/*******************************************************************************
* 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) {
int syscallQuark = ssq.optQuarkRelative(entry.getThreadQuark(), Attributes.SYSTEM_CALL);
if (syscallQuark == ITmfStateSystem.INVALID_ATTRIBUTE) {
return retMap;
}
try {
ITmfStateInterval value = ssq.querySingleState(event.getTime(), syscallQuark);
if (!value.getStateValue().isNull()) {
ITmfStateValue state = value.getStateValue();
retMap.put(Messages.ControlFlowView_attributeSyscallName, state.toString());
}
} catch (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;
}
int syscallQuark = ss.optQuarkRelative(entry.getThreadQuark(), Attributes.SYSTEM_CALL);
if (syscallQuark == ITmfStateSystem.INVALID_ATTRIBUTE) {
return;
}
try {
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 (TimeRangeException e) {
Activator.getDefault().logError("Error in ControlFlowPresentationProvider", e); //$NON-NLS-1$
} catch (StateSystemDisposedException e) {
/* Ignored */
}
}
}