org.eclipse.linuxtools.lttng2.kernel.ui/src/org/eclipse/linuxtools/internal/lttng2/kernel/ui/views/resources/ResourcesView.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012, 2013 Ericsson
   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  * Contributors:
  10  *   Patrick Tasse - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.internal.lttng2.kernel.ui.views.resources;
  14
  15 import java.util.ArrayList;
  16 import java.util.Arrays;
  17 import java.util.Comparator;
  18 import java.util.HashMap;
  19 import java.util.Iterator;
  20 import java.util.List;
  21
  22 import org.eclipse.core.runtime.IProgressMonitor;
  23 import org.eclipse.core.runtime.NullProgressMonitor;
  24 import org.eclipse.jface.action.Action;
  25 import org.eclipse.jface.action.IToolBarManager;
  26 import org.eclipse.jface.action.Separator;
  27 import org.eclipse.linuxtools.internal.lttng2.kernel.core.Attributes;
  28 import org.eclipse.linuxtools.internal.lttng2.kernel.ui.Messages;
  29 import org.eclipse.linuxtools.internal.lttng2.kernel.ui.views.resources.ResourcesEntry.Type;
  30 import org.eclipse.linuxtools.lttng2.kernel.core.trace.LttngKernelTrace;
  31 import org.eclipse.linuxtools.tmf.core.ctfadaptor.CtfTmfTimestamp;
  32 import org.eclipse.linuxtools.tmf.core.exceptions.AttributeNotFoundException;
  33 import org.eclipse.linuxtools.tmf.core.exceptions.StateSystemDisposedException;
  34 import org.eclipse.linuxtools.tmf.core.exceptions.StateValueTypeException;
  35 import org.eclipse.linuxtools.tmf.core.exceptions.TimeRangeException;
  36 import org.eclipse.linuxtools.tmf.core.interval.ITmfStateInterval;
  37 import org.eclipse.linuxtools.tmf.core.signal.TmfRangeSynchSignal;
  38 import org.eclipse.linuxtools.tmf.core.signal.TmfSignalHandler;
  39 import org.eclipse.linuxtools.tmf.core.signal.TmfTimeSynchSignal;
  40 import org.eclipse.linuxtools.tmf.core.signal.TmfTraceClosedSignal;
  41 import org.eclipse.linuxtools.tmf.core.signal.TmfTraceOpenedSignal;
  42 import org.eclipse.linuxtools.tmf.core.signal.TmfTraceSelectedSignal;
  43 import org.eclipse.linuxtools.tmf.core.statesystem.ITmfStateSystem;
  44 import org.eclipse.linuxtools.tmf.core.timestamp.ITmfTimestamp;
  45 import org.eclipse.linuxtools.tmf.core.timestamp.TmfTimeRange;
  46 import org.eclipse.linuxtools.tmf.core.timestamp.TmfTimestamp;
  47 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
  48 import org.eclipse.linuxtools.tmf.core.trace.TmfTraceManager;
  49 import org.eclipse.linuxtools.tmf.ui.views.TmfView;
  50 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.ITimeGraphRangeListener;
  51 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.ITimeGraphTimeListener;
  52 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.TimeGraphRangeUpdateEvent;
  53 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.TimeGraphTimeEvent;
  54 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.TimeGraphViewer;
  55 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ITimeEvent;
  56 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ITimeGraphEntry;
  57 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.TimeEvent;
  58 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets.Utils.TimeFormat;
  59 import org.eclipse.swt.SWT;
  60 import org.eclipse.swt.widgets.Composite;
  61 import org.eclipse.swt.widgets.Display;
  62 import org.eclipse.ui.IActionBars;
  63
  64 /**
  65  * Main implementation for the LTTng 2.0 kernel Resource view
  66  *
  67  * @author Patrick Tasse
  68  */
  69 public class ResourcesView extends TmfView {
  70
  71     // ------------------------------------------------------------------------
  72     // Constants
  73     // ------------------------------------------------------------------------
  74
  75     /** View ID. */
  76     public static final String ID = "org.eclipse.linuxtools.lttng2.kernel.ui.views.resources"; //$NON-NLS-1$
  77
  78     /**
  79      * Redraw state enum
  80      */
  81     private enum State { IDLE, BUSY, PENDING }
  82
  83     // ------------------------------------------------------------------------
  84     // Fields
  85     // ------------------------------------------------------------------------
  86
  87     // The time graph viewer
