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Editorial Team
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Asked: 2026-05-20T19:40:25+00:00

I have a listener that will pass arbitrary data, HTTP requests, to a network

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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.

My question is:

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?

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1 Answer

  1. Editorial Team

    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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