lttng/org.lttng.scope.lttng.kernel.core/src/org/lttng/scope/lttng/kernel/core/views/timegraph/resources/ResourcesIrqModelProvider.java

   1 /*
   2  * Copyright (C) 2017 EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com>
   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.lttng.scope.lttng.kernel.core.views.timegraph.resources;
  11
  12 import static java.util.Objects.requireNonNull;
  13
  14 import java.util.Collections;
  15 import java.util.LinkedList;
  16 import java.util.List;
  17 import java.util.function.Function;
  18
  19 import org.lttng.scope.lttng.kernel.core.analysis.os.Attributes;
  20 import org.lttng.scope.lttng.kernel.core.views.timegraph.resources.elements.ResourcesIrqTreeElement;
  21 import org.lttng.scope.lttng.kernel.core.views.timegraph.resources.elements.ResourcesIrqTreeElement.IrqType;
  22 import org.lttng.scope.tmf2.views.core.timegraph.model.render.tree.TimeGraphTreeElement;
  23 import org.lttng.scope.tmf2.views.core.timegraph.model.render.tree.TimeGraphTreeRender;
  24
  25 import com.google.common.annotations.VisibleForTesting;
  26 import com.google.common.primitives.Ints;
  27
  28 import ca.polymtl.dorsal.libdelorean.ITmfStateSystem;
  29
  30 /**
  31  * View model for a Resources view showing IRQs and SoftIRQs.
  32  *
  33  * @author Alexandre Montplaisir
  34  */
  35 public class ResourcesIrqModelProvider extends ResourcesBaseModelProvider {
  36
  37     private static final String[] IRQS_QUARK_PATTERN = { Attributes.IRQS, "*" }; //$NON-NLS-1$
  38     private static final String[] SOFT_IRQS_QUARK_PATTERN = { Attributes.SOFT_IRQS, "*" }; //$NON-NLS-1$
  39
  40     /**
  41      * Get the tree element name for every cpu.
  42      */
  43     @VisibleForTesting
  44     public static final Function<TreeRenderContext, TimeGraphTreeRender> SS_TO_TREE_RENDER_FUNCTION = (treeContext) -> {
  45         ITmfStateSystem ss = treeContext.ss;
  46
  47         List<ResourcesIrqTreeElement> treeElems = new LinkedList<>();
  48         /* Create "IRQ *" children */
  49         ss.getQuarks(IRQS_QUARK_PATTERN).forEach(irqQuark -> {
  50             String name = ss.getAttributeName(irqQuark);
  51             Integer irqNumber = Ints.tryParse(name);
  52             if (irqNumber != null) {
  53                 treeElems.add(new ResourcesIrqTreeElement(IrqType.IRQ, irqNumber, irqQuark));
  54             }
  55         });
  56
  57         /* Create "SoftIRQ *" children */
  58         ss.getQuarks(SOFT_IRQS_QUARK_PATTERN).forEach(irqQuark -> {
  59             String name = ss.getAttributeName(irqQuark);
  60             Integer irqNumber = Ints.tryParse(name);
  61             if (irqNumber != null) {
  62                 treeElems.add(new ResourcesIrqTreeElement(IrqType.SOFTIRQ, irqNumber, irqQuark));
  63             }
  64         });
  65
  66         Collections.sort(treeElems, IRQ_SORTER);
  67         @SuppressWarnings("rawtypes")
  68         List treeElems2 = treeElems;
  69         TimeGraphTreeElement rootElement = new TimeGraphTreeElement(treeContext.traceName, treeElems2);
  70         return new TimeGraphTreeRender(rootElement);
  71     };
  72
  73     /**
  74      * Constructor
  75      */
  76     public ResourcesIrqModelProvider() {
  77         super(requireNonNull(Messages.resourcesIrqProviderName), SS_TO_TREE_RENDER_FUNCTION);
  78     }
  79
  80 }