
}
public String name() {
if (name == null) {
// Does not need synchronization, since worst-case
// static info is fetched twice (Thread group name
// cannot change)
try {
name = JDWP.ThreadGroupReference.Name.
process(vm, this).groupName;
} catch (JDWPException exc) {
throw exc.toJDIException();
}
}
return name;
}
public ThreadGroupReference parent() {
if (!triedParent) {
// Does not need synchronization, since worst-case
// static info is fetched twice (Thread group parent cannot
// change)
try {
parent = JDWP.ThreadGroupReference.Parent.
process(vm, this).parentGroup;
triedParent = true;
} catch (JDWPException exc) {
throw exc.toJDIException();
}
}
return parent;
}
public void suspend() {
for (ThreadReference thread : threads()) {
thread.suspend();
}
for (ThreadGroupReference threadGroup : threadGroups()) {
threadGroup.suspend();
}
}
public void resume() {
for (ThreadReference thread : threads()) {
thread.resume();
}
for (ThreadGroupReference threadGroup : threadGroups()) {
threadGroup.resume();
}
}
private JDWP.ThreadGroupReference.Children kids() {
JDWP.ThreadGroupReference.Children kids = null;
try {
Cache local = (Cache)getCache();
if (local != null) {
kids = local.kids;
}
if (kids == null) {
kids = JDWP.ThreadGroupReference.Children
.process(vm, this);
if (local != null) {
local.kids = kids;
if ((vm.traceFlags & vm.TRACE_OBJREFS) != 0) {
vm.printTrace(description() +
" temporarily caching children ");
}
}
}
} catch (JDWPException exc) {
throw exc.toJDIException();
}
return kids;
}
public List<ThreadReference> threads() {
return Arrays.asList((ThreadReference[])kids().childThreads);
}
public List<ThreadGroupReference> threadGroups() {
return Arrays.asList((ThreadGroupReference[])kids().childGroups);
}
public String toString() {
return "instance of " + referenceType().name() +
"(name='" + name() + "', " + "id=" + uniqueID() + ")";
}
byte typeValueKey() {
return JDWP.Tag.THREAD_GROUP;
}
}