1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
|
/*******************************************************************************
* Copyright (c) 2012, 2013 Ericsson and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Marc Khouzam (Ericsson) - initial API and implementation
* Marc Dumais (Ericsson) - Bug 400231
* Marc Dumais (Ericsson) - Bug 399419
* Marc Dumais (Ericsson) - Bug 405390
* Marc Dumais (Ericsson) - Bug 396269
* Marc Dumais (Ericsson) - Bug 409512
*******************************************************************************/
package org.eclipse.cdt.dsf.gdb.multicorevisualizer.internal.ui.view;
import org.eclipse.cdt.dsf.concurrent.ImmediateDataRequestMonitor;
import org.eclipse.cdt.dsf.datamodel.DMContexts;
import org.eclipse.cdt.dsf.datamodel.DataModelInitializedEvent;
import org.eclipse.cdt.dsf.datamodel.IDMContext;
import org.eclipse.cdt.dsf.debug.service.IProcesses;
import org.eclipse.cdt.dsf.debug.service.IProcesses.IThreadDMContext;
import org.eclipse.cdt.dsf.debug.service.IProcesses.IThreadDMData;
import org.eclipse.cdt.dsf.debug.service.IRunControl.IContainerDMContext;
import org.eclipse.cdt.dsf.debug.service.IRunControl.IExitedDMEvent;
import org.eclipse.cdt.dsf.debug.service.IRunControl.IResumedDMEvent;
import org.eclipse.cdt.dsf.debug.service.IRunControl.IStartedDMEvent;
import org.eclipse.cdt.dsf.debug.service.IRunControl.ISuspendedDMEvent;
import org.eclipse.cdt.dsf.debug.service.IRunControl.StateChangeReason;
import org.eclipse.cdt.dsf.gdb.multicorevisualizer.internal.ui.MulticoreVisualizerUIPlugin;
import org.eclipse.cdt.dsf.gdb.multicorevisualizer.internal.ui.model.VisualizerCore;
import org.eclipse.cdt.dsf.gdb.multicorevisualizer.internal.ui.model.VisualizerExecutionState;
import org.eclipse.cdt.dsf.gdb.multicorevisualizer.internal.ui.model.VisualizerThread;
import org.eclipse.cdt.dsf.gdb.multicorevisualizer.internal.utils.DSFDebugModel;
import org.eclipse.cdt.dsf.gdb.service.IGDBProcesses.IGdbThreadDMData;
import org.eclipse.cdt.dsf.mi.service.IMIExecutionDMContext;
import org.eclipse.cdt.dsf.mi.service.IMIProcessDMContext;
import org.eclipse.cdt.dsf.mi.service.command.events.IMIDMEvent;
import org.eclipse.cdt.dsf.mi.service.command.events.MISignalEvent;
import org.eclipse.cdt.dsf.service.DsfServiceEventHandler;
import org.eclipse.cdt.dsf.service.DsfServicesTracker;
/**
* DSF event listener class for the Multicore Visualizer.
* This class will handle different relevant DSF events
* and update the Multicore Visualizer accordingly.
*/
public class MulticoreVisualizerEventListener {
// --- members ---
/** Visualizer we're managing events for. */
protected MulticoreVisualizer fVisualizer;
// --- constructors/destructors ---
/** Constructor */
public MulticoreVisualizerEventListener(MulticoreVisualizer visualizer) {
fVisualizer = visualizer;
}
// --- event handlers ---
/**
* Invoked when a thread or process is suspended.
* Updates both state of the thread and the core it's running on
*/
@DsfServiceEventHandler
public void handleEvent(final ISuspendedDMEvent event) {
IDMContext context = event.getDMContext();
if (context instanceof IContainerDMContext) {
// We don't deal with processes
} else if (context instanceof IMIExecutionDMContext) {
// Thread suspended
final IMIExecutionDMContext execDmc = (IMIExecutionDMContext)context;
IThreadDMContext threadContext =
DMContexts.getAncestorOfType(execDmc, IThreadDMContext.class);
DsfServicesTracker tracker =
new DsfServicesTracker(MulticoreVisualizerUIPlugin.getBundleContext(),
execDmc.getSessionId());
IProcesses procService = tracker.getService(IProcesses.class);
tracker.dispose();
procService.getExecutionData(threadContext,
new ImmediateDataRequestMonitor<IThreadDMData>() {
@Override
protected void handleSuccess() {
IThreadDMData data = getData();
// Check whether we know about cores
if (data instanceof IGdbThreadDMData) {
String[] cores = ((IGdbThreadDMData)data).getCores();
if (cores != null) {
assert cores.length == 1; // A thread belongs to a single core
int coreId = Integer.parseInt(cores[0]);
VisualizerCore vCore = fVisualizer.getModel().getCore(coreId);
int tid = execDmc.getThreadId();
VisualizerThread thread = fVisualizer.getModel().getThread(tid);
if (thread != null) {
assert thread.getState() == VisualizerExecutionState.RUNNING;
VisualizerExecutionState newState = VisualizerExecutionState.SUSPENDED;
if (event.getReason() == StateChangeReason.SIGNAL) {
if (event instanceof IMIDMEvent) {
Object miEvent = ((IMIDMEvent)event).getMIEvent();
if (miEvent instanceof MISignalEvent) {
String signalName = ((MISignalEvent)miEvent).getName();
if (DSFDebugModel.isCrashSignal(signalName)) {
newState = VisualizerExecutionState.CRASHED;
}
}
}
}
thread.setState(newState);
thread.setCore(vCore);
fVisualizer.refresh();
}
}
}
}
}
);
}
}
/** Invoked when a thread or process is resumed. */
