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#!/bin/sh
### BEGIN INIT INFO
# Provides: ulab-gpibserver
# Required-Start: $local_fs $remote_fs
# Required-Stop: $local_fs $remote_fs
# Should-Start: console-screen kbd acpid hal krb5-kdc nis
# Should-Stop: console-screen kbd
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: uLab GPIB Instrumentation Server
# Description: uLab GPIB Instrumentation Server
### END INIT INFO
# /etc/init.d/ulab-gpibserver: start or stop the uLab GPIB Instrumentation Server
#
# description: uLab GPIB Instrumentation Server
#
. /lib/lsb/init-functions
set -e
PATH=/opt/trinity/bin:/usr/bin:/sbin:/usr/sbin:/bin
DAEMON=/opt/trinity/bin/ulab_gpibserver
PIDFILE=/var/run/ulab_gpibserver.pid
UPGRADEFILE=/var/run/ulab_gpibserver.upgrade
DESC="uLab GPIB Instrumentation Server"
# If we upgraded the daemon, we can't use the --exec argument to
# start-stop-daemon since the inode will have changed. The risk here is that
# in a situation where the daemon died, its pidfile was not cleaned up, and
# some other process is now running under that pid, start-stop-daemon will send
# signals to an innocent process. However, this seems like a corner case.
# C'est la vie!
if [ -e $UPGRADEFILE ]; then
SSD_ARGS="--pidfile $PIDFILE --startas $DAEMON"
else
SSD_ARGS="--pidfile $PIDFILE --exec $DAEMON"
fi
stillrunning () {
if expr "$(cat /proc/$DAEMONPID/cmdline 2> /dev/null)" : "$DAEMON" > /dev/null 2>&1; then
true
else
# if the daemon does not remove its own pidfile, we will
rm -f $PIDFILE $UPGRADEFILE
false
fi;
}
case "$1" in
start)
log_action_begin_msg "Starting $DESC"
if start-stop-daemon --background --start --make-pidfile --quiet $SSD_ARGS -- $ARG; then
log_action_end_msg 0
else
log_warning_msg "already running"
log_action_end_msg 0
fi
;;
restart)
/etc/init.d/ulab-gpibserver stop
if [ -f $PIDFILE ]; then
if stillrunning; then
exit 1
fi
fi
/etc/init.d/ulab-gpibserver start
;;
reload)
log_action_begin_msg "Reloading $DESC"
if start-stop-daemon --stop --signal 1 --quiet $SSD_ARGS; then
log_action_end_msg 0
else
log_failure_msg "not running"
log_action_end_msg 1
fi
;;
force-reload)
/etc/init.d/ulab-gpibserver reload
;;
stop)
log_action_begin_msg "Stopping $DESC"
if [ ! -f $PIDFILE ]; then
log_failure_msg "Not running ($PIDFILE not found)"
log_action_end_msg 0
exit 0
else
if start-stop-daemon --stop --quiet $SSD_ARGS; then
log_action_end_msg 0
else
log_failure_msg "not running"
log_action_end_msg 1
fi
fi
;;
*)
echo "Usage: /etc/init.d/ulab-gpibserver {start|stop|restart|reload|force-reload}"
exit 1
;;
esac
exit 0
|
