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annotate Implab/Diagnostics/TextFileListener.cs @ 209:a867536c68fc v2

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Bound promise to CancellationToken Added new states to ExecutionSate enum. Added Safe.Guard() method to handle cleanup of the result of the promise
author cin
date Wed, 16 Nov 2016 03:06:08 +0300
parents 8200ab154c8a
children 6efb77590b15
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1 using System;
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2 using System.IO;
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3 using System.Text;
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4
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5 namespace Implab.Diagnostics {
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6 public class TextFileListener: ListenerBase {
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7 readonly TextWriter m_textWriter;
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8 readonly object m_lock = new object();
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9
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10 public TextFileListener(string fileName) {
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11 m_textWriter = File.CreateText(fileName);
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12
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13 m_textWriter.WriteLine("LOG {0}", DateTime.Now);
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14 }
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16 #region implemented abstract members of ListenerBase
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17
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18 public override void Write(LogEventArgs args, object entry) {
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19 var msg = new StringBuilder();
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20 for (int i = 0; i < args.Operation.Level; i++)
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21 msg.Append(" ");
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22 msg.AppendFormat("[{0}]:{1}: {2}", args.ThreadId, args.Channel, entry);
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23
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24 lock (m_lock) {
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25 if (!IsDisposed) {
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26 // тут гарантировано еще не освобожден m_textWriter
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27 m_textWriter.WriteLine(msg);
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28 m_textWriter.Flush();
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29 }
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30 }
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31 }
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32
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33 #endregion
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34
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35 protected override void Dispose(bool disposing) {
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36 base.Dispose(disposing);
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37 if (disposing) {
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38 // IsDisposed = true
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39 lock (m_lock) {
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40 Safe.Dispose(m_textWriter);
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41 }
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42 }
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43 }
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46 }
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47 }