@DsfServiceEventHandler
public void handleEvent(IResumedDMEvent event) {
IDMContext context = event.getDMContext();
if (context instanceof IContainerDMContext) {
// We don't deal with processes
} else if (context instanceof IMIExecutionDMContext) {
// Thread resumed
int tid = ((IMIExecutionDMContext)context).getThreadId();
VisualizerThread thread = fVisualizer.getModel().getThread(tid);
if (thread != null) {
assert thread.getState() == VisualizerExecutionState.SUSPENDED ||
thread.getState() == VisualizerExecutionState.CRASHED;
thread.setState(VisualizerExecutionState.RUNNING);
fVisualizer.getMulticoreVisualizerCanvas().requestUpdate();
}
}
}
/** Invoked when a thread or process starts. */
@DsfServiceEventHandler
public void handleEvent(IStartedDMEvent event) {
IDMContext context = event.getDMContext();
if (context instanceof IContainerDMContext) {
// We don't deal with processes
} else if (context instanceof IMIExecutionDMContext) {
// New thread added
final IMIExecutionDMContext execDmc = (IMIExecutionDMContext)context;
final IMIProcessDMContext processContext =
DMContexts.getAncestorOfType(execDmc, IMIProcessDMContext.class);
IThreadDMContext threadContext =
DMContexts.getAncestorOfType(execDmc, IThreadDMContext.class);
DsfServicesTracker tracker =
new DsfServicesTracker(MulticoreVisualizerUIPlugin.getBundleContext(),
execDmc.getSessionId());
IProcesses procService = tracker.getService(IProcesses.class);
tracker.dispose();
procService.getExecutionData(threadContext,
new ImmediateDataRequestMonitor<IThreadDMData>() {
@Override
protected void handleSuccess() {
IThreadDMData data = getData();
// Check whether we know about cores
if (data instanceof IGdbThreadDMData) {
String[] cores = ((IGdbThreadDMData)data).getCores();
if (cores != null) {
assert cores.length == 1; // A thread belongs to a single core
int coreId = Integer.parseInt(cores[0]);
VisualizerCore vCore = fVisualizer.getModel().getCore(coreId);
// There is a race condition that sometimes happens here. We can reach
// here because we were notified that a thread is started, but the model
// is not yet completely constructed. If the model doesn't yet contain the
// core the thread runs-on, the getCore() call above will return null. This
// will later cause a problem when we try to draw this thread, if we allow
// this to pass. See Bug 396269/
if (vCore == null)
return;
int pid = Integer.parseInt(processContext.getProcId());
int tid = execDmc.getThreadId();
int osTid = 0;
try {
osTid = Integer.parseInt(data.getId());
} catch (NumberFormatException e) {
// I've seen a case at startup where GDB is not ready to
// return the osTID so we get null.
// That is ok, we'll be refreshing right away at startup
}
// add thread if not already there - there is a potential race condition where a
// thread can be added twice to the model: once at model creation and once more
// through the listener. Checking at both places to prevent this.
if (fVisualizer.getModel().getThread(tid) == null ) {
fVisualizer.getModel().addThread(new VisualizerThread(vCore, pid, osTid, tid, VisualizerExecutionState.RUNNING));
fVisualizer.getMulticoreVisualizerCanvas().requestUpdate();
}
}
}
}
}
);
}
}
/** Invoked when a thread or process exits. */
@DsfServiceEventHandler
public void handleEvent(IExitedDMEvent event) {
IDMContext context = event.getDMContext();
final MulticoreVisualizerCanvas canvas = fVisualizer.getMulticoreVisualizerCanvas();
if (context instanceof IContainerDMContext) {
// process exited
// Note: this is required because we noticed that in GDB 7.6 and older,
// the "thread exited" signal is not sent for the local detach case.
// see bug 409512
DsfServicesTracker tracker =
new DsfServicesTracker(MulticoreVisualizerUIPlugin.getBundleContext(),
context.getSessionId());
IProcesses procService = tracker.getService(IProcesses.class);
tracker.dispose();
// get all threads associated to this process and
// mark them as exited in the model.
procService.getProcessesBeingDebugged(context,
new ImmediateDataRequestMonitor<IDMContext[]>() {
@Override
protected void handleSuccess() {
assert getData() != null;
IDMContext[] contexts = getData();
for (IDMContext c : contexts) {
if (c instanceof IMIExecutionDMContext) {
int tid = ((IMIExecutionDMContext)c).getThreadId();
fVisualizer.getModel().markThreadExited(tid);
}
}
if (canvas != null) {
canvas.requestUpdate();
}
}
});
} else if (context instanceof IMIExecutionDMContext) {
// Thread exited
int tid = ((IMIExecutionDMContext)context).getThreadId();
fVisualizer.getModel().markThreadExited(tid);
if (canvas != null) {
canvas.requestUpdate();
}
}
}
/** Invoked when the debug data model is ready */
@DsfServiceEventHandler
public void handleEvent(DataModelInitializedEvent event) {
// re-create the visualizer model now that CPU and core info is available
fVisualizer.update();
}
}
|
