analysis/org.eclipse.tracecompass.analysis.os.linux.core/src/org/eclipse/tracecompass/internal/analysis/os/linux/core/latency/SystemCall.java

   1 /*******************************************************************************
   2  * Copyright (c) 2015 EfficiOS Inc., Alexandre Montplaisir
   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.eclipse.tracecompass.internal.analysis.os.linux.core.latency;
  11
  12 import java.io.Serializable;
  13
  14 import org.eclipse.jdt.annotation.NonNull;
  15 import org.eclipse.tracecompass.segmentstore.core.ISegment;
  16
  17 /**
  18  * A linux kernel system call, represented as an {@link ISegment}.
  19  *
  20  * @author Alexandre Montplaisir
  21  * @since 2.0
  22  */
  23 public class SystemCall implements ISegment {
  24
  25     private static final long serialVersionUID = 1554494342105208730L;
  26
  27     /**
  28      * The subset of information that is available from the syscall entry event.
  29      */
  30     public static class InitialInfo implements Serializable {
  31
  32         private static final long serialVersionUID = -5009710718804983721L;
  33
  34         private final long fStartTime;
  35         private final String fName;
  36
  37         /**
  38          * @param startTime
  39          *            Start time of the system call
  40          * @param name
  41          *            Name of the system call
  42          */
  43         public InitialInfo(
  44                 long startTime,
  45                 String name) {
  46             fStartTime = startTime;
  47             fName = name;
  48         }
  49     }
  50
  51     private final InitialInfo fInfo;
  52     private final long fEndTime;
  53
  54     /**
  55      * @param info
  56      *            Initial information of the system call
  57      * @param endTime
  58      *            End time of the system call
  59      */
  60     public SystemCall(
  61             InitialInfo info,
  62             long endTime) {
  63         fInfo = info;
  64         fEndTime = endTime;
  65     }
  66
  67     @Override
  68     public long getStart() {
  69         return fInfo.fStartTime;
  70     }
  71
  72     @Override
  73     public long getEnd() {
  74         return fEndTime;
  75     }
  76
  77     /**
  78      * Get the name of the system call
  79      *
  80      * @return Name
  81      */
  82     public String getName() {
  83         return fInfo.fName;
  84     }
  85
  86     @Override
  87     public int compareTo(@NonNull ISegment o) {
  88         int ret = ISegment.super.compareTo(o);
  89         if (ret != 0) {
  90             return ret;
  91         }
  92         return toString().compareTo(o.toString());
  93     }
  94
  95     @Override
  96     public String toString() {
  97         return "Start Time = " + getStart() + //$NON-NLS-1$
  98                 "; End Time = " + getEnd() + //$NON-NLS-1$
  99                 "; Duration = " + getLength() + //$NON-NLS-1$
 100                 "; Name = " + getName(); //$NON-NLS-1$
 101     }
 102 }