1, what is the poll method, what is the function?2. Select System Call (function)Select system calls are used for multi-channel monitoring, and select blocks the calling process when no file satisfies the requirement.int select (int maxfd, fd_set
The native socket client is blocked when it connects to the server, that is, when the server calls the Accept method, while the server and the client are blocked when the data is received (called recv). The native socket server can only handle one
The first is to look at common Select and poll. For network programming, it is generally considered that poll is more advanced than Select, which is mainly due to the following reasons:
Poll () does not require the developer to calculate
If an application handles multiple devices, such as applications that read network data, keys, and serial ports, there are three ways to think about it:Method 1:Serial + blocked mode reads:while (1) {Read (standard input);Read
(a) first, introduce several common I/O models and their differencesAs follows:
Blocking I/O
nonblocking I/O
I/O multiplexing (Select and poll)
Signal driven I/O (SIGIO)
asynchronous I/O (the POSIX aio_functions) ————— The
This course focuses onSpark, the hottest, most popular and promising technology in the big Data world today. In this course, from shallow to deep, based on a large number of case studies, in-depth analysis and explanation of Spark, and will contain
One, select
The select is currently supported on almost all platforms, and its good cross-platform support is one of its advantages, and it is, in fact, one of the few advantages it has left.
One disadvantage of select is that the number of file
Simplest Socket socket programming (2)-Poll () and epoll ()
Author: gaopenghigh. For more information, see the source. (Original address)
This document describes how to usepoll()Andepoll()The main step of Socket network programming in UNIX
Event Poll epoll details, pollepoll
Due to the limitations of poll () and select (), the 2.6 kernel introduces the event poll (epoll) mechanism. Although a little complicated, epoll solves their common basic performance problems and adds some new
Release date:Updated on: 2013-02-21
Affected Systems:TYPO3 My quiz and poll Extension 2.xDescription:--------------------------------------------------------------------------------Bugtraq id: 58057 TYPO3 My quiz and poll Extension is a versatile
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