#! /bin/bash
# Copyright (c) 2002 SuSE Linux AG, Nuernberg, Germany.
# All rights reserved.
#
# Author: Christian Zoz <zoz@suse.de>
#
# /etc/init.d/acpid
#   and its symbolic link
# /usr/sbin/rcacpid
#
# LSB compliant service control script; see http://www.linuxbase.org/spec/
# 
### BEGIN INIT INFO
# Provides:                   acpid
# Required-Start:             $remote_fs
# X-UnitedLinux-Should-Start: $syslog 
# Required-Stop:              $remote_fs
# X-UnitedLinux-Should-Stop:  $syslog 
# Default-Start:              2 3 5
# Default-Stop:               0 1 6
# Short-Description: Listen and dispatch ACPI events from the kernel
# Description:       acpid reads events from /proc/acpi/event and dispatches
#	them (by SuSE default) to /usr/sbin/acpid_proxy. This script collects
#	additional information if necessary and executes required actions (e.g.
#	shutting down when the power button was pressed.) You may select these
#	actions in /etc/sysconfig/powermanagement.
#	Additionally this start script loads all needed modules.

### END INIT INFO

# Check for missing binaries (stale symlinks should not happen)
ACPID_BIN=/usr/sbin/acpid
test -x $ACPID_BIN || exit 5

# Check for existence of needed config file and read it
ACPID_CONFIG=/etc/sysconfig/powermanagement
test -r $ACPID_CONFIG || exit 6
. $ACPID_CONFIG

# Shell functions sourced from /etc/rc.status:
#      rc_check         check and set local and overall rc status
#      rc_status        check and set local and overall rc status
#      rc_status -v     ditto but be verbose in local rc status
#      rc_status -v -r  ditto and clear the local rc status
#      rc_status -s     display "skipped" and exit with status 3
#      rc_status -u     display "unused" and exit with status 3
#      rc_failed        set local and overall rc status to failed
#      rc_failed <num>  set local and overall rc status to <num>
#      rc_reset         clear local rc status (overall remains)
#      rc_exit          exit appropriate to overall rc status
#      rc_active	checks whether a service is activated by symlinks
#      rc_splash arg    sets the boot splash screen to arg (if active)
. /etc/rc.status

# Reset status of this service
rc_reset

# Return values acc. to LSB for all commands but status:
# 0	  - success
# 1       - generic or unspecified error
# 2       - invalid or excess argument(s)
# 3       - unimplemented feature (e.g. "reload")
# 4       - user had insufficient privileges
# 5       - program is not installed
# 6       - program is not configured
# 7       - program is not running
# 8--199  - reserved (8--99 LSB, 100--149 distrib, 150--199 appl)
# 
# Note that starting an already running service, stopping
# or restarting a not-running service as well as the restart
# with force-reload (in case signaling is not supported) are
# considered a success.

case "$1" in
	start)
		if [ ! -d /proc/acpi ] ; then
			echo -n "ACPID: No ACPI support in kernel"
			rc_status -s
			rc_exit
		fi

		echo -n "Loading ACPI modules ("
		for m in $ACPI_MODULES; do
			modprobe -s $m && echo -n "$m "
		done
		echo -n ") "
		rc_status -v
		echo -n "Starting acpid "
		startproc $ACPID_BIN
		rc_status -v
		;;
	stop)
		echo -n "Shutting down acpid "
		killproc -TERM $ACPID_BIN
		rc_status -v
		echo -n "Unloading ACPI modules ("
		for m in $ACPI_MODULES; do
			for n in $ACPI_MODULES_NOT_TO_UNLOAD; do
				test "$m" = "$n" && continue 2
			done
			while read a b c d; do
				echo -n "$c "
			done < <(modprobe -vr $m 2>/dev/null; rc_status)
		done
		echo -n ") "
		rc_status -v
		;;
	try-restart)
	        $0 status
		if test $? = 0; then
			$0 restart
		else
			rc_reset        # Not running is not a failure.
		fi
		rc_status
		;;
	restart)
		$0 stop
		$0 start
		rc_status
		;;
	force-reload|reload)
		echo -n "Reload service acpid "
		killproc -HUP $ACPID_BIN
		rc_status -v
		;;
	status)
		echo -n "Checking for service acpid "
		PID=`checkproc -v $ACPID_BIN`
		if rc_status ; then
			case `cat /proc/$PID/cmdline` in *events.ignore) rc_failed 3; esac
		fi
		rc_status -v
		;;
	probe)
		test $ACPID_CONFIG -nt /var/run/acpid.pid && echo restart
		;;
	*)
		echo "Usage: $0" \
		     "{start|stop|status|try-restart|restart|force-reload|reload|probe}"
		exit 1
		;;
esac
rc_exit
