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.HashMap;
  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.jface.viewers.ILabelProviderListener;
  28 import org.eclipse.jface.viewers.ITableLabelProvider;
  29 import org.eclipse.jface.viewers.ITreeContentProvider;
  30 import org.eclipse.jface.viewers.Viewer;
  31 import org.eclipse.linuxtools.internal.lttng2.kernel.core.Attributes;
  32 import org.eclipse.linuxtools.internal.lttng2.kernel.ui.Messages;
  33 import org.eclipse.linuxtools.lttng2.kernel.core.trace.CtfKernelTrace;
  34 import org.eclipse.linuxtools.tmf.core.ctfadaptor.CtfTmfTimestamp;
  35 import org.eclipse.linuxtools.tmf.core.event.ITmfTimestamp;
  36 import org.eclipse.linuxtools.tmf.core.event.TmfTimeRange;
  37 import org.eclipse.linuxtools.tmf.core.event.TmfTimestamp;
  38 import org.eclipse.linuxtools.tmf.core.exceptions.AttributeNotFoundException;
  39 import org.eclipse.linuxtools.tmf.core.exceptions.StateSystemDisposedException;
  40 import org.eclipse.linuxtools.tmf.core.exceptions.StateValueTypeException;
  41 import org.eclipse.linuxtools.tmf.core.exceptions.TimeRangeException;
  42 import org.eclipse.linuxtools.tmf.core.interval.ITmfStateInterval;
  43 import org.eclipse.linuxtools.tmf.core.signal.TmfRangeSynchSignal;
  44 import org.eclipse.linuxtools.tmf.core.signal.TmfSignalHandler;
  45 import org.eclipse.linuxtools.tmf.core.signal.TmfTimeSynchSignal;
  46 import org.eclipse.linuxtools.tmf.core.signal.TmfTraceClosedSignal;
  47 import org.eclipse.linuxtools.tmf.core.signal.TmfTraceSelectedSignal;
  48 import org.eclipse.linuxtools.tmf.core.statesystem.ITmfStateSystem;
  49 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
  50 import org.eclipse.linuxtools.tmf.core.trace.TmfExperiment;
  51 import org.eclipse.linuxtools.tmf.ui.editors.ITmfTraceEditor;
  52 import org.eclipse.linuxtools.tmf.ui.views.TmfView;
  53 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.ITimeGraphRangeListener;
  54 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.ITimeGraphSelectionListener;
  55 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.ITimeGraphTimeListener;
  56 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.TimeGraphCombo;
  57 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.TimeGraphRangeUpdateEvent;
  58 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.TimeGraphSelectionEvent;
  59 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.TimeGraphTimeEvent;
  60 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ITimeEvent;
  61 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ITimeGraphEntry;
  62 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.TimeEvent;
  63 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets.Utils;
  64 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets.Utils.Resolution;
  65 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets.Utils.TimeFormat;
  66 import org.eclipse.swt.SWT;
  67 import org.eclipse.swt.graphics.Image;
  68 import org.eclipse.swt.widgets.Composite;
  69 import org.eclipse.swt.widgets.Display;
  70 import org.eclipse.swt.widgets.TreeColumn;
  71 import org.eclipse.ui.IActionBars;
  72 import org.eclipse.ui.IEditorPart;
  73
  74 /**
  75  * The Control Flow view main object
  76  *
  77  */
  78 public class ControlFlowView extends TmfView {
  79
  80     // ------------------------------------------------------------------------
  81     // Constants
  82     // ------------------------------------------------------------------------
  83
  84     /**
  85      * View ID.
