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1 | /******************************************************************************* |
2 | * Copyright (c) 2016 École Polytechnique de Montréal | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials are | |
5 | * made available under the terms of the Eclipse Public License v1.0 which | |
6 | * accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | *******************************************************************************/ | |
9 | ||
10 | package org.eclipse.tracecompass.internal.lttng2.kernel.ui.views.vm.vcpuview; | |
11 | ||
12 | import java.util.ArrayList; | |
13 | import java.util.Collection; | |
14 | import java.util.Collections; | |
15 | import java.util.Comparator; | |
16 | import java.util.HashMap; | |
17 | import java.util.List; | |
18 | import java.util.Map; | |
19 | ||
20 | import org.eclipse.core.runtime.IProgressMonitor; | |
21 | import org.eclipse.jdt.annotation.NonNull; | |
22 | import org.eclipse.jdt.annotation.Nullable; | |
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23 | import org.eclipse.tracecompass.analysis.os.linux.core.kernel.KernelAnalysisModule; |
24 | import org.eclipse.tracecompass.analysis.os.linux.core.kernel.KernelThreadInformationProvider; | |
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25 | import org.eclipse.tracecompass.common.core.NonNullUtils; |
26 | import org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.vm.VmAttributes; | |
27 | import org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.vm.module.VirtualMachineCpuAnalysis; | |
28 | import org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.vm.trace.VirtualMachineExperiment; | |
29 | import org.eclipse.tracecompass.internal.lttng2.kernel.ui.Activator; | |
30 | import org.eclipse.tracecompass.internal.lttng2.kernel.ui.views.vm.vcpuview.VirtualMachineCommon.Type; | |
31 | import org.eclipse.tracecompass.statesystem.core.ITmfStateSystem; | |
32 | import org.eclipse.tracecompass.statesystem.core.StateSystemUtils; | |
33 | import org.eclipse.tracecompass.statesystem.core.exceptions.AttributeNotFoundException; | |
34 | import org.eclipse.tracecompass.statesystem.core.exceptions.StateSystemDisposedException; | |
35 | import org.eclipse.tracecompass.statesystem.core.exceptions.StateValueTypeException; | |
36 | import org.eclipse.tracecompass.statesystem.core.exceptions.TimeRangeException; | |
37 | import org.eclipse.tracecompass.statesystem.core.interval.ITmfStateInterval; | |
38 | import org.eclipse.tracecompass.tmf.core.statesystem.TmfStateSystemAnalysisModule; | |
39 | import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace; | |
40 | import org.eclipse.tracecompass.tmf.core.trace.TmfTraceUtils; | |
41 | import org.eclipse.tracecompass.tmf.core.trace.experiment.TmfExperimentUtils; | |
42 | import org.eclipse.tracecompass.tmf.ui.views.timegraph.AbstractTimeGraphView; | |
43 | import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.ITimeEvent; | |
44 | import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.ITimeGraphEntry; | |
45 | import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.NullTimeEvent; | |
46 | import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.TimeEvent; | |
47 | import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.TimeGraphEntry; | |
48 | ||
49 | import com.google.common.collect.Multimap; | |
50 | ||
51 | /** | |
52 | * Main implementation for the Virtual Machine view | |
53 | * | |
54 | * @author Mohamad Gebai | |
55 | */ | |
56 | public class VirtualMachineView extends AbstractTimeGraphView { | |
57 | ||
58 | /** View ID. */ | |
59 | public static final String ID = "org.eclipse.tracecompass.lttng2.analysis.vm.ui.vmview"; //$NON-NLS-1$ | |
60 | ||
61 | private static final String[] COLUMN_NAMES = new String[] { | |
62 | Messages.VmView_stateTypeName | |
63 | }; | |
64 | ||
65 | private static final String[] FILTER_COLUMN_NAMES = new String[] { | |
