/*******************************************************************************
* Copyright (c) 2015 Ericsson
*
* 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:
* Matthew Khouzam - Initial API and implementation
*******************************************************************************/
package org.eclipse.tracecompass.internal.analysis.os.linux.core.kernel.handlers;
import org.eclipse.tracecompass.analysis.os.linux.core.trace.IKernelAnalysisEventLayout;
import org.eclipse.tracecompass.internal.analysis.os.linux.core.kernel.Attributes;
import org.eclipse.tracecompass.statesystem.core.ITmfStateSystemBuilder;
import org.eclipse.tracecompass.statesystem.core.exceptions.AttributeNotFoundException;
import org.eclipse.tracecompass.statesystem.core.statevalue.ITmfStateValue;
import org.eclipse.tracecompass.statesystem.core.statevalue.TmfStateValue;
import org.eclipse.tracecompass.tmf.core.event.ITmfEvent;
import org.eclipse.tracecompass.tmf.core.event.ITmfEventField;
/**
* Set Prio handler
*/
public class PiSetprioHandler extends KernelEventHandler {
/**
* Constructor
* @param layout event layout
*/
public PiSetprioHandler(IKernelAnalysisEventLayout layout) {
super(layout);
}
@Override
public void handleEvent(ITmfStateSystemBuilder ss, ITmfEvent event) throws AttributeNotFoundException {
ITmfEventField content = event.getContent();
Integer cpu = KernelEventHandlerUtils.getCpu(event);
Integer tid = ((Long) content.getField(getLayout().fieldTid()).getValue()).intValue();
Integer prio = ((Long) content.getField(getLayout().fieldNewPrio()).getValue()).intValue();
String threadAttributeName = Attributes.buildThreadAttributeName(tid, cpu);
if (threadAttributeName == null) {
return;
}
Integer updateThreadNode = ss.getQuarkRelativeAndAdd(KernelEventHandlerUtils.getNodeThreads(ss), threadAttributeName);
/* Set the current prio for the new process */
int quark = ss.getQuarkRelativeAndAdd(updateThreadNode, Attributes.PRIO);
ITmfStateValue value = TmfStateValue.newValueInt(prio);
ss.modifyAttribute(KernelEventHandlerUtils.getTimestamp(event), value, quark);
}
}