agp socket

First, socketThe English literal of the socket is "hole" or "socket". As the BSD UNIX process communication mechanism, take the latter one meaning. usually alsoCalled sockets, which describe IP addresses and ports, is a handle to a communication chain that can be used to communicate between different virtual machines or different computers. Hosts on the internet typically run multiple service software, whil

Socket network programming, socketSocket network programming network communication three elements: IP Address [host name] Identifier of the device in the Network Local loopback address: 127.0.0.1 Host Name: localhost Port Number The logical address used to identify the process. Valid port: 0 ~ 65535 0 ~ 1024 is used or reserved by the system. Do not use port 1024 during development. Transmission Protocol [communication r

1. basic structure of socketsstruct SOCKADDRThis structure is used to store socket addresses.Data definition:struct SOCKADDR {unsigned short sa_family; /* Address family, AF_XXX */Char sa_data[14]; /* Protocol address for bytes */};Sa_family in general, are "afinet".Sa_data contains the number of addresses, ports, and sockets for some remote computers, and the data inside it is mixed in one cut. To deal with Struct sockaddr, the programmer builds anot

Socket (socket)(turn) What is a socket (socket)?When the application layer communicates data through the transport layer, TCP and UDP encounter problems that simultaneously provide concurrent services for multiple application processes . Multiple TCP connections or multiple application processes may require data to be

What is a socket? A socket is an intermediate software abstraction layer that the application layer communicates with the TCP/IP protocol family, which is a set of interfaces. In design mode, the socket is actually a façade mode, it is the complex TCP/IP protocol family hidden behind the socket interface, for the use

Sockets are abstractions of communication endpoints. Just as using file descriptors to access a file, the application accesses the socket with a socket descriptor. The socket descriptor is considered to be a file descriptor in a UNIX system. In fact, many functions that handle file descriptors (read and write) can be used to handle

Java Socket Message Communication (i) socket creationCome and share with you today how to use the socket for communication in Java. Let's take a look at TCP/IP and UDP for a second:TCP is the short name of Transfer Control Protocol and is a connection-oriented protocol that guarantees reliable transmission. With the TCP protocol transmission, a sequential error-f

Previously also learned the socket programming, this time want to systematically study the use of Python network programming. Do this, for testing progress, also leave notes and footprints for the follow-up. Socket common functions get host name and host address Socket.gethostname () Socket.gethostbyname () Import Socket host = Socket.gethostname () IP = socket

Second, socket base 1. Access to Addresses public static void Main (string[] args) { try { enumeration 2.TCP Instance Program Note that while only a write () method is used to send a string on the client side, the server side may accept the information from multiple blocks. Even if the feedback string is stored in a block when the server returns, it may be split into multiple parts by the TCP protocol. Tcpechoclienttest.java public sta

Php method to send and receive data to the socket server, socket The example in this paper describes how PHP is sending and receiving data to the socket server. Share to everyone for your reference. Specific as follows: In PHP to send data to other programs, you need to use the socket function to PHP to the instance,

server-side background service. The combination of a port number and an IP address is called a network socket (socket). Java language in the implementation of C/s mode, sockets are divided into two categories: On the server side, the ServerSocket class supports the underlying network traffic; On the client side, the socket class supports the underlyin

Article Source: ASPCN Author: Sun Wen Socket transfer Mode Sockets has two main modes of operation: connection-oriented and connectionless. Connection-oriented sockets operations are like a phone call, They have to establish a connection and a call to one person. All things arrive in the same order as they set out. A connectionless sockets operation is like a mail delivery, and there is no guarantee that multiple messages may arrive in the same orde

The address data structure of the socket has different forms depending on the system and the network environment. In order for the different format addresses to be passed into the socket function, the address structure must be forced to be converted to: struct sockaddr{ sa_family_t sa_family;/* address family*/ char sa_data[];/* Variable-length address*/ ... }; The

Socket socket TCP Apisocket concept Socket, also known as "socket", is a network of interprocess communication data channel of an endpoint, or called a handle. IP address + port number you can uniquely identify a socket. The TCP/IP protocol family includes the t

Php socket programming and socket programming 1. Prerequisites I have never seen how many people use the socket module of php to do some things. Maybe everyone has positioned it within the scope of the script language, but in fact, the php socket module can do a lot of things, including ftplist, http post submission, s

The simple explanation is:Short connection: Establish a connection, send a packet, close the connectionLong connection: Establish a connection, send a packet, send a heartbeat packet, send a packet, send a heartbeat packet, send a heartbeat packet ...So with frequent data transmission, a short connection creates a TCP connection frequently, and for long connections, the same TCP connection is always usedPackage Com.tree.demo.socket;import Java.io.ioexception;import Java.io.inputstream;import jav

The simple explanation is: Short connection: Establish a connection, send a packet, close the connection Long connection: Establish a connection, send a packet, send a heartbeat packet, send a packet, send a heartbeat packet, send a heartbeat packet ... Therefore, frequent data sending and receiving, the short connection will frequently create a TCP connection, and for long connections, always use the same TCP connection Package com.tree.demo.socket; Import java.io.IOException; Import Java.io

Use socket to implement multiple connections and ssh functions, and socket to implement multiple sshI. Preface In the previous article, we already know that the client connects to the server through socket for a data transmission. How can we implement multiple data occurrences on the client? But does the server accept multiple clients?2. Send Chinese Information

After all data operations are completed, you can call the close () function to release the socket and stop any data operations on the socket:Close (sockfd ); You can also call the shutdown () function to close the socket. This function allows you to stop data transmission in a certain direction, while data transmission in one direction continues. For example, you can close the write operation of a

SocketI. OverviewSockets are also commonly referred to as "sockets," which describe IP addresses and ports, and are a handle to a chain of communication, where applications usually make requests to the network through "sockets" or respond to network requests.Sockets originate from UNIX, and one of the basic philosophies of unix/linux is "Everything is file", and the file is operated with "open" "Read and Write" "Off" mode. Socket is an implementation