projects / deliverable / tracecompass.git / blame
| Commit | Line | Data |
|---|---|---|
| 451ba2f7 AM |
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.StateValues; | |
| 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 | import ca.polymtl.dorsal.libdelorean.statevalue.ITmfStateValue; | |
| 22 | ||
| 23 | /** | |
| 24 | * Soft Irq Entry handler | |
| 25 | */ | |
| 26 | public class SoftIrqEntryHandler extends KernelEventHandler { | |
| 27 | ||
| 28 | /** | |
| 29 | * Constructor | |
| 30 | * | |
| 31 | * @param layout | |
| 32 | * event layout | |
| 33 | */ | |
| 34 | public SoftIrqEntryHandler(ILttngKernelEventLayout layout) { | |
| 35 | super(layout); | |
| 36 | } | |
| 37 | ||
| 38 | @Override | |
| 39 | public void handleEvent(ITmfStateSystemBuilder ss, ITmfEvent event) throws AttributeNotFoundException { | |
| 40 | Integer cpu = KernelEventHandlerUtils.getCpu(event); | |
| 41 | if (cpu == null) { | |
| 42 | return; | |
| 43 | } | |
| 44 | ||
| 45 | long timestamp = KernelEventHandlerUtils.getTimestamp(event); | |
| 46 | Integer softIrqId = ((Long) event.getContent().getField(getLayout().fieldVec()).getValue()).intValue(); | |
| 47 | int currentCPUNode = KernelEventHandlerUtils.getCurrentCPUNode(cpu, ss); | |
| 48 | int currentThreadNode = KernelEventHandlerUtils.getCurrentThreadNode(cpu, ss); | |
| 49 | ||
| 50 | /* | |
| 51 | * Mark this SoftIRQ as active in the resource tree. | |
| 52 | */ | |
| 53 | int quark = ss.getQuarkRelativeAndAdd(KernelEventHandlerUtils.getNodeSoftIRQs(cpu, ss), softIrqId.toString()); | |
| 54 | ITmfStateValue value = StateValues.CPU_STATUS_SOFTIRQ_VALUE; | |
| 55 | ss.modifyAttribute(timestamp, value, quark); | |
| 56 | ||
| 57 | /* Change the status of the running process to interrupted */ | |
| 58 | value = StateValues.PROCESS_STATUS_INTERRUPTED_VALUE; | |
| 59 | ss.modifyAttribute(timestamp, value, currentThreadNode); | |
| 60 | ||
| 61 | /* Change the status of the CPU to interrupted */ | |
| 62 | value = StateValues.CPU_STATUS_SOFTIRQ_VALUE; | |
| 63 | ss.modifyAttribute(timestamp, value, currentCPUNode); | |
| 64 | } | |
| 65 | } |