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

   1 /*******************************************************************************
   2  * Copyright (c) 2012, 2014 Ericsson, École Polytechnique de Montréal
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Patrick Tasse - Initial API and implementation
  11  *   Geneviève Bastien - Move code to provide base classes for time graph view
  12  *******************************************************************************/
  13
  14 package org.eclipse.linuxtools.internal.lttng2.kernel.ui.views.controlflow;
  15
  16 import java.util.LinkedHashMap;
  17 import java.util.List;
  18 import java.util.Map;
  19
  20 import org.eclipse.linuxtools.internal.lttng2.kernel.core.Attributes;
  21 import org.eclipse.linuxtools.internal.lttng2.kernel.core.StateValues;
  22 import org.eclipse.linuxtools.internal.lttng2.kernel.ui.Activator;
  23 import org.eclipse.linuxtools.internal.lttng2.kernel.ui.Messages;
  24 import org.eclipse.linuxtools.lttng2.kernel.core.analysis.LttngKernelAnalysisModule;
  25 import org.eclipse.linuxtools.tmf.core.exceptions.AttributeNotFoundException;
  26 import org.eclipse.linuxtools.tmf.core.exceptions.StateSystemDisposedException;
  27 import org.eclipse.linuxtools.tmf.core.exceptions.StateValueTypeException;
  28 import org.eclipse.linuxtools.tmf.core.exceptions.TimeRangeException;
  29 import org.eclipse.linuxtools.tmf.core.interval.ITmfStateInterval;
  30 import org.eclipse.linuxtools.tmf.core.statesystem.ITmfStateSystem;
  31 import org.eclipse.linuxtools.tmf.core.statevalue.ITmfStateValue;
  32 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.StateItem;
  33 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.TimeGraphPresentationProvider;
  34 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ITimeEvent;
  35 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.TimeEvent;
  36 import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets.Utils;
  37 import org.eclipse.swt.SWT;
  38 import org.eclipse.swt.graphics.GC;
  39 import org.eclipse.swt.graphics.RGB;
  40 import org.eclipse.swt.graphics.Rectangle;
  41
  42 /**
  43  * Presentation provider for the control flow view
  44  */
  45 public class ControlFlowPresentationProvider extends TimeGraphPresentationProvider {
  46
  47     private enum State {
  48         UNKNOWN        (new RGB(100, 100, 100)),
  49         WAIT_BLOCKED   (new RGB(200, 200, 0)),
  50         WAIT_FOR_CPU   (new RGB(200, 100, 0)),
  51         USERMODE       (new RGB(0,   200, 0)),
  52         SYSCALL        (new RGB(0,     0, 200)),
  53         INTERRUPTED    (new RGB(200,   0, 100));
  54
  55         public final RGB rgb;
  56
  57         private State(RGB rgb) {
  58             this.rgb = rgb;
  59         }
  60
  61     }
  62
  63     /**
  64      * Default constructor
  65      */
  66     public ControlFlowPresentationProvider() {
  67         super(Messages.ControlFlowView_stateTypeName);
  68     }
  69
  70     private static State[] getStateValues() {
  71         return State.values();
  72     }
  73
  74     @Override
  75     public StateItem[] getStateTable() {
  76         State[] states = getStateValues();
  77         StateItem[] stateTable = new StateItem[states.length];
  78         for (int i = 0; i < stateTable.length; i++) {
  79             State state = states[i];
  80             stateTable[i] = new StateItem(state.rgb, state.toString());
  81         }
  82         return stateTable;
  83     }
  84
  85     @Override
  86     public int getStateTableIndex(ITimeEvent event) {
  87         if (event instanceof TimeEvent && ((TimeEvent) event).hasValue()) {
  88             int status = ((TimeEvent) event).getValue();
  89             return getMatchingState(status).ordinal();
  90         }
  91         return TRANSPARENT;
  92     }
  93
  94     @Override
  95     public String getEventName(ITimeEvent event) {
  96         if (event instanceof TimeEvent) {
  97             TimeEvent ev = (TimeEvent) event;
  98             if (ev.hasValue()) {
  99                 return getMatchingState(ev.getValue()).toString();
 100             }
 101         }
 102         return Messages.ControlFlowView_multipleStates;
 103     }
 104
 105     private static State getMatchingState(int status) {
 106         switch (status) {
 107         case StateValues.PROCESS_STATUS_WAIT_BLOCKED:
 108             return State.WAIT_BLOCKED;
 109         case StateValues.PROCESS_STATUS_WAIT_FOR_CPU:
 110             return State.WAIT_FOR_CPU;
 111         case StateValues.PROCESS_STATUS_RUN_USERMODE:
 112             return State.USERMODE;
 113         case StateValues.PROCESS_STATUS_RUN_SYSCALL:
 114             return State.SYSCALL;
 115         case StateValues.PROCESS_STATUS_INTERRUPTED:
 116             return State.INTERRUPTED;
 117         default:
 118             return State.UNKNOWN;
 119         }
 120     }
 121
