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     /**
  90      * Initial time range
  91      */
  92     private static final long INITIAL_WINDOW_OFFSET = (1L * 100  * 1000 * 1000); // .1sec
  93
  94     private static final String PROCESS_COLUMN    = Messages.ControlFlowView_processColumn;
  95     private static final String TID_COLUMN        = Messages.ControlFlowView_tidColumn;
  96     private static final String PTID_COLUMN       = Messages.ControlFlowView_ptidColumn;
  97     private static final String BIRTH_TIME_COLUMN = Messages.ControlFlowView_birthTimeColumn;
  98     private static final String TRACE_COLUMN      = Messages.ControlFlowView_traceColumn;
  99
 100     private final String[] COLUMN_NAMES = new String[] {
 101             PROCESS_COLUMN,
 102             TID_COLUMN,
 103             PTID_COLUMN,
 104             BIRTH_TIME_COLUMN,
 105             TRACE_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.getBirthTime(), TimeFormat.ABSOLUTE, 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.getTimeGraphViewer().addRangeListener(new ITimeGraphRangeListener() {
 377             @Override
 378             public void timeRangeUpdated(TimeGraphRangeUpdateEvent event) {
 379                 final long startTime = event.getStartTime();
 380                 final long endTime = event.getEndTime();
 381                 TmfTimeRange range = new TmfTimeRange(new CtfTmfTimestamp(startTime), new CtfTmfTimestamp(endTime));
 382                 TmfTimestamp time = new CtfTmfTimestamp(fTimeGraphCombo.getTimeGraphViewer().getSelectedTime());
 383                 broadcast(new TmfRangeSynchSignal(ControlFlowView.this, range, time));
 384                 if (fZoomThread != null) {
 385                     fZoomThread.cancel();
 386                 }
 387                 startZoomThread(startTime, endTime);
 388             }
 389         });
 390
 391         fTimeGraphCombo.getTimeGraphViewer().addTimeListener(new ITimeGraphTimeListener() {
 392             @Override
 393             public void timeSelected(TimeGraphTimeEvent event) {
 394                 long time = event.getTime();
 395                 broadcast(new TmfTimeSynchSignal(ControlFlowView.this, new CtfTmfTimestamp(time)));
 396             }
 397         });
 398
 399         fTimeGraphCombo.addSelectionListener(new ITimeGraphSelectionListener() {
 400             @Override
 401             public void selectionChanged(TimeGraphSelectionEvent event) {
 402                 //ITimeGraphEntry selection = event.getSelection();
 403             }
 404         });
 405
 406         fTimeGraphCombo.getTimeGraphViewer().setTimeCalendarFormat(true);
 407
 408         // View Action Handling
 409         makeActions();
 410         contributeToActionBars();
 411
 412         IEditorPart editor = getSite().getPage().getActiveEditor();
 413         if (editor instanceof ITmfTraceEditor) {
 414             ITmfTrace trace = ((ITmfTraceEditor) editor).getTrace();
 415             if (trace != null) {
 416                 traceSelected(new TmfTraceSelectedSignal(this, trace));
 417             }
 418         }
 419     }
 420
 421     /* (non-Javadoc)
 422      * @see org.eclipse.ui.part.WorkbenchPart#setFocus()
 423      */
 424     @Override
 425     public void setFocus() {
 426         fTimeGraphCombo.setFocus();
 427     }
 428
 429     // ------------------------------------------------------------------------
 430     // Signal handlers
 431     // ------------------------------------------------------------------------
 432
 433     /**
 434      * Handler for the trace selected signal
 435      *
 436      * @param signal
 437      *            The signal that's received
 438      */
 439     @TmfSignalHandler
 440     public void traceSelected(final TmfTraceSelectedSignal signal) {
 441         if (signal.getTrace() == fTrace) {
 442             return;
 443         }
 444         fTrace = signal.getTrace();
 445
 446         synchronized (fEntryListMap) {
 447             fEntryList = fEntryListMap.get(fTrace);
 448             if (fEntryList == null) {
 449                 synchronized (fBuildThreadMap) {
 450                     BuildThread buildThread = new BuildThread(fTrace);