66 | Messages.VmView_stateTypeName | |
67 | }; | |
68 | ||
69 | // Timeout between updates in the build thread in ms | |
70 | private static final long BUILD_UPDATE_TIMEOUT = 500; | |
71 | private static final int[] DEFAULT_WEIGHT = { 1, 3 }; | |
72 | ||
6a492637 | 73 | private Comparator<ITimeGraphEntry> fComparator = VirtualMachineViewEntry.getComparator(); |
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74 | |
75 | // ------------------------------------------------------------------------ | |
76 | // Constructors | |
77 | // ------------------------------------------------------------------------ | |
78 | ||
79 | /** | |
80 | * Default constructor | |
81 | */ | |
82 | public VirtualMachineView() { | |
83 | super(ID, new VirtualMachinePresentationProvider()); | |
84 | setFilterColumns(FILTER_COLUMN_NAMES); | |
85 | setTreeColumns(COLUMN_NAMES); | |
86 | setTreeLabelProvider(new VmViewTreeLabelProvider()); | |
87 | setWeight(DEFAULT_WEIGHT); | |
88 | setAutoExpandLevel(2); | |
89 | } | |
90 | ||
91 | @Override | |
92 | protected @Nullable String getNextText() { | |
93 | return Messages.VmView_nextResourceActionNameText; | |
94 | } | |
95 | ||
96 | @Override | |
97 | protected @Nullable String getNextTooltip() { | |
98 | return Messages.VmView_nextResourceActionToolTipText; | |
99 | } | |
100 | ||
101 | @Override | |
102 | protected @Nullable String getPrevText() { | |
103 | return Messages.VmView_previousResourceActionNameText; | |
104 | } | |
105 | ||
106 | @Override | |
107 | protected @Nullable String getPrevTooltip() { | |
108 | return Messages.VmView_previousResourceActionToolTipText; | |
109 | } | |
110 | ||
111 | private static class VmViewTreeLabelProvider extends TreeLabelProvider { | |
112 | ||
113 | @Override | |
114 | public String getColumnText(@Nullable Object element, int columnIndex) { | |
115 | if (!(element instanceof VirtualMachineViewEntry)) { | |
116 | return ""; //$NON-NLS-1$ | |
117 | } | |
118 | VirtualMachineViewEntry entry = (VirtualMachineViewEntry) element; | |
119 | ||
120 | if (COLUMN_NAMES[columnIndex].equals(Messages.VmView_stateTypeName)) { | |
121 | String name = entry.getName(); | |
122 | return (name == null) ? "" : name; //$NON-NLS-1$ | |
123 | } | |
124 | return ""; //$NON-NLS-1$ | |
125 | } | |
126 | ||
127 | } | |
128 | ||
129 | // ------------------------------------------------------------------------ | |
130 | // Internal | |
131 | // ------------------------------------------------------------------------ | |
132 | ||
133 | @Override | |
134 | protected void buildEventList(ITmfTrace trace, ITmfTrace parentTrace, IProgressMonitor monitor) { | |
135 | setStartTime(Long.MAX_VALUE); | |
136 | setEndTime(Long.MIN_VALUE); | |
137 | ||
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138 | if (!(parentTrace instanceof VirtualMachineExperiment)) { |
139 | return; | |
140 | } | |
141 | ITmfStateSystem ssq = TmfStateSystemAnalysisModule.getStateSystem(parentTrace, VirtualMachineCpuAnalysis.ID); | |
142 | if (ssq == null) { | |
143 | return; | |
144 | } | |
145 | VirtualMachineExperiment vmExperiment = (VirtualMachineExperiment) parentTrace; | |
146 | long startTime = ssq.getStartTime(); | |
147 | ||
148 | ArrayList<VirtualMachineViewEntry> entryList = new ArrayList<>(); | |
149 | Map<String, VirtualMachineViewEntry> entryMap = new HashMap<>(); | |
150 | ||
151 | boolean complete = false; | |
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152 | VirtualMachineViewEntry groupEntry = new VirtualMachineViewEntry.VmEntryBuilder(vmExperiment.getName(), startTime, startTime, vmExperiment).build(); |
153 | entryList.add(groupEntry); | |
154 | putEntryList(parentTrace, new ArrayList<TimeGraphEntry>(entryList)); | |
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155 | |
156 | while (!complete) { | |
157 | if (monitor.isCanceled()) { | |
158 | return; | |
159 | } | |
160 | complete = ssq.waitUntilBuilt(BUILD_UPDATE_TIMEOUT); | |
