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1 /*
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2 * Copyright 2002 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.debugger.remote;
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26
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27 import sun.jvm.hotspot.debugger.*;
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28
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29 public abstract class RemoteThread implements ThreadProxy {
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30 protected RemoteDebuggerClient debugger;
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31 protected Address addr;
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32 protected long id;
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33
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34 public RemoteThread(RemoteDebuggerClient debugger, Address addr) {
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35 this.debugger = debugger;
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36 this.addr = addr;
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37 this.id = -1L; // invalid, but don't depend on it. check null for addr
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38 }
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39
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40 public RemoteThread(RemoteDebuggerClient debugger, long id) {
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41 this.debugger = debugger;
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42 this.addr = null;
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43 this.id = id;
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44 }
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45
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46 public boolean canSetContext() throws DebuggerException {
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47 return false;
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48 }
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49
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50 public void setContext(ThreadContext context)
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51 throws IllegalThreadStateException, DebuggerException {
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52 throw new DebuggerException("Unimplemented");
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53 }
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54
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55 public boolean equals(Object o) {
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56 if (o == null) {
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57 return false;
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58 }
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59
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60 if (! (o instanceof RemoteThread)) {
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61 return false;
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62 }
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63 RemoteThread other = (RemoteThread)o;
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64 boolean isOtherAddress = (other.addr != null);
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65 boolean isAddress = (addr != null);
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66
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67 if (isAddress) {
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68 return (isOtherAddress)? debugger.areThreadsEqual(addr, other.addr) :
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69 debugger.areThreadsEqual(addr, other.id);
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70 } else {
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71 return (isOtherAddress)? debugger.areThreadsEqual(id, other.addr) :
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72 debugger.areThreadsEqual(id, other.id);
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73 }
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74 }
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75
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76 public int hashCode() {
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77 return (addr != null)? debugger.getThreadHashCode(addr) :
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78 debugger.getThreadHashCode(id);
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79 }
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80
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81 public String toString() {
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82 return "t@ " + hashCode();
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83 }
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84 }
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