On Feb 8, 2008 1:27 PM, Michael Krauss <hippodriver@xxxxxxx> wrote:
> Hi to .*
>
> I must write a rc init script for a server I am packaging.
> Therefor I have copied the init script of cups.
> Now I recognized that both pid files, cups.pid and my own, in /var/run
> are empty.
>
> Further investigations have shown that
>
> "pidof -o %PPID -x /usr/bin/cdvserver"
>
> returns nothing in the start) case but in stop) it seems to work.
> I don't understand why pidof isn't working as expected.
Because you are calling pidof before the process starts- bash does not
do lazy evaluation of your expressions.
If you want to store the PID of the newly started process, you will
have to make another PID=... call to get it in the else block where
you access it.
> Here is my init script:
> #!/bin/bash
>
> . /etc/rc.conf
> . /etc/rc.d/functions
>
> PID=`pidof -o %PPID -x /usr/bin/cdvserver`
> PIDFILE="/var/run/cdvserver.pid"
> case "$1" in
> start)
> stat_busy "Starting Codeville Server"
> [ -z "$PID" ] && /usr/bin/cdvserver
> if [ $? -gt 0 ]; then
> stat_fail
> else
> echo "Started " $PID
> echo $PID > $PIDFILE
> add_daemon cdv
> stat_done
> fi
> ;;
> stop)
> stat_busy "Stopping Codeville Server"
> [ ! -z "$PID" ] && kill $PID &> /dev/null
> if [ $? -gt 0 ]; then
> stat_fail
> else
> rm $PIDFILE
> rm_daemon cdv
> stat_done
> fi
> ;;
> restart)
> $0 stop
> sleep 1
> $0 start
> ;;
> *)
> echo "usage: $0 {start|stop|restart}"
> esac
> exit 0
>
>
