--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2012, 2015 Ericsson, École Polytechnique de Montréal
+ *
+ * All rights reserved. This program and the accompanying materials are
+ * made available under the terms of the Eclipse Public License v1.0 which
+ * accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * Patrick Tasse - Initial API and implementation
+ * Geneviève Bastien - Move code to provide base classes for time graph view
+ *******************************************************************************/
+
+package org.eclipse.tracecompass.internal.analysis.os.linux.ui.views.controlflow;
+
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.RGB;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.tracecompass.analysis.os.linux.core.kernel.KernelAnalysisModule;
+import org.eclipse.tracecompass.analysis.os.linux.core.kernel.StateValues;
+import org.eclipse.tracecompass.analysis.os.linux.core.trace.IKernelAnalysisEventLayout;
+import org.eclipse.tracecompass.analysis.os.linux.core.trace.IKernelTrace;
+import org.eclipse.tracecompass.internal.analysis.os.linux.core.kernel.Attributes;
+import org.eclipse.tracecompass.internal.analysis.os.linux.ui.Activator;
+import org.eclipse.tracecompass.internal.analysis.os.linux.ui.Messages;
+import org.eclipse.tracecompass.statesystem.core.ITmfStateSystem;
+import org.eclipse.tracecompass.statesystem.core.exceptions.AttributeNotFoundException;
+import org.eclipse.tracecompass.statesystem.core.exceptions.StateSystemDisposedException;
+import org.eclipse.tracecompass.statesystem.core.exceptions.StateValueTypeException;
+import org.eclipse.tracecompass.statesystem.core.exceptions.TimeRangeException;
+import org.eclipse.tracecompass.statesystem.core.interval.ITmfStateInterval;
+import org.eclipse.tracecompass.statesystem.core.statevalue.ITmfStateValue;
+import org.eclipse.tracecompass.tmf.core.statesystem.TmfStateSystemAnalysisModule;
+import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace;
+import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.StateItem;
+import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.TimeGraphPresentationProvider;
+import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.ITimeEvent;
+import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.NullTimeEvent;
+import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.TimeEvent;
+import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.widgets.Utils;
+
+/**
+ * Presentation provider for the control flow view
+ */
+public class ControlFlowPresentationProvider extends TimeGraphPresentationProvider {
+
+ private enum State {
+ UNKNOWN (new RGB(100, 100, 100)),
+ WAIT_UNKNOWN (new RGB(200, 200, 200)),
+ WAIT_BLOCKED (new RGB(200, 200, 0)),
+ WAIT_FOR_CPU (new RGB(200, 100, 0)),
+ USERMODE (new RGB(0, 200, 0)),
+ SYSCALL (new RGB(0, 0, 200)),
+ INTERRUPTED (new RGB(200, 0, 100));
+
+ public final RGB rgb;
+
+ private State(RGB rgb) {
+ this.rgb = rgb;
+ }
+
+ }
+
+ /**
+ * Average width of the characters used for state labels. Is computed in the
+ * first call to postDrawEvent(). Is null before that.
+ */
+ private Integer fAverageCharacterWidth = null;
+
+ /**
+ * Default constructor
+ */
+ public ControlFlowPresentationProvider() {
+ super(Messages.ControlFlowView_stateTypeName);
+ }
+
+ private static State[] getStateValues() {
+ return State.values();
+ }
+
+ @Override
+ public StateItem[] getStateTable() {
+ State[] states = getStateValues();
+ StateItem[] stateTable = new StateItem[states.length];
+ for (int i = 0; i < stateTable.length; i++) {
+ State state = states[i];
+ stateTable[i] = new StateItem(state.rgb, state.toString());
+ }
+ return stateTable;
+ }
+
+ @Override
+ public int getStateTableIndex(ITimeEvent event) {
+ if (event instanceof TimeEvent && ((TimeEvent) event).hasValue()) {
+ int status = ((TimeEvent) event).getValue();
+ return getMatchingState(status).ordinal();
+ }
+ if (event instanceof NullTimeEvent) {
+ return INVISIBLE;
+ }
+ return TRANSPARENT;
+ }
+
+ @Override
+ public String getEventName(ITimeEvent event) {
+ if (event instanceof TimeEvent) {
+ TimeEvent ev = (TimeEvent) event;
+ if (ev.hasValue()) {
+ return getMatchingState(ev.getValue()).toString();
+ }
+ }
+ return Messages.ControlFlowView_multipleStates;
+ }
+
+ private static State getMatchingState(int status) {
+ switch (status) {
+ case StateValues.PROCESS_STATUS_WAIT_UNKNOWN:
