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TCP/IP Sockets in C#: Practical Guide for Programmers (The Practical Guides)

By Michael J. Donahoo, Kenneth L. Calvert

"TCP/IP sockets in C# is a wonderful publication for somebody drawn to writing community functions utilizing Microsoft .Net frameworks. it's a particular mix of good written concise textual content and wealthy rigorously chosen set of operating examples. For the newbie of community programming, it is a stable beginning publication; nonetheless pros can also benefit from first-class convenient pattern code snippets and fabric on subject matters like message parsing and asynchronous programming."
Adarsh Khare, SDT, .Net Frameworks crew, Microsoft Corporation

The approval for the C# language and the .NET framework is ever emerging because of its ease of use, the broad classification libraries to be had within the .NET Framework, and the ubiquity of the Microsoft home windows working method, to call a number of benefits. TCP/IP Sockets in C# specializes in the Sockets API, the de facto typical for writing community purposes in any programming language. beginning with easy shopper and server courses that use TCP/IP (the net protocol suite), scholars and practitioners fast examine the fundamentals and stream directly to firsthand event with complicated issues together with non-blocking sockets, multiplexing, threads, asynchronous programming, and multicasting. Key community programming options akin to framing, functionality and deadlocks are illustrated via hands-on examples. utilizing a close but transparent, concise process, this booklet comprises a variety of code examples and centred discussions to supply a superb realizing of programming TCP/IP sockets in C#.

Features
*Tutorial-based guideline in key sockets programming thoughts complemented through a number of code examples all through
*Discussion strikes speedy into the C# Sockets API definition and code examples, fascinating in case you are looking to get up-to-speed quickly
*Important insurance of "under the hood" info that builders will locate precious while developing and utilizing a socket or a better point TCP type that makes use of sockets
*Includes end-of-chapter workouts to facilitate studying, in addition to pattern code to be had for obtain on the book’s spouse site

*Tutorial-based guide in key sockets programming concepts complemented by way of quite a few code examples all through

*Discussion strikes quick into the C# Sockets API definition and code examples, fascinating when you are looking to get up-to-speed quickly

*Important insurance of "under the hood" info that builders will locate helpful whilst growing and utilizing a socket or a better point TCP category that makes use of sockets

*Includes end-of-chapter routines to facilitate studying, in addition to pattern code on hand for obtain on the book's better half website

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Notice that this implementation works for small files, yet that there's a flaw that reasons impasse for giant files. (We speak about and proper this shortcoming in part five. 2. ) 6 extra subtle beneficial properties of HTTP, reminiscent of continual connections, are very common this day and function otherwise. one hundred forty bankruptcy four: past the fundamentals ■ Shutdown TranscodeServer TranscodeClient Closed determine four. three: Transcode Server protocol termination. As we pointed out prior, a few complicated performance is out there merely within the Socket type and never the better point socket sessions like TcpClient. The Shutdown() approach to the Socket classification is an instance of a characteristic that isn't at once obtainable within the TcpClient classification. besides the fact that, the TcpClient category does provide us entry to its underlying Socket example via its safe Socket estate. because the estate is secure, it could possibly in simple terms be accessed by means of extending the unique TcpClient type. we now have made up our minds to demonstrate this method the following by means of extending the TcpClient category to entry the Socket strategy Shutdown(). now we have created the TcpClientShutdown category with a view to do that. TcpClientShutdown. cs zero 1 2 three four five 6 7 eight nine 10 eleven 12 thirteen utilizing procedure; utilizing procedure. internet; utilizing process. web. Sockets; // For String // For IPEndPoint, EndPoint // For TcpClient, SocketShutdown type TcpClientShutdown : TcpClient { public TcpClientShutdown():base() {} public TcpClientShutdown(IPEndPoint localEP):base(localEP) {} public TcpClientShutdown(String server, int port):base(server, port) {} public void Shutdown(SocketShutdown ss) { // Invoke the Shutdown procedure at the underlying socket this. purchaser. Shutdown(ss); } ■ 14 15 sixteen 17 18 four. 6 final Connections 141 public EndPoint GetRemoteEndPoint() { // go back the RemoteEndPoint from the underlying socket go back this. customer. RemoteEndPoint; } } TcpClientShutdown. cs 1. expand the TcpClient classification: line four 2. expand the constructors: traces 6–8 Extending the constructors with the bottom key-phrase is needed. extra good judgment is also further yet isn't required. three. Shutdown(): strains 10–13 the recent user-defined Shutdown() strategy invokes the Socket approach to a similar identify by utilizing the customer estate. four. GetRemoteEndPoint(): traces 14–17 the recent user-defined GetRemoteEndPoint() process retrieves the RemoteEndPoint estate from the underlying Socket through the use of the customer estate. TranscodeClient. cs zero 1 2 three four five 6 7 eight nine 10 eleven 12 thirteen 14 15 sixteen 17 18 19 utilizing method; // For String, Int32, Console, ArgumentException utilizing procedure. IO; // For FileStream utilizing procedure. web. Sockets; // For NetworkStream, TcpClient public classification TranscodeClient { deepest const int BUFSIZE = 256; // dimension of learn buffer deepest static NetworkStream netStream; inner most static FileStream fileIn; deepest static TcpClientShutdown consumer; public static void Main(string[] args) { if (args. size ! = three) // try for proper # of args throw new ArgumentException("Parameter(s): "); String server = args[0]; int port = Int32.

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