 451                     fBuildThreadMap.put(fTrace, buildThread);
 452                     buildThread.start();
 453                 }
 454             } else {
 455                 fStartTime = fTrace.getStartTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 456                 fEndTime = fTrace.getEndTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 457                 refresh(INITIAL_WINDOW_OFFSET);
 458             }
 459         }
 460     }
 461
 462     /**
 463      * Trace is closed: clear the data structures and the view
 464      *
 465      * @param signal the signal received
 466      */
 467     @TmfSignalHandler
 468     public void traceClosed(final TmfTraceClosedSignal signal) {
 469         synchronized (fBuildThreadMap) {
 470             BuildThread buildThread = fBuildThreadMap.remove(signal.getTrace());
 471             if (buildThread != null) {
 472                 buildThread.cancel();
 473             }
 474         }
 475         synchronized (fEntryListMap) {
 476             fEntryListMap.remove(signal.getTrace());
 477         }
 478         if (signal.getTrace() == fTrace) {
 479             fTrace = null;
 480             fStartTime = 0;
 481             fEndTime = 0;
 482             if (fZoomThread != null) {
 483                 fZoomThread.cancel();
 484             }
 485             refresh(INITIAL_WINDOW_OFFSET);
 486         }
 487     }
 488
 489     /**
 490      * Handler for the synch signal
 491      *
 492      * @param signal
 493      *            The signal that's received
 494      */
 495     @TmfSignalHandler
 496     public void synchToTime(final TmfTimeSynchSignal signal) {
 497         if (signal.getSource() == this || fTrace == null) {
 498             return;
 499         }
 500         final long time = signal.getCurrentTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 501
 502         int thread = -1;
 503         ITmfTrace[] traces;
 504         if (fTrace instanceof TmfExperiment) {
 505             TmfExperiment experiment = (TmfExperiment) fTrace;
 506             traces = experiment.getTraces();
 507         } else {
 508             traces = new ITmfTrace[] { fTrace };
 509         }
 510         for (ITmfTrace trace : traces) {
 511             if (thread > 0) {
 512                 break;
 513             }
 514             if (trace instanceof CtfKernelTrace) {
 515                 CtfKernelTrace ctfKernelTrace = (CtfKernelTrace) trace;
 516                 ITmfStateSystem ssq = ctfKernelTrace.getStateSystem();
 517                 if (time >= ssq.getStartTime() && time <= ssq.getCurrentEndTime()) {
 518                     List<Integer> currentThreadQuarks = ssq.getQuarks(Attributes.CPUS, "*", Attributes.CURRENT_THREAD);  //$NON-NLS-1$
 519                     for (int currentThreadQuark : currentThreadQuarks) {
 520                         try {
 521                             ITmfStateInterval currentThreadInterval = ssq.querySingleState(time, currentThreadQuark);
 522                             int currentThread = currentThreadInterval.getStateValue().unboxInt();
 523                             if (currentThread > 0) {
 524                                 int statusQuark = ssq.getQuarkAbsolute(Attributes.THREADS, Integer.toString(currentThread), Attributes.STATUS);
 525                                 ITmfStateInterval statusInterval = ssq.querySingleState(time, statusQuark);
 526                                 if (statusInterval.getStartTime() == time) {
 527                                     thread = currentThread;
 528                                     break;
 529                                 }
 530                             }
 531                         } catch (AttributeNotFoundException e) {
 532                             e.printStackTrace();
 533                         } catch (TimeRangeException e) {
 534                             e.printStackTrace();
 535                         } catch (StateValueTypeException e) {
 536                             e.printStackTrace();
 537                         } catch (StateSystemDisposedException e) {
 538                             /* Ignored */
 539                         }
 540                     }