  88     TimeGraphViewer fTimeGraphViewer;
  89
  90     // The selected trace
  91     private ITmfTrace fTrace;
  92
  93     // The time graph entry list
  94     private ArrayList<TraceEntry> fEntryList;
  95
  96     // The trace to entry list hash map
  97     final private HashMap<ITmfTrace, ArrayList<TraceEntry>> fEntryListMap = new HashMap<ITmfTrace, ArrayList<TraceEntry>>();
  98
  99     // The trace to build thread hash map
 100     final private HashMap<ITmfTrace, BuildThread> fBuildThreadMap = new HashMap<ITmfTrace, BuildThread>();
 101
 102     // The start time
 103     private long fStartTime;
 104
 105     // The end time
 106     private long fEndTime;
 107
 108     // The display width
 109     private final int fDisplayWidth;
 110
 111     // The next resource action
 112     private Action fNextResourceAction;
 113
 114     // The previous resource action
 115     private Action fPreviousResourceAction;
 116
 117     // The zoom thread
 118     private ZoomThread fZoomThread;
 119
 120     // The redraw state used to prevent unnecessary queuing of display runnables
 121     private State fRedrawState = State.IDLE;
 122
 123     // The redraw synchronization object
 124     final private Object fSyncObj = new Object();
 125
 126     // ------------------------------------------------------------------------
 127     // Classes
 128     // ------------------------------------------------------------------------
 129
 130     private class TraceEntry implements ITimeGraphEntry {
 131         // The Trace
 132         private final LttngKernelTrace fKernelTrace;
 133         // The start time
 134         private final long fTraceStartTime;
 135         // The end time
 136         private final long fTraceEndTime;
 137         // The children of the entry
 138         private final ArrayList<ResourcesEntry> fChildren;
 139         // The name of entry
 140         private final String fName;
 141
 142         public TraceEntry(LttngKernelTrace trace, String name, long startTime, long endTime) {
 143             fKernelTrace = trace;
 144             fChildren = new ArrayList<ResourcesEntry>();
 145             fName = name;
 146             fTraceStartTime = startTime;
 147             fTraceEndTime = endTime;
 148         }
 149
 150         @Override
 151         public ITimeGraphEntry getParent() {
 152             return null;
 153         }
 154
 155         @Override
 156         public boolean hasChildren() {
 157             return fChildren != null && fChildren.size() > 0;
 158         }
 159
 160         @Override
 161         public List<ResourcesEntry> getChildren() {
 162             return fChildren;
 163         }
 164
 165         @Override
 166         public String getName() {
 167             return fName;
 168         }
 169
 170         @Override
 171         public long getStartTime() {
 172             return fTraceStartTime;
 173         }
 174
 175         @Override
 176         public long getEndTime() {
 177             return fTraceEndTime;
 178         }
 179
 180         @Override
 181         public boolean hasTimeEvents() {
 182             return false;
 183         }
 184
 185         @Override
 186         public Iterator<ITimeEvent> getTimeEventsIterator() {
 187             return null;
 188         }
 189
 190         @Override
 191         public <T extends ITimeEvent> Iterator<T> getTimeEventsIterator(long startTime, long stopTime, long visibleDuration) {
 192             return null;
 193         }
 194
 195         public LttngKernelTrace getTrace() {
 196             return fKernelTrace;
 197         }
 198
 199         public void addChild(ResourcesEntry entry) {
 200             int index;
 201             for (index = 0; index < fChildren.size(); index++) {
 202                 ResourcesEntry other = fChildren.get(index);
 203                 if (entry.getType().compareTo(other.getType()) < 0) {
 204                     break;
 205                 } else if (entry.getType().equals(other.getType())) {
 206                     if (entry.getId() < other.getId()) {
 207                         break;
 208                     }
 209                 }
 210             }
 211             entry.setParent(this);
 212             fChildren.add(index, entry);