  86      */
  87     public static final String ID = "org.eclipse.linuxtools.lttng2.kernel.ui.views.controlflow"; //$NON-NLS-1$
  88
  89     private static final String PROCESS_COLUMN    = Messages.ControlFlowView_processColumn;
  90     private static final String TID_COLUMN        = Messages.ControlFlowView_tidColumn;
  91     private static final String PTID_COLUMN       = Messages.ControlFlowView_ptidColumn;
  92     private static final String BIRTH_TIME_COLUMN = Messages.ControlFlowView_birthTimeColumn;
  93     private static final String TRACE_COLUMN      = Messages.ControlFlowView_traceColumn;
  94
  95     private final String[] COLUMN_NAMES = new String[] {
  96             PROCESS_COLUMN,
  97             TID_COLUMN,
  98             PTID_COLUMN,
  99             BIRTH_TIME_COLUMN,
 100             TRACE_COLUMN
 101     };
 102
 103     private final String[] FILTER_COLUMN_NAMES = new String[] {
 104             PROCESS_COLUMN,
 105             TID_COLUMN
 106     };
 107
 108     /**
 109      * Redraw state enum
 110      */
 111     private enum State { IDLE, BUSY, PENDING }
 112
 113     // ------------------------------------------------------------------------
 114     // Fields
 115     // ------------------------------------------------------------------------
 116
 117     // The timegraph combo
 118     private TimeGraphCombo fTimeGraphCombo;
 119
 120     // The selected trace
 121     private ITmfTrace fTrace;
 122
 123     // The timegraph entry list
 124     private ArrayList<ControlFlowEntry> fEntryList;
 125
 126     // The trace to entry list hash map
 127     final private HashMap<ITmfTrace, ArrayList<ControlFlowEntry>> fEntryListMap = new HashMap<ITmfTrace, ArrayList<ControlFlowEntry>>();
 128
 129     // The trace to build thread hash map
 130     final private HashMap<ITmfTrace, BuildThread> fBuildThreadMap = new HashMap<ITmfTrace, BuildThread>();
 131
 132     // The start time
 133     private long fStartTime;
 134
 135     // The end time
 136     private long fEndTime;
 137
 138     // The display width
 139     private final int fDisplayWidth;
 140
 141     // The zoom thread
 142     private ZoomThread fZoomThread;
 143
 144     // The next resource action
 145     private Action fNextResourceAction;
 146
 147     // The previous resource action
 148     private Action fPreviousResourceAction;
 149
 150     // A comparator class
 151     private final ControlFlowEntryComparator fControlFlowEntryComparator = new ControlFlowEntryComparator();
 152
 153     // The redraw state used to prevent unnecessary queuing of display runnables
 154     private State fRedrawState = State.IDLE;
 155
 156     // The redraw synchronization object
 157     final private Object fSyncObj = new Object();
 158
 159     // ------------------------------------------------------------------------
 160     // Classes
 161     // ------------------------------------------------------------------------
 162
 163     private class TreeContentProvider implements ITreeContentProvider {
 164
 165         @Override
 166         public void dispose() {
 167         }
 168
 169         @Override
 170         public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 171         }
 172
 173         @Override
 174         public Object[] getElements(Object inputElement) {
 175             return (ITimeGraphEntry[]) inputElement;
 176         }
 177
 178         @Override
 179         public Object[] getChildren(Object parentElement) {
 180             ITimeGraphEntry entry = (ITimeGraphEntry) parentElement;
 181             List<? extends ITimeGraphEntry> children = entry.getChildren();
 182             return children.toArray(new ITimeGraphEntry[children.size()]);
 183         }
 184
 185         @Override
 186         public Object getParent(Object element) {
 187             ITimeGraphEntry entry = (ITimeGraphEntry) element;
 188             return entry.getParent();
 189         }
 190
 191         @Override
 192         public boolean hasChildren(Object element) {
 193             ITimeGraphEntry entry = (ITimeGraphEntry) element;
 194             return entry.hasChildren();
 195         }
 196
 197     }
 198
 199     private class TreeLabelProvider implements ITableLabelProvider {
 200
 201         @Override
 202         public void addListener(ILabelProviderListener listener) {
 203         }
 204
 205         @Override
 206         public void dispose() {
 207         }
 208
 209         @Override
 210         public boolean isLabelProperty(Object element, String property) {
 211             return false;
 212         }
 213
 214         @Override
 215         public void removeListener(ILabelProviderListener listener) {
 216         }
 217
 218         @Override
 219         public Image getColumnImage(Object element, int columnIndex) {
 220             return null;
 221         }
 222
 223         @Override
 224         public String getColumnText(Object element, int columnIndex) {
 225             ControlFlowEntry entry = (ControlFlowEntry) element;
 226             if (columnIndex == 0) {
 227                 return entry.getName();
 228             } else if (columnIndex == 1) {
 229                 return Integer.toString(entry.getThreadId());
