#! /bin/bash
### BEGIN INIT INFO
# Provides:          qhupdate
# Required-Start:    
# Should-Start: $ALL
# Required-Stop:    
# Default-Start:     2 3 4 5
# Default-Stop:      S 0 1 6
# Short-Description: update deamon
# Description:       Start and stop the quick update.
### END INIT INFO

#
# Revision History:
# Date:   May 23 2008.
# Author: Nilesh Nikam.
# Desc:   Created.
#
PRODUCT_NAME="Seqrite"
QHEPSDIR="/usr/lib/${PRODUCT_NAME}/${PRODUCT_NAME}"
QHAVDIR="/usr/lib/${PRODUCT_NAME}"

# Do NOT "set -e"

# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/usr/sbin:/usr/bin:/sbin:/bin
DESC="${PRODUCT_NAME} Update Service"
NAME="qhupdate"

if [ -f ${QHEPSDIR}/QHfunctions ]; then
        . ${QHEPSDIR}/QHfunctions
        QHDIR=${QHEPSDIR}
else
        if [ -f ${QHAVDIR}/QHfunctions ]; then
                . ${QHAVDIR}/QHfunctions
                QHDIR=${QHAVDIR}
        fi
fi

DAEMON="${QHDIR}/$NAME"
DAEMON_ARGS="" #--options args"
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/quickupdate

# Check root user.
if [ $(id -u) -ne 0 ]
then
	if [ "$1" != "start" -a "$1" != "stop" -a "$1" != "restart" -a "$1" != "force-reload" -a "$1" != "status" ];
	then
		echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload|status}" >&2
		exit 0
	fi

	if [ "$1" != "status" ]
	then
		echo "You are not root user. Please login as root user.";
        	exit 0
	fi
fi

# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0

# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

# Load the VERBOSE setting and other rcS variables
[ -f /etc/default/rcS ] && . /etc/default/rcS

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /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
	start-stop-daemon --quiet --make-pidfile --pidfile $PIDFILE --exec $DAEMON --start \
		|| return 1
#	start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON -- \
#		$DAEMON_ARGS \
#		|| return 2
	# Add code here, if necessary, that waits for the process to be ready
	# to handle requests from services started subsequently which depend
	# on this one.  As a last resort, sleep for some time.
}

#
# 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 --quiet --name $NAME --retry TERM/30/KILL/5 --stop
	RETVAL="$?"
	[ "$RETVAL" = 2 ] && return 2
	# Wait for children to finish too if this is a daemon that forks
	# and if the daemon is only ever run from this initscript.
	# If the above conditions are not satisfied then add some other code
	# that waits for the process to drop all resources that could be
	# needed by services started subsequently.  A last resort is to
	# sleep for some time.
	start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON
	[ "$?" = 2 ] && return 2
	# Many daemons don't delete their pidfiles when they exit.
	rm -f $PIDFILE
	return "$RETVAL"
}

#
# Function that sends a SIGHUP to the daemon/service
#
do_reload() {
	#
	# If the daemon can reload its configuration without
	# restarting (for example, when it is sent a SIGHUP),
	# then implement that here.
	#
	start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE --name $NAME
	return 0
}

case "$1" in
  start)
	# Check if already runnning;
	COUNT=0
	for PROC in $(ps axw -o "pid= command=" | grep ${NAME} | grep -v grep)
	do
		if [ "${PROC%%[!0123456789]*}" = "${PROC}" ]
		then
			COUNT=$((${COUNT} + 1))
		fi
	done
	if [ ${COUNT} -ge 1 ]
	then
		echo "$DESC $NAME is already running..."
		exit 1
	fi

	[ "$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
	;;
  #reload|force-reload)
	#
	# If do_reload() is not implemented then leave this commented out
	# and leave 'force-reload' as an alias for 'restart'.
	#
	#log_daemon_msg "Reloading $DESC" "$NAME"
	#do_reload
	#log_end_msg $?
	#;;
  restart|force-reload)
	#
	# If the "reload" option is implemented then remove the
	# 'force-reload' alias
	#
	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
	;;

  status)
        # Check status;
        COUNT=0
        for PROC in $(ps axw -o "pid= command=" | grep ${NAME} | grep -v grep)
        do
                if [ "${PROC%%[!0123456789]*}" = "${PROC}" ]
                then
                        COUNT=$((${COUNT} + 1))
                fi
        done
        if [ ${COUNT} -ge 1 ]
        then
                echo "$DESC $NAME is running..."
        else
                echo "$DESC $NAME is stopped..."
        fi
        ;;

  *)
	#echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
	echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload|status}" >&2
	exit 3
	;;
esac

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