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1#! /bin/sh
2### BEGIN INIT INFO
3# Provides: skeleton
4# Required-Start: $local_fs
5# Should-Start:
6# Required-Stop: $local_fs
7# Should-Stop:
8# Default-Start: 2 3 4 5
9# Default-Stop: 0 1 6
10# Short-Description: Example initscript
11# Description: This file should be used to construct scripts to be
12# placed in /etc/init.d
13### END INIT INFO
14
15# The definition of actions: (From LSB 3.1.0)
16# start start the service
17# stop stop the service
18# restart stop and restart the service if the service is already running,
19# otherwise start the service
20# try-restart restart the service if the service is already running
21# reload cause the configuration of the service to be reloaded without
22# actually stopping and restarting the service
23# force-reload cause the configuration to be reloaded if the service supports
24# this, otherwise restart the service if it is running
25# status print the current status of the service
26
27# The start, stop, restart, force-reload, and status actions shall be supported
28# by all init scripts; the reload and the try-restart actions are optional
29
30# Common steps to convert this skeleton into a real init script
31# 1) cp skeleton <the_real_name>
32# 2) Set DESC and NAME
33# 3) Check whether the daemon app is /usr/sbin/$NAME, if not, set it.
34# 4) Set DAEMON_ARGS if there is any
35# 5) Remove the useless code
36
37# NOTE: The skeleton doesn't support the daemon which is a script unless the
38# pidof supports "-x" option, please see more comments for pidofproc ()
39# in /etc/init.d/functions
40
41# PATH should only include /usr/* if it runs after the mountnfs.sh script
42PATH=/sbin:/usr/sbin:/bin:/usr/bin
43
44DESC="skeleton"
45NAME="skeleton-test"
46DAEMON=/usr/sbin/$NAME
47DAEMON_ARGS=""
48PIDFILE=/var/run/$NAME.pid
49
50. /etc/init.d/functions || exit 1
51
52# Exit if the package is not installed
53[ -x "$DAEMON" ] || exit 0
54
55# Read configuration variable file if it is present
56[ -r /etc/default/$NAME ] && . /etc/default/$NAME
57
58#
59# Function that starts the daemon/service
60#
61do_start() {
62 local status pid
63
64 status=0
65 pid=`pidofproc $NAME` || status=$?
66 case $status in
67 0)
68 echo "$DESC already running ($pid)."
69 exit 1
70 ;;
71 *)
72 echo "Starting $DESC ..."
73 exec $DAEMON $DAEMON_ARGS >/dev/null 2>&1 || status=$?
74 echo "ERROR: Failed to start $DESC."
75 exit $status
76 ;;
77 esac
78
79 # Add code here, if necessary, that waits for the process to be ready
80 # to handle requests from services started subsequently which depend
81 # on this one. As a last resort, sleep for some time.
82}
83
84#
85# Function that stops the daemon/service
86#
87do_stop() {
88 local pid status
89
90 status=0
91 pid=`pidofproc $NAME` || status=$?
92 case $status in
93 0)
94 # Exit when fail to stop, the kill would complain when fail
95 kill -s 15 $pid >/dev/null && rm -f $PIDFILE && \
96 echo "Stopped $DESC ($pid)." || exit $?
97 ;;
98 *)
99 echo "$DESC is not running; none killed." >&2
100 ;;
101 esac
102
103 # Wait for children to finish too if this is a daemon that forks
104 # and if the daemon is only ever run from this initscript.
105 # If the above conditions are not satisfied then add some other code
106 # that waits for the process to drop all resources that could be
107 # needed by services started subsequently. A last resort is to
108 # sleep for some time.
109 return $status
110}
111
112#
113# Function that sends a SIGHUP to the daemon/service
114#
115do_reload() {
116 local pid status
117
118 status=0
119 # If the daemon can reload its configuration without
120 # restarting (for example, when it is sent a SIGHUP),
121 # then implement that here.
122 pid=`pidofproc $NAME` || status=$?
123 case $status in
124 0)
125 echo "Reloading $DESC ..."
126 kill -s 1 $pid || exit $?
127 ;;
128 *)
129 echo "$DESC is not running; none reloaded." >&2
130 ;;
131 esac
132 exit $status
133}
134
135
136#
137# Function that shows the daemon/service status
138#
139status_of_proc () {
140 local pid status
141
142 status=0
143 # pidof output null when no program is running, so no "2>/dev/null".
144 pid=`pidofproc $NAME` || status=$?
145 case $status in
146 0)
147 echo "$DESC is running ($pid)."
148 exit 0
149 ;;
150 *)
151 echo "$DESC is not running." >&2
152 exit $status
153 ;;
154 esac
155}
156
157case "$1" in
158start)
159 do_start
160 ;;
161stop)
162 do_stop || exit $?
163 ;;
164status)
165 status_of_proc
166 ;;
167restart)
168 # Always start the service regardless the status of do_stop
169 do_stop
170 do_start
171 ;;
172try-restart|force-reload)
173 # force-reload is the same as reload or try-restart according
174 # to its definition, the reload is not implemented here, so
175 # force-reload is the alias of try-restart here, but it should
176 # be the alias of reload if reload is implemented.
177 #
178 # Only start the service when do_stop succeeds
179 do_stop && do_start
180 ;;
181#reload)
182 # If the "reload" action is implemented properly, then let the
183 # force-reload be the alias of reload, and remove it from
184 # try-restart|force-reload)
185 #
186 #do_reload
187 #;;
188*)
189 echo "Usage: $0 {start|stop|status|restart|try-restart|force-reload}" >&2
190 exit 3
191 ;;
192esac
193