 122     @Override
 123     public Map<String, String> getEventHoverToolTipInfo(ITimeEvent event) {
 124         Map<String, String> retMap = new LinkedHashMap<>();
 125         if (!(event instanceof TimeEvent) || !((TimeEvent) event).hasValue() ||
 126                 !(event.getEntry() instanceof ControlFlowEntry)) {
 127             return retMap;
 128         }
 129         ControlFlowEntry entry = (ControlFlowEntry) event.getEntry();
 130         LttngKernelAnalysisModule module = entry.getTrace().getAnalysisModuleOfClass(LttngKernelAnalysisModule.class, LttngKernelAnalysisModule.ID);
 131         if (module == null) {
 132             return retMap;
 133         }
 134         ITmfStateSystem ssq = module.getStateSystem();
 135         if (ssq == null) {
 136             return retMap;
 137         }
 138         int tid = entry.getThreadId();
 139
 140         try {
 141             // Find every CPU first, then get the current thread
 142             int cpusQuark = ssq.getQuarkAbsolute(Attributes.CPUS);
 143             List<Integer> cpuQuarks = ssq.getSubAttributes(cpusQuark, false);
 144             for (Integer cpuQuark : cpuQuarks) {
 145                 int currentThreadQuark = ssq.getQuarkRelative(cpuQuark, Attributes.CURRENT_THREAD);
 146                 ITmfStateInterval interval = ssq.querySingleState(event.getTime(), currentThreadQuark);
 147                 if (!interval.getStateValue().isNull()) {
 148                     ITmfStateValue state = interval.getStateValue();
 149                     int currentThreadId = state.unboxInt();
 150                     if (tid == currentThreadId) {
 151                         retMap.put(Messages.ControlFlowView_attributeCpuName, ssq.getAttributeName(cpuQuark));
 152                         break;
 153                     }
 154                 }
 155             }
 156
 157         } catch (AttributeNotFoundException | TimeRangeException | StateValueTypeException e) {
 158             Activator.getDefault().logError("Error in ControlFlowPresentationProvider", e); //$NON-NLS-1$
 159         } catch (StateSystemDisposedException e) {
 160             /* Ignored */
 161         }
 162         int status = ((TimeEvent) event).getValue();
 163         if (status == StateValues.PROCESS_STATUS_RUN_SYSCALL) {
 164             try {
 165                 int syscallQuark = ssq.getQuarkRelative(entry.getThreadQuark(), Attributes.SYSTEM_CALL);
 166                 ITmfStateInterval value = ssq.querySingleState(event.getTime(), syscallQuark);
 167                 if (!value.getStateValue().isNull()) {
 168                     ITmfStateValue state = value.getStateValue();
 169                     retMap.put(Messages.ControlFlowView_attributeSyscallName, state.toString());
 170                 }
 171
 172             } catch (AttributeNotFoundException | TimeRangeException e) {
 173                 Activator.getDefault().logError("Error in ControlFlowPresentationProvider", e); //$NON-NLS-1$
 174             } catch (StateSystemDisposedException e) {
 175                 /* Ignored */
 176             }
 177         }
 178
 179         return retMap;
 180     }
 181
 182     @Override
 183     public void postDrawEvent(ITimeEvent event, Rectangle bounds, GC gc) {
 184         if (bounds.width <= gc.getFontMetrics().getAverageCharWidth()) {
 185             return;
 186         }
 187         if (!(event instanceof TimeEvent)) {
 188             return;
 189         }
 190         ControlFlowEntry entry = (ControlFlowEntry) event.getEntry();
 191         LttngKernelAnalysisModule module = entry.getTrace().getAnalysisModuleOfClass(LttngKernelAnalysisModule.class, LttngKernelAnalysisModule.ID);
 192         if (module == null) {
 193             return;
 194         }
 195         ITmfStateSystem ss = module.getStateSystem();
 196         if (ss == null) {
 197             return;
 198         }
 199         int status = ((TimeEvent) event).getValue();
 200
 201         if (status != StateValues.PROCESS_STATUS_RUN_SYSCALL) {
 202             return;
 203         }
 204         try {
 205             int syscallQuark = ss.getQuarkRelative(entry.getThreadQuark(), Attributes.SYSTEM_CALL);
 206             ITmfStateInterval value = ss.querySingleState(event.getTime(), syscallQuark);
 207             if (!value.getStateValue().isNull()) {
 208                 ITmfStateValue state = value.getStateValue();
 209                 gc.setForeground(gc.getDevice().getSystemColor(SWT.COLOR_WHITE));
 210                 Utils.drawText(gc, state.toString().substring(4), bounds.x, bounds.y - 2, bounds.width, true, true);
 211             }
 212         } catch (AttributeNotFoundException | TimeRangeException e) {
 213             Activator.getDefault().logError("Error in ControlFlowPresentationProvider", e); //$NON-NLS-1$
 214         } catch (StateSystemDisposedException e) {
 215             /* Ignored */
 216         }
 217     }
 218 }