Path: utzoo!attcan!uunet!snorkelwacker!usc!rutgers!mcnc!uvaarpa!mmdf
From: worley@compass.com (Dale Worley)
Newsgroups: comp.lang.perl
Subject: Async reading from two sockets?
Message-ID: <1990Sep26.125039.19694@uvaarpa.Virginia.EDU>
Date: 26 Sep 90 12:50:39 GMT
Sender: mmdf@uvaarpa.Virginia.EDU (Uvaarpa Mail System)
Reply-To: worley@compass.com
Organization: The Internet
Lines: 18


   From: ckd@cs.bu.edu (Christopher Davis)

   I have a program which binds two sockets, which we can call FOO and
   BAR.  I want to read from *both* of them asynchronously as the
   information comes in.  I'm used to using while(<FOO>) to get
   information from one, but how do I read from whichever one has
   data?

Use select() with four arguments.  It allows you to wait for I/O to be
ready on any combination of filehandles, and returns telling you which
ones are ready.

Dale Worley		Compass, Inc.			worley@compass.com
--
Necessity is the plea for every infringement of human freedom.
It is the argument of tyrants; it is the creed of slaves.
-- William Pitt