 230             } else if (columnIndex == 2) {
 231                 if (entry.getParentThreadId() > 0) {
 232                     return Integer.toString(entry.getParentThreadId());
 233                 }
 234             } else if (columnIndex == 3) {
 235                 return Utils.formatTime(entry.getStartTime(), TimeFormat.CALENDAR, Resolution.NANOSEC);
 236             } else if (columnIndex == 4) {
 237                 return entry.getTrace().getName();
 238             }
 239             return ""; //$NON-NLS-1$
 240         }
 241
 242     }
 243
 244     private static class ControlFlowEntryComparator implements Comparator<ITimeGraphEntry> {
 245
 246         @Override
 247         public int compare(ITimeGraphEntry o1, ITimeGraphEntry o2) {
 248             int result = 0;
 249
 250             if ((o1 instanceof ControlFlowEntry) && (o2 instanceof ControlFlowEntry)) {
 251                 ControlFlowEntry entry1 = (ControlFlowEntry) o1;
 252                 ControlFlowEntry entry2 = (ControlFlowEntry) o2;
 253                 result = entry1.getTrace().getStartTime().compareTo(entry2.getTrace().getStartTime());
 254                 if (result == 0) {
 255                     result = entry1.getTrace().getName().compareTo(entry2.getTrace().getName());
 256                 }
 257                 if (result == 0) {
 258                     result = entry1.getThreadId() < entry2.getThreadId() ? -1 : entry1.getThreadId() > entry2.getThreadId() ? 1 : 0;
 259                 }
 260             }
 261
 262             if (result == 0) {
 263                 result = o1.getStartTime() < o2.getStartTime() ? -1 : o1.getStartTime() > o2.getStartTime() ? 1 : 0;
 264             }
 265
 266             return result;
 267         }
 268     }
 269
 270     private class BuildThread extends Thread {
 271         private final ITmfTrace fBuildTrace;
 272         private final IProgressMonitor fMonitor;
 273
 274         public BuildThread(ITmfTrace trace) {
 275             super("ControlFlowView build"); //$NON-NLS-1$
 276             fBuildTrace = trace;
 277             fMonitor = new NullProgressMonitor();
 278         }
 279
 280         @Override
 281         public void run() {
 282             buildEventList(fBuildTrace, fMonitor);
 283             synchronized (fBuildThreadMap) {
 284                 fBuildThreadMap.remove(this);
 285             }
 286         }
 287
 288         public void cancel() {
 289             fMonitor.setCanceled(true);
 290         }
 291     }
 292
 293     private class ZoomThread extends Thread {
 294         private final ArrayList<ControlFlowEntry> fZoomEntryList;
 295         private final long fZoomStartTime;
 296         private final long fZoomEndTime;
 297         private final long fResolution;
 298         private final IProgressMonitor fMonitor;
 299
 300         public ZoomThread(ArrayList<ControlFlowEntry> entryList, long startTime, long endTime) {
 301             super("ControlFlowView zoom"); //$NON-NLS-1$
 302             fZoomEntryList = entryList;
 303             fZoomStartTime = startTime;
 304             fZoomEndTime = endTime;
 305             fResolution = Math.max(1, (fZoomEndTime - fZoomStartTime) / fDisplayWidth);
 306             fMonitor = new NullProgressMonitor();
 307         }
 308
 309         @Override
 310         public void run() {
 311             if (fZoomEntryList == null) {
 312                 return;
 313             }
 314             for (ControlFlowEntry entry : fZoomEntryList) {
 315                 if (fMonitor.isCanceled()) {
 316                     break;
 317                 }
 318                 zoom(entry, fMonitor);
 319             }
 320         }
 321
 322         private void zoom(ControlFlowEntry entry, IProgressMonitor monitor) {
 323             if (fZoomStartTime <= fStartTime && fZoomEndTime >= fEndTime) {
 324                 entry.setZoomedEventList(null);
 325             } else {
 326                 List<ITimeEvent> zoomedEventList = getEventList(entry, fZoomStartTime, fZoomEndTime, fResolution, monitor);
 327                 if (zoomedEventList != null) {
 328                     entry.setZoomedEventList(zoomedEventList);
 329                 }
 330             }
 331             redraw();
 332             for (ControlFlowEntry child : entry.getChildren()) {
 333                 if (fMonitor.isCanceled()) {
 334                     return;
 335                 }
 336                 zoom(child, monitor);
 337             }
 338         }
 339
 340         public void cancel() {
 341             fMonitor.setCanceled(true);
 342         }
 343     }
 344
 345     // ------------------------------------------------------------------------
 346     // Constructors
 347     // ------------------------------------------------------------------------
 348
 349     /**
 350      * Constructor
 351      */
 352     public ControlFlowView() {
 353         super(ID);
 354         fDisplayWidth = Display.getDefault().getBounds().width;
 355     }
 356
 357     // ------------------------------------------------------------------------
 358     // ViewPart
 359     // ------------------------------------------------------------------------
