linux/scripts/init/inithelpers/daemon.sh

#!/bin/sh

# Author: Adrian Kousz, 2014

USAGE="Usage: $0 {start|stop|restart|status} <pidfile> [<daemon> [<prio> [<umask>]]]"

. "$(dirname "$0")/fns.sh"

start() {
	if is_running "$1"; then
		echo 'Service already running'
		exit 7
	fi
	local CMDX="$2"
	if [ -z "$CMDX" ]; then
		echo "$USAGE" >&2
		echo 'Need <daemon>' >&2
		exit 2
	fi
	if [ ! -z $4 ]; then CMDX="umask $4; $CMDX"; fi
	sh -c "$CMDX"
	if is_running "$1"; then
		echo 'Service started'
		if [ ! -z $3 ]; then renice $3 $(cat "$1") 2>&-; fi
	fi
}

case "$1" in
	start)
		start "$2" "$3" "$4" "$5"
		;;
	stop)
		stop "$2"
		;;
	restart)
		stop "$2"
		start "$2" "$3" "$4" "$5"
		;;
	status)
		status "$2"
		;;
	*)
		echo "$USAGE" >&2
		exit 2
esac