org.eclipse.linuxtools.lttng2.kernel.ui/src/org/eclipse/linuxtools/internal/lttng2/kernel/ui/views/controlflow/ControlFlowView.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012 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.controlflow;
  14
  15 import java.util.ArrayList;
  16 import java.util.Arrays;
  17 import java.util.Collections;
  18 import java.util.Comparator;
  19 import java.util.List;
  20
  21 import org.eclipse.core.runtime.IProgressMonitor;
  22 import org.eclipse.core.runtime.NullProgressMonitor;
  23 import org.eclipse.jface.action.Action;
  24 import org.eclipse.jface.action.IToolBarManager;
  25 import org.eclipse.jface.action.Separator;
  26 import org.eclipse.jface.viewers.ILabelProviderListener;
  27 import org.eclipse.jface.viewers.ITableLabelProvider;
  28 import org.eclipse.jface.viewers.ITreeContentProvider;
  29 import org.eclipse.jface.viewers.Viewer;
  30 import org.eclipse.linuxtools.internal.lttng2.kernel.core.Attributes;
  31 import org.eclipse.linuxtools.internal.lttng2.kernel.ui.Messages;
  32 import org.eclipse.linuxtools.lttng2.kernel.core.trace.CtfKernelTrace;
  33 import org.eclipse.linuxtools.tmf.core.ctfadaptor.CtfTmfTimestamp;
  34 import org.eclipse.linuxtools.tmf.core.event.TmfTimeRange;
  35 import org.eclipse.linuxtools.tmf.core.event.TmfTimestamp;
  36 import org.eclipse.linuxtools.tmf.core.exceptions.AttributeNotFoundException;
  37 import org.eclipse.linuxtools.tmf.core.exceptions.StateValueTypeException;
  38 import org.eclipse.linuxtools.tmf.core.exceptions.TimeRangeException;
  39 import org.eclipse.linuxtools.tmf.core.interval.ITmfStateInterval;
  40 import org.eclipse.linuxtools.tmf.core.signal.TmfExperimentDisposedSignal;
  41 import org.eclipse.linuxtools.tmf.core.signal.TmfExperimentSelectedSignal;
  42 import org.eclipse.linuxtools.tmf.core.signal.TmfRangeSynchSignal;
  43 import org.eclipse.linuxtools.tmf.core.signal.TmfSignalHandler;
  44 import org.eclipse.linuxtools.tmf.core.signal.TmfStateSystemBuildCompleted;
  45 import org.eclipse.linuxtools.tmf.core.signal.TmfTimeSynchSignal;
  46 import org.eclipse.linuxtools.tmf.core.statesystem.ITmfStateSystem;
  47 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
  48 import org.eclipse.linuxtools.tmf.core.trace.TmfExperiment;
  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.ITimeGraphSelectionListener;
  52 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.ITimeGraphTimeListener;
  53 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.TimeGraphCombo;
  54 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.TimeGraphRangeUpdateEvent;
  55 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.TimeGraphSelectionEvent;
  56 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.TimeGraphTimeEvent;
  57 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ITimeEvent;
  58 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ITimeGraphEntry;
  59 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.TimeEvent;
  60 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets.Utils;
  61 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets.Utils.Resolution;
  62 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets.Utils.TimeFormat;
  63 import org.eclipse.swt.SWT;
  64 import org.eclipse.swt.graphics.Image;
  65 import org.eclipse.swt.widgets.Composite;
  66 import org.eclipse.swt.widgets.Display;
  67 import org.eclipse.swt.widgets.TreeColumn;
  68 import org.eclipse.ui.IActionBars;
  69
  70 /**
  71  * The Control Flow view main object
  72  *
  73  */
  74 public class ControlFlowView extends TmfView {
  75
  76     // ------------------------------------------------------------------------
  77     // Constants
  78     // ------------------------------------------------------------------------
  79
  80     /**
  81      * View ID.
