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#!/bin/sh
### BEGIN INIT INFO
# Provides: nohang
# Required-Start: $network $local_fs
# Required-Stop: $local_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Highly configurable out of memory preventer
### END INIT INFO
PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC=nohang
NAME=nohang
DAEMON=/usr/sbin/$NAME
PIDFILE=/run/$NAME.pid
LOGFILE=/var/log/$NAME.log
USER="root"
# Exit if the package is not installed
[ -x $DAEMON ] || exit 0
[ -r /etc/default/$NAME ] && . /etc/default/$NAME
. /lib/init/vars.sh
. /lib/lsb/init-functions
# Function that starts the daemon/service
do_start()
{
# Return
# 0 if daemon has been started
# 1 if daemon was already running
# 2 if daemon could not be started
touch "$PIDFILE"
start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --chuid "$USER" --test > /dev/null \
|| return 1
start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --chuid "$USER" -- \
$DAEMON_OPTS > /dev/null 2>&1 \
|| return 2
return $?
}
# Function that stops the daemon/service
do_stop()
{
# Return
# 0 if daemon has been stopped
# 1 if daemon was already stopped
# 2 if daemon could not be stopped
# other if a failure occurred
start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME
RETVAL="$?"
[ "$RETVAL" = 2 ] && return 2
start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON
[ "$?" = 2 ] && return 2
rm -f $PIDFILE
return "$RETVAL"
}
case "$1" in
start)
[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC " "$NAME"
do_start
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
stop)
[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
do_stop
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
status)
status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
;;
reload|force-reload|restart)
log_daemon_msg "Restarting $DESC" "$NAME"
do_stop
case "$?" in
0|1)
do_start
case "$?" in
0) log_end_msg 0 ;;
1) log_end_msg 1 ;; # Old process is still running
*) log_end_msg 1 ;; # Failed to start
esac
;;
*)
# Failed to stop
log_end_msg 1
;;
esac
;;
*)
echo "Usage: $0 {start|stop|status|restart|reload}" >&2
exit 3
;;
esac
:
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