+ return State.WAIT_UNKNOWN;
+ case StateValues.PROCESS_STATUS_WAIT_BLOCKED:
+ return State.WAIT_BLOCKED;
+ case StateValues.PROCESS_STATUS_WAIT_FOR_CPU:
+ return State.WAIT_FOR_CPU;
+ case StateValues.PROCESS_STATUS_RUN_USERMODE:
+ return State.USERMODE;
+ case StateValues.PROCESS_STATUS_RUN_SYSCALL:
+ return State.SYSCALL;
+ case StateValues.PROCESS_STATUS_INTERRUPTED:
+ return State.INTERRUPTED;
+ default:
+ return State.UNKNOWN;
+ }
+ }
+
+ @Override
+ public Map<String, String> getEventHoverToolTipInfo(ITimeEvent event) {
+ Map<String, String> retMap = new LinkedHashMap<>();
+ if (!(event instanceof TimeEvent) || !((TimeEvent) event).hasValue() ||
+ !(event.getEntry() instanceof ControlFlowEntry)) {
+ return retMap;
+ }
+ ControlFlowEntry entry = (ControlFlowEntry) event.getEntry();
+ ITmfStateSystem ssq = TmfStateSystemAnalysisModule.getStateSystem(entry.getTrace(), KernelAnalysisModule.ID);
+ if (ssq == null) {
+ return retMap;
+ }
+ int tid = entry.getThreadId();
+
+ try {
+ // Find every CPU first, then get the current thread
+ int cpusQuark = ssq.getQuarkAbsolute(Attributes.CPUS);
+ List<Integer> cpuQuarks = ssq.getSubAttributes(cpusQuark, false);
+ for (Integer cpuQuark : cpuQuarks) {
+ int currentThreadQuark = ssq.getQuarkRelative(cpuQuark, Attributes.CURRENT_THREAD);
+ ITmfStateInterval interval = ssq.querySingleState(event.getTime(), currentThreadQuark);
+ if (!interval.getStateValue().isNull()) {
+ ITmfStateValue state = interval.getStateValue();
+ int currentThreadId = state.unboxInt();
+ if (tid == currentThreadId) {
+ retMap.put(Messages.ControlFlowView_attributeCpuName, ssq.getAttributeName(cpuQuark));
+ break;
+ }
+ }
+ }
+
+ } catch (AttributeNotFoundException | TimeRangeException | StateValueTypeException e) {
+ Activator.getDefault().logError("Error in ControlFlowPresentationProvider", e); //$NON-NLS-1$
+ } catch (StateSystemDisposedException e) {
+ /* Ignored */
+ }
+ int status = ((TimeEvent) event).getValue();
+ if (status == StateValues.PROCESS_STATUS_RUN_SYSCALL) {
+ try {
+ int syscallQuark = ssq.getQuarkRelative(entry.getThreadQuark(), Attributes.SYSTEM_CALL);
+ ITmfStateInterval value = ssq.querySingleState(event.getTime(), syscallQuark);
+ if (!value.getStateValue().isNull()) {
+ ITmfStateValue state = value.getStateValue();
+ retMap.put(Messages.ControlFlowView_attributeSyscallName, state.toString());
+ }
+
+ } catch (AttributeNotFoundException | TimeRangeException e) {
+ Activator.getDefault().logError("Error in ControlFlowPresentationProvider", e); //$NON-NLS-1$
+ } catch (StateSystemDisposedException e) {
+ /* Ignored */
+ }
+ }
+
+ return retMap;
+ }
+
+ @Override
+ public void postDrawEvent(ITimeEvent event, Rectangle bounds, GC gc) {
+ if (fAverageCharacterWidth == null) {
+ fAverageCharacterWidth = gc.getFontMetrics().getAverageCharWidth();
+ }
+ if (bounds.width <= fAverageCharacterWidth) {
+ return;
+ }
+ if (!(event instanceof TimeEvent)) {
+ return;
+ }
+ ControlFlowEntry entry = (ControlFlowEntry) event.getEntry();
+ ITmfStateSystem ss = TmfStateSystemAnalysisModule.getStateSystem(entry.getTrace(), KernelAnalysisModule.ID);
+ if (ss == null) {
+ return;
+ }
+ int status = ((TimeEvent) event).getValue();
+
+ if (status != StateValues.PROCESS_STATUS_RUN_SYSCALL) {
+ return;
+ }
+ try {
+ int syscallQuark = ss.getQuarkRelative(entry.getThreadQuark(), Attributes.SYSTEM_CALL);
+ ITmfStateInterval value = ss.querySingleState(event.getTime(), syscallQuark);
+ if (!value.getStateValue().isNull()) {
+ ITmfStateValue state = value.getStateValue();
+ gc.setForeground(gc.getDevice().getSystemColor(SWT.COLOR_WHITE));
+
+ /*
+ * Remove the "sys_" or "syscall_entry_" or similar from what we
+ * draw in the rectangle. This depends on the trace's event layout.
+ */
+ int beginIndex = 0;
+ ITmfTrace trace = entry.getTrace();
+ if (trace instanceof IKernelTrace) {
+ IKernelAnalysisEventLayout layout = ((IKernelTrace) trace).getKernelEventLayout();
+ beginIndex = layout.eventSyscallEntryPrefix().length();
+ }
+
+ Utils.drawText(gc, state.toString().substring(beginIndex), bounds.x, bounds.y, bounds.width, bounds.height, true, true);
+ }
+ } catch (AttributeNotFoundException | TimeRangeException e) {
+ Activator.getDefault().logError("Error in ControlFlowPresentationProvider", e); //$NON-NLS-1$
+ } catch (StateSystemDisposedException e) {
+ /* Ignored */
+ }
+ }
+}