 213         }
 214     }
 215
 216     private static class TraceEntryComparator implements Comparator<ITimeGraphEntry> {
 217         @Override
 218         public int compare(ITimeGraphEntry o1, ITimeGraphEntry o2) {
 219             int result = o1.getStartTime() < o2.getStartTime() ? -1 : o1.getStartTime() > o2.getStartTime() ? 1 : 0;
 220             if (result == 0) {
 221                 result = o1.getName().compareTo(o2.getName());
 222             }
 223             return result;
 224         }
 225     }
 226
 227     private class BuildThread extends Thread {
 228         private final ITmfTrace fBuildTrace;
 229         private final IProgressMonitor fMonitor;
 230
 231         public BuildThread(ITmfTrace trace) {
 232             super("ResourcesView build"); //$NON-NLS-1$
 233             fBuildTrace = trace;
 234             fMonitor = new NullProgressMonitor();
 235         }
 236
 237         @Override
 238         public void run() {
 239             buildEventList(fBuildTrace, fMonitor);
 240             synchronized (fBuildThreadMap) {
 241                 fBuildThreadMap.remove(this);
 242             }
 243         }
 244
 245         public void cancel() {
 246             fMonitor.setCanceled(true);
 247         }
 248     }
 249
 250     private class ZoomThread extends Thread {
 251         private final ArrayList<TraceEntry> fZoomEntryList;
 252         private final long fZoomStartTime;
 253         private final long fZoomEndTime;
 254         private final IProgressMonitor fMonitor;
 255
 256         public ZoomThread(ArrayList<TraceEntry> entryList, long startTime, long endTime) {
 257             super("ResourcesView zoom"); //$NON-NLS-1$
 258             fZoomEntryList = entryList;
 259             fZoomStartTime = startTime;
 260             fZoomEndTime = endTime;
 261             fMonitor = new NullProgressMonitor();
 262         }
 263
 264         @Override
 265         public void run() {
 266             if (fZoomEntryList == null) {
 267                 return;
 268             }
 269             long resolution = Math.max(1, (fZoomEndTime - fZoomStartTime) / fDisplayWidth);
 270             for (TraceEntry traceEntry : fZoomEntryList) {
 271                 if (!traceEntry.fKernelTrace.getStateSystems().get(LttngKernelTrace.STATE_ID).waitUntilBuilt()) {
 272                     return;
 273                 }
 274                 for (ITimeGraphEntry child : traceEntry.getChildren()) {
 275                     if (fMonitor.isCanceled()) {
 276                         break;
 277                     }
 278                     ResourcesEntry entry = (ResourcesEntry) child;
 279                     if (fZoomStartTime <= fStartTime && fZoomEndTime >= fEndTime) {
 280                         entry.setZoomedEventList(null);
 281                     } else {
 282                         List<ITimeEvent> zoomedEventList = getEventList(entry, fZoomStartTime, fZoomEndTime, resolution, true, fMonitor);
 283                         if (zoomedEventList != null) {
 284                             entry.setZoomedEventList(zoomedEventList);
 285                         }
 286                     }
 287                     redraw();
 288                 }
 289             }
 290         }
 291
 292         public void cancel() {
 293             fMonitor.setCanceled(true);
 294         }
 295     }
 296
 297     // ------------------------------------------------------------------------
 298     // Constructors
 299     // ------------------------------------------------------------------------
 300
 301     /**
 302      * Default constructor
 303      */
 304     public ResourcesView() {
 305         super(ID);
 306         fDisplayWidth = Display.getDefault().getBounds().width;
 307     }
 308
 309     // ------------------------------------------------------------------------
 310     // ViewPart
 311     // ------------------------------------------------------------------------
 312
 313     @Override
 314     public void createPartControl(Composite parent) {
 315         fTimeGraphViewer = new TimeGraphViewer(parent, SWT.NONE);
 316
 317         fTimeGraphViewer.setTimeGraphProvider(new ResourcesPresentationProvider(fTimeGraphViewer));
 318