161 | if (ssq.isCancelled()) { | |
162 | return; | |
163 | } | |
164 | ||
165 | long endTime = ssq.getCurrentEndTime() + 1; | |
507e1c50 | 166 | groupEntry.updateEndTime(endTime); |
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167 | |
168 | setStartTime(Math.min(getStartTime(), startTime)); | |
169 | setEndTime(Math.max(getEndTime(), endTime)); | |
170 | ||
171 | /* | |
172 | * Create the entries for the VMs in this experiment and their | |
173 | * respective threads | |
174 | */ | |
175 | buildEntries(ssq, startTime, endTime, groupEntry, entryMap, vmExperiment); | |
176 | ||
177 | if (parentTrace.equals(getTrace())) { | |
178 | refresh(); | |
179 | } | |
180 | ||
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181 | /* Build event lists for each entry */ |
182 | buildEntryEventLists(entryList, ssq, startTime, endTime, monitor); | |
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183 | } |
184 | } | |
185 | ||
186 | private void buildEntries(ITmfStateSystem ssq, long startTime, long endTime, VirtualMachineViewEntry groupEntry, | |
187 | Map<@NonNull String, @NonNull VirtualMachineViewEntry> entryMap, VirtualMachineExperiment vmExperiment) { | |
188 | try { | |
189 | List<Integer> vmQuarks = ssq.getQuarks(VmAttributes.VIRTUAL_MACHINES, "*"); //$NON-NLS-1$ | |
190 | /* For each virtual machine in the analysis */ | |
191 | for (Integer vmQuark : vmQuarks) { | |
192 | ||
193 | /* Display an entry for the virtual machine */ | |
0e4f957e | 194 | String vmHostId = ssq.getAttributeName(vmQuark); |
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195 | ITmfStateInterval vmNameInterval = StateSystemUtils.queryUntilNonNullValue(ssq, vmQuark, startTime, endTime); |
196 | String vmName = vmHostId; | |
197 | if (vmNameInterval != null) { | |
198 | vmName = vmNameInterval.getStateValue().unboxStr(); | |
199 | } | |
200 | ||
201 | VirtualMachineViewEntry vmEntry = entryMap.get(vmHostId); | |
202 | if (vmEntry == null) { | |
203 | vmEntry = new VirtualMachineViewEntry.VmEntryBuilder(vmName, startTime, endTime, vmExperiment).setId(vmHostId).setVmName(vmName).setNumericId(vmQuark).setType(Type.VM).build(); | |
204 | vmEntry.sortChildren(fComparator); | |
205 | ||
206 | groupEntry.addChild(vmEntry); | |
207 | entryMap.put(vmHostId, vmEntry); | |
208 | } else { | |
209 | vmEntry.updateEndTime(endTime); | |
210 | } | |
211 | ||
212 | /* Display an entry for each of its CPUs */ | |
213 | for (Integer vCpuQuark : ssq.getSubAttributes(vmQuark, false)) { | |
214 | String vcpuId = ssq.getAttributeName(vCpuQuark); | |
215 | VirtualMachineViewEntry vcpuEntry = entryMap.get(vmHostId + vcpuId); | |
216 | if (vcpuEntry == null) { | |
217 | vcpuEntry = new VirtualMachineViewEntry.VmEntryBuilder(vcpuId, startTime, endTime, vmExperiment).setId(vcpuId).setVmName(vmName).setNumericId(vCpuQuark).setType(Type.VCPU).build(); | |
218 | ||
219 | vmEntry.addChild(vcpuEntry); | |
220 | entryMap.put(vmHostId + vcpuId, vcpuEntry); | |
221 | } else { | |
222 | vcpuEntry.updateEndTime(endTime); | |
223 | } | |
224 | ||
225 | } | |
226 | ||
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227 | /* Add the entries for the threads */ |
228 | buildThreadEntries(vmEntry, entryMap, startTime, endTime); | |
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229 | } |
230 | } catch (AttributeNotFoundException e) { | |
231 | /* | |
232 | * The attribute may not exist yet if the state system is being | |
233 | * built | |
234 | */ | |
235 | } catch (TimeRangeException | StateValueTypeException e) { | |
236 | Activator.getDefault().logError("VirtualMachineView: error building event list", e); //$NON-NLS-1$ | |
237 | } | |
238 | } | |
239 | ||
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240 | private static void buildThreadEntries(VirtualMachineViewEntry vmEntry, Map<String, VirtualMachineViewEntry> entryMap, long startTime, long endTime) { |
241 | String vmHostId = vmEntry.getId(); | |
