#! /bin/sh
### BEGIN INIT INFO
# Provides:          ondemand
# Required-Start:    $remote_fs $all
# Required-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:
# Short-Description: Set the CPU Frequency Scaling governor to "ondemand"
### END INIT INFO

# Don't run if we're going to start an Android LXC container:
test ! -f /etc/init/lxc-android-config.conf || exit 0

global PATH := '/sbin:/usr/sbin:/bin:/usr/bin'

source /lib/init/vars.sh
source /lib/lsb/init-functions

global AVAILABLE := '"/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors'"

matchstr $1 {
    start {
    	start-stop-daemon --start --background --exec /etc/init.d/ondemand -- background
        }
    background {
	sleep 60 # probably enough time for desktop login

	test -f $AVAILABLE || exit 0
	read governors < $AVAILABLE
	matchstr $governors {
		*interactive* {
			global GOVERNOR := '"interactive'"
			break
			}
		*ondemand* {
			global GOVERNOR := '"ondemand'"
			break
			}
		*powersave* {
			global GOVERNOR := '"powersave'"
			break
			}
		* {
			exit 0
			}
	}

	for CPUFREQ in [/sys/devices/system/cpu/cpu*/cpufreq/scaling_governor]
	{
		test -f $CPUFREQ || continue
		echo -n $GOVERNOR > $CPUFREQ
	}
	}
    restart|reload|force-reload {
        echo "Error: argument '$1' not supported" > !2
        exit 3
        }
    stop {
        }
    * {
        echo "Usage: $0 start|stop" > !2
        exit 3
        }
}