powernowd.init

   1 #!/bin/sh
   2 #
   3 # powernowd             Starts the powernowd daemon
   4 #
   5 # chkconfig:    345 45 55
   6 # description:  Reduce cpu frequency when idle
   7 # processname:  powernowd
   8 #
   9 # pidfile:      /var/run/powernowd.pid
  10
  11 # Source function library.
  12 . /etc/rc.d/init.d/functions
  13
  14 # Configuration file.
  15 . /etc/sysconfig/powernowd
  16
  17 SYSDIR="/sys/devices/system/cpu/cpu0/cpufreq"
  18
  19 RETVAL=0
  20 # See how we were called.
  21 case "$1" in
  22   start)
  23         # Start daemons.
  24         if [ ! -f /var/lock/subsys/powernowd ]; then
  25         LOADMODULE="no"
  26                 if [ ! -f $SYSDIR/scaling_available_governors ]; then
  27             LOADMODULE="yes"
  28         else
  29             if grep -q userspace $SYSDIR/scaling_available_governors; then
  30                 LOADMODULE="yes"
  31             fi
  32                 fi
  33         if [ "$LOADMODULE" -eq "yes" ]; then
  34             _modprobe cpufreq_userspace
  35         fi
  36
  37                 ARGS=""
  38                 ARGS="$ARGS ${OPERATION_MODE:+-m $OPERATION_MODE}"
  39                 ARGS="$ARGS ${FREQUENCY_STEP:+-s $FREQUENCY_STEP}"
  40                 ARGS="$ARGS ${POLLING_FREQUENCY:+-p $POLLING_FREQUENCY}"
  41                 ARGS="$ARGS ${THREADS_COUNT:+-c $THREADS_COUNT}"
  42                 ARGS="$ARGS ${CPU_UPPER:+-u $CPU_UPPER}"
  43                 ARGS="$ARGS ${CPU_LOWER:+-l $CPU_LOWER}"
  44                 ARGS="$ARGS ${PROGRAM_ARGS}"
  45
  46                 # starting:
  47                 msg_starting powernowd
  48                 daemon powernowd $ARGS
  49                 RETVAL=$?
  50                 [ $RETVAL -eq 0 ] && touch /var/lock/subsys/powernowd
  51         else
  52                 msg_already_running powernowd
  53         fi
  54         ;;
  55   stop)
  56         # Stop daemons.
  57         if [ -f /var/lock/subsys/powernowd ]; then
  58                 msg_stopping powernowd
  59                 killproc powernowd
  60                 rm -f /var/lock/subsys/powernowd >/dev/null 2>&1
  61         else
  62                 msg_not_running powernowd
  63         fi
  64         ;;
  65   reload|force-reload)
  66         if [ -f /var/lock/subsys/powernowd ]; then
  67                 msg_reloading powernowd
  68                 killproc powernowd -HUP
  69                 RETVAL=$?
  70         else
  71                 msg_not_running powernowd >&2
  72                 exit 7
  73         fi
  74         ;;
  75   restart)
  76         $0 stop
  77         $0 start
  78         exit $?
  79         ;;
  80   status)
  81         status powernowd
  82         exit $?
  83         ;;
  84   *)
  85         msg_usage "$0 {start|stop|restart|reload|force-reload|status}"
  86         exit 3
  87 esac
  88
  89 exit $RETVAL