242 | VirtualMachineExperiment vmExperiment = vmEntry.getExperiment(); | |
243 | ||
244 | /* | |
245 | * Get the LTTng Kernel analysis module from the corresponding trace | |
246 | */ | |
247 | KernelAnalysisModule kernelModule = TmfExperimentUtils.getAnalysisModuleOfClassForHost(vmExperiment, vmHostId, KernelAnalysisModule.class); | |
248 | if (kernelModule == null) { | |
249 | return; | |
250 | } | |
251 | ||
252 | VirtualMachineViewEntry threadEntry = entryMap.get(vmHostId + NonNullUtils.nullToEmptyString(Messages.VmView_threads)); | |
253 | if (threadEntry == null) { | |
254 | threadEntry = new VirtualMachineViewEntry.VmEntryBuilder(NonNullUtils.nullToEmptyString(Messages.VmView_threads), startTime, endTime, vmExperiment).build(); | |
255 | entryMap.put(vmHostId + NonNullUtils.nullToEmptyString(Messages.VmView_threads), threadEntry); | |
256 | vmEntry.addChild(threadEntry); | |
257 | } else { | |
258 | threadEntry.updateEndTime(endTime); | |
259 | } | |
260 | ||
261 | String vmName = vmEntry.getVmName(); | |
262 | if (vmName == null) { | |
263 | return; | |
264 | } | |
265 | ||
266 | /* | |
267 | * Display an entry for each thread. | |
268 | * | |
269 | * For each interval that is in a running status, intersect with the | |
270 | * status of the virtual CPU it is currently running on | |
271 | */ | |
272 | Collection<Integer> threadIds = KernelThreadInformationProvider.getThreadIds(kernelModule); | |
273 | for (Integer threadId : threadIds) { | |
274 | if (threadId == -1) { | |
275 | continue; | |
276 | } | |
277 | VirtualMachineViewEntry oneThreadEntry = entryMap.get(vmHostId + ':' + threadId); | |
278 | if (oneThreadEntry != null) { | |
279 | oneThreadEntry.updateEndTime(endTime); | |
280 | continue; | |
281 | } | |
282 | /* | |
283 | * FIXME: Only add threads that are active during the trace | |
284 | */ | |
285 | String threadName = KernelThreadInformationProvider.getExecutableName(kernelModule, threadId); | |
0e4f957e | 286 | String tidString = threadId.toString(); |
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287 | threadName = (threadName != null) ? tidString + ':' + ' ' + threadName : tidString; |
288 | oneThreadEntry = new VirtualMachineViewEntry.VmEntryBuilder(threadName, startTime, endTime, vmExperiment).setId(threadName).setVmName(vmName).setNumericId(threadId).setType(Type.THREAD).build(); | |
289 | ||
290 | threadEntry.addChild(oneThreadEntry); | |
291 | entryMap.put(vmHostId + ':' + threadId, oneThreadEntry); | |
292 | } | |
293 | ||
294 | } | |
295 | ||
00c15db6 | 296 | private void buildEntryEventLists(List<@NonNull VirtualMachineViewEntry> entryList, ITmfStateSystem ssq, long startTime, long endTime, IProgressMonitor monitor) { |
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297 | for (VirtualMachineViewEntry entry : entryList) { |
298 | if (monitor.isCanceled()) { | |
299 | return; | |
300 | } | |
301 | buildEntryEventList(entry, ssq, startTime, endTime, monitor); | |
302 | } | |
303 | } | |
304 | ||
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305 | private void buildEntryEventList(TimeGraphEntry entry, ITmfStateSystem ssq, long start, long end, IProgressMonitor monitor) { |
306 | if (start < entry.getEndTime() && end > entry.getStartTime()) { | |
307 | ||
308 | long startTime = Math.max(start, entry.getStartTime()); | |
309 | long endTime = Math.min(end + 1, entry.getEndTime()); | |
310 | long resolution = Math.max(1, (end - ssq.getStartTime()) / getDisplayWidth()); | |
311 | List<ITimeEvent> eventList = getEventList(entry, startTime, endTime, resolution, monitor); | |
312 | entry.setEventList(eventList); | |
313 | redraw(); | |
314 | for (ITimeGraphEntry child : entry.getChildren()) { | |
315 | if (!(child instanceof TimeGraphEntry)) { | |
316 | continue; | |
317 | } | |
318 | if (monitor.isCanceled()) { | |
319 | return; | |
320 | } | |
321 | buildEntryEventList((TimeGraphEntry) child, ssq, start, end, monitor); | |