  82      */
  83     public static final String ID = "org.eclipse.linuxtools.lttng2.kernel.ui.views.controlflow"; //$NON-NLS-1$
  84
  85     /**
  86      * Initial time range
  87      */
  88     private static final long INITIAL_WINDOW_OFFSET = (1L * 100  * 1000 * 1000); // .1sec
  89
  90     private static final String PROCESS_COLUMN    = Messages.ControlFlowView_processColumn;
  91     private static final String TID_COLUMN        = Messages.ControlFlowView_tidColumn;
  92     private static final String PTID_COLUMN       = Messages.ControlFlowView_ptidColumn;
  93     private static final String BIRTH_TIME_COLUMN = Messages.ControlFlowView_birthTimeColumn;
  94     private static final String TRACE_COLUMN      = Messages.ControlFlowView_traceColumn;
  95
  96     private final String[] COLUMN_NAMES = new String[] {
  97             PROCESS_COLUMN,
  98             TID_COLUMN,
  99             PTID_COLUMN,
 100             BIRTH_TIME_COLUMN,
 101             TRACE_COLUMN
 102     };
 103
 104     /**
 105      * Redraw state enum
 106      */
 107     private enum State { IDLE, BUSY, PENDING }
 108
 109     // ------------------------------------------------------------------------
 110     // Fields
 111     // ------------------------------------------------------------------------
 112
 113     // The timegraph combo
 114     private TimeGraphCombo fTimeGraphCombo;
 115
 116     // The selected experiment
 117     private TmfExperiment fSelectedExperiment;
 118
 119     // The timegraph entry list
 120     private ArrayList<ControlFlowEntry> fEntryList;
 121
 122     // The time graph entry list synchronization object
 123     final private Object fEntryListSyncObj = new Object();
 124
 125     // The start time
 126     private long fStartTime;
 127
 128     // The end time
 129     private long fEndTime;
 130
 131     // The display width
 132     private final int fDisplayWidth;
 133
 134     // The zoom thread
 135     private ZoomThread fZoomThread;
 136
 137     // The next resource action
 138     private Action fNextResourceAction;
 139
 140     // The previous resource action
 141     private Action fPreviousResourceAction;
 142
 143     // A comparator class
 144     private final ControlFlowEntryComparator fControlFlowEntryComparator = new ControlFlowEntryComparator();
 145
 146     // The redraw state used to prevent unnecessary queuing of display runnables
 147     private State fRedrawState = State.IDLE;
 148
 149     // The redraw synchronization object
 150     final private Object fSyncObj = new Object();
 151
 152     // ------------------------------------------------------------------------
 153     // Classes
 154     // ------------------------------------------------------------------------
 155
 156     private class TreeContentProvider implements ITreeContentProvider {
 157
 158         @Override
 159         public void dispose() {
 160         }
 161
 162         @Override
 163         public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 164         }
 165
 166         @Override
 167         public Object[] getElements(Object inputElement) {
 168             return (ITimeGraphEntry[]) inputElement;
 169         }
 170
 171         @Override
 172         public Object[] getChildren(Object parentElement) {
 173             ITimeGraphEntry entry = (ITimeGraphEntry) parentElement;
 174             List<? extends ITimeGraphEntry> children = entry.getChildren();
 175             return children.toArray(new ITimeGraphEntry[children.size()]);
 176         }
 177
 178         @Override
 179         public Object getParent(Object element) {
 180             ITimeGraphEntry entry = (ITimeGraphEntry) element;
 181             return entry.getParent();
 182         }
 183
 184         @Override
 185         public boolean hasChildren(Object element) {
 186             ITimeGraphEntry entry = (ITimeGraphEntry) element;
 187             return entry.hasChildren();
 188         }
 189
 190     }
 191
 192     private class TreeLabelProvider implements ITableLabelProvider {
 193
 194         @Override
 195         public void addListener(ILabelProviderListener listener) {
 196         }
 197
 198         @Override
 199         public void dispose() {
 200         }
 201
 202         @Override
 203         public boolean isLabelProperty(Object element, String property) {
 204             return false;
 205         }
 206
 207         @Override
 208         public void removeListener(ILabelProviderListener listener) {
 209         }
 210
 211         @Override
 212         public Image getColumnImage(Object element, int columnIndex) {
 213             return null;
 214         }
 215
