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Article #11

Re: Problem making accept() non-blocking (never sees connections)

#11
From: Kartik Subbarao
Date: Wed, 28 Oct 1992 15:12
18 lines
1548 bytes
In article <1992Oct27.191608.11099@Trirex.COM> bmehlman@trirex.com writes:
>My experience is: When the FNDELAY flag on the socket is not
>set, the connections are established w/ no problem, but 
>accept() will block waiting for connections (as expected).
>
>If FNDELAY is set, then accept will always return
>EWOULDBLOCK, even when there are pending connects.

FNDELAY works fine for me. The problem I think you're having here
is that you're not checking for connect()s enough. If you request
non-blocking I/O, it is your responsibility to poll the socket ever so
often with an accept() (or you can get fancy and use select()) to check for
incoming requests. As far as I can see, you only check *once* for an incoming 
connect() after you establish the socket. But just how often and where to
check for incoming requests depends entirely on the specifics of your
program. Perhaps you could elaborate further.

	-Kartik
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Message-ID: <1992Oct28.151238.15318@Princeton.EDU>
Path: arc1-ca.pugleaf.net!sparky!uunet!ogicse!uwm.edu!linac!att!princeton!tex.Princeton.EDU!subbarao
References: <1992Oct27.191608.11099@Trirex.COM>

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Path: arc1-ca.pugleaf.net!sparky!uunet!ogicse!uwm.edu!linac!att!princeton!tex.Princeton.EDU!subbarao
From: subbarao@fc.hp.com (Kartik Subbarao)
Newsgroups: comp.unix.programmer
Subject: Re: Problem making accept() non-blocking (never sees connections)
Message-ID: <1992Oct28.151238.15318@Princeton.EDU>
Date: 28 Oct 92 15:12:38 GMT
Article-I.D.: Princeto.1992Oct28.151238.15318
References: <1992Oct27.191608.11099@Trirex.COM>
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