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1 | /******************************************************************************* |
2 | * Copyright (c) 2015 École Polytechnique de Montréal | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials are | |
5 | * made available under the terms of the Eclipse Public License v1.0 which | |
6 | * accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | * | |
9 | * Contributors: | |
10 | * Geneviève Bastien - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
13 | package org.eclipse.tracecompass.analysis.os.linux.core.kernelanalysis; | |
14 | ||
15 | import org.eclipse.jdt.annotation.Nullable; | |
16 | import org.eclipse.tracecompass.analysis.os.linux.core.event.aspect.LinuxTidAspect; | |
17 | import org.eclipse.tracecompass.tmf.core.event.ITmfEvent; | |
18 | import org.eclipse.tracecompass.tmf.core.event.aspect.TmfCpuAspect; | |
19 | import org.eclipse.tracecompass.tmf.core.trace.TmfTraceUtils; | |
20 | ||
21 | /** | |
22 | * This aspect finds the ID of the thread running from this event using the | |
6d16f5a9 | 23 | * {@link KernelAnalysisModule}. |
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24 | * |
25 | * @author Geneviève Bastien | |
dbc7991d | 26 | * @since 1.0 |
312f397a | 27 | */ |
9049e763 AM |
28 | public final class KernelTidAspect extends LinuxTidAspect { |
29 | ||
30 | /** The singleton instance */ | |
31 | public static final KernelTidAspect INSTANCE = new KernelTidAspect(); | |
32 | ||
33 | private KernelTidAspect() { | |
34 | } | |
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35 | |
36 | @Override | |
37 | public @Nullable Integer resolve(ITmfEvent event) { | |
38 | /* Find the CPU this event is run on */ | |
b3867ecc | 39 | Integer cpu = TmfTraceUtils.resolveIntEventAspectOfClassForEvent(event.getTrace(), |
312f397a | 40 | TmfCpuAspect.class, event); |
b3867ecc | 41 | if (cpu == null) { |
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42 | return null; |
43 | } | |
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44 | |
45 | /* Find the analysis module for the trace */ | |
6d16f5a9 AM |
46 | KernelAnalysisModule analysis = TmfTraceUtils.getAnalysisModuleOfClass(event.getTrace(), |
47 | KernelAnalysisModule.class, KernelAnalysisModule.ID); | |
312f397a GB |
48 | if (analysis == null) { |
49 | return null; | |
50 | } | |
51 | Integer tid = KernelThreadInformationProvider.getThreadOnCpu( | |
52 | analysis, cpu, event.getTimestamp().getValue()); | |
53 | if (tid != null) { | |
54 | return tid; | |
55 | } | |
56 | return null; | |
57 | } | |
58 | ||
59 | } |