 216         @Override
 217         public String getColumnText(Object element, int columnIndex) {
 218             ControlFlowEntry entry = (ControlFlowEntry) element;
 219             if (columnIndex == 0) {
 220                 return entry.getName();
 221             } else if (columnIndex == 1) {
 222                 return Integer.toString(entry.getThreadId());
 223             } else if (columnIndex == 2) {
 224                 if (entry.getParentThreadId() > 0) {
 225                     return Integer.toString(entry.getParentThreadId());
 226                 }
 227             } else if (columnIndex == 3) {
 228                 return Utils.formatTime(entry.getBirthTime(), TimeFormat.ABSOLUTE, Resolution.NANOSEC);
 229             } else if (columnIndex == 4) {
 230                 return entry.getTrace().getName();
 231             }
 232             return ""; //$NON-NLS-1$
 233         }
 234
 235     }
 236
 237     private static class ControlFlowEntryComparator implements Comparator<ITimeGraphEntry> {
 238
 239         @Override
 240         public int compare(ITimeGraphEntry o1, ITimeGraphEntry o2) {
 241             int result = 0;
 242
 243             if ((o1 instanceof ControlFlowEntry) && (o2 instanceof ControlFlowEntry)) {
 244                 ControlFlowEntry entry1 = (ControlFlowEntry) o1;
 245                 ControlFlowEntry entry2 = (ControlFlowEntry) o2;
 246                 result = entry1.getTrace().getStartTime().compareTo(entry2.getTrace().getStartTime());
 247                 if (result == 0) {
 248                     result = entry1.getTrace().getName().compareTo(entry2.getTrace().getName());
 249                 }
 250                 if (result == 0) {
 251                     result = entry1.getThreadId() < entry2.getThreadId() ? -1 : entry1.getThreadId() > entry2.getThreadId() ? 1 : 0;
 252                 }
 253             }
 254
 255             if (result == 0) {
 256                 result = o1.getStartTime() < o2.getStartTime() ? -1 : o1.getStartTime() > o2.getStartTime() ? 1 : 0;
 257             }
 258
 259             return result;
 260         }
 261     }
 262
 263
 264     private class ZoomThread extends Thread {
 265         private final long fZoomStartTime;
 266         private final long fZoomEndTime;
 267         private final long fResolution;
 268         private final IProgressMonitor fMonitor;
 269
 270         public ZoomThread(long startTime, long endTime) {
 271             super("ControlFlowView zoom"); //$NON-NLS-1$
 272             fZoomStartTime = startTime;
 273             fZoomEndTime = endTime;
 274             fResolution = Math.max(1, (fZoomEndTime - fZoomStartTime) / fDisplayWidth);
 275             fMonitor = new NullProgressMonitor();
 276         }
 277
 278         @Override
 279         public void run() {
 280             ArrayList<ControlFlowEntry> entryList = null;
 281             synchronized (fEntryListSyncObj) {
 282                 entryList = (ArrayList<ControlFlowEntry>) fEntryList.clone();
 283             }
 284             if (entryList == null) {
 285                 return;
 286             }
 287             for (ControlFlowEntry entry : entryList) {
 288                 if (fMonitor.isCanceled()) {
 289                     break;
 290                 }
 291                 zoom(entry, fMonitor);
 292             }
 293         }
 294
 295         private void zoom(ControlFlowEntry entry, IProgressMonitor monitor) {
 296             if (fZoomStartTime <= fStartTime && fZoomEndTime >= fEndTime) {
 297                 entry.setZoomedEventList(null);
 298             } else {
 299                 List<ITimeEvent> zoomedEventList = getEventList(entry, fZoomStartTime, fZoomEndTime, fResolution, monitor);
 300                 if (zoomedEventList != null) {
 301                     entry.setZoomedEventList(zoomedEventList);
 302                 }
 303             }
 304             redraw();
 305             for (ControlFlowEntry child : entry.getChildren()) {
 306                 if (fMonitor.isCanceled()) {
 307                     return;
 308                 }
 309                 zoom(child, monitor);
 310             }
 311         }
 312
 313         public void cancel() {
 314             fMonitor.setCanceled(true);
 315         }
 316     }
 317
 318     // ------------------------------------------------------------------------
 319     // Constructors
 320     // ------------------------------------------------------------------------
 321
 322     /**
 323      * Constructor
 324      */
 325     public ControlFlowView() {
 326         super(ID);
 327         fDisplayWidth = Display.getDefault().getBounds().width;