 360
 361     /* (non-Javadoc)
 362      * @see org.eclipse.linuxtools.tmf.ui.views.TmfView#createPartControl(org.eclipse.swt.widgets.Composite)
 363      */
 364     @Override
 365     public void createPartControl(Composite parent) {
 366         fTimeGraphCombo = new TimeGraphCombo(parent, SWT.NONE);
 367
 368         fTimeGraphCombo.setTreeContentProvider(new TreeContentProvider());
 369
 370         fTimeGraphCombo.setTreeLabelProvider(new TreeLabelProvider());
 371
 372         fTimeGraphCombo.setTimeGraphProvider(new ControlFlowPresentationProvider());
 373
 374         fTimeGraphCombo.setTreeColumns(COLUMN_NAMES);
 375
 376         fTimeGraphCombo.setFilterContentProvider(new TreeContentProvider());
 377
 378         fTimeGraphCombo.setFilterLabelProvider(new TreeLabelProvider());
 379
 380         fTimeGraphCombo.setFilterColumns(FILTER_COLUMN_NAMES);
 381
 382         fTimeGraphCombo.getTimeGraphViewer().addRangeListener(new ITimeGraphRangeListener() {
 383             @Override
 384             public void timeRangeUpdated(TimeGraphRangeUpdateEvent event) {
 385                 final long startTime = event.getStartTime();
 386                 final long endTime = event.getEndTime();
 387                 TmfTimeRange range = new TmfTimeRange(new CtfTmfTimestamp(startTime), new CtfTmfTimestamp(endTime));
 388                 TmfTimestamp time = new CtfTmfTimestamp(fTimeGraphCombo.getTimeGraphViewer().getSelectedTime());
 389                 broadcast(new TmfRangeSynchSignal(ControlFlowView.this, range, time));
 390                 if (fZoomThread != null) {
 391                     fZoomThread.cancel();
 392                 }
 393                 startZoomThread(startTime, endTime);
 394             }
 395         });
 396
 397         fTimeGraphCombo.getTimeGraphViewer().addTimeListener(new ITimeGraphTimeListener() {
 398             @Override
 399             public void timeSelected(TimeGraphTimeEvent event) {
 400                 long time = event.getTime();
 401                 broadcast(new TmfTimeSynchSignal(ControlFlowView.this, new CtfTmfTimestamp(time)));
 402             }
 403         });
 404
 405         fTimeGraphCombo.addSelectionListener(new ITimeGraphSelectionListener() {
 406             @Override
 407             public void selectionChanged(TimeGraphSelectionEvent event) {
 408                 //ITimeGraphEntry selection = event.getSelection();
 409             }
 410         });
 411
 412         fTimeGraphCombo.getTimeGraphViewer().setTimeFormat(TimeFormat.CALENDAR);
 413
 414         // View Action Handling
 415         makeActions();
 416         contributeToActionBars();
 417
 418         IEditorPart editor = getSite().getPage().getActiveEditor();
 419         if (editor instanceof ITmfTraceEditor) {
 420             ITmfTrace trace = ((ITmfTraceEditor) editor).getTrace();
 421             if (trace != null) {
 422                 traceSelected(new TmfTraceSelectedSignal(this, trace));
 423             }
 424         }
 425     }
 426
 427     /* (non-Javadoc)
 428      * @see org.eclipse.ui.part.WorkbenchPart#setFocus()
 429      */
 430     @Override
 431     public void setFocus() {
 432         fTimeGraphCombo.setFocus();
 433     }
 434
 435     // ------------------------------------------------------------------------
 436     // Signal handlers
 437     // ------------------------------------------------------------------------
 438
 439     /**
 440      * Handler for the trace selected signal
 441      *
 442      * @param signal
 443      *            The signal that's received
 444      */
 445     @TmfSignalHandler
 446     public void traceSelected(final TmfTraceSelectedSignal signal) {
 447         if (signal.getTrace() == fTrace) {
 448             return;
 449         }
 450         fTrace = signal.getTrace();
 451
 452         synchronized (fEntryListMap) {
 453             fEntryList = fEntryListMap.get(fTrace);
 454             if (fEntryList == null) {
 455                 synchronized (fBuildThreadMap) {
 456                     BuildThread buildThread = new BuildThread(fTrace);
 457                     fBuildThreadMap.put(fTrace, buildThread);
 458                     buildThread.start();
 459                 }
 460             } else {
 461                 fStartTime = fTrace.getStartTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 462                 fEndTime = fTrace.getEndTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 463                 refresh();
 464             }
 465         }
 466     }
 467
 468     /**
 469      * Trace is closed: clear the data structures and the view
 470      *
 471      * @param signal the signal received
 472      */
 473     @TmfSignalHandler
 474     public void traceClosed(final TmfTraceClosedSignal signal) {
 475         synchronized (fBuildThreadMap) {
 476             BuildThread buildThread = fBuildThreadMap.remove(signal.getTrace());
 477             if (buildThread != null) {
 478                 buildThread.cancel();
 479             }
 480         }
 481         synchronized (fEntryListMap) {
 482             fEntryListMap.remove(signal.getTrace());
 483         }