 319         fTimeGraphViewer.setTimeFormat(TimeFormat.CALENDAR);
 320
 321         fTimeGraphViewer.addRangeListener(new ITimeGraphRangeListener() {
 322             @Override
 323             public void timeRangeUpdated(TimeGraphRangeUpdateEvent event) {
 324                 long startTime = event.getStartTime();
 325                 long endTime = event.getEndTime();
 326                 TmfTimeRange range = new TmfTimeRange(new CtfTmfTimestamp(startTime), new CtfTmfTimestamp(endTime));
 327                 TmfTimestamp time = new CtfTmfTimestamp(fTimeGraphViewer.getSelectedTime());
 328                 broadcast(new TmfRangeSynchSignal(ResourcesView.this, range, time));
 329                 startZoomThread(startTime, endTime);
 330             }
 331         });
 332
 333         fTimeGraphViewer.addTimeListener(new ITimeGraphTimeListener() {
 334             @Override
 335             public void timeSelected(TimeGraphTimeEvent event) {
 336                 long time = event.getTime();
 337                 broadcast(new TmfTimeSynchSignal(ResourcesView.this, new CtfTmfTimestamp(time)));
 338             }
 339         });
 340
 341         // View Action Handling
 342         makeActions();
 343         contributeToActionBars();
 344
 345         ITmfTrace trace = getActiveTrace();
 346         if (trace != null) {
 347             traceSelected(new TmfTraceSelectedSignal(this, trace));
 348         }
 349     }
 350
 351     @Override
 352     public void setFocus() {
 353         fTimeGraphViewer.setFocus();
 354     }
 355
 356     // ------------------------------------------------------------------------
 357     // Signal handlers
 358     // ------------------------------------------------------------------------
 359
 360     /**
 361      * Handler for the trace opened signal.
 362      * @param signal the trace selected signal
 363      * @since 2.0
 364      */
 365     @TmfSignalHandler
 366     public void traceOpened(TmfTraceOpenedSignal signal) {
 367         fTrace = signal.getTrace();
 368         loadTrace();
 369     }
 370
 371     /**
 372      * Handler for the trace selected signal
 373      *
 374      * @param signal
 375      *            The incoming signal
 376      */
 377     @TmfSignalHandler
 378     public void traceSelected(final TmfTraceSelectedSignal signal) {
 379         if (signal.getTrace() == fTrace) {
 380             return;
 381         }
 382         fTrace = signal.getTrace();
 383         loadTrace();
 384     }
 385
 386     /**
 387      * Trace is disposed: clear the data structures and the view
 388      *
 389      * @param signal the signal received
 390      */
 391     @TmfSignalHandler
 392     public void traceClosed(final TmfTraceClosedSignal signal) {
 393         synchronized (fBuildThreadMap) {
 394             BuildThread buildThread = fBuildThreadMap.remove(signal.getTrace());
 395             if (buildThread != null) {
 396                 buildThread.cancel();
 397             }
 398         }
 399         synchronized (fEntryListMap) {
 400             fEntryListMap.remove(signal.getTrace());
 401         }
 402         if (signal.getTrace() == fTrace) {
 403             fTrace = null;
 404             fStartTime = 0;
 405             fEndTime = 0;
 406             if (fZoomThread != null) {
 407                 fZoomThread.cancel();
 408             }
 409             refresh();
 410         }
 411     }
 412
 413     /**
 414      * Handler for the TimeSynch signal
 415      *
 416      * @param signal
 417      *            The incoming signal
 418      */
 419     @TmfSignalHandler
 420     public void synchToTime(final TmfTimeSynchSignal signal) {
 421         if (signal.getSource() == this || fTrace == null) {
 422             return;
 423         }
 424         final long time = signal.getCurrentTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 425         Display.getDefault().asyncExec(new Runnable() {
 426             @Override
 427             public void run() {
 428                 if (fTimeGraphViewer.getControl().isDisposed()) {
 429                     return;
 430                 }
 431                 fTimeGraphViewer.setSelectedTime(time, true);
 432                 startZoomThread(fTimeGraphViewer.getTime0(), fTimeGraphViewer.getTime1());
