openwrt-packages-dist/utils/hd-idle/files/hd-idle.init

#!/bin/sh /etc/rc.common
# Copyright (C) 2008-2011 OpenWrt.org

START=50

append_bool() {
	local section="$1"
	local option="$2"
	local value="$3"
	local _val
	config_get_bool _val "$section" "$option" '0'
	[ "$_val" -gt 0 ] && append args "$3"
}

append_string() {
	local section="$1"
	local option="$2"
	local value="$3"
	local _val
	config_get _val "$section" "$option"
	[ -n "$_val" ] && append args "$3 $_val"
}

compute_seconds() {
	local interval="$1"
	local unit="$2"

	if [ -z "$interval" ]
	then
		interval=10
	fi

	if [ -z "$unit" ]
	then
		unit="minutes"
	fi

	# compute interval in seconds
	case "$unit" in
		"days" )
			interval_seconds=$(($interval*60*60*24))
			;;
		"hours" )
			interval_seconds=$(($interval*60*60))
			;;
		"minutes" )
			interval_seconds=$(($interval*60))
			;;
		"seconds" )
			interval_seconds=$interval
			;;
		* )
			# default is minutes
			interval_seconds=$(($interval*60))
			;;
	esac

	echo $interval_seconds
}

start_service() {
	local section="$1"
	args=""
	config_get "interval" "$section" "idle_time_interval"
	config_get "unit" "$section" "idle_time_unit"
	append_string "$section" "disk" "-a"
	config_get_bool "enabled" "$section" "enabled" '1'
	[ "$enabled" -gt 0 ] || return 1
	service_start /usr/bin/hd-idle $args -i "$(compute_seconds $interval $unit)"
}

start() {
	config_load "hd-idle"
	config_foreach start_service "hd-idle"
}

stop() {
	service_stop /usr/bin/hd-idle
}