 541                 }
 542             }
 543         }
 544         final int selectedThread = thread;
 545
 546         Display.getDefault().asyncExec(new Runnable() {
 547             @Override
 548             public void run() {
 549                 if (fTimeGraphCombo.isDisposed()) {
 550                     return;
 551                 }
 552                 fTimeGraphCombo.getTimeGraphViewer().setSelectedTime(time, true);
 553                 startZoomThread(fTimeGraphCombo.getTimeGraphViewer().getTime0(), fTimeGraphCombo.getTimeGraphViewer().getTime1());
 554
 555                 if (selectedThread > 0) {
 556                     for (Object element : fTimeGraphCombo.getTimeGraphViewer().getExpandedElements()) {
 557                         if (element instanceof ControlFlowEntry) {
 558                             ControlFlowEntry entry = (ControlFlowEntry) element;
 559                             if (entry.getThreadId() == selectedThread) {
 560                                 fTimeGraphCombo.setSelection(entry);
 561                                 break;
 562                             }
 563                         }
 564                     }
 565                 }
 566             }
 567         });
 568     }
 569
 570     /**
 571      * Handler for the range sync signal
 572      *
 573      * @param signal
 574      *            The signal that's received
 575      */
 576     @TmfSignalHandler
 577     public void synchToRange(final TmfRangeSynchSignal signal) {
 578         if (signal.getSource() == this || fTrace == null) {
 579             return;
 580         }
 581         final long startTime = signal.getCurrentRange().getStartTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 582         final long endTime = signal.getCurrentRange().getEndTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 583         final long time = signal.getCurrentTime().normalize(0, ITmfTimestamp.NANOSECOND_SCALE).getValue();
 584         Display.getDefault().asyncExec(new Runnable() {
 585             @Override
 586             public void run() {
 587                 if (fTimeGraphCombo.isDisposed()) {
 588                     return;
 589                 }
 590                 fTimeGraphCombo.getTimeGraphViewer().setStartFinishTime(startTime, endTime);
 591                 fTimeGraphCombo.getTimeGraphViewer().setSelectedTime(time, false);
 592                 startZoomThread(startTime, endTime);
 593             }
 594         });
 595     }
 596
 597     // ------------------------------------------------------------------------
 598     // Internal
 599     // ------------------------------------------------------------------------
 600
 601     private void buildEventList(final ITmfTrace trace, IProgressMonitor monitor) {
 602         fStartTime = Long.MAX_VALUE;
 603         fEndTime = Long.MIN_VALUE;
 604         ITmfTrace[] traces;
 605         if (trace instanceof TmfExperiment) {
 606             TmfExperiment experiment = (TmfExperiment) trace;
 607             traces = experiment.getTraces();
 608         } else {
 609             traces = new ITmfTrace[] { trace };
 610         }
 611         ArrayList<ControlFlowEntry> rootList = new ArrayList<ControlFlowEntry>();
 612         for (ITmfTrace aTrace : traces) {
 613             if (monitor.isCanceled()) {
 614                 return;
 615             }
 616             if (aTrace instanceof CtfKernelTrace) {
 617                 ArrayList<ControlFlowEntry> entryList = new ArrayList<ControlFlowEntry>();
 618                 CtfKernelTrace ctfKernelTrace = (CtfKernelTrace) aTrace;
 619                 ITmfStateSystem ssq = ctfKernelTrace.getStateSystem();
 620                 if (!ssq.waitUntilBuilt()) {
 621                     return;
 622                 }
 623                 long start = ssq.getStartTime();
 624                 long end = ssq.getCurrentEndTime() + 1;
 625                 fStartTime = Math.min(fStartTime, start);
 626                 fEndTime = Math.max(fEndTime, end);
 627                 List<Integer> threadQuarks = ssq.getQuarks(Attributes.THREADS, "*"); //$NON-NLS-1$
 628                 for (int threadQuark : threadQuarks) {
 629                     if (monitor.isCanceled()) {