 328     }
 329
 330     // ------------------------------------------------------------------------
 331     // ViewPart
 332     // ------------------------------------------------------------------------
 333
 334     /* (non-Javadoc)
 335      * @see org.eclipse.linuxtools.tmf.ui.views.TmfView#createPartControl(org.eclipse.swt.widgets.Composite)
 336      */
 337     @Override
 338     public void createPartControl(Composite parent) {
 339         fTimeGraphCombo = new TimeGraphCombo(parent, SWT.NONE);
 340
 341         fTimeGraphCombo.setTreeContentProvider(new TreeContentProvider());
 342
 343         fTimeGraphCombo.setTreeLabelProvider(new TreeLabelProvider());
 344
 345         fTimeGraphCombo.setTimeGraphProvider(new ControlFlowPresentationProvider());
 346
 347         fTimeGraphCombo.setTreeColumns(COLUMN_NAMES);
 348
 349         fTimeGraphCombo.getTimeGraphViewer().addRangeListener(new ITimeGraphRangeListener() {
 350             @Override
 351             public void timeRangeUpdated(TimeGraphRangeUpdateEvent event) {
 352                 final long startTime = event.getStartTime();
 353                 final long endTime = event.getEndTime();
 354                 TmfTimeRange range = new TmfTimeRange(new CtfTmfTimestamp(startTime), new CtfTmfTimestamp(endTime));
 355                 TmfTimestamp time = new CtfTmfTimestamp(fTimeGraphCombo.getTimeGraphViewer().getSelectedTime());
 356                 broadcast(new TmfRangeSynchSignal(ControlFlowView.this, range, time));
 357                 if (fZoomThread != null) {
 358                     fZoomThread.cancel();
 359                 }
 360                 startZoomThread(startTime, endTime);
 361             }
 362         });
 363
 364         fTimeGraphCombo.getTimeGraphViewer().addTimeListener(new ITimeGraphTimeListener() {
 365             @Override
 366             public void timeSelected(TimeGraphTimeEvent event) {
 367                 long time = event.getTime();
 368                 broadcast(new TmfTimeSynchSignal(ControlFlowView.this, new CtfTmfTimestamp(time)));
 369             }
 370         });
 371
 372         fTimeGraphCombo.addSelectionListener(new ITimeGraphSelectionListener() {
 373             @Override
 374             public void selectionChanged(TimeGraphSelectionEvent event) {
 375                 //ITimeGraphEntry selection = event.getSelection();
 376             }
 377         });
 378
 379         fTimeGraphCombo.getTimeGraphViewer().setTimeCalendarFormat(true);
 380
 381         final Thread thread = new Thread("ControlFlowView build") { //$NON-NLS-1$
 382             @Override
 383             public void run() {
 384                 if (TmfExperiment.getCurrentExperiment() != null) {
 385                     selectExperiment(TmfExperiment.getCurrentExperiment());
 386                 }
 387             }
 388         };
 389         thread.start();
 390
 391         // View Action Handling
 392         makeActions();
 393         contributeToActionBars();
 394     }
 395
 396     /* (non-Javadoc)
 397      * @see org.eclipse.ui.part.WorkbenchPart#setFocus()
 398      */
 399     @Override
 400     public void setFocus() {
 401         fTimeGraphCombo.setFocus();
 402     }
 403
 404     // ------------------------------------------------------------------------
 405     // Signal handlers
 406     // ------------------------------------------------------------------------
 407
 408     /**
 409      * Handler for the experiment selected signal
 410      *
 411      * @param signal
 412      *            The signal that's received
 413      */
 414     @TmfSignalHandler
 415     public void experimentSelected(final TmfExperimentSelectedSignal signal) {
 416         if (signal.getExperiment().equals(fSelectedExperiment)) {
 417             return;
 418         }
 419
 420         final Thread thread = new Thread("ControlFlowView build") { //$NON-NLS-1$
 421             @Override
 422             public void run() {
 423                 selectExperiment(signal.getExperiment());
 424             }
 425         };
 426         thread.start();
 427     }
 428
 429     /**
 430      * Experiment is disposed: clear the data structures and the view
 431      *
 432      * @param signal the signal received
 433      */
 434     @TmfSignalHandler
 435     public void experimentDisposed(final TmfExperimentDisposedSignal signal) {
 436         if (signal.getExperiment().equals(fSelectedExperiment)) {
 437             fSelectedExperiment = null;
 438             fStartTime = 0;
 439             fEndTime = 0;
 440             fZoomThread.cancel();
 441             synchronized(fEntryListSyncObj) {
 442                 fEntryList.clear();
