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using System;
using System.Net;
using System.Threading;
using Pfz.Threading;
namespace Pfz.Remoting
{
/// <summary>
/// This is a listener that uses MemoryMappedFiles for local communication and
/// Tcp/Ip for remote communications.
/// </summary>
public sealed class HybridChannellerListener:
ThreadSafeExceptionAwareDisposable,
IChannellerListener
{
private ChannellerListener _tcp;
private MmfChannellerListener _mmf;
private int _bufferLength;
private ManagedAutoResetEvent _event = new ManagedAutoResetEvent();
private ManagedManualResetEvent _event2 = new ManagedManualResetEvent();
/// <summary>
/// Creates a new HibrydChanneller on the given port and using the given bufferLengths.
/// </summary>
public HybridChannellerListener(int port, int bufferLength)
{
_bufferLength = bufferLength;
_tcp = new ChannellerListener(IPAddress.Any, port, bufferLength);
_mmf = new MmfChannellerListener("Pfz.Remoting.HybridChanneller:" + port);
UnlimitedThreadPool.Run(_RunMmf);
UnlimitedThreadPool.Run(_RunTcp);
}
/// <summary>
/// Releases the Tcp/Ip and MemoryMappedFile listeners.
/// </summary>
protected override void Dispose(bool disposing)
{
if (disposing)
{
Disposer.Dispose(ref _tcp);
Disposer.Dispose(ref _mmf);
_result = null;
Disposer.Dispose(ref _event);
Disposer.Dispose(ref _event2);
}
base.Dispose(disposing);
}
private IChanneller _result;
private object _tryAcceptLock = new object();
/// <summary>
/// Accepts a new channel, be it local or remote.
/// </summary>
public IChanneller TryAccept()
{
CheckUndisposed();
lock(_tryAcceptLock)
{
var localEvent = _event;
if (localEvent == null)
return null;
localEvent.WaitOne();
var result =_result;
var event2 = _event2;
if (event2 == null)
return null;
_event2.Set();
return result;
}
}
private object _resultLock = new object();
private void _RunTcp()
{
try
{
var event2 = _event2;
var localEvent = _event;
if (event2 == null || localEvent == null)
return;
while (true)
{
var result = _tcp.TryAccept();
if (result == null)
{
Dispose();
return;
}
lock (_resultLock)
{
event2.Reset();
_result = result;
localEvent.Set();
event2.WaitOne();
}
}
}
catch(Exception exception)
{
Dispose(exception);
}
}
private void _RunMmf()
{
try
{
var event2 = _event2;
var localEvent = _event;
if (event2 == null || localEvent == null)
return;
while (true)
{
var result = _mmf.TryAccept();
if (result == null)
{
Dispose();
return;
}
result.ChannelBufferLength = _bufferLength;
lock (_resultLock)
{
event2.Reset();
_result = result;
localEvent.Set();
event2.WaitOne();
}
}
}
catch(Exception exception)
{
Dispose(exception);
}
}
}
}
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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).