 433             }
 434         });
 435     }
 436
 437     /**
 438      * Handler for the RangeSynch signal
 439      *
 440      * @param signal
 441      *            The incoming signal
 442      */
 443     @TmfSignalHandler
 444     public void synchToRange(final TmfRangeSynchSignal signal) {
 445         if (signal.getSource() == this || fTrace == null) {
 446             return;
 447         }
 448         if (signal.getCurrentRange().getIntersection(fTrace.getTimeRange()) == null) {
 449             return;
 450         }
 451         final long startTime = signal.getCurrentRange().getStartTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 452         final long endTime = signal.getCurrentRange().getEndTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 453         final long time = signal.getCurrentTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 454         Display.getDefault().asyncExec(new Runnable() {
 455             @Override
 456             public void run() {
 457                 if (fTimeGraphViewer.getControl().isDisposed()) {
 458                     return;
 459                 }
 460                 fTimeGraphViewer.setStartFinishTime(startTime, endTime);
 461                 fTimeGraphViewer.setSelectedTime(time, false);
 462                 startZoomThread(startTime, endTime);
 463             }
 464         });
 465     }
 466
 467     // ------------------------------------------------------------------------
 468     // Internal
 469     // ------------------------------------------------------------------------
 470
 471     private void loadTrace() {
 472         synchronized (fEntryListMap) {
 473             fEntryList = fEntryListMap.get(fTrace);
 474             if (fEntryList == null) {
 475                 synchronized (fBuildThreadMap) {
 476                     BuildThread buildThread = new BuildThread(fTrace);
 477                     fBuildThreadMap.put(fTrace, buildThread);
 478                     buildThread.start();
 479                 }
 480             } else {
 481                 fStartTime = fTrace.getStartTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 482                 fEndTime = fTrace.getEndTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 483                 refresh();
 484             }
 485         }
 486     }
 487
 488     private void buildEventList(final ITmfTrace trace, IProgressMonitor monitor) {
 489         fStartTime = Long.MAX_VALUE;
 490         fEndTime = Long.MIN_VALUE;
 491         ArrayList<TraceEntry> entryList = new ArrayList<TraceEntry>();
 492         for (ITmfTrace aTrace : TmfTraceManager.getTraceSet(trace)) {
 493             if (monitor.isCanceled()) {
 494                 return;
 495             }
 496             if (aTrace instanceof LttngKernelTrace) {
 497                 LttngKernelTrace ctfKernelTrace = (LttngKernelTrace) aTrace;
 498                 ITmfStateSystem ssq = ctfKernelTrace.getStateSystems().get(LttngKernelTrace.STATE_ID);
 499                 if (!ssq.waitUntilBuilt()) {
 500                     return;
 501                 }
 502                 long startTime = ssq.getStartTime();
 503                 long endTime = ssq.getCurrentEndTime() + 1;
 504                 TraceEntry groupEntry = new TraceEntry(ctfKernelTrace, aTrace.getName(), startTime, endTime);
 505                 entryList.add(groupEntry);
 506                 fStartTime = Math.min(fStartTime, startTime);
 507                 fEndTime = Math.max(fEndTime, endTime);
 508                 List<Integer> cpuQuarks = ssq.getQuarks(Attributes.CPUS, "*"); //$NON-NLS-1$
 509                 ResourcesEntry[] cpuEntries = new ResourcesEntry[cpuQuarks.size()];
 510                 for (int i = 0; i < cpuQuarks.size(); i++) {
 511                     int cpuQuark = cpuQuarks.get(i);
 512                     int cpu = Integer.parseInt(ssq.getAttributeName(cpuQuark));
 513                     ResourcesEntry entry = new ResourcesEntry(cpuQuark, ctfKernelTrace, Type.CPU, cpu);
 514                     groupEntry.addChild(entry);
 515                     cpuEntries[i] = entry;
 516                 }
 517                 List<Integer> irqQuarks = ssq.getQuarks(Attributes.RESOURCES, Attributes.IRQS, "*"); //$NON-NLS-1$
