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1 | /******************************************************************************* |
2 | * Copyright (c) 2015 Ericsson | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials | |
5 | * are made available under the terms of the Eclipse Public License v1.0 | |
6 | * which accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | * | |
9 | * Contributors: | |
10 | * Matthew Khouzam - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
13 | package org.lttng.scope.lttng.kernel.core.analysis.os.handlers.internal; | |
14 | ||
15 | import org.eclipse.tracecompass.tmf.core.event.ITmfEvent; | |
16 | import org.lttng.scope.lttng.kernel.core.analysis.os.Attributes; | |
17 | import org.lttng.scope.lttng.kernel.core.trace.layout.ILttngKernelEventLayout; | |
18 | ||
19 | import ca.polymtl.dorsal.libdelorean.ITmfStateSystemBuilder; | |
20 | import ca.polymtl.dorsal.libdelorean.exceptions.AttributeNotFoundException; | |
21 | ||
22 | /** | |
23 | * Process free event handler | |
24 | */ | |
25 | public class ProcessFreeHandler extends KernelEventHandler { | |
26 | ||
27 | /** | |
28 | * Constructor | |
29 | * | |
30 | * @param layout | |
31 | * event layout | |
32 | */ | |
33 | public ProcessFreeHandler(ILttngKernelEventLayout layout) { | |
34 | super(layout); | |
35 | } | |
36 | ||
37 | @Override | |
38 | public void handleEvent(ITmfStateSystemBuilder ss, ITmfEvent event) throws AttributeNotFoundException { | |
39 | ||
40 | Integer cpu = KernelEventHandlerUtils.getCpu(event); | |
41 | Integer tid = ((Long) event.getContent().getField(getLayout().fieldTid()).getValue()).intValue(); | |
42 | ||
43 | String threadAttributeName = Attributes.buildThreadAttributeName(tid, cpu); | |
44 | if (threadAttributeName == null) { | |
45 | return; | |
46 | } | |
47 | ||
48 | /* | |
49 | * Remove the process and all its sub-attributes from the current state | |
50 | */ | |
51 | int quark = ss.getQuarkRelativeAndAdd(KernelEventHandlerUtils.getNodeThreads(ss), threadAttributeName); | |
52 | ss.removeAttribute(KernelEventHandlerUtils.getTimestamp(event), quark); | |
53 | } | |
54 | } |