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