 518                 ResourcesEntry[] irqEntries = new ResourcesEntry[irqQuarks.size()];
 519                 for (int i = 0; i < irqQuarks.size(); i++) {
 520                     int irqQuark = irqQuarks.get(i);
 521                     int irq = Integer.parseInt(ssq.getAttributeName(irqQuark));
 522                     ResourcesEntry entry = new ResourcesEntry(irqQuark, ctfKernelTrace, Type.IRQ, irq);
 523                     groupEntry.addChild(entry);
 524                     irqEntries[i] = entry;
 525                 }
 526                 List<Integer> softIrqQuarks = ssq.getQuarks(Attributes.RESOURCES, Attributes.SOFT_IRQS, "*"); //$NON-NLS-1$
 527                 ResourcesEntry[] softIrqEntries = new ResourcesEntry[softIrqQuarks.size()];
 528                 for (int i = 0; i < softIrqQuarks.size(); i++) {
 529                     int softIrqQuark = softIrqQuarks.get(i);
 530                     int softIrq = Integer.parseInt(ssq.getAttributeName(softIrqQuark));
 531                     ResourcesEntry entry = new ResourcesEntry(softIrqQuark, ctfKernelTrace, Type.SOFT_IRQ, softIrq);
 532                     groupEntry.addChild(entry);
 533                     softIrqEntries[i] = entry;
 534                 }
 535             }
 536         }
 537         synchronized (fEntryListMap) {
 538             fEntryListMap.put(trace, (ArrayList<TraceEntry>) entryList.clone());
 539         }
 540         if (trace == fTrace) {
 541             refresh();
 542         }
 543         for (TraceEntry traceEntry : entryList) {
 544             if (monitor.isCanceled()) {
 545                 return;
 546             }
 547             LttngKernelTrace ctfKernelTrace = traceEntry.getTrace();
 548             ITmfStateSystem ssq = ctfKernelTrace.getStateSystems().get(LttngKernelTrace.STATE_ID);
 549             long startTime = ssq.getStartTime();
 550             long endTime = ssq.getCurrentEndTime() + 1;
 551             long resolution = (endTime - startTime) / fDisplayWidth;
 552             for (ResourcesEntry entry : traceEntry.getChildren()) {
 553                 List<ITimeEvent> eventList = getEventList(entry, startTime, endTime, resolution, false, monitor);
 554                 entry.setEventList(eventList);
 555                 redraw();
 556             }
 557         }
 558     }
 559
 560     private static List<ITimeEvent> getEventList(ResourcesEntry entry,
 561             long startTime, long endTime, long resolution, boolean includeNull,
 562             IProgressMonitor monitor) {
 563         ITmfStateSystem ssq = entry.getTrace().getStateSystems().get(LttngKernelTrace.STATE_ID);
 564         final long realStart = Math.max(startTime, ssq.getStartTime());
 565         final long realEnd = Math.min(endTime, ssq.getCurrentEndTime() + 1);
 566         if (realEnd <= realStart) {
 567             return null;
 568         }
 569         List<ITimeEvent> eventList = null;
 570         int quark = entry.getQuark();
 571         try {
 572             if (entry.getType().equals(Type.CPU)) {
 573                 int statusQuark = ssq.getQuarkRelative(quark, Attributes.STATUS);
 574                 List<ITmfStateInterval> statusIntervals = ssq.queryHistoryRange(statusQuark, realStart, realEnd - 1, resolution, monitor);
 575                 eventList = new ArrayList<ITimeEvent>(statusIntervals.size());
 576                 long lastEndTime = -1;
 577                 for (ITmfStateInterval statusInterval : statusIntervals) {
 578                     if (monitor.isCanceled()) {
 579                         return null;
 580                     }
 581                     int status = statusInterval.getStateValue().unboxInt();
 582                     long time = statusInterval.getStartTime();
 583                     long duration = statusInterval.getEndTime() - time + 1;
 584                     if (!statusInterval.getStateValue().isNull()) {
 585                         if (lastEndTime != time && lastEndTime != -1) {
 586                             eventList.add(new TimeEvent(entry, lastEndTime, time - lastEndTime));
 587                         }
 588                         eventList.add(new ResourcesEvent(entry, time, duration, status));
 589                         lastEndTime = time + duration;
