poky/meta/packages/sysvinit/sysvinit/rc

#!/bin/sh

rc This file is responsible for starting/stopping

services when the runlevel changes.

Optimization feature:

A startup script is not run when the service was

running in the previous runlevel and it wasn't stopped

in the runlevel transition (most Debian services don't

have K?? links in rc{1,2,3,4,5} )

Author: Miquel van Smoorenburg miquels@cistron.nl

Bruce Perens Bruce@Pixar.com

Version: @(#)rc 2.78 07-Nov-1999 miquels@cistron.nl

. /etc/default/rcS export VERBOSE

startup_progress() { step=$(($step + $step_change)) if [ "$num_steps" != "0" ]; then progress=$((($step * $progress_size / $num_steps) + $first_step)) else progress=$progress_size fi #echo "PROGRESS is $progress $runlevel $first_step + ($step of $num_steps) $step_change $progress_size" if type psplash-write >/dev/null 2>&1; then TMPDIR=/mnt/.psplash psplash-write "PROGRESS $progress" || true fi }

Start script or program.

startup() {

Handle verbosity

[ "$VERBOSE" = very ] && echo "INIT: Running $@..."

case "$1" in *.sh) # Source shell script for speed. ( trap - INT QUIT TSTP scriptname=$1 shift . $scriptname ) ;; *) "$@" ;; esac startup_progress }

Ignore CTRL-C only in this shell, so we can interrupt subprocesses.

trap ":" INT QUIT TSTP

Set onlcr to avoid staircase effect.

stty onlcr 0>&1

Now find out what the current and what the previous runlevel are.

runlevel=$RUNLEVEL

Get first argument. Set new runlevel to this argument.

[ "$1" != "" ] && runlevel=$1 if [ "$runlevel" = "" ] then echo "Usage: $0 " >&2 exit 1 fi previous=$PREVLEVEL [ "$previous" = "" ] && previous=N

export runlevel previous

Is there an rc directory for this new runlevel?

if [ -d /etc/rc$runlevel.d ] then # Find out where in the progress bar the initramfs got to. PROGRESS_STATE=0 #if [ -f /dev/.initramfs/progress_state ]; then # . /dev/.initramfs/progress_state #fi

# Split the remaining portion of the progress bar into thirds
progress_size=$(((100 - $PROGRESS_STATE) / 3))

case "$runlevel" in
	0|6)
		# Count down from -100 to 0 and use the entire bar
		first_step=-100
		progress_size=100
		step_change=1
		;;
        S)
		# Begin where the initramfs left off and use 2/3
		# of the remaining space
		first_step=$PROGRESS_STATE
		progress_size=$(($progress_size * 2))
		step_change=1
		;;
	*)
		# Begin where rcS left off and use the final 1/3 of
		# the space (by leaving progress_size unchanged)
		first_step=$(($progress_size * 2 + $PROGRESS_STATE))
		step_change=1
		;;
esac

num_steps=0
for s in /etc/rc$runlevel.d/[SK]*; do
        case "${s##/etc/rc$runlevel.d/S??}" in
            gdm|xdm|kdm|reboot|halt)
                break
                ;;
        esac
        num_steps=$(($num_steps + 1))
    done
    step=0

# First, run the KILL scripts.
if [ $previous != N ]
then
	for i in /etc/rc$runlevel.d/K[0-9][0-9]*
	do
		# Check if the script is there.
		[ ! -f $i ] && continue

		# Stop the service.
		startup $i stop
	done
fi

# Now run the START scripts for this runlevel.
for i in /etc/rc$runlevel.d/S*
do
	[ ! -f $i ] && continue

	if [ $previous != N ] && [ $previous != S ]
	then
		#
		# Find start script in previous runlevel and
		# stop script in this runlevel.
		#
		suffix=${i#/etc/rc$runlevel.d/S[0-9][0-9]}
		stop=/etc/rc$runlevel.d/K[0-9][0-9]$suffix
		previous_start=/etc/rc$previous.d/S[0-9][0-9]$suffix
		#
		# If there is a start script in the previous level
		# and _no_ stop script in this level, we don't
		# have to re-start the service.
		#
		[ -f $previous_start ] && [ ! -f $stop ] && continue
	fi
	case "$runlevel" in
		0|6)
			startup $i stop
			;;
		*)
			startup $i start
			;;
	esac
done

fi

#Uncomment to cause psplash to exit manually, otherwise it exits when it sees a VC switch #if [ "x$runlevel" != "xS" ]; then

if type psplash-write >/dev/null 2>&1; then

TMPDIR=/mnt/.psplash psplash-write "QUIT" || true

umount /mnt/.psplash

fi

#fi