 484         if (signal.getTrace() == fTrace) {
 485             fTrace = null;
 486             fStartTime = 0;
 487             fEndTime = 0;
 488             if (fZoomThread != null) {
 489                 fZoomThread.cancel();
 490             }
 491             refresh();
 492         }
 493     }
 494
 495     /**
 496      * Handler for the synch signal
 497      *
 498      * @param signal
 499      *            The signal that's received
 500      */
 501     @TmfSignalHandler
 502     public void synchToTime(final TmfTimeSynchSignal signal) {
 503         if (signal.getSource() == this || fTrace == null) {
 504             return;
 505         }
 506         final long time = signal.getCurrentTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 507
 508         int thread = -1;
 509         ITmfTrace[] traces;
 510         if (fTrace instanceof TmfExperiment) {
 511             TmfExperiment experiment = (TmfExperiment) fTrace;
 512             traces = experiment.getTraces();
 513         } else {
 514             traces = new ITmfTrace[] { fTrace };
 515         }
 516         for (ITmfTrace trace : traces) {
 517             if (thread > 0) {
 518                 break;
 519             }
 520             if (trace instanceof CtfKernelTrace) {
 521                 CtfKernelTrace ctfKernelTrace = (CtfKernelTrace) trace;
 522                 ITmfStateSystem ssq = ctfKernelTrace.getStateSystem(CtfKernelTrace.STATE_ID);
 523                 if (time >= ssq.getStartTime() && time <= ssq.getCurrentEndTime()) {
 524                     List<Integer> currentThreadQuarks = ssq.getQuarks(Attributes.CPUS, "*", Attributes.CURRENT_THREAD);  //$NON-NLS-1$
 525                     for (int currentThreadQuark : currentThreadQuarks) {
 526                         try {
 527                             ITmfStateInterval currentThreadInterval = ssq.querySingleState(time, currentThreadQuark);
 528                             int currentThread = currentThreadInterval.getStateValue().unboxInt();
 529                             if (currentThread > 0) {
 530                                 int statusQuark = ssq.getQuarkAbsolute(Attributes.THREADS, Integer.toString(currentThread), Attributes.STATUS);
 531                                 ITmfStateInterval statusInterval = ssq.querySingleState(time, statusQuark);
 532                                 if (statusInterval.getStartTime() == time) {
 533                                     thread = currentThread;
 534                                     break;
 535                                 }
 536                             }
 537                         } catch (AttributeNotFoundException e) {
 538                             e.printStackTrace();
 539                         } catch (TimeRangeException e) {
 540                             e.printStackTrace();
 541                         } catch (StateValueTypeException e) {
 542                             e.printStackTrace();
 543                         } catch (StateSystemDisposedException e) {
 544                             /* Ignored */
 545                         }
 546                     }
 547                 }
 548             }
 549         }
 550         final int selectedThread = thread;
 551
 552         Display.getDefault().asyncExec(new Runnable() {
 553             @Override
 554             public void run() {
 555                 if (fTimeGraphCombo.isDisposed()) {
 556                     return;
 557                 }
 558                 fTimeGraphCombo.getTimeGraphViewer().setSelectedTime(time, true);
 559                 startZoomThread(fTimeGraphCombo.getTimeGraphViewer().getTime0(), fTimeGraphCombo.getTimeGraphViewer().getTime1());
 560
 561                 if (selectedThread > 0) {
 562                     for (Object element : fTimeGraphCombo.getTimeGraphViewer().getExpandedElements()) {
 563                         if (element instanceof ControlFlowEntry) {
 564                             ControlFlowEntry entry = (ControlFlowEntry) element;
 565                             if (entry.getThreadId() == selectedThread) {
 566                                 fTimeGraphCombo.setSelection(entry);
 567                                 break;
 568                             }
 569                         }
 570                     }
 571                 }
 572             }
 573         });
 574     }
 575
 576     /**
 577      * Handler for the range sync signal
 578      *
 579      * @param signal
 580      *            The signal that's received
 581      */
 582     @TmfSignalHandler
 583     public void synchToRange(final TmfRangeSynchSignal signal) {
 584         if (signal.getSource() == this || fTrace == null) {
 585             return;
 586         }
 587         if (signal.getCurrentRange().getIntersection(fTrace.getTimeRange()) == null) {
 588             return;
 589         }
 590         final long startTime = signal.getCurrentRange().getStartTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 591         final long endTime = signal.getCurrentRange().getEndTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 592         final long time = signal.getCurrentTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 593         Display.getDefault().asyncExec(new Runnable() {