 443             }
 444             refresh(INITIAL_WINDOW_OFFSET);
 445         }
 446     }
 447
 448     /**
 449      * Handler for the synch signal
 450      *
 451      * @param signal
 452      *            The signal that's received
 453      */
 454     @TmfSignalHandler
 455     public void synchToTime(final TmfTimeSynchSignal signal) {
 456         if (signal.getSource() == this || fSelectedExperiment == null || fSelectedExperiment.getTraces() == null) {
 457             return;
 458         }
 459         final long time = signal.getCurrentTime().normalize(0, -9).getValue();
 460
 461         int thread = -1;
 462         for (ITmfTrace trace : fSelectedExperiment.getTraces()) {
 463             if (thread > 0) {
 464                 break;
 465             }
 466             if (trace instanceof CtfKernelTrace) {
 467                 CtfKernelTrace ctfKernelTrace = (CtfKernelTrace) trace;
 468                 ITmfStateSystem ssq = ctfKernelTrace.getStateSystem();
 469                 if (time >= ssq.getStartTime() && time <= ssq.getCurrentEndTime()) {
 470                     List<Integer> currentThreadQuarks = ssq.getQuarks(Attributes.CPUS, "*", Attributes.CURRENT_THREAD);  //$NON-NLS-1$
 471                     for (int currentThreadQuark : currentThreadQuarks) {
 472                         try {
 473                             ITmfStateInterval currentThreadInterval = ssq.querySingleState(time, currentThreadQuark);
 474                             int currentThread = currentThreadInterval.getStateValue().unboxInt();
 475                             if (currentThread > 0) {
 476                                 int statusQuark = ssq.getQuarkAbsolute(Attributes.THREADS, Integer.toString(currentThread), Attributes.STATUS);
 477                                 ITmfStateInterval statusInterval = ssq.querySingleState(time, statusQuark);
 478                                 if (statusInterval.getStartTime() == time) {
 479                                     thread = currentThread;
 480                                     break;
 481                                 }
 482                             }
 483                         } catch (AttributeNotFoundException e) {
 484                             e.printStackTrace();
 485                         } catch (TimeRangeException e) {
 486                             e.printStackTrace();
 487                         } catch (StateValueTypeException e) {
 488                             e.printStackTrace();
 489                         }
 490                     }
 491                 }
 492             }
 493         }
 494         final int selectedThread = thread;
 495
 496         Display.getDefault().asyncExec(new Runnable() {
 497             @Override
 498             public void run() {
 499                 if (fTimeGraphCombo.isDisposed()) {
 500                     return;
 501                 }
 502                 fTimeGraphCombo.getTimeGraphViewer().setSelectedTime(time, true);
 503                 startZoomThread(fTimeGraphCombo.getTimeGraphViewer().getTime0(), fTimeGraphCombo.getTimeGraphViewer().getTime1());
 504
 505                 if (selectedThread > 0) {
 506                     for (Object element : fTimeGraphCombo.getTimeGraphViewer().getExpandedElements()) {
 507                         if (element instanceof ControlFlowEntry) {
 508                             ControlFlowEntry entry = (ControlFlowEntry) element;
 509                             if (entry.getThreadId() == selectedThread) {
 510                                 fTimeGraphCombo.setSelection(entry);
 511                                 break;
 512                             }
 513                         }
 514                     }
 515                 }
 516             }
 517         });
 518     }
 519
 520     /**
 521      * Handler for the range sync signal
 522      *
 523      * @param signal
 524      *            The signal that's received
 525      */
 526     @TmfSignalHandler
 527     public void synchToRange(final TmfRangeSynchSignal signal) {
 528         if (signal.getSource() == this || fSelectedExperiment == null) {
 529             return;
 530         }
 531         final long startTime = signal.getCurrentRange().getStartTime().normalize(0, -9).getValue();
 532         final long endTime = signal.getCurrentRange().getEndTime().normalize(0, -9).getValue();
 533         final long time = signal.getCurrentTime().normalize(0, -9).getValue();
 534         Display.getDefault().asyncExec(new Runnable() {
 535             @Override
 536             public void run() {
 537                 if (fTimeGraphCombo.isDisposed()) {
 538                     return;
