recvfrom

Socket programming practices in Linux (10) Basic UDP programming detailsIn my two blogs, I briefly introduced and implemented the server and client programs under UDP (TCP)-based windows (basically consistent procedures in UNIX, this article

Principles of TCP/IP Networks In an Internet Protocol network, each computer has a 32-bit IP address. The IP address of each computer is unique. WWW is an extremely large and growing IP network. Therefore, each computer on the network must have a

Sends the message to send the data to the sending buffer of its own side, and the receiving message is received from the buffer of its own side.1. Tcp:send send Message, recv receive message2. Udp:sendto send Message, recvfrom receive messageTCP is

IO Model IntroductionTo better understand the IO model, we need to review it in advance: synchronous, asynchronous, blocking, non-blockingWhat is the difference between synchronous (synchronous) IO and asynchronous (asynchronous) Io, what is

TCP and UDP communication flow The basic steps for TCP communication are as follows: Server: Socket---BIND---listen---while (1) {---accept---recv---send---close---}------close Client:

Note: This article is a lot of blog learning and summary, there may be an understanding error. Please take a skeptical look at the same time if there are mistakes to be pointed out. What is the difference between synchronous IO and asynchronous Io,

Introduction to an IO modelTo better understand the IO model, we need to review it in advance: synchronous, asynchronous, blocking, non-blockingWhat is the difference between synchronous (synchronous) IO and asynchronous (asynchronous) Io, what is

Original: http://blog.csdn.net/historyasamirror/article/details/5778378 When you find that your most popular blog is a big mistake, this is definitely not a pleasant thing to do.IO-Sync, asynchronous, blocking, non-blocking I wrote when I began to

Turn from: http://blog.csdn.net/historyasamirror/article/details/5778378 When you find that your most popular blog is a big mistake, this is definitely not a pleasant thing to do.IO-Sync, asynchronous, blocking, non-blocking I wrote when I began

Synchronous (synchronous) IO and asynchronous (asynchronous) Io, what is the difference between blocking (blocking) IO and non-blocking (non-blocking) IO, respectively. The problem is that different people may give different answers, some think

This article will summarize the important knowledge points of UDP socket programming in Linux, whether it is developer haulage, or some remote knowledge points of UDP sockets, this paper will talk about. As far as possible, after reading an article,

A simple UDP proxy Program As a supplement to 1. Why is this UDP program developed?The network condition is shown in the preceding figure . Our socks proxy has permissions (I believe many companies). When I write this program, I do not have the

Difference Between TCP and UDP Connection-based and connectionless Requirements on system resources (more TCP and less UDP) Simple UDP program structure Stream mode and datagram ModeTCP ensures data correctness and UDP may cause packet

After the standard UDP client has opened a set of interfaces, it generally uses the sendto and recvfrom functions to send data. Recently, we can see that the ntpclient Code uses the direct method of the send function, so we have analyzed it, in the

First look at the typical scenarios for UDP client/server interactions, such as:It is known that the client program does not need to establish a connection to the server, just call the SendTo function to send data to the server, or call the Recvfrom

Before comparing these two patterns, we first understand a few concepts, what is blocking and non-blocking, what is synchronous and asynchronous.Synchronization and Asynchrony are for the interaction of the application and the kernel.Synchronization

First, understand what is the I/O model preliminarily.1. Review the user Configuration and kernel state.The operating system sits between the application and the hardware, essentially a software that consists of the kernel and system calls.Kernel:

UDP-based socketsNon-connected unreliable data transmission, can be no server side, but no server side, the data sent will be directly discarded, and can not reach the server side1 #客户端2 Import Socket3 ip_port= (' 127.0.0.1 ', 8080) 4 bufsize=10245

IO model1, blocking IO2, non-blocking IO3, multiplexing IO4, asynchronous IOOne, blocking IOThe blocking IO is characterized by a block of two phases of IO execution (two stages of waiting for data and copying data).Virtually all IO interfaces

Event-driven introduction in general, when we write a server process model, there are several models: (1) Each request is received, a new process is created to process the request, (2) Each request is received, a new thread is created to process the