 594             @Override
 595             public void run() {
 596                 if (fTimeGraphCombo.isDisposed()) {
 597                     return;
 598                 }
 599                 fTimeGraphCombo.getTimeGraphViewer().setStartFinishTime(startTime, endTime);
 600                 fTimeGraphCombo.getTimeGraphViewer().setSelectedTime(time, false);
 601                 startZoomThread(startTime, endTime);
 602             }
 603         });
 604     }
 605
 606     // ------------------------------------------------------------------------
 607     // Internal
 608     // ------------------------------------------------------------------------
 609
 610     private void buildEventList(final ITmfTrace trace, IProgressMonitor monitor) {
 611         fStartTime = Long.MAX_VALUE;
 612         fEndTime = Long.MIN_VALUE;
 613         ITmfTrace[] traces;
 614         if (trace instanceof TmfExperiment) {
 615             TmfExperiment experiment = (TmfExperiment) trace;
 616             traces = experiment.getTraces();
 617         } else {
 618             traces = new ITmfTrace[] { trace };
 619         }
 620         ArrayList<ControlFlowEntry> rootList = new ArrayList<ControlFlowEntry>();
 621         for (ITmfTrace aTrace : traces) {
 622             if (monitor.isCanceled()) {
 623                 return;
 624             }
 625             if (aTrace instanceof CtfKernelTrace) {
 626                 ArrayList<ControlFlowEntry> entryList = new ArrayList<ControlFlowEntry>();
 627                 CtfKernelTrace ctfKernelTrace = (CtfKernelTrace) aTrace;
 628                 ITmfStateSystem ssq = ctfKernelTrace.getStateSystem(CtfKernelTrace.STATE_ID);
 629                 if (!ssq.waitUntilBuilt()) {
 630                     return;
 631                 }
 632                 long start = ssq.getStartTime();
 633                 long end = ssq.getCurrentEndTime() + 1;
 634                 fStartTime = Math.min(fStartTime, start);
 635                 fEndTime = Math.max(fEndTime, end);
 636                 List<Integer> threadQuarks = ssq.getQuarks(Attributes.THREADS, "*"); //$NON-NLS-1$
 637                 for (int threadQuark : threadQuarks) {
 638                     if (monitor.isCanceled()) {
 639                         return;
 640                     }
 641                     String threadName = ssq.getAttributeName(threadQuark);
 642                     int threadId = -1;
 643                     try {
 644                         threadId = Integer.parseInt(threadName);
 645                     } catch (NumberFormatException e1) {
 646                         continue;
 647                     }
 648                     if (threadId == 0) { // ignore the swapper thread
 649                         continue;
 650                     }
 651                     int execNameQuark = -1;
 652                     try {
 653                         try {
 654                             execNameQuark = ssq.getQuarkRelative(threadQuark, Attributes.EXEC_NAME);
 655                         } catch (AttributeNotFoundException e) {
 656                             continue;
 657                         }
 658                         int ppidQuark = ssq.getQuarkRelative(threadQuark, Attributes.PPID);
 659                         List<ITmfStateInterval> execNameIntervals = ssq.queryHistoryRange(execNameQuark, start, end - 1); // use monitor when available in api
 660                         if (monitor.isCanceled()) {
 661                             return;
 662                         }
 663                         ControlFlowEntry entry = null;
 664                         for (ITmfStateInterval execNameInterval : execNameIntervals) {
 665                             if (monitor.isCanceled()) {
 666                                 return;
 667                             }
 668                             if (!execNameInterval.getStateValue().isNull() && execNameInterval.getStateValue().getType() == 1) {
 669                                 String execName = execNameInterval.getStateValue().unboxStr();
 670                                 long startTime = execNameInterval.getStartTime();
 671                                 long endTime = execNameInterval.getEndTime() + 1;
 672                                 int ppid = -1;
 673                                 if (ppidQuark != -1) {
 674                                     ITmfStateInterval ppidInterval = ssq.querySingleState(startTime, ppidQuark);
 675                                     ppid = ppidInterval.getStateValue().unboxInt();
 676                                 }
 677                                 if (entry == null) {
 678                                     entry = new ControlFlowEntry(threadQuark, ctfKernelTrace, execName, threadId, ppid, startTime, endTime);
 679                                     entryList.add(entry);
 680                                 } else {
 681                                     // update the name of the entry to the latest execName
 682                                     entry.setName(execName);
 683                                 }
