File google-clock-skew-daemon.suse of Package google-compute-engine-init.3436

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File google-clock-skew-daemon.suse of Package google-compute-engine-init.3436

#!/bin/sh
# Copyright 2016 Google Inc. All Rights Reserved.
# Copyright 2016 SUSE LLC All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
#     Unless required by applicable law or agreed to in writing, software
#     distributed under the License is distributed on an "AS IS" BASIS,
#     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#     See the License for the specific language governing permissions and
#     limitations under the License.
#
### BEGIN INIT INFO
# Provides:          google_clock_skew_daemon
# Required-Start:    $network $syslog $google_instance_setup $remote_fs
# Required-Stop:     $network
# Default-Start:     2 3 5
# Default-Stop:      0 1 6
# Short-Description: Google Compute Engine Clock Skew Daemon
# Description:       Sync the system clock on migration.
### END INIT INFO

# Do NOT "set -e".

NAME=google-clock-skew-daemon
DAEMON=/usr/bin/google_clock_skew_daemon

# Exit if the package is