socket function

What man netstat seesActive Internet connections (TCP, UDP, raw)The protocol (tcp, udp, raw) used by the socket.Active UNIX domain SocketsThe protocol (usually unix) used by the socket. What does w/o server mean?Active Internet connections (w/o

First, HTTP overviewHTTP is the abbreviation for Hypertext Transfer Protocol, the Hypertext Transfer Protocol. HTTP is an application-layer protocol that, like other application-layer protocols, implements a specific type of protocol for a

What is a Socket?A socket is also called a socket, and an application usually makes a request to the network through a "socket" or responds to a network request, making it possible to communicate between hosts or between processes on a

First, what is a socket?Python official about Socket function See http://docs.python.org/library/socket.htmlSockets are also commonly referred to as "sockets," which describe IP addresses and ports, and are a handle to a chain of communication,

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

Reprint: http://blog.csdn.net/jay900323/article/details/181412171. Conceptual understandingIn network programming, we often see synchronous (sync)/async (Async), blocking (block)/non-blocking (Unblock) Four call modes:Synchronous:The so-called

After reading the Linux programming about socket socket This chapter of the communication flow of the introduction, wrote the client and server side of the program. There are some problems that need attention.Client: Socket Internet address

The Linux socket library was ported from the BSD Unix system developed by Berkeley University. The BSD socket interface is a widely supported TCP/IP communication interface in many UNIX systems, and the socket programming under Linux is suitable for

1 #include 2 ssize_t recv (int sockfd, void *buff, size_t nbytes, int flags); 3 ssize_t Send (int sockfd, const void *buff, size_t nbytes, int flags);The first 3 parameters of recv and send are equivalent to read and write.The flags parameter has a

SocketsThe struct SOCKADDR structure defines a common socket address, which he defines in Linux/socket.h as followsstruct SOCKADDR{unsigned short sa_family; The Protocol cluster address type of the socket, the TCP/IP protocol for IPV4 address type

Python provides two levels of access to network services. ： The low-level network service supports the basic socket, which provides the standard BSD Sockets API to access all the methods of the underlying operating system socket interface.

Socket programming Steps The server creates a socket, binds the address and port, and listens for incoming connections on the port, and receives the incoming connection through the Accept function once the connection comes in. The

Python Network ProgrammingPython provides two levels of access to network services. ： The low-level network service supports the basic socket, which provides the standard BSD Sockets API to access all the methods of the underlying operating

Sockets are abstractions of communication endpoints. The file descriptor is created with the open function, and the socket descriptor is created with the socket function. The socket function prototype is as follows:int socket (int domain, int type,

1. Conceptual understanding In network programming, we often see synchronous (sync)/async (Async), blocking (block)/non-blocking (Unblock) Four call modes:Sync:The so-called synchronization is that when a function call is made, the call does not

FeedLearned a lot of computer network, still do not network programming.This will not be the case after reading this post.Environment: Ubuntu14.04 64bitWhat is a socketThe concept of data communication used in network application programming based

Socket is an abstract concept of network programming, usually we use a socket to indicate "open a network link", and open a socket needs to know the destination computer's IP address and port number, and then specify the protocol type. Python

Five IO models of LinuxReprint: http://blog.csdn.net/jay900323/article/details/18141217  performance analysis of Linux five IO modelsDirectory (?) [-] Conceptual understanding Five types of IO models under Linux Blocking IO

Trunk section Server-Side:socket->bind->listen->accept->close; Client: socket->connect->close; After the connection is established, the data is transmitted .... The main functions involved are as follows: The socket function is used to create the

Recently in the writing of some things in the network programming, and then encountered on the transmission of small problems. As a result of a simple look at some of the TCP/IP details of some things, so simply looking for this "tracking