 630                         return;
 631                     }
 632                     String threadName = ssq.getAttributeName(threadQuark);
 633                     int threadId = -1;
 634                     try {
 635                         threadId = Integer.parseInt(threadName);
 636                     } catch (NumberFormatException e1) {
 637                         continue;
 638                     }
 639                     if (threadId == 0) { // ignore the swapper thread
 640                         continue;
 641                     }
 642                     int execNameQuark = -1;
 643                     try {
 644                         try {
 645                             execNameQuark = ssq.getQuarkRelative(threadQuark, Attributes.EXEC_NAME);
 646                         } catch (AttributeNotFoundException e) {
 647                             continue;
 648                         }
 649                         int ppidQuark = ssq.getQuarkRelative(threadQuark, Attributes.PPID);
 650                         List<ITmfStateInterval> execNameIntervals = ssq.queryHistoryRange(execNameQuark, start, end - 1); // use monitor when available in api
 651                         if (monitor.isCanceled()) {
 652                             return;
 653                         }
 654                         long birthTime = -1;
 655                         for (ITmfStateInterval execNameInterval : execNameIntervals) {
 656                             if (monitor.isCanceled()) {
 657                                 return;
 658                             }
 659                             if (!execNameInterval.getStateValue().isNull() && execNameInterval.getStateValue().getType() == 1) {
 660                                 String execName = execNameInterval.getStateValue().unboxStr();
 661                                 long startTime = execNameInterval.getStartTime();
 662                                 long endTime = execNameInterval.getEndTime() + 1;
 663                                 if (birthTime == -1) {
 664                                     birthTime = startTime;
 665                                 }
 666                                 int ppid = -1;
 667                                 if (ppidQuark != -1) {
 668                                     ITmfStateInterval ppidInterval = ssq.querySingleState(startTime, ppidQuark);
 669                                     ppid = ppidInterval.getStateValue().unboxInt();
 670                                 }
 671                                 ControlFlowEntry entry = new ControlFlowEntry(threadQuark, ctfKernelTrace, execName, threadId, ppid, birthTime, startTime, endTime);
 672                                 entryList.add(entry);
 673                                 entry.addEvent(new TimeEvent(entry, startTime, endTime - startTime));
 674                             } else {
 675                                 birthTime = -1;
 676                             }
 677                         }
 678                     } catch (AttributeNotFoundException e) {
 679                         e.printStackTrace();
 680                     } catch (TimeRangeException e) {
 681                         e.printStackTrace();
 682                     } catch (StateValueTypeException e) {
 683                         e.printStackTrace();
 684                     } catch (StateSystemDisposedException e) {
 685                         /* Ignored */
 686                     }
 687                 }
 688                 buildTree(entryList, rootList);
 689             }
 690             Collections.sort(rootList, fControlFlowEntryComparator);
 691             synchronized (fEntryListMap) {
 692                 fEntryListMap.put(trace, (ArrayList<ControlFlowEntry>) rootList.clone());
 693             }
 694             if (trace == fTrace) {
 695                 refresh(INITIAL_WINDOW_OFFSET);
 696             }
 697         }
 698         for (ControlFlowEntry entry : rootList) {
 699             if (monitor.isCanceled()) {
 700                 return;
 701             }
 702             buildStatusEvents(trace, entry, monitor);
 703         }
 704     }
 705
