mirror of
https://github.com/kerberos-io/openalpr-base.git
synced 2025-11-01 03:32:38 +08:00
172 lines
4.2 KiB
Bash
172 lines
4.2 KiB
Bash
#!/bin/sh
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### BEGIN INIT INFO
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# Provides: openalpr-daemon
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# Required-Start: $local_fs $network $remote_fs $syslog
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# Required-Stop: $local_fs $network $remote_fs $syslog
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: OpenALPR daemon for license plate recognition
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# Description: OpenALPR daemon detects license plate in the background
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### END INIT INFO
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# Author: Emmanuel Papin <manupap01@gmail.com>
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unset USER
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# PATH should only include /usr/* if it runs after the mountnfs.sh script
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PATH=/sbin:/usr/sbin:/bin:/usr/bin
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DESC="OpenALPR daemon"
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NAME=openalpr-daemon
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DAEMON=/usr/bin/alprd
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PIDFILE=/var/run/alprd.pid
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SCRIPTNAME=/etc/init.d/$NAME
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DEFAULT=/etc/default/$NAME
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USER=openalpr
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# Exit if the package is not installed
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[ -x "$DAEMON" ] || exit 0
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# Read configuration variable file if it is present
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[ -r $DEFAULT ] && . $DEFAULT
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# Load the VERBOSE setting and other rcS variables
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. /lib/init/vars.sh
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# Define LSB log_* functions.
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# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
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# and status_of_proc is working.
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. /lib/lsb/init-functions
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# Do not start the daemon if NO_START is enabled in DEFAULT
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if [ "$START_DAEMON" != "yes" ] && [ "$1" != "stop" ]; then
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log_warning_msg "$NAME: Not starting $DESC."
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log_warning_msg "$NAME: Disabled in $DEFAULT."
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exit 0
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fi
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# Set the default log file
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if [ -z $LOGFILE ]; then
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LOGFILE=/var/log/alpr.log
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fi
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# Run as `daemon' if USER is not specified or is `root'
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if [ -z $USER ]; then
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USER=daemon
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fi
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# If no group is specified, use USER
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if [ -z $GROUP ]; then
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GROUP=$USER
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fi
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DAEMON_ARGS="-l $LOGFILE $DAEMON_OPTS"
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#
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# Function that starts the daemon/service
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#
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do_start()
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{
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# Return
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# 0 if daemon has been started
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# 1 if daemon was already running
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# 2 if daemon could not be started
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[ ! -f $LOGFILE ] && touch $LOGFILE && chown $USER:$GROUP $LOGFILE
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start-stop-daemon --start --quiet --pidfile $PIDFILE \
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--chuid $USER:$GROUP --exec $DAEMON --test > /dev/null \
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|| return 1
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start-stop-daemon --start --quiet --pidfile $PIDFILE \
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--chuid $USER:$GROUP --exec $DAEMON -- \
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$DAEMON_ARGS \
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|| return 2
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}
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#
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# Function that stops the daemon/service
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#
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do_stop()
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{
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# Return
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# 0 if daemon has been stopped
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# 1 if daemon was already stopped
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# 2 if daemon could not be stopped
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# other if a failure occurred
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start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME
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RETVAL="$?"
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[ "$RETVAL" = 2 ] && return 2
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# Wait for children to finish too if this is a daemon that forks
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# and if the daemon is only ever run from this initscript.
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# If the above conditions are not satisfied then add some other code
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# that waits for the process to drop all resources that could be
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# needed by services started subsequently. A last resort is to
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# sleep for some time.
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start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON
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[ "$?" = 2 ] && return 2
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# Many daemons don't delete their pidfiles when they exit.
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rm -f $PIDFILE
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return "$RETVAL"
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}
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#
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# Function that sends a SIGHUP to the daemon/service
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#
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do_reload() {
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#
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# If the daemon can reload its configuration without
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# restarting (for example, when it is sent a SIGHUP),
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# then implement that here.
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#
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start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE --name $NAME
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return 0
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}
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case "$1" in
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start)
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[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
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do_start
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case "$?" in
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0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
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2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
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esac
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;;
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stop)
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[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
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do_stop
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case "$?" in
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0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
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2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
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esac
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;;
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status)
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status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
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;;
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restart|force-reload)
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#
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# If the "reload" option is implemented then remove the
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# 'force-reload' alias
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#
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log_daemon_msg "Restarting $DESC" "$NAME"
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do_stop
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case "$?" in
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0|1)
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do_start
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case "$?" in
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0) log_end_msg 0 ;;
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1) log_end_msg 1 ;; # Old process is still running
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*) log_end_msg 1 ;; # Failed to start
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esac
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;;
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*)
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# Failed to stop
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log_end_msg 1
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;;
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esac
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;;
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*)
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echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
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exit 3
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;;
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esac
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:
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