Path: utzoo!attcan!uunet!lll-winken!ncis.llnl.gov!ncis!helios.ee.lbl.gov!nosc!ucsd!ucbvax!agate!eris.berkeley.edu!mellon
From: mellon@eris.berkeley.edu (Ted Lemon)
Newsgroups: comp.unix.aux
Subject: SIGIO
Summary: How is it used?
Keywords: SIGIO fcntl FASYNC
Message-ID: <19222@agate.BERKELEY.EDU>
Date: 19 Jan 89 08:16:46 GMT
Sender: usenet@agate.BERKELEY.EDU
Organization: University of California, Berkeley
Lines: 10

I'm trying to do some work with X, and I'd like to get a SIGIO signal
whenever there's data available on the X socket.   The documentation for
sigvec indicates that (a) there is such a signal, and (b) I should read
the documentation for fcntl to find out how it works.   Reading this
documentation indicates that I can use F_SETOWN to indicate where to
send the SIGIO signal, but doesn't tell me how to get one in the first
place.   There doesn't seem to be an FASYNC flag, a la Sun, so I am stymied.
How does one use this signal?

				_MelloN_