. NET network programming 1. Multithreading

A preface

1. Why is the network programming to use multithreading?

In network programming often encounter network congestion or network wait, and so on, processing these situations will wait for a long time, such as non-multithreading can occur too long, prone to errors, unresponsive and so on, using multi-threading will greatly improve the program's robustness and scalability of new performance.

2. The difference between a process and a thread

A program at least one process, the image point, you open the QQ is a process, but you also have to chat with several people, open several chat windows, each chat window is a thread, (so the same process can be divided into a number of threads, each thread has its own registers and so on, But the code area is shared)

Two multi-threaded base

Before learning the basis of multi-threaded mail, first give everyone a basic concept of the macro, in this part is divided into 8 parts:

1. Start the thread 2. Terminating a thread 3. Merging Threads 4. Thread Hibernation 5. Thread Priority 6. Synchronization 7. Thread Pool Application

Threads are used in the thread class. His main methods are:

1.Abort terminating thread

2.Interrupt Break Thread

3.join blocks the calling thread until a thread terminates

4.Sleep Sleep

A simple example of a first-come-on:

Using system;using system.collections.generic;using system.linq;using system.text;using System.Threading;using        System.threading.tasks;namespace consoleapplication3{class Program {static void Main (string[] args)                    {Thread thread = new Thread (new ThreadStart () = {while (true) {                    Thread.Sleep (100);                Console.WriteLine ("111");            }            })); Thread.    Start (); Start thread//thread.  Interrupt (); The interrupt thread throws an exception//thread.      Abort ();  Terminating thread Thread.Sleep (2000); The main line blocks 2s thread.   Suspend (); Threads thread2 = new Thread (new ThreadStart () = {//thread.   Start (); There is an exception [the thread is running or is terminated; it cannot be restarted.  ]//Why is there an error? If you want to start restarting an existing process, you can only suspend the previous one and then continue executing//or re-new a thread object thread.    Resume ();         Wakes a suspended thread while (true)       {thread.sleep (100);                Console.WriteLine ("222");            }            })); Thread2.    Start ();        Start thread 2 console.readline (); }    }}

　　

. NET network programming 1. Multithreading