 539                 }
 540                 fTimeGraphCombo.getTimeGraphViewer().setStartFinishTime(startTime, endTime);
 541                 fTimeGraphCombo.getTimeGraphViewer().setSelectedTime(time, false);
 542                 startZoomThread(startTime, endTime);
 543             }
 544         });
 545     }
 546
 547     /**
 548      * Handler for the state system build completed signal
 549      *
 550      * @param signal
 551      *            The signal that's received
 552      */
 553     @TmfSignalHandler
 554     public void stateSystemBuildCompleted (final TmfStateSystemBuildCompleted signal) {
 555         final TmfExperiment selectedExperiment = fSelectedExperiment;
 556         if (selectedExperiment == null || selectedExperiment.getTraces() == null) {
 557             return;
 558         }
 559         for (ITmfTrace trace : selectedExperiment.getTraces()) {
 560             if (trace == signal.getTrace() && trace instanceof CtfKernelTrace) {
 561                 final Thread thread = new Thread("ControlFlowView build") { //$NON-NLS-1$
 562                     @Override
 563                     public void run() {
 564                         // rebuild the model
 565                         selectExperiment(selectedExperiment);
 566                     }
 567                 };
 568                 thread.start();
 569             }
 570         }
 571     }
 572
 573     // ------------------------------------------------------------------------
 574     // Internal
 575     // ------------------------------------------------------------------------
 576
 577     private void selectExperiment(TmfExperiment experiment) {
 578         fStartTime = Long.MAX_VALUE;
 579         fEndTime = Long.MIN_VALUE;
 580         fSelectedExperiment = experiment;
 581         ArrayList<ControlFlowEntry> rootList = new ArrayList<ControlFlowEntry>();
 582         for (ITmfTrace trace : experiment.getTraces()) {
 583             if (trace instanceof CtfKernelTrace) {
 584                 ArrayList<ControlFlowEntry> entryList = new ArrayList<ControlFlowEntry>();
 585                 CtfKernelTrace ctfKernelTrace = (CtfKernelTrace) trace;
 586                 ITmfStateSystem ssq = ctfKernelTrace.getStateSystem();
 587                 long start = ssq.getStartTime();
 588                 long end = ssq.getCurrentEndTime() + 1;
 589                 fStartTime = Math.min(fStartTime, start);
 590                 fEndTime = Math.max(fEndTime, end);
 591                 List<Integer> threadQuarks = ssq.getQuarks(Attributes.THREADS, "*"); //$NON-NLS-1$
 592                 for (int threadQuark : threadQuarks) {
 593                     String threadName = ssq.getAttributeName(threadQuark);
 594                     int threadId = -1;
 595                     try {
 596                         threadId = Integer.parseInt(threadName);
 597                     } catch (NumberFormatException e1) {
 598                         continue;
 599                     }
 600                     if (threadId == 0) { // ignore the swapper thread
 601                         continue;
 602                     }
 603                     int execNameQuark = -1;
 604                     try {
 605                         try {
 606                             execNameQuark = ssq.getQuarkRelative(threadQuark, Attributes.EXEC_NAME);
 607                         } catch (AttributeNotFoundException e) {
 608                             continue;
 609                         }
 610                         int ppidQuark = ssq.getQuarkRelative(threadQuark, Attributes.PPID);
 611                         List<ITmfStateInterval> execNameIntervals = ssq.queryHistoryRange(execNameQuark, start, end - 1);
 612                         long birthTime = -1;
 613                         for (ITmfStateInterval execNameInterval : execNameIntervals) {
 614                             if (!execNameInterval.getStateValue().isNull() && execNameInterval.getStateValue().getType() == 1) {
 615                                 String execName = execNameInterval.getStateValue().unboxStr();
 616                                 long startTime = execNameInterval.getStartTime();
 617                                 long endTime = execNameInterval.getEndTime() + 1;
 618                                 if (birthTime == -1) {
 619                                     birthTime = startTime;
 620                                 }
 621                                 int ppid = -1;
 622                                 if (ppidQuark != -1) {
 623                                     ITmfStateInterval ppidInterval = ssq.querySingleState(startTime, ppidQuark);