 684                                 entry.addEvent(new TimeEvent(entry, startTime, endTime - startTime));
 685                             } else {
 686                                 entry = null;
 687                             }
 688                         }
 689                     } catch (AttributeNotFoundException e) {
 690                         e.printStackTrace();
 691                     } catch (TimeRangeException e) {
 692                         e.printStackTrace();
 693                     } catch (StateValueTypeException e) {
 694                         e.printStackTrace();
 695                     } catch (StateSystemDisposedException e) {
 696                         /* Ignored */
 697                     }
 698                 }
 699                 buildTree(entryList, rootList);
 700             }
 701             Collections.sort(rootList, fControlFlowEntryComparator);
 702             synchronized (fEntryListMap) {
 703                 fEntryListMap.put(trace, (ArrayList<ControlFlowEntry>) rootList.clone());
 704             }
 705             if (trace == fTrace) {
 706                 refresh();
 707             }
 708         }
 709         for (ControlFlowEntry entry : rootList) {
 710             if (monitor.isCanceled()) {
 711                 return;
 712             }
 713             buildStatusEvents(trace, entry, monitor);
 714         }
 715     }
 716
 717     private static void buildTree(ArrayList<ControlFlowEntry> entryList,
 718             ArrayList<ControlFlowEntry> rootList) {
 719         for (ControlFlowEntry entry : entryList) {
 720             boolean root = true;
 721             if (entry.getParentThreadId() > 0) {
 722                 for (ControlFlowEntry parent : entryList) {
 723                     if (parent.getThreadId() == entry.getParentThreadId() &&
 724                             entry.getStartTime() >= parent.getStartTime() &&
 725                             entry.getStartTime() <= parent.getEndTime()) {
 726                         parent.addChild(entry);
 727                         root = false;
 728                         break;
 729                     }
 730                 }
 731             }
 732             if (root) {
 733                 rootList.add(entry);
 734             }
 735         }
 736     }
 737
 738     private void buildStatusEvents(ITmfTrace trace, ControlFlowEntry entry, IProgressMonitor monitor) {
 739         ITmfStateSystem ssq = entry.getTrace().getStateSystem(CtfKernelTrace.STATE_ID);
 740         long start = ssq.getStartTime();
 741         long end = ssq.getCurrentEndTime() + 1;
 742         long resolution = Math.max(1, (end - start) / fDisplayWidth);
 743         List<ITimeEvent> eventList = getEventList(entry, entry.getStartTime(), entry.getEndTime(), resolution, monitor);
 744         if (monitor.isCanceled()) {
 745             return;
 746         }
 747         entry.setEventList(eventList);
 748         if (trace == fTrace) {
 749             redraw();
 750         }
 751         for (ITimeGraphEntry child : entry.getChildren()) {
 752             if (monitor.isCanceled()) {
 753                 return;
 754             }
 755             buildStatusEvents(trace, (ControlFlowEntry) child, monitor);
 756         }
 757     }
 758
 759     private static List<ITimeEvent> getEventList(ControlFlowEntry entry,
 760             long startTime, long endTime, long resolution,
 761             IProgressMonitor monitor) {
 762         final long realStart = Math.max(startTime, entry.getStartTime());
 763         final long realEnd = Math.min(endTime, entry.getEndTime());
 764         if (realEnd <= realStart) {
 765             return null;
 766         }
 767         ITmfStateSystem ssq = entry.getTrace().getStateSystem(CtfKernelTrace.STATE_ID);
 768         List<ITimeEvent> eventList = null;
 769         try {
 770             int statusQuark = ssq.getQuarkRelative(entry.getThreadQuark(), Attributes.STATUS);
 771             List<ITmfStateInterval> statusIntervals = ssq.queryHistoryRange(statusQuark, realStart, realEnd - 1, resolution, monitor);
 772             eventList = new ArrayList<ITimeEvent>(statusIntervals.size());
 773             long lastEndTime = -1;
 774             for (ITmfStateInterval statusInterval : statusIntervals) {
 775                 if (monitor.isCanceled()) {
 776                     return null;
 777                 }
 778                 long time = statusInterval.getStartTime();
 779                 long duration = statusInterval.getEndTime() - time + 1;
 780                 int status = -1;
 781                 try {
 782                     status = statusInterval.getStateValue().unboxInt();
 783                 } catch (StateValueTypeException e) {
 784                     e.printStackTrace();
 785                 }
 786                 if (lastEndTime != time && lastEndTime != -1) {
 787                     eventList.add(new ControlFlowEvent(entry, lastEndTime, time - lastEndTime, 0));
 788                 }
 789                 eventList.add(new ControlFlowEvent(entry, time, duration, status));
 790                 lastEndTime = time + duration;
 791             }
 792         } catch (AttributeNotFoundException e) {
