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DIO_server
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DIO_server
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#!/bin/sh
### BEGIN INIT INFO
# Provides: DIO_server
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: initscript to autostart the python DIO server for the raspberryPi
# Description: This file should be placed in /etc/init.d
### END INIT INFO
# Author: Ian Dobbie <[email protected]>
# 2015-04-28
# PATH should only include /usr/* if it runs after the mountnfs.sh script
#PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="Cockpit remote DIO server to run on a raspberryPi using GPIO"
NAME="DIO_server"
DAEMON="/usr/local/pi-DIO/DIO_server.py"
PIDFILE="/var/run/DIO_server.pid"
SCRIPTNAME=/etc/init.d/$NAME
# 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/$NAME
# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh
# Define LSB log_* functions.
# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
# and status_of_proc is working.
. /lib/lsb/init-functions
#
# Function that starts the daemon/service
#
do_start()
{
# Return
# 0 if daemon has been started
# 1 if daemon was already running (or some other error)
# 2 if daemon could not be started
status_of_proc "$NAME" "$DAEMON" > /dev/null \
&& return 1
start-stop-daemon --start --background --pidfile "$PIDFILE" --make-pidfile \
--exec "$DAEMON" --test > /dev/null \
|| return 1
start-stop-daemon --start --background --pidfile "$PIDFILE" --make-pidfile \
--exec "$DAEMON" \
|| return 2
# Add code here, if necessary, that waits for the process to be ready
# to handle requests from services started subsequently which depend
# on this one. As a last resort, sleep for some time.
}
#
# Function that stops the daemon/service
#
do_stop()
{
# Return
# 0 if daemon has been stopped
# 1 if daemon was already stopped
# 2 if daemon could not be stopped
# other if a failure occurred
start-stop-daemon --stop --retry=TERM/30/KILL/5 --pidfile "$PIDFILE"
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"
return 0
}
case "$1" in
start)
[ "$VERBOSE" = no ] || log_daemon_msg "Starting $NAME daemon"
do_start
case "$?" in
0|1) [ "$VERBOSE" = no ] || log_end_msg 0 ;;
2) [ "$VERBOSE" = no ] || log_end_msg 1 ;;
esac
;;
stop)
[ "$VERBOSE" = no ] || log_daemon_msg "Stopping $NAME daemon"
do_stop
case "$?" in
0|1) [ "$VERBOSE" = no ] || log_end_msg 0 ;;
2) [ "$VERBOSE" = no ] || log_end_msg 1 ;;
esac
;;
status)
status_of_proc "$NAME" "$DAEMON" && exit 0 || exit $?
;;
# 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 $NAME daemon"
do_stop
case "$?" 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: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
exit 3
;;
esac