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From: bri@boulder.Colorado.EDU (Brian Ellis)
Newsgroups: comp.lang.c,comp.unix.wizards,comp.unix.questions
Subject: Re: signals?
Message-ID: <14757@boulder.Colorado.EDU>
Date: 10 Dec 89 19:38:42 GMT
References: <846@usl.usl.edu>
Sender: news@boulder.Colorado.EDU
Reply-To: bri@boulder.Colorado.EDU (Brian Ellis)
Organization: University of Colorado, Boulder
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In article <846@usl.usl.edu> pcb@usl.usl.edu (Peter C. Bahrs) writes:
>I want to send the server an urgent message from within a client
>application.  I want the server to stop what it is doing, handle
>the request and continue (interrupt-ish).
>I think I want to set a signal on incoming socket messages?

	You can arrange to have SIGIO delivered to your server when
	a read is possible from a descriptor (your socket). see fcntl(2).
	Or you could open up a second socket and use out-of-band stuff.

	-brian ellis (bri@boulder.Colorado.EDU)