 624                                     ppid = ppidInterval.getStateValue().unboxInt();
 625                                 }
 626                                 ControlFlowEntry entry = new ControlFlowEntry(threadQuark, ctfKernelTrace, execName, threadId, ppid, birthTime, startTime, endTime);
 627                                 entryList.add(entry);
 628                                 entry.addEvent(new TimeEvent(entry, startTime, endTime - startTime));
 629                             } else {
 630                                 birthTime = -1;
 631                             }
 632                         }
 633                     } catch (AttributeNotFoundException e) {
 634                         e.printStackTrace();
 635                     } catch (TimeRangeException e) {
 636                         e.printStackTrace();
 637                     } catch (StateValueTypeException e) {
 638                         e.printStackTrace();
 639                     }
 640                 }
 641                 buildTree(entryList, rootList);
 642             }
 643             Collections.sort(rootList, fControlFlowEntryComparator);
 644             synchronized (fEntryListSyncObj) {
 645                 fEntryList = (ArrayList<ControlFlowEntry>) rootList.clone();
 646             }
 647             refresh(INITIAL_WINDOW_OFFSET);
 648         }
 649         for (ControlFlowEntry entry : rootList) {
 650             buildStatusEvents(entry);
 651         }
 652     }
 653
 654     private static void buildTree(ArrayList<ControlFlowEntry> entryList,
 655             ArrayList<ControlFlowEntry> rootList) {
 656         for (ControlFlowEntry entry : entryList) {
 657             boolean root = true;
 658             if (entry.getParentThreadId() > 0) {
 659                 for (ControlFlowEntry parent : entryList) {
 660                     if (parent.getThreadId() == entry.getParentThreadId() &&
 661                             entry.getStartTime() >= parent.getStartTime() &&
 662                             entry.getStartTime() <= parent.getEndTime()) {
 663                         parent.addChild(entry);
 664                         root = false;
 665                         break;
 666                     }
 667                 }
 668             }
 669             if (root) {
 670                 rootList.add(entry);
 671             }
 672         }
 673     }
 674
 675     private void buildStatusEvents(ControlFlowEntry entry) {
 676         ITmfStateSystem ssq = entry.getTrace().getStateSystem();
 677         long start = ssq.getStartTime();
 678         long end = ssq.getCurrentEndTime() + 1;
 679         long resolution = Math.max(1, (end - start) / fDisplayWidth);
 680         List<ITimeEvent> eventList = getEventList(entry, entry.getStartTime(), entry.getEndTime(), resolution, new NullProgressMonitor());
 681         entry.setEventList(eventList);
 682         redraw();
 683         for (ITimeGraphEntry child : entry.getChildren()) {
 684             buildStatusEvents((ControlFlowEntry) child);
 685         }
 686     }
 687
 688     private static List<ITimeEvent> getEventList(ControlFlowEntry entry,
 689             long startTime, long endTime, long resolution,
 690             IProgressMonitor monitor) {
 691         startTime = Math.max(startTime, entry.getStartTime());
 692         endTime = Math.min(endTime, entry.getEndTime());
 693         if (endTime <= startTime) {
 694             return null;
 695         }
 696         ITmfStateSystem ssq = entry.getTrace().getStateSystem();
 697         List<ITimeEvent> eventList = null;
 698         try {
 699             int statusQuark = ssq.getQuarkRelative(entry.getThreadQuark(), Attributes.STATUS);
 700             List<ITmfStateInterval> statusIntervals = ssq.queryHistoryRange(statusQuark, startTime, endTime - 1, resolution, monitor);
 701             eventList = new ArrayList<ITimeEvent>(statusIntervals.size());
 702             long lastEndTime = -1;
 703             for (ITmfStateInterval statusInterval : statusIntervals) {
 704                 if (monitor.isCanceled()) {
 705                     return null;
 706                 }
 707                 long time = statusInterval.getStartTime();
 708                 long duration = statusInterval.getEndTime() - time + 1;
 709                 int status = -1;
 710                 try {
 711                     status = statusInterval.getStateValue().unboxInt();
 712                 } catch (StateValueTypeException e) {
 713                     e.printStackTrace();
 714                 }
 715                 if (lastEndTime != time && lastEndTime != -1) {
 716                     eventList.add(new ControlFlowEvent(entry, lastEndTime, time - lastEndTime, 0));