322 | } | |
323 | } | |
324 | } | |
325 | ||
326 | @Override | |
327 | protected @Nullable List<ITimeEvent> getEventList(TimeGraphEntry entry, | |
328 | long startTime, long endTime, long resolution, | |
329 | IProgressMonitor monitor) { | |
330 | if (!(entry instanceof VirtualMachineViewEntry)) { | |
331 | return null; | |
332 | } | |
333 | if (monitor.isCanceled()) { | |
334 | return null; | |
335 | } | |
336 | ||
337 | VirtualMachineViewEntry vmEntry = (VirtualMachineViewEntry) entry; | |
338 | ||
339 | switch (vmEntry.getType()) { | |
340 | case THREAD: { | |
507e1c50 | 341 | return getThreadEventList(vmEntry, endTime, monitor); |
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342 | } |
343 | case VCPU: { | |
507e1c50 | 344 | return getVcpuEventList(vmEntry, startTime, endTime, resolution, monitor); |
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345 | } |
346 | case VM: { | |
347 | VirtualMachineExperiment experiment = vmEntry.getExperiment(); | |
507e1c50 | 348 | VirtualMachineCpuAnalysis vmAnalysis = TmfTraceUtils.getAnalysisModuleOfClass(experiment, VirtualMachineCpuAnalysis.class, VirtualMachineCpuAnalysis.ID); |
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349 | if (vmAnalysis == null) { |
350 | break; | |
351 | } | |
352 | Multimap<Integer, ITmfStateInterval> updatedThreadIntervals = vmAnalysis.getUpdatedThreadIntervals(vmEntry.getNumericId(), startTime, endTime, resolution, monitor); | |
353 | vmEntry.setThreadIntervals(updatedThreadIntervals); | |
354 | } | |
355 | break; | |
356 | case NULL: | |
357 | /* These entry types are not used in this view */ | |
358 | break; | |
359 | default: | |
360 | break; | |
361 | } | |
362 | ||
363 | return null; | |
364 | } | |
365 | ||
507e1c50 | 366 | private static @Nullable List<@NonNull ITimeEvent> getVcpuEventList(VirtualMachineViewEntry vmEntry, long startTime, long endTime, long resolution, IProgressMonitor monitor) { |
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367 | List<ITimeEvent> eventList = null; |
368 | try { | |
369 | int quark = vmEntry.getNumericId(); | |
370 | ||
371 | ITmfStateSystem ssq = TmfStateSystemAnalysisModule.getStateSystem(vmEntry.getExperiment(), VirtualMachineCpuAnalysis.ID); | |
372 | if (ssq == null) { | |
373 | return Collections.EMPTY_LIST; | |
374 | } | |
375 | final long realStart = Math.max(startTime, ssq.getStartTime()); | |
376 | final long realEnd = Math.min(endTime, ssq.getCurrentEndTime() + 1); | |
377 | if (realEnd <= realStart) { | |
378 | return Collections.EMPTY_LIST; | |
379 | } | |
380 | quark = ssq.getQuarkRelative(quark, VmAttributes.STATUS); | |
381 | List<ITmfStateInterval> statusIntervals = StateSystemUtils.queryHistoryRange(ssq, quark, realStart, realEnd - 1, resolution, monitor); | |
b1a7aebb | 382 | |
507e1c50 | 383 | eventList = parseIntervalsForEvents(vmEntry, statusIntervals, endTime, monitor); |
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384 | } catch (AttributeNotFoundException | TimeRangeException | StateValueTypeException e) { |
385 | Activator.getDefault().logError("Error getting event list", e); //$NON-NLS-1$ | |
386 | } catch (StateSystemDisposedException e) { | |
387 | /* Ignored */ | |
388 | } | |
389 | return eventList; | |
390 | } | |
391 | ||
507e1c50 | 392 | private static @Nullable List<@NonNull ITimeEvent> getThreadEventList(VirtualMachineViewEntry vmEntry, long endTime, IProgressMonitor monitor) { |
b1a7aebb | 393 | List<ITimeEvent> eventList = null; |
507e1c50 GB |
394 | Collection<ITmfStateInterval> threadIntervals = getThreadIntervalsForEntry(vmEntry); |
395 | ||
396 | if (threadIntervals != null) { | |
397 | /* | |
398 | * FIXME: I think the key for the alpha bug when alpha overlaps | |
399 | * multiple events is around here | |
400 | * | |
401 | * Hint by Patrick: "The problem is that the thread intervals | |
402 | * are sorted by start time, and drawn in that order. | |
