Asynchronous I/O, some blocking on the main thread : Asynchronous Input Output « File Directory Stream « C# / CSharp Tutorial

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C# / CSharp Tutorial » File Directory Stream » Asynchronous Input Output 
15.39.2.Asynchronous I/O, some blocking on the main thread
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.IO;
using System.IO.Compression;
using System.Net;
using System.Net.Mail;
using System.Runtime.InteropServices;
using System.Text;

public class MainClass
{
    public static void Main()
    {
        using (Stream s = new FileStream("c:\\test.txt", FileMode.Open))
        {
            byte[] buffer = new byte[4096];
            int bytesRead;
            do
            {
                IAsyncResult ar = s.BeginRead(buffer, 0, buffer.Length, null, null);
                bytesRead = s.EndRead(ar);

            }
            while (bytesRead == buffer.Length);
        }
    }
}
15.39.Asynchronous Input Output
15.39.1.Asynchronous I/O
15.39.2.Asynchronous I/O, some blocking on the main thread
15.39.3.Async File Stream
15.39.4.Asynchronous IO with AsyncCallback
15.39.5.Async FileStream demo
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