 706     private static void buildTree(ArrayList<ControlFlowEntry> entryList,
 707             ArrayList<ControlFlowEntry> rootList) {
 708         for (ControlFlowEntry entry : entryList) {
 709             boolean root = true;
 710             if (entry.getParentThreadId() > 0) {
 711                 for (ControlFlowEntry parent : entryList) {
 712                     if (parent.getThreadId() == entry.getParentThreadId() &&
 713                             entry.getStartTime() >= parent.getStartTime() &&
 714                             entry.getStartTime() <= parent.getEndTime()) {
 715                         parent.addChild(entry);
 716                         root = false;
 717                         break;
 718                     }
 719                 }
 720             }
 721             if (root) {
 722                 rootList.add(entry);
 723             }
 724         }
 725     }
 726
 727     private void buildStatusEvents(ITmfTrace trace, ControlFlowEntry entry, IProgressMonitor monitor) {
 728         ITmfStateSystem ssq = entry.getTrace().getStateSystem();
 729         long start = ssq.getStartTime();
 730         long end = ssq.getCurrentEndTime() + 1;
 731         long resolution = Math.max(1, (end - start) / fDisplayWidth);
 732         List<ITimeEvent> eventList = getEventList(entry, entry.getStartTime(), entry.getEndTime(), resolution, monitor);
 733         if (monitor.isCanceled()) {
 734             return;
 735         }
 736         entry.setEventList(eventList);
 737         if (trace == fTrace) {
 738             redraw();
 739         }
 740         for (ITimeGraphEntry child : entry.getChildren()) {
 741             if (monitor.isCanceled()) {
 742                 return;
 743             }
 744             buildStatusEvents(trace, (ControlFlowEntry) child, monitor);
 745         }
 746     }
 747
 748     private static List<ITimeEvent> getEventList(ControlFlowEntry entry,
 749             long startTime, long endTime, long resolution,
 750             IProgressMonitor monitor) {
 751         startTime = Math.max(startTime, entry.getStartTime());
 752         endTime = Math.min(endTime, entry.getEndTime());
 753         if (endTime <= startTime) {
 754             return null;
 755         }
 756         ITmfStateSystem ssq = entry.getTrace().getStateSystem();
 757         List<ITimeEvent> eventList = null;
 758         try {
 759             int statusQuark = ssq.getQuarkRelative(entry.getThreadQuark(), Attributes.STATUS);
 760             List<ITmfStateInterval> statusIntervals = ssq.queryHistoryRange(statusQuark, startTime, endTime - 1, resolution, monitor);
 761             eventList = new ArrayList<ITimeEvent>(statusIntervals.size());
 762             long lastEndTime = -1;
 763             for (ITmfStateInterval statusInterval : statusIntervals) {
 764                 if (monitor.isCanceled()) {
 765                     return null;
 766                 }
 767                 long time = statusInterval.getStartTime();
 768                 long duration = statusInterval.getEndTime() - time + 1;
 769                 int status = -1;
 770                 try {
 771                     status = statusInterval.getStateValue().unboxInt();
 772                 } catch (StateValueTypeException e) {
 773                     e.printStackTrace();
 774                 }
 775                 if (lastEndTime != time && lastEndTime != -1) {
 776                     eventList.add(new ControlFlowEvent(entry, lastEndTime, time - lastEndTime, 0));
 777                 }
 778                 eventList.add(new ControlFlowEvent(entry, time, duration, status));
 779                 lastEndTime = time + duration;
 780             }
 781         } catch (AttributeNotFoundException e) {
 782             e.printStackTrace();
 783         } catch (TimeRangeException e) {
 784             e.printStackTrace();
 785         } catch (StateSystemDisposedException e) {
 786             /* Ignored */
 787         }
 788         return eventList;
 789     }
 790
 791     private void refresh(final long windowRange) {
 792         Display.getDefault().asyncExec(new Runnable() {
 793             @Override
 794             public void run() {
 795                 if (fTimeGraphCombo.isDisposed()) {
