select call

5 Types of IO models and differences available to UNIX:1. Blocking IO2. Non-blocking IO3.IO multiplexing (SELECT and poll)4. Signal-driven IO (SIGIO)5. Asynchronous IO (POSIX aio_ series functions)Ii. 1. Blocking IO Model:The most popular IO model

This week I learned the software structure diagram. Software structure diagram (Structure chart, abbreviation SC) is the module hierarchy of software system, which reflects the function realization of the whole system. The software structure

EPOLL-I/O Event Notification FacilityIn the Linux network programming, the long time uses the Select to do the event to trigger. In the new Linux kernel, there is a mechanism to replace it, that is epoll.The biggest benefit compared to Select,epoll

The Select function is used in non-blocking, when a socket or a set of sockets is signaled, the system provides a select function to implement the multiplexed input/output model, the prototype:int select (int maxfd,fd_set *rdset,fd_set *wrset,fd_set

First of all, the framework of this article, first of all, then summarize the differences between the two mechanisms and relations, and finally introduce the use of each interfaceFirst, the question leads to the contact differenceThe problem arises,

Different points:1, different identifiers. The identifier of the function is the functions, and the procedure is: PROCEDURE.2, the function has a return value, and must return, and the procedure does not return a value.3, the procedure has no return

Directory (?) [-] Conceptual understanding Five types of IO models under Linux Blocking IO Model Non-blocking IO model IO multiplexing Model Signal-driven IO Asynchronous IO Model Comparison of an IO

First, ListenerThe listener thread, when the server is running, is responsible for listening for connections from the client and using select mode to handle the Accept event.At the same time, it turns on an idle connection (idle Connection)

The difference between synchronous/asynchronous and blocking/non-blocking I like to explain some concepts in my own language by contacting some of the phenomena in real life, and when I can do that, I understand the concept. The concept to be

Python 3: select-based event driver, pythonselect The basic principle of this function is that the select/epoll function will continuously poll all the sockets in charge. When a socket has data, it will notify the user process. Its Process When a

1. Select Model:Select model: Through a Fd_set collection management socket, after the socket requirements are met, the socket is notified. Let the socket work. Avoid sockets entering blocking mode and making unnecessary waits. Select the Fd_set

In the previous article, I talked about some basic concepts of network programming. In the real use, the most used is I/O multiplexing, is nothing more than select,poll,epollMany people refer to the Internet as saying epoll that epoll efficiency is

what is socket the socket interface is a TCP/IP network API. The SOCKET interface defines many functions or routines, Program personnel can use them to develop applications on TCP/IP networks. To learn TCP/IP network programming on the internet,

This article is senlie original, reproduced Please retain this address: http://blog.csdn.net/zhengsenlie Next, I will introduce several different versions of the same tcp client program, including the stop and other versions, the Select and

How to merge worksheets of the same format in multiple workbooks into one Worksheet Sub books2sheets () 'defines the Variable Application in the dialog box. screenupdating = false dim FD as filedialog set FD = application. filedialog

Today, the editor is used. Many people on the Internet say that ckeditor is easy to use, so the latest version of ckeditor 3.6.2 is available on the Internet. How to configure it in my blog? Here is a link. I will not detail it. Http://blog.csdn.net/

Document directory PPC TPC Select Poll Epoll Epoll Introduction Epoll is introduced in the linux 2.6 kernel. It replaces the previous select/poll model and can fully support large-scale concurrent network programs in linux.Comparison

What is SocketA Socket interface is an API of a TCP/IP network. A Socket interface defines many functions or routines that can be used by programmers to develop applications on a TCP/IP network. To learn TCP/IP network programming on the Internet,

Tornado is known for its capability of handling concurrent connections with help of OS event triggering mechanisms like epoll and kqueue. Web. py is a Web Framework for python. It relies on other server packages to serve as a complete web server

The TCP protocol itself is reliable and does not mean that the application can send data over TCP. No matter whether it is blocked or not, the size of the send does not represent the amount of data from the peer Recv. In blocking mode, the send