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1 /*
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2 * Copyright 2005 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.jdi;
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26
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27 import com.sun.jdi.*;
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28
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29 // FIXME: This class should implement com.sun.jdi.MonitorInfo.
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30 // So fix this when hotspot is started to build with
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31 // jdk1.6.
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32 public class MonitorInfoImpl extends MirrorImpl {
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33
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34 /* Once false, monitorInfo should not be used.
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35 * access synchronized on (vm.state())
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36 */
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37 private boolean isValid = true;
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38
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39 ObjectReference monitor;
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40 ThreadReference thread;
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41 int stack_depth;
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42
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43 MonitorInfoImpl(VirtualMachine vm, ObjectReference mon,
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44 ThreadReference thread, int dpth) {
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45 super(vm);
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46 this.monitor = mon;
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47 this.thread = thread;
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48 this.stack_depth = dpth;
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49 }
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50
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51 private void validateMonitorInfo() {
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52 if (!isValid) {
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53 throw new InvalidStackFrameException("Thread has been resumed");
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54 }
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55 }
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56
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57 public ObjectReference monitor() {
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58 validateMonitorInfo();
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59 return monitor;
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60 }
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61
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62 public int stackDepth() {
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63 validateMonitorInfo();
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64 return stack_depth;
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65 }
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66
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67 public ThreadReference thread() {
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68 validateMonitorInfo();
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69 return thread;
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70 }
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71 }
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