author | erikj |
Tue, 12 Sep 2017 19:03:39 +0200 | |
changeset 47216 | 71c04702a3d5 |
parent 45714 | jdk/src/jdk.jdi/share/classes/com/sun/tools/jdi/MonitorInfoImpl.java@1820d351198d |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005, 2017, 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. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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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 com.sun.tools.jdi; |
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import com.sun.jdi.InternalException; |
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import com.sun.jdi.InvalidStackFrameException; |
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import com.sun.jdi.MonitorInfo; |
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import com.sun.jdi.ObjectReference; |
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import com.sun.jdi.ThreadReference; |
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import com.sun.jdi.VirtualMachine; |
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public class MonitorInfoImpl extends MirrorImpl |
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implements MonitorInfo, ThreadListener { |
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/* Once false, monitorInfo should not be used. |
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* access synchronized on (vm.state()) |
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*/ |
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private boolean isValid = true; |
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ObjectReference monitor; |
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ThreadReference thread; |
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int stack_depth; |
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MonitorInfoImpl(VirtualMachine vm, ObjectReference mon, |
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836
d81b1f62fb82
6700889: Thread resume invalidates all stack frames, even from other threads
jjh
parents:
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diff
changeset
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ThreadReferenceImpl thread, int dpth) { |
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super(vm); |
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this.monitor = mon; |
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this.thread = thread; |
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this.stack_depth = dpth; |
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d81b1f62fb82
6700889: Thread resume invalidates all stack frames, even from other threads
jjh
parents:
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diff
changeset
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thread.addListener(this); |
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} |
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/* |
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* ThreadListener implementation |
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* Must be synchronized since we must protect against |
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* sending defunct (isValid == false) stack ids to the back-end. |
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*/ |
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public boolean threadResumable(ThreadAction action) { |
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synchronized (vm.state()) { |
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if (isValid) { |
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isValid = false; |
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return false; /* remove this stack frame as a listener */ |
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} else { |
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throw new InternalException( |
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"Invalid stack frame thread listener"); |
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} |
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} |
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} |
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private void validateMonitorInfo() { |
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if (!isValid) { |
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throw new InvalidStackFrameException("Thread has been resumed"); |
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} |
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} |
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public ObjectReference monitor() { |
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validateMonitorInfo(); |
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return monitor; |
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} |
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public int stackDepth() { |
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validateMonitorInfo(); |
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return stack_depth; |
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} |
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public ThreadReference thread() { |
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validateMonitorInfo(); |
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return thread; |
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} |
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} |