网络I/O方式的比较与选择

Comparison and Analysis of UNIX I/O Modes

以 UNIX系统下 echo(回显 )网络服务的编程实现为例 ,系统介绍各种网络 I/ O方式。通过对比其特点 ,探讨在实际应用中如何合理选取网络 I/ O方式 ,并给出一个通用的 I/ O方式选择标准。

I/O modes in network programming under UNIX operation system is introduced in this paper.By comparing these I/O modes,how to choose the optimal I/O mode is discussed, and a general judging standard has been given.