lttng/org.eclipse.tracecompass.lttng2.kernel.core/src/org/eclipse/tracecompass/internal/lttng2/kernel/core/analysis/graph/handlers/TraceEventHandlerStatedump.java

   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
  10 package org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.graph.handlers;
  11
  12 import org.eclipse.tracecompass.analysis.os.linux.core.model.HostThread;
  13 import org.eclipse.tracecompass.analysis.os.linux.core.trace.IKernelAnalysisEventLayout;
  14 import org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.graph.building.LttngKernelExecGraphProvider;
  15 import org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.graph.building.LttngKernelExecGraphProvider.ProcessStatus;
  16 import org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.graph.model.EventField;
  17 import org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.graph.model.LttngSystemModel;
  18 import org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.graph.model.LttngWorker;
  19 import org.eclipse.tracecompass.tmf.core.event.ITmfEvent;
  20
  21 /**
  22  * Handles the LTTng statedump events necessary for the initialization of the
  23  * system model
  24  *
  25  * @author Francis Giraldeau
  26  */
  27 public class TraceEventHandlerStatedump extends BaseHandler {
  28
  29     /**
  30      * Constructor
  31      *
  32      * @param provider
  33      *            The parent graph provider
  34      */
  35     public TraceEventHandlerStatedump(LttngKernelExecGraphProvider provider) {
  36         super(provider);
  37     }
  38
  39     @Override
  40     public void handleEvent(ITmfEvent event) {
  41         IKernelAnalysisEventLayout eventLayout = getProvider().getEventLayout(event.getTrace());
  42         LttngSystemModel system = getProvider().getSystem();
  43         String eventName = event.getName();
  44         if (!eventName.equals(eventLayout.eventStatedumpProcessState())) {
  45             return;
  46         }
  47
  48         Integer tid = EventField.getInt(event, eventLayout.fieldTid());
  49         String name = EventField.getOrDefault(event, eventLayout.fieldName(), Messages.TraceEventHandlerSched_UnknownThreadName);
  50         Integer status = EventField.getInt(event, eventLayout.fieldStatus());
  51
  52         String host = event.getTrace().getHostId();
  53         long ts = event.getTimestamp().getValue();
  54
  55         HostThread ht = new HostThread(host, tid);
  56         LttngWorker task = system.findWorker(ht);
  57         if (task == null) {
  58             task = new LttngWorker(ht, name, ts);
  59             system.addWorker(task);
  60         } else {
  61             task.setName(name);
  62         }
  63
  64         task.setStatus(ProcessStatus.getStatus(status));
  65     }
  66
  67 }