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/**********************************************************************
* Copyright (c) 2014 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:
* Bernd Hufmann - Initial API and implementation
* Geneviève Bastien - Create and use base class for XY plots
**********************************************************************/
package org.eclipse.linuxtools.internal.lttng2.ust.ui.views.memusage;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.linuxtools.internal.lttng2.ust.core.memoryusage.UstMemoryStrings;
import org.eclipse.linuxtools.internal.tmf.core.Activator;
import org.eclipse.linuxtools.lttng2.ust.core.analysis.memory.UstMemoryAnalysisModule;
import org.eclipse.linuxtools.statesystem.core.ITmfStateSystem;
import org.eclipse.linuxtools.statesystem.core.exceptions.AttributeNotFoundException;
import org.eclipse.linuxtools.statesystem.core.exceptions.StateSystemDisposedException;
import org.eclipse.linuxtools.statesystem.core.exceptions.StateValueTypeException;
import org.eclipse.linuxtools.statesystem.core.exceptions.TimeRangeException;
import org.eclipse.linuxtools.statesystem.core.statevalue.ITmfStateValue;
import org.eclipse.linuxtools.tmf.core.statesystem.TmfStateSystemAnalysisModule;
import org.eclipse.linuxtools.tmf.ui.viewers.xycharts.linecharts.TmfCommonXLineChartViewer;
import org.eclipse.swt.widgets.Composite;
/**
* Memory usage view
*
* @author Matthew Khouzam
*/
@SuppressWarnings("restriction")
public class MemoryUsageViewer extends TmfCommonXLineChartViewer {
private TmfStateSystemAnalysisModule fModule = null;
private final Map<Integer, double[]> fYValues = new HashMap<>();
private final Map<Integer, Integer> fMemoryQuarks = new HashMap<>();
private final Map<Integer, String> fSeriesName = new HashMap<>();
private static final int BYTES_TO_KB = 1024;
// Timeout between updates in the updateData thread
private static final long BUILD_UPDATE_TIMEOUT = 500;
/**
* Constructor
*
* @param parent
* parent view
*/
public MemoryUsageViewer(Composite parent) {
super(parent, Messages.MemoryUsageViewer_Title, Messages.MemoryUsageViewer_XAxis, Messages.MemoryUsageViewer_YAxis);
}
@Override
protected void initializeDataSource() {
if (getTrace() != null) {
fModule = getTrace().getAnalysisModuleOfClass(TmfStateSystemAnalysisModule.class, UstMemoryAnalysisModule.ID);
if (fModule == null) {
return;
}
fModule.schedule();
}
}
@Override
protected void updateData(long start, long end, int nb, IProgressMonitor monitor) {
try {
if (getTrace() == null || fModule == null) {
return;
}
fModule.waitForInitialization();
ITmfStateSystem ss = fModule.getStateSystem();
/* Don't wait for the module completion, when it's ready, we'll know */
if (ss == null) {
return;
}
double[] xvalues = getXAxis(start, end, nb);
setXAxis(xvalues);
boolean complete = false;
long currentEnd = start;
while (!complete && currentEnd < end) {
if (monitor.isCanceled()) {
return;
}
complete = ss.waitUntilBuilt(BUILD_UPDATE_TIMEOUT);
currentEnd = ss.getCurrentEndTime();
List<Integer> tidQuarks = ss.getSubAttributes(-1, false);
long traceStart = getStartTime();
long traceEnd = getEndTime();
long offset = this.getTimeOffset();
/* Initialize quarks and series names */
for (int quark : tidQuarks) {
fYValues.put(quark, new double[xvalues.length]);
fMemoryQuarks.put(quark, ss.getQuarkRelative(quark, UstMemoryStrings.UST_MEMORY_MEMORY_ATTRIBUTE));
int procNameQuark = ss.getQuarkRelative(quark, UstMemoryStrings.UST_MEMORY_PROCNAME_ATTRIBUTE);
try {
ITmfStateValue procnameValue = ss.querySingleState(start, procNameQuark).getStateValue();
String procname = new String();
if (!procnameValue.isNull()) {
procname = procnameValue.unboxStr();
}
fSeriesName.put(quark, new String(procname + ' ' + '(' + ss.getAttributeName(quark) + ')').trim());
} catch (TimeRangeException e) {
fSeriesName.put(quark, '(' + ss.getAttributeName(quark) + ')');
}
}
/*
* TODO: It should only show active threads in the time range. If a
* tid does not have any memory value (only 1 interval in the time
* range with value null or 0), then its series should not be
* displayed.
*/
double yvalue = 0.0;
for (int i = 0; i < xvalues.length; i++) {
if (monitor.isCanceled()) {
return;
}
double x = xvalues[i];
long time = (long) x + offset;
// make sure that time is in the trace range after double to
// long conversion
time = time < traceStart ? traceStart : time;
time = time > traceEnd ? traceEnd : time;
for (int quark : tidQuarks) {
try {
yvalue = ss.querySingleState(time, fMemoryQuarks.get(quark)).getStateValue().unboxLong() / BYTES_TO_KB;
fYValues.get(quark)[i] = yvalue;
} catch (TimeRangeException e) {
fYValues.get(quark)[i] = 0;
}
}
}
for (int quark : tidQuarks) {
setSeries(fSeriesName.get(quark), fYValues.get(quark));
}
updateDisplay();
}
} catch (AttributeNotFoundException | StateValueTypeException | StateSystemDisposedException e) {
Activator.logError("Error updating the data of the Memory usage view", e); //$NON-NLS-1$
}
}
}
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