Path: utzoo!attcan!uunet!husc6!rutgers!umn-d-ub!nic.MR.NET!umn-cs!cctb!randy
From: randy@cctb.mn.org (Randy Orrison)
Newsgroups: comp.mail.elm
Subject: Re: newmail also displays on console (bug)
Message-ID: <192@cctb.mn.org>
Date: 13 Mar 89 04:17:55 GMT
References: <316@wubios.wustl.edu> <7310001@hpscdc.HP.COM> <92@dsinc.UUCP>
Reply-To: randy@cctb.mn.org (Randy Orrison)
Organization: Chemical Computer Thinking Battery, St. Paul, MN
Lines: 18

In article <7310001@hpscdc.HP.COM> schmitz@hpscdc.HP.COM (John Schmitz) writes:
> Re: newmail not going away:
> Would it also be possible to record the id of the parent's shell and
> do a kill(parent_id, 0) to detect the parent shell going away?

Why not just do a getppid() when it starts, record that, and if it ever
changes, exit()? I don't have my man pages handy, but I would be very
surprised if getppid() returned the old parent pid after it had exited,
in any version.  This would also work in braindamaged configurations
where the process doesn't get a SIGHUP for some reason. 

	-randy

-- 
Randy Orrison - Chemical Computer Thinking Battery - randy@cctb.mn.org
(aka randy@{umn-cs.uucp, ux.acss.umn.edu, umnacvx.bitnet, garnet.uucp})
	"Blow a lawyer to pieces / It's the obvious way
	 Don't wait for a thesis / Do it today"		- Al Stewart