 717                 }
 718                 eventList.add(new ControlFlowEvent(entry, time, duration, status));
 719                 lastEndTime = time + duration;
 720             }
 721         } catch (AttributeNotFoundException e) {
 722             e.printStackTrace();
 723         } catch (TimeRangeException e) {
 724             e.printStackTrace();
 725         }
 726         return eventList;
 727     }
 728
 729     private void refresh(final long windowRange) {
 730         Display.getDefault().asyncExec(new Runnable() {
 731             @Override
 732             public void run() {
 733                 if (fTimeGraphCombo.isDisposed()) {
 734                     return;
 735                 }
 736                 ITimeGraphEntry[] entries = null;
 737                 synchronized (fEntryListSyncObj) {
 738                     entries = fEntryList.toArray(new ITimeGraphEntry[0]);
 739                 }
 740                 Arrays.sort(entries, fControlFlowEntryComparator);
 741                 fTimeGraphCombo.setInput(entries);
 742                 fTimeGraphCombo.getTimeGraphViewer().setTimeBounds(fStartTime, fEndTime);
 743
 744                 long endTime = fStartTime + windowRange;
 745
 746                 if (fEndTime < endTime) {
 747                     endTime = fEndTime;
 748                 }
 749                 fTimeGraphCombo.getTimeGraphViewer().setStartFinishTime(fStartTime, endTime);
 750                 for (TreeColumn column : fTimeGraphCombo.getTreeViewer().getTree().getColumns()) {
 751                     column.pack();
 752                 }
 753
 754                 startZoomThread(fStartTime, endTime);
 755             }
 756         });
 757     }
 758
 759     private void redraw() {
 760         synchronized (fSyncObj) {
 761             if (fRedrawState == State.IDLE) {
 762                 fRedrawState = State.BUSY;
 763             } else {
 764                 fRedrawState = State.PENDING;
 765                 return;
 766             }
 767         }
 768         Display.getDefault().asyncExec(new Runnable() {
 769             @Override
 770             public void run() {
 771                 if (fTimeGraphCombo.isDisposed()) {
 772                     return;
 773                 }
 774                 fTimeGraphCombo.redraw();
 775                 fTimeGraphCombo.update();
 776                 synchronized (fSyncObj) {
 777                     if (fRedrawState == State.PENDING) {
 778                         fRedrawState = State.IDLE;
 779                         redraw();
 780                     } else {
 781                         fRedrawState = State.IDLE;
 782                     }
 783                 }
 784             }
 785         });
 786     }
 787
 788     private void startZoomThread(long startTime, long endTime) {
 789         if (fZoomThread != null) {
 790             fZoomThread.cancel();
 791         }
 792         fZoomThread = new ZoomThread(startTime, endTime);
 793         fZoomThread.start();
 794     }
 795
 796     private void makeActions() {
 797         fPreviousResourceAction = fTimeGraphCombo.getTimeGraphViewer().getPreviousItemAction();
 798         fPreviousResourceAction.setText(Messages.ControlFlowView_previousProcessActionNameText);
 799         fPreviousResourceAction.setToolTipText(Messages.ControlFlowView_previousProcessActionToolTipText);
 800         fNextResourceAction = fTimeGraphCombo.getTimeGraphViewer().getNextItemAction();
 801         fNextResourceAction.setText(Messages.ControlFlowView_nextProcessActionNameText);
 802         fNextResourceAction.setToolTipText(Messages.ControlFlowView_nextProcessActionToolTipText);
 803     }
 804
 805     private void contributeToActionBars() {
 806         IActionBars bars = getViewSite().getActionBars();
 807         fillLocalToolBar(bars.getToolBarManager());
 808     }
 809
 810     private void fillLocalToolBar(IToolBarManager manager) {
 811         manager.add(fTimeGraphCombo.getTimeGraphViewer().getShowLegendAction());
 812         manager.add(new Separator());
 813         manager.add(fTimeGraphCombo.getTimeGraphViewer().getResetScaleAction());
 814         manager.add(fTimeGraphCombo.getTimeGraphViewer().getPreviousEventAction());
 815         manager.add(fTimeGraphCombo.getTimeGraphViewer().getNextEventAction());
 816         manager.add(fPreviousResourceAction);
 817         manager.add(fNextResourceAction);
 818         manager.add(fTimeGraphCombo.getTimeGraphViewer().getZoomInAction());
 819         manager.add(fTimeGraphCombo.getTimeGraphViewer().getZoomOutAction());
 820         manager.add(new Separator());
 821     }
 822 }