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using System;
using System.IO;
using System.IO.Pipes;
using Pfz.Threading;
namespace Pfz.Remoting
{
/// <summary>
/// This class works as a TcpListener, but uses named pipes to work.
/// </summary>
public sealed class NamedPipeListener:
ThreadSafeDisposable,
IListener
{
private string fPipeName;
private NamedPipeServerStream fStream;
/// <summary>
/// Creates a new NamedPipeListener using the specified pipeName.
/// Do not put a server name, as this class must only be used for local
/// connections.
/// </summary>
public NamedPipeListener(string pipeName)
{
if (pipeName == null)
throw new ArgumentNullException("pipeName");
fPipeName = pipeName + '_';
string listenerName = fPipeName + "Listener";
fStream = new NamedPipeServerStream(listenerName, PipeDirection.Out, 1, PipeTransmissionMode.Byte, PipeOptions.WriteThrough);
}
/// <summary>
/// Closes the listener stream.
/// This does not affect accepted streams.
/// </summary>
protected override void Dispose(bool disposing)
{
if (disposing)
{
var stream = fStream;
if (stream != null)
{
fStream = null;
stream.Close();
}
}
base.Dispose(disposing);
}
private int fCount = 0;
/// <summary>
/// Accepts a new connection and return the stream for it.
/// </summary>
public DuplexStream<NamedPipeServerStream> Accept(Box<object> connectionBox)
{
fCount++;
AbortSafe.Lock
(
DisposeLock,
delegate
{
CheckUndisposed();
fStream.WaitForConnection();
}
);
DuplexStream<NamedPipeServerStream> result;
try
{
string newName = fPipeName + fCount;
result = DuplexStream.CreateNamedPipeServer(newName, false);
var bytes = BitConverter.GetBytes(fCount);
fStream.Write(bytes, 0, 4);
fStream.Flush();
fStream.WaitForPipeDrain();
}
finally
{
fStream.Disconnect();
fStream.Dispose();
string listenerName = fPipeName + "Listener";
fStream = new NamedPipeServerStream(listenerName, PipeDirection.Out, 1, PipeTransmissionMode.Byte, PipeOptions.WriteThrough);
}
result.ReadStream.WaitForConnection();
result.WriteStream.WaitForConnection();
if (connectionBox != null)
connectionBox.Value = result;
return result;
}
/// <summary>
/// Creates a NamedPipeChanneller over the given stream.
/// </summary>
public IChanneller CreateChanneller(Stream stream, EventHandler<ChannelCreatedEventArgs> remoteChannelCreated)
{
return new NamedPipeChanneller(stream, remoteChannelCreated);
}
#region IListener Members
Stream IListener.Accept(Box<object> connectionBox)
{
return Accept(connectionBox);
}
void IListener.Start()
{
}
#endregion
}
}
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I started to program computers when I was 11 years old, as a hobbyist, programming in AMOS Basic and Blitz Basic for Amiga.
At 12 I had my first try with assembler, but it was too difficult at the time. Then, in the same year, I learned C and, after learning C, I was finally able to learn assembler (for Motorola 680x0).
Not sure, but probably between 12 and 13, I started to learn C++. I always programmed "in an object oriented way", but using function pointers instead of virtual methods.
At 15 I started to learn Pascal at school and to use Delphi. At 16 I started my first internship (using Delphi). At 18 I started to work professionally using C++ and since then I've developed my programming skills as a professional developer in C++ and C#, generally creating libraries that help other developers do their work easier, faster and with less errors.
Want more info or simply want to contact me?
Take a look at:
http://paulozemek.azurewebsites.net/
Or e-mail me at: paulozemek@outlook.com
Codeproject MVP 2012, 2015 & 2016
Microsoft MVP 2013-2014 (in October 2014 I started working at Microsoft, so I can't be a Microsoft MVP anymore).