 590                     } else {
 591                         if (includeNull) {
 592                             eventList.add(new ResourcesEvent(entry, time, duration));
 593                         }
 594                     }
 595                 }
 596             } else if (entry.getType().equals(Type.IRQ)) {
 597                 List<ITmfStateInterval> irqIntervals = ssq.queryHistoryRange(quark, realStart, realEnd - 1, resolution, monitor);
 598                 eventList = new ArrayList<ITimeEvent>(irqIntervals.size());
 599                 long lastEndTime = -1;
 600                 boolean lastIsNull = true;
 601                 for (ITmfStateInterval irqInterval : irqIntervals) {
 602                     if (monitor.isCanceled()) {
 603                         return null;
 604                     }
 605                     long time = irqInterval.getStartTime();
 606                     long duration = irqInterval.getEndTime() - time + 1;
 607                     if (!irqInterval.getStateValue().isNull()) {
 608                         int cpu = irqInterval.getStateValue().unboxInt();
 609                         eventList.add(new ResourcesEvent(entry, time, duration, cpu));
 610                         lastIsNull = false;
 611                     } else {
 612                         if (lastEndTime != time && lastEndTime != -1 && lastIsNull) {
 613                             eventList.add(new ResourcesEvent(entry, lastEndTime, time - lastEndTime, -1));
 614                         }
 615                         if (includeNull) {
 616                             eventList.add(new ResourcesEvent(entry, time, duration));
 617                         }
 618                         lastIsNull = true;
 619                     }
 620                     lastEndTime = time + duration;
 621                 }
 622             } else if (entry.getType().equals(Type.SOFT_IRQ)) {
 623                 List<ITmfStateInterval> softIrqIntervals = ssq.queryHistoryRange(quark, realStart, realEnd - 1, resolution, monitor);
 624                 eventList = new ArrayList<ITimeEvent>(softIrqIntervals.size());
 625                 long lastEndTime = -1;
 626                 boolean lastIsNull = true;
 627                 for (ITmfStateInterval softIrqInterval : softIrqIntervals) {
 628                     if (monitor.isCanceled()) {
 629                         return null;
 630                     }
 631                     long time = softIrqInterval.getStartTime();
 632                     long duration = softIrqInterval.getEndTime() - time + 1;
 633                     if (!softIrqInterval.getStateValue().isNull()) {
 634                         int cpu = softIrqInterval.getStateValue().unboxInt();
 635                         eventList.add(new ResourcesEvent(entry, time, duration, cpu));
 636                     } else {
 637                         if (lastEndTime != time && lastEndTime != -1 && lastIsNull) {
 638                             eventList.add(new ResourcesEvent(entry, lastEndTime, time - lastEndTime, -1));
 639                         }
 640                         if (includeNull) {
 641                             eventList.add(new ResourcesEvent(entry, time, duration));
 642                         }
 643                         lastIsNull = true;
 644                     }
 645                     lastEndTime = time + duration;
 646                 }
 647             }
 648         } catch (AttributeNotFoundException e) {
 649             e.printStackTrace();
 650         } catch (TimeRangeException e) {
 651             e.printStackTrace();
 652         } catch (StateValueTypeException e) {
 653             e.printStackTrace();
 654         } catch (StateSystemDisposedException e) {
 655             /* Ignored */
 656         }
 657         return eventList;
 658     }
 659
 660     private void refresh() {
 661         Display.getDefault().asyncExec(new Runnable() {
 662             @Override
 663             public void run() {
 664                 if (fTimeGraphViewer.getControl().isDisposed()) {
 665                     return;
 666                 }
 667                 ITimeGraphEntry[] entries = null;
 668                 synchronized (fEntryListMap) {
