annotate Implab/Diagnostics/LogicalOperation.cs @ 239:eedf4d834e67 v2

fix
author cin
date Wed, 13 Dec 2017 19:54:45 +0300
parents 4c0e5ef99986
children
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1 using System;
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2
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3 namespace Implab.Diagnostics {
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4 public class LogicalOperation {
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5 public static readonly LogicalOperation EMPTY = new LogicalOperation("__EMPTY__", null);
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6
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7 readonly LogicalOperation m_parent;
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8 readonly string m_name;
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9 readonly int m_level;
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10 readonly int m_timestamp;
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11
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12 public LogicalOperation()
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13 : this(null, null) {
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14 }
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15
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16 public LogicalOperation(string name, LogicalOperation parent) {
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17 m_name = name ?? String.Empty;
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18 m_parent = parent;
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19
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20 m_level = parent == null ? 0 : parent.Level + 1;
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21 m_timestamp = Environment.TickCount;
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22 }
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23
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24 public int Duration {
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25 get {
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26 var dt = Environment.TickCount - m_timestamp;
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27 return dt < 0 ? int.MaxValue + dt : dt; // handle overflow
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28 }
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29 }
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30
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31 public LogicalOperation Parent {
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32 get {
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33 return m_parent;
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34 }
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35 }
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36
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37 public int Level {
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38 get { return m_level; }
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39 }
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40
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41 public string Name {
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42 get { return m_name; }
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43 }
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44 }
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45 }