annotate Implab/Diagnostics/TextFileListener.cs @ 187:dd4a3590f9c6 ref20160224

Reworked cancelation handling, if the cancel handler isn't specified the OperationCanceledException will be handled by the error handler Any unhandled OperationCanceledException will cause the promise cancelation
author cin
date Tue, 19 Apr 2016 17:35:20 +0300
parents 04d4c92d0f28
children d45bdf510514
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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
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9 public TextFileListener(string fileName) {
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10 m_textWriter = File.CreateText(fileName);
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12 m_textWriter.WriteLine("LOG {0}", DateTime.Now);
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13 }
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14
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15 #region implemented abstract members of ListenerBase
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16
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17 public override void Write(LogEventArgs args, object entry) {
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18 var msg = new StringBuilder();
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19 for (int i = 0; i < args.Operation.Level; i++)
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20 msg.Append(" ");
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21 msg.AppendFormat("[{0}]:{1}: {2}", args.ThreadId, args.ChannelName, entry);
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23 lock (m_textWriter) {
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24 if (!IsDisposed) {
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25 // тут гарантировано еще не освобожден m_textWriter
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26 m_textWriter.WriteLine(msg);
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27 m_textWriter.Flush();
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28 }
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29 }
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30 }
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31
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32 #endregion
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33
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34 protected override void Dispose(bool disposing) {
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35 base.Dispose(disposing);
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36 if (disposing) {
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37 // IsDisposed = true
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38 lock (m_textWriter) {
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39 Safe.Dispose(m_textWriter);
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40 }
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41 }
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42 }
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45 }
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46 }