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|
#!/bin/sh
#
# initscript for lambdamoo, by Jonathan Walther <krooger@debian.org>
#
# Edit /etc/moos.conf to change lambdamoo's configuration.
test -f /etc/lambdamoo.conf || exit 0
# xxx Read config file.
# xxx This is WRONG
# xxx in the next version, will have to parse this file and do some
# xxx other funky stuff.
. /etc/lambdamoo.conf
# Sanity check on config file.
if [ "$PORT" = "" ] || [ "$LOGFILE" = "" ] || [ "$TIMEOUT" = "" ]; then
echo "LambdaMoo: bad /etc/lambdamoo.conf !" ;
exit
fi
# See how we were called.
case "$1" in
start)
# Check what the file /var/lib/lambdamoo/moo.db points to.
DBFILE=`update-alternatives --display moo.db | \
grep "currently points to" | \
cut -d " " -f 6`
test -f "$DBFILE" || exit 0
# Clean up old databases.
cd `dirname $DBFILE`
if [ ! -r "$DBFILE" ] ; then
echo "Bad database: $DBFILE"
exit 1
fi
if [ -r "$DBFILE.new" ] ; then
mv $DBFILE $DBFILE.old
mv $DBFILE.new $DBFILE
rm -f $DBFILE.old.gz
gzip $DBFILE.old &
fi
echo -n "Starting lambdamoo servers: "
# Important to do this so we don't get busy mount points or other
# problems.
cd /
# Check if there is a process to match what's in the pid file,
# by sending signal 0, which has no effect. This also checks to see
# if there is a pid file at all, btw.
if start-stop-daemon --quiet --stop --signal 0 --user daemon \
--pidfile /var/run/lambdamoo.pid --name lambdamoo 2>/dev/null
then
echo " already running."
exit
fi
touch $LOGFILE
chown daemon.daemon $LOGFILE
su daemon -c "\
/sbin/start-stop-daemon --start --quiet --user daemon \
--exec /usr/sbin/lambdamoo \
--startas /usr/sbin/lambdamoo -- \
-l $LOGFILE $DBFILE $DBFILE.new $PORT" \
>/dev/null 2>/dev/null </dev/null &
echo $! > /var/run/lambdamoo.pid
echo "$DBFILE" > /var/run/lambdamoo.db
echo "."
;;
stop)
echo -n "Stopping LambdaMoo servers: "
# Check if there is a process to match what's in the pid file,
# by sending signal 0, which has no effect. This also checks to see
# if there is a pid file at all, btw.
if start-stop-daemon --quiet --stop --signal 0 --user daemon \
--pidfile /var/run/lambdamoo.pid --name lambdamoo 2>/dev/null
then
# Load up the filename of the db file that was last used.
DBFILE=`cat /var/run/lambdamoo.db` 2>/dev/null
# Signal 2 means dump db and die.
start-stop-daemon --quiet --stop --signal 2 \
--user daemon --name lambdamoo \
--pidfile /var/run/lambdamoo.pid
# Wait until the timeout for the server to die.
count=$TIMEOUT
newfile=no
fivecount=0
pid=`cat /var/run/lambdamoo.pid`
while ([ $count != 0 ]) do
let count=$count-1
let fivecount=fivecount+1
if kill -0 "$pid" 2>/dev/null ; then
sleep 1
# Every five seconds, check so see if it
# has started saving db, if not, resend the
# signal 2.
if [ $fivecount = 5 -a "$newfile" != "yes" ]
then
fivecount=0
if [ -z "`ls $DBFILE.new.\#*\# 2>/dev/null`" ]
then
start-stop-daemon --quiet --stop --signal 2 \
--user daemon\
--pidfile /var/run/lambdamoo.pid \
--name lambdamoo 2>/dev/null
echo -n retry
let count=$count-4
else
newfile=yes
fi
fi
else
count=0
fi
echo -n .
done
# If it's not dead yet, kill it.
if kill -0 "$pid" 2>/dev/null ; then
echo " TIMEOUT!"
start-stop-daemon --quiet --stop \
-exec /usr/sbin/lambdamoo --user daemon \
--pidfile /var/run/lambdamoo.pid \
--name lambdamoo 2>/dev/null
else
echo "done."
fi
else
echo " not running.";
fi
rm -f /var/run/lambdamoo.pid /var/run/lambdamoo.db
;;
force-reload|restart)
# There doesn't appear to be a better way (like a signal we could send.)
$0 stop
$0 start
;;
*)
echo "Usage: /etc/init.d/lambdamoo {start|stop|restart|force-reload}"
exit 1
esac
exit 0
|
