implab/ImplabNet Files · Implab/Diagnostics/TextFileListener.cs

DRAFT: refactoring, adding cancelation token

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             TextFileListener.cs
        
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             / Implab / Diagnostics / TextFileListener.cs
          
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      using System;

      using System.IO;

      using System.Text;

      namespace Implab.Diagnostics {

          public class TextFileListener: ListenerBase {

              readonly TextWriter m_textWriter;

              public TextFileListener(string fileName) {

                  m_textWriter = File.CreateText(fileName);

                  m_textWriter.WriteLine("LOG {0}", DateTime.Now);

              }

              #region implemented abstract members of ListenerBase

              public override void Write(LogEventArgs args, object entry) {

                  var msg = new StringBuilder();

                  for (int i = 0; i < args.Operation.Level; i++)

                      msg.Append("  ");

                  msg.AppendFormat("[{0}]:{1}: {2}", args.ThreadId, args.ChannelName, entry);

                  lock (m_textWriter) {

                      if (!IsDisposed) {

                          // тут гарантировано еще не освобожден m_textWriter

                          m_textWriter.WriteLine(msg);

                          m_textWriter.Flush();

                      }

                  }

              }

              #endregion

              protected override void Dispose(bool disposing) {

                  base.Dispose(disposing);

                  if (disposing) {

                      // IsDisposed = true

                      lock (m_textWriter) {

                          Safe.Dispose(m_textWriter);

                      }

                  }

              }

          }

      }

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				using System;
				using System.IO;
				using System.Text;

				namespace Implab.Diagnostics {
				public class TextFileListener: ListenerBase {
				readonly TextWriter m_textWriter;

				public TextFileListener(string fileName) {
				m_textWriter = File.CreateText(fileName);

				m_textWriter.WriteLine("LOG {0}", DateTime.Now);
				}

				#region implemented abstract members of ListenerBase

				public override void Write(LogEventArgs args, object entry) {
				var msg = new StringBuilder();
				for (int i = 0; i < args.Operation.Level; i++)
				msg.Append(" ");
				msg.AppendFormat("[{0}]:{1}: {2}", args.ThreadId, args.ChannelName, entry);

				lock (m_textWriter) {
				if (!IsDisposed) {
				// тут гарантировано еще не освобожден m_textWriter
				m_textWriter.WriteLine(msg);
				m_textWriter.Flush();
				}
				}
				}

				#endregion

				protected override void Dispose(bool disposing) {
				base.Dispose(disposing);
				if (disposing) {
				// IsDisposed = true
				lock (m_textWriter) {
				Safe.Dispose(m_textWriter);
				}
				}
				}


				}
				}