403 | * | |
404 | * Given the intervals: Blue [0,10] Alpha [5,15] Red [10,20] | |
405 | * | |
406 | * Blue is drawn, then Alpha makes DarkBlue from [5,10] and | |
407 | * DarkBackground from [10,15], then Red is drawn over [10,20], | |
408 | * overwriting the DarkBackground. There is no DarkRed. | |
409 | * | |
410 | * For this to work you would have to draw all real states | |
411 | * first, then all alpha states second. | |
412 | * | |
413 | * I think this would also have the side-effect that the find | |
414 | * item used for tool tips would always find the real event and | |
415 | * never the alpha event. This might be what we want. Right now | |
416 | * the tool tip has State: (multiple). | |
417 | * | |
418 | * But using the Next Event button, we would skip to the next | |
419 | * real event and not at the preemption event. Maybe not what we | |
420 | * want. | |
421 | * | |
422 | * Maybe what we need is separate thread interval events: | |
423 | * | |
424 | * Blue [0,5] Preempted Blue [5,10] Preempted Red [10,15] Red | |
425 | * [15,20]... | |
426 | * | |
427 | * The preempted events would have the real state value, but | |
428 | * with a flag for alpha to be used in the postDrawEvent." | |
429 | */ | |
430 | eventList = parseIntervalsForEvents(vmEntry, threadIntervals, endTime, monitor); | |
431 | } | |
432 | return eventList; | |
433 | } | |
434 | ||
435 | private static @Nullable List<@NonNull ITimeEvent> parseIntervalsForEvents(VirtualMachineViewEntry vmEntry, Collection<@NonNull ITmfStateInterval> intervals, long endTime, IProgressMonitor monitor) { | |
436 | List<ITimeEvent> eventList = new ArrayList<>(intervals.size()); | |
437 | long lastEndTime = -1; | |
438 | for (ITmfStateInterval interval : intervals) { | |
439 | if (monitor.isCanceled()) { | |
440 | return null; | |
441 | } | |
442 | ||
443 | long time = interval.getStartTime(); | |
444 | long duration = interval.getEndTime() - time + 1; | |
445 | if (!interval.getStateValue().isNull()) { | |
446 | int status = interval.getStateValue().unboxInt(); | |
447 | if (lastEndTime != time && lastEndTime != -1) { | |
448 | eventList.add(new TimeEvent(vmEntry, lastEndTime, time - lastEndTime)); | |
449 | } | |
450 | eventList.add(new TimeEvent(vmEntry, time, duration, status)); | |
451 | } else if (lastEndTime == -1 || time + duration >= endTime) { | |
452 | /* add null event if it intersects the start or end time */ | |
453 | eventList.add(new NullTimeEvent(vmEntry, time, duration)); | |
454 | } | |
455 | lastEndTime = time + duration; | |
456 | } | |
457 | ||
458 | return eventList; | |
459 | } | |
460 | ||
461 | private static @Nullable Collection<@NonNull ITmfStateInterval> getThreadIntervalsForEntry(VirtualMachineViewEntry vmEntry) { | |
462 | Collection<ITmfStateInterval> threadIntervals = null; | |
463 | ||
b1a7aebb | 464 | /* |
507e1c50 GB |
465 | * The parent VM entry will contain the thread intervals for all |
466 | * threads. Just take the list from there | |
b1a7aebb | 467 | */ |
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468 | ITimeGraphEntry parent = vmEntry.getParent(); |
469 | while (threadIntervals == null && parent != null) { | |
470 | if (parent instanceof VirtualMachineViewEntry) { | |
471 | threadIntervals = ((VirtualMachineViewEntry) parent).getThreadIntervals(vmEntry.getNumericId()); | |
472 | } | |
473 | if (parent instanceof TimeGraphEntry) { | |
474 | parent = ((TimeGraphEntry) parent).getParent(); | |
475 | } | |
476 | } | |
507e1c50 | 477 | return threadIntervals; |
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478 | } |
479 | ||
480 | @Override | |
481 | protected Iterable<ITmfTrace> getTracesToBuild(@Nullable ITmfTrace trace) { | |
482 | if (trace == null) { | |
0e4f957e | 483 | return Collections.EMPTY_SET; |
b1a7aebb | 484 | } |
0e4f957e | 485 | return Collections.singleton(trace); |
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486 | } |
487 | ||
488 | } |