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1
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34
35 package com.sun.tools.example.debug.bdi;
36
37 import com.sun.jdi.*;
38 import java.util.List  ;
39 import java.util.ArrayList ;
40 import java.util.Iterator ;
41
42
44 public class ThreadInfo {
45
46 private ThreadReference thread;
47 private int status;
48
49 private int frameCount;
50
51 Object userObject;
53 private boolean interrupted = false;
54
55 private void assureInterrupted() throws VMNotInterruptedException {
56 if (!interrupted) {
57 throw new VMNotInterruptedException();
58 }
59 }
60
61 ThreadInfo (ThreadReference thread) {
62 this.thread = thread;
63 this.frameCount = -1;
64 }
65
66 public ThreadReference thread() {
67 return thread;
68 }
69
70 public int getStatus() throws VMNotInterruptedException {
71 assureInterrupted();
72 update();
73 return status;
74 }
75
76 public int getFrameCount() throws VMNotInterruptedException {
77 assureInterrupted();
78 update();
79 return frameCount;
80 }
81
82 public StackFrame getFrame(int index) throws VMNotInterruptedException {
83 assureInterrupted();
84 update();
85 try {
86 return thread.frame(index);
87 } catch (IncompatibleThreadStateException e) {
88 interrupted = false;
90 throw new VMNotInterruptedException();
91 }
92 }
93
94 public Object getUserObject() {
95 return userObject;
96 }
97
98 public void setUserObject(Object obj) {
99 userObject = obj;
100 }
101
102
104 void update() throws VMNotInterruptedException {
105 if (frameCount == -1) {
106 try {
107 status = thread.status();
108 frameCount = thread.frameCount();
109 } catch (IncompatibleThreadStateException e) {
110 interrupted = false;
112 throw new VMNotInterruptedException();
113 }
114 }
115 }
116
117
119 void validate() {
120 interrupted = true;
121 }
122
123 void invalidate() {
124 interrupted = false;
125 frameCount = -1;
126 status = ThreadReference.THREAD_STATUS_UNKNOWN;
127 }
128
129 }
130 |
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