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|
#! /bin/sh
### BEGIN INIT INFO
# Provides: skeleton
# Required-Start: $local_fs
# Should-Start:
# Required-Stop: $local_fs
# Should-Stop:
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Example initscript
# Description: This file should be used to construct scripts to be
# placed in /etc/init.d
### END INIT INFO
# The definition of actions: (From LSB 3.1.0)
# start start the service
# stop stop the service
# restart stop and restart the service if the service is already running,
# otherwise start the service
# try-restart restart the service if the service is already running
# reload cause the configuration of the service to be reloaded without
# actually stopping and restarting the service
# force-reload cause the configuration to be reloaded if the service supports
# this, otherwise restart the service if it is running
# status print the current status of the service
# The start, stop, restart, force-reload, and status actions shall be supported
# by all init scripts; the reload and the try-restart actions are optional
# Common steps to convert this skeleton into a real init script
# 1) cp skeleton <the_real_name>
# 2) Set DESC and NAME
# 3) Check whether the daemon app is /usr/sbin/$NAME, if not, set it.
# 4) Set DAEMON_ARGS if there is any
# 5) Remove the useless code
# NOTE: The skeleton doesn't support the daemon which is a script unless the
# pidof supports "-x" option, please see more comments for pidofproc ()
# in /etc/init.d/functions
# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="skeleton"
NAME="skeleton-test"
DAEMON=/usr/sbin/$NAME
DAEMON_ARGS=""
PIDFILE=/var/run/$NAME.pid
. /etc/init.d/functions || exit 1
# 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
#
# Function that starts the daemon/service
#
do_start() {
local status pid
status=0
pid=`pidofproc $NAME` || status=$?
case $status in
0)
echo "$DESC already running ($pid)."
exit 1
;;
*)
echo "Starting $DESC ..."
exec $DAEMON $DAEMON_ARGS >/dev/null 2>&1 || status=$?
echo "ERROR: Failed to start $DESC."
exit $status
;;
esac
# 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() {
local pid status
status=0
pid=`pidofproc $NAME` || status=$?
case $status in
0)
# Exit when fail to stop, the kill would complain when fail
kill -s 15 $pid >/dev/null && rm -f $PIDFILE && \
echo "Stopped $DESC ($pid)." || exit $?
;;
*)
echo "$DESC is not running; none killed." >&2
;;
esac
# 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.
return $status
}
#
# Function that sends a SIGHUP to the daemon/service
#
do_reload() {
local pid status
status=0
# If the daemon can reload its configuration without
# restarting (for example, when it is sent a SIGHUP),
# then implement that here.
pid=`pidofproc $NAME` || status=$?
case $status in
0)
echo "Reloading $DESC ..."
kill -s 1 $pid || exit $?
;;
*)
echo "$DESC is not running; none reloaded." >&2
;;
esac
exit $status
}
#
# Function that shows the daemon/service status
#
status_of_proc () {
local pid status
status=0
# pidof output null when no program is running, so no "2>/dev/null".
pid=`pidofproc $NAME` || status=$?
case $status in
0)
echo "$DESC is running ($pid)."
exit 0
;;
*)
echo "$DESC is not running." >&2
exit $status
;;
esac
}
case "$1" in
start)
do_start
;;
stop)
do_stop || exit $?
;;
status)
status_of_proc
;;
restart)
# Always start the service regardless the status of do_stop
do_stop
do_start
;;
try-restart|force-reload)
# force-reload is the same as reload or try-restart according
# to its definition, the reload is not implemented here, so
# force-reload is the alias of try-restart here, but it should
# be the alias of reload if reload is implemented.
#
# Only start the service when do_stop succeeds
do_stop && do_start
;;
#reload)
# If the "reload" action is implemented properly, then let the
# force-reload be the alias of reload, and remove it from
# try-restart|force-reload)
#
#do_reload
#;;
*)
echo "Usage: $0 {start|stop|status|restart|try-restart|force-reload}" >&2
exit 3
;;
esac
|