 793             e.printStackTrace();
 794         } catch (TimeRangeException e) {
 795             e.printStackTrace();
 796         } catch (StateSystemDisposedException e) {
 797             /* Ignored */
 798         }
 799         return eventList;
 800     }
 801
 802     private void refresh() {
 803         Display.getDefault().asyncExec(new Runnable() {
 804             @Override
 805             public void run() {
 806                 if (fTimeGraphCombo.isDisposed()) {
 807                     return;
 808                 }
 809                 ITimeGraphEntry[] entries = null;
 810                 synchronized (fEntryListMap) {
 811                     fEntryList = fEntryListMap.get(fTrace);
 812                     if (fEntryList == null) {
 813                         fEntryList = new ArrayList<ControlFlowEntry>();
 814                     }
 815                     entries = fEntryList.toArray(new ITimeGraphEntry[0]);
 816                 }
 817                 Arrays.sort(entries, fControlFlowEntryComparator);
 818                 fTimeGraphCombo.setInput(entries);
 819                 fTimeGraphCombo.getTimeGraphViewer().setTimeBounds(fStartTime, fEndTime);
 820
 821                 long timestamp = fTrace == null ? 0 : fTrace.getCurrentTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 822                 long startTime = fTrace == null ? 0 : fTrace.getCurrentRange().getStartTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 823                 long endTime = fTrace == null ? 0 : fTrace.getCurrentRange().getEndTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 824                 startTime = Math.max(startTime, fStartTime);
 825                 endTime = Math.min(endTime, fEndTime);
 826                 fTimeGraphCombo.getTimeGraphViewer().setSelectedTime(timestamp, false);
 827                 fTimeGraphCombo.getTimeGraphViewer().setStartFinishTime(startTime, endTime);
 828
 829                 for (TreeColumn column : fTimeGraphCombo.getTreeViewer().getTree().getColumns()) {
 830                     column.pack();
 831                 }
 832
 833                 startZoomThread(startTime, endTime);
 834             }
 835         });
 836     }
 837
 838     private void redraw() {
 839         synchronized (fSyncObj) {
 840             if (fRedrawState == State.IDLE) {
 841                 fRedrawState = State.BUSY;
 842             } else {
 843                 fRedrawState = State.PENDING;
 844                 return;
 845             }
 846         }
 847         Display.getDefault().asyncExec(new Runnable() {
 848             @Override
 849             public void run() {
 850                 if (fTimeGraphCombo.isDisposed()) {
 851                     return;
 852                 }
 853                 fTimeGraphCombo.redraw();
 854                 fTimeGraphCombo.update();
 855                 synchronized (fSyncObj) {
 856                     if (fRedrawState == State.PENDING) {
 857                         fRedrawState = State.IDLE;
 858                         redraw();
 859                     } else {
 860                         fRedrawState = State.IDLE;
 861                     }
 862                 }
 863             }
 864         });
 865     }
 866
 867     private void startZoomThread(long startTime, long endTime) {
 868         if (fZoomThread != null) {
 869             fZoomThread.cancel();
 870         }
 871         fZoomThread = new ZoomThread(fEntryList, startTime, endTime);
 872         fZoomThread.start();
 873     }
 874
 875     private void makeActions() {
 876         fPreviousResourceAction = fTimeGraphCombo.getTimeGraphViewer().getPreviousItemAction();
 877         fPreviousResourceAction.setText(Messages.ControlFlowView_previousProcessActionNameText);
 878         fPreviousResourceAction.setToolTipText(Messages.ControlFlowView_previousProcessActionToolTipText);
 879         fNextResourceAction = fTimeGraphCombo.getTimeGraphViewer().getNextItemAction();
 880         fNextResourceAction.setText(Messages.ControlFlowView_nextProcessActionNameText);
 881         fNextResourceAction.setToolTipText(Messages.ControlFlowView_nextProcessActionToolTipText);
 882     }
 883
 884     private void contributeToActionBars() {
 885         IActionBars bars = getViewSite().getActionBars();
 886         fillLocalToolBar(bars.getToolBarManager());
 887     }
 888
 889     private void fillLocalToolBar(IToolBarManager manager) {
 890         manager.add(fTimeGraphCombo.getShowFilterAction());
 891         manager.add(fTimeGraphCombo.getTimeGraphViewer().getShowLegendAction());
 892         manager.add(new Separator());
 893         manager.add(fTimeGraphCombo.getTimeGraphViewer().getResetScaleAction());
 894         manager.add(fTimeGraphCombo.getTimeGraphViewer().getPreviousEventAction());
 895         manager.add(fTimeGraphCombo.getTimeGraphViewer().getNextEventAction());
 896         manager.add(fPreviousResourceAction);
 897         manager.add(fNextResourceAction);
 898         manager.add(fTimeGraphCombo.getTimeGraphViewer().getZoomInAction());
 899         manager.add(fTimeGraphCombo.getTimeGraphViewer().getZoomOutAction());
 900         manager.add(new Separator());
 901     }
 902 }