 669                     fEntryList = fEntryListMap.get(fTrace);
 670                     if (fEntryList == null) {
 671                         fEntryList = new ArrayList<TraceEntry>();
 672                     }
 673                     entries = fEntryList.toArray(new ITimeGraphEntry[0]);
 674                 }
 675                 if (entries != null) {
 676                     Arrays.sort(entries, new TraceEntryComparator());
 677                     fTimeGraphViewer.setInput(entries);
 678                     fTimeGraphViewer.setTimeBounds(fStartTime, fEndTime);
 679
 680                     long timestamp = fTrace == null ? 0 : fTraceManager.getCurrentTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 681                     long startTime = fTrace == null ? 0 : fTraceManager.getCurrentRange().getStartTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 682                     long endTime = fTrace == null ? 0 : fTraceManager.getCurrentRange().getEndTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 683                     startTime = Math.max(startTime, fStartTime);
 684                     endTime = Math.min(endTime, fEndTime);
 685                     fTimeGraphViewer.setSelectedTime(timestamp, false);
 686                     fTimeGraphViewer.setStartFinishTime(startTime, endTime);
 687
 688                     startZoomThread(startTime, endTime);
 689                 }
 690             }
 691         });
 692     }
 693
 694     private void redraw() {
 695         synchronized (fSyncObj) {
 696             if (fRedrawState == State.IDLE) {
 697                 fRedrawState = State.BUSY;
 698             } else {
 699                 fRedrawState = State.PENDING;
 700                 return;
 701             }
 702         }
 703         Display.getDefault().asyncExec(new Runnable() {
 704             @Override
 705             public void run() {
 706                 if (fTimeGraphViewer.getControl().isDisposed()) {
 707                     return;
 708                 }
 709                 fTimeGraphViewer.getControl().redraw();
 710                 fTimeGraphViewer.getControl().update();
 711                 synchronized (fSyncObj) {
 712                     if (fRedrawState == State.PENDING) {
 713                         fRedrawState = State.IDLE;
 714                         redraw();
 715                     } else {
 716                         fRedrawState = State.IDLE;
 717                     }
 718                 }
 719             }
 720         });
 721     }
 722
 723     private void startZoomThread(long startTime, long endTime) {
 724         if (fZoomThread != null) {
 725             fZoomThread.cancel();
 726         }
 727         fZoomThread = new ZoomThread(fEntryList, startTime, endTime);
 728         fZoomThread.start();
 729     }
 730
 731     private void makeActions() {
 732         fPreviousResourceAction = fTimeGraphViewer.getPreviousItemAction();
 733         fPreviousResourceAction.setText(Messages.ResourcesView_previousResourceActionNameText);
 734         fPreviousResourceAction.setToolTipText(Messages.ResourcesView_previousResourceActionToolTipText);
 735         fNextResourceAction = fTimeGraphViewer.getNextItemAction();
 736         fNextResourceAction.setText(Messages.ResourcesView_nextResourceActionNameText);
 737         fNextResourceAction.setToolTipText(Messages.ResourcesView_previousResourceActionToolTipText);
 738     }
 739
 740     private void contributeToActionBars() {
 741         IActionBars bars = getViewSite().getActionBars();
 742         fillLocalToolBar(bars.getToolBarManager());
 743     }
 744
 745     private void fillLocalToolBar(IToolBarManager manager) {
 746         manager.add(fTimeGraphViewer.getShowLegendAction());
 747         manager.add(new Separator());
 748         manager.add(fTimeGraphViewer.getResetScaleAction());
 749         manager.add(fTimeGraphViewer.getPreviousEventAction());
 750         manager.add(fTimeGraphViewer.getNextEventAction());
 751         manager.add(fPreviousResourceAction);
 752         manager.add(fNextResourceAction);
 753         manager.add(fTimeGraphViewer.getZoomInAction());
 754         manager.add(fTimeGraphViewer.getZoomOutAction());
 755         manager.add(new Separator());
 756     }
 757 }