交流电插座编程 - 接受多个后续连接 [英] C Socket Programming - Accept Multiple Subsequent Connections

问题描述

这是一个后续这个问题;作为我的认识过程已经演变等具有我的问题。

This is a follow-up to this question; as my understanding of the process has evolved so has my question.

我有一个监听器将通过任意数据，HTTP请求，网络套接字，然后通过TCP传送。这工作正常第一个请求，但听者不接受后续新的请求。

I have a listener that will pass arbitrary data, HTTP requests, to a network socket which is then delivered over TCP. This works fine for the first request but the listener does not accept subsequent new requests.

我的问题是：

如果我有袜子=接受（监听器，（结构地址*）及罪恶，和放大器; sinlen）; 然后，基于socket函数引用，听者插座保持打开状态，我应该能够重新调用接受（）任意次数的后续请求。它是否正确？如果是这样，有人可以比我更熟悉套接字编程，请解释一下这是如何code可能看？

If I have sock=accept(listener,(struct addr *)&sin, &sinlen); then, based on the socket function reference, the listener socket remains open and I should be able to re-call accept() any number of times for subsequent requests. Is this correct? If so, can someone more familiar than I with socket programming please explain how this code might look?

先谢谢了。

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感谢所有的答复。

推荐答案

是的，你可以接受（）监听套接字上许多倍。为了服务多个客户端，你需要避免阻塞I / O - 也就是说，你不能只是从插座和块，直到数据进来阅读有两种方法：你可以在自己的线程服务于每一个客户（或其。自己的过程中，通过使用叉（）在UNIX系统上），或者你可以使用选择（）。在选择（）的功能是检查是否可用在任何一组文件描述符的数据的方法。它可用于UNIX和Windows。

Yes, you can accept() many times on the listening socket. To service multiple clients, you need to avoid blocking I/O -- i.e., you can't just read from the socket and block until data comes in. There are two approaches: you can service each client in its own thread (or its own process, by using fork() on UNIX systems), or you can use select(). The select() function is a way of checking whether data is available on any of a group of file descriptors. It's available on both UNIX and Windows.

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