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1 | /******************************************************************************* |
2 | * Copyright (c) 2016 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 | ||
10 | package org.lttng.scope.lttng.kernel.core.analysis.os.handlers.internal; | |
11 | ||
12 | import org.eclipse.tracecompass.tmf.core.event.ITmfEvent; | |
13 | import org.lttng.scope.lttng.kernel.core.trace.layout.ILttngKernelEventLayout; | |
14 | ||
15 | import ca.polymtl.dorsal.libdelorean.ITmfStateSystemBuilder; | |
16 | import ca.polymtl.dorsal.libdelorean.exceptions.AttributeNotFoundException; | |
17 | import ca.polymtl.dorsal.libdelorean.statevalue.TmfStateValue; | |
18 | ||
19 | /** | |
20 | * IPI Exit Handler | |
21 | * | |
22 | * @author Matthew Khouzam | |
23 | */ | |
24 | public class IPIExitHandler extends KernelEventHandler { | |
25 | ||
26 | /** | |
27 | * Constructor | |
28 | * | |
29 | * @param layout | |
30 | * event layout | |
31 | */ | |
32 | public IPIExitHandler(ILttngKernelEventLayout layout) { | |
33 | super(layout); | |
34 | } | |
35 | ||
36 | @Override | |
37 | public void handleEvent(ITmfStateSystemBuilder ss, ITmfEvent event) throws AttributeNotFoundException { | |
38 | Integer cpu = KernelEventHandlerUtils.getCpu(event); | |
39 | if (cpu == null) { | |
40 | return; | |
41 | } | |
42 | int currentThreadNode = KernelEventHandlerUtils.getCurrentThreadNode(cpu, ss); | |
43 | Integer irqId = ((Long) event.getContent().getField(getLayout().fieldIPIVector()).getValue()).intValue(); | |
44 | /* Put this IRQ back to inactive in the resource tree */ | |
45 | int quark = ss.getQuarkRelativeAndAdd(KernelEventHandlerUtils.getNodeIRQs(cpu, ss), irqId.toString()); | |
46 | TmfStateValue value = TmfStateValue.nullValue(); | |
47 | long timestamp = KernelEventHandlerUtils.getTimestamp(event); | |
48 | ss.modifyAttribute(timestamp, value, quark); | |
49 | ||
50 | /* Set the previous process back to running */ | |
51 | KernelEventHandlerUtils.setProcessToRunning(timestamp, currentThreadNode, ss); | |
52 | ||
53 | /* Set the CPU status back to running or "idle" */ | |
54 | KernelEventHandlerUtils.cpuExitInterrupt(timestamp, cpu, ss); | |
55 | } | |
56 | } |