 796                     return;
 797                 }
 798                 ITimeGraphEntry[] entries = null;
 799                 synchronized (fEntryListMap) {
 800                     fEntryList = fEntryListMap.get(fTrace);
 801                     if (fEntryList == null) {
 802                         fEntryList = new ArrayList<ControlFlowEntry>();
 803                     }
 804                     entries = fEntryList.toArray(new ITimeGraphEntry[0]);
 805                 }
 806                 Arrays.sort(entries, fControlFlowEntryComparator);
 807                 fTimeGraphCombo.setInput(entries);
 808                 fTimeGraphCombo.getTimeGraphViewer().setTimeBounds(fStartTime, fEndTime);
 809
 810                 long endTime = fStartTime + windowRange;
 811
 812                 if (fEndTime < endTime) {
 813                     endTime = fEndTime;
 814                 }
 815                 fTimeGraphCombo.getTimeGraphViewer().setStartFinishTime(fStartTime, endTime);
 816                 for (TreeColumn column : fTimeGraphCombo.getTreeViewer().getTree().getColumns()) {
 817                     column.pack();
 818                 }
 819
 820                 startZoomThread(fStartTime, endTime);
 821             }
 822         });
 823     }
 824
 825     private void redraw() {
 826         synchronized (fSyncObj) {
 827             if (fRedrawState == State.IDLE) {
 828                 fRedrawState = State.BUSY;
 829             } else {
 830                 fRedrawState = State.PENDING;
 831                 return;
 832             }
 833         }
 834         Display.getDefault().asyncExec(new Runnable() {
 835             @Override
 836             public void run() {
 837                 if (fTimeGraphCombo.isDisposed()) {
 838                     return;
 839                 }
 840                 fTimeGraphCombo.redraw();
 841                 fTimeGraphCombo.update();
 842                 synchronized (fSyncObj) {
 843                     if (fRedrawState == State.PENDING) {
 844                         fRedrawState = State.IDLE;
 845                         redraw();
 846                     } else {
 847                         fRedrawState = State.IDLE;
 848                     }
 849                 }
 850             }
 851         });
 852     }
 853
 854     private void startZoomThread(long startTime, long endTime) {
 855         if (fZoomThread != null) {
 856             fZoomThread.cancel();
 857         }
 858         fZoomThread = new ZoomThread(fEntryList, startTime, endTime);
 859         fZoomThread.start();
 860     }
 861
 862     private void makeActions() {
 863         fPreviousResourceAction = fTimeGraphCombo.getTimeGraphViewer().getPreviousItemAction();
 864         fPreviousResourceAction.setText(Messages.ControlFlowView_previousProcessActionNameText);
 865         fPreviousResourceAction.setToolTipText(Messages.ControlFlowView_previousProcessActionToolTipText);
 866         fNextResourceAction = fTimeGraphCombo.getTimeGraphViewer().getNextItemAction();
 867         fNextResourceAction.setText(Messages.ControlFlowView_nextProcessActionNameText);
 868         fNextResourceAction.setToolTipText(Messages.ControlFlowView_nextProcessActionToolTipText);
 869     }
 870
 871     private void contributeToActionBars() {
 872         IActionBars bars = getViewSite().getActionBars();
 873         fillLocalToolBar(bars.getToolBarManager());
 874     }
 875
 876     private void fillLocalToolBar(IToolBarManager manager) {
 877         manager.add(fTimeGraphCombo.getTimeGraphViewer().getShowLegendAction());
 878         manager.add(new Separator());
 879         manager.add(fTimeGraphCombo.getTimeGraphViewer().getResetScaleAction());
 880         manager.add(fTimeGraphCombo.getTimeGraphViewer().getPreviousEventAction());
 881         manager.add(fTimeGraphCombo.getTimeGraphViewer().getNextEventAction());
 882         manager.add(fPreviousResourceAction);
 883         manager.add(fNextResourceAction);
 884         manager.add(fTimeGraphCombo.getTimeGraphViewer().getZoomInAction());
 885         manager.add(fTimeGraphCombo.getTimeGraphViewer().getZoomOutAction());
 886         manager.add(new Separator());
 887     }
 888 }