Date: Sun, 30 Aug 1998 05:26:19 -0400 (EDT) From: Kelly Yancey <kbyanc@freedomnet.com> To: Joel Ray Holveck <joelh@gnu.org> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: determining an X window ID? Message-ID: <Pine.BSD/.3.91.980830052005.10995A-100000@freedomnet.com> In-Reply-To: <199808300355.WAA05971@detlev.UUCP>
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On Sat, 29 Aug 1998, Joel Ray Holveck wrote: > > I have written a fairly short shell script to launch xmcd which first > > checks to see if any other cd player is already running and if so, does > > not launch another instance of xmcd (for when I click on the wrong thing > > :) ) > > How does it do this check? > The old fashioned way...it checks for each of them in the output of ps :) Actually it's not too bad. I broke it into two loops: the first checks for all the X-based cd players (xmcd, xcdplayer, etc), with the hope that one day I'll be able to set focus on them. And the second checks for command-line cd players (cdplay, cda, etc.)...I don't know what I could do if they are running, but it definately isn't to try and start another cd player :). Below is a copy of the script. Kelly Yancey ~kbyanc@freedomnet.com~ #!/bin/sh # This is a script to start xmcd sanely... # There is no advantage to running multiple copies of xmcd (even if you # have multiple CD-ROM's and multiple speakers, you only have one set of # ears. This script checks to see if xmcd is already running and if not, # then starts a new instance of it. It also checks for cda (the # command-line version of xmcd). Ideally, one day it will check for more # cd players too. # # - kbyanc, 8/28/98 # first, we'll check for X-based CD-players with the hopes that one day we # will be able to set focus to the other CD-player for check in "xmcd" "workman" "xcdplayer" do if [ `ps -cawx | grep -c -w $check` = 1 ]; then exit; fi done # check for command-line CD-players... for check in "cda" "cdplay" do if [ `ps -cawx | grep -c -w $check` = 1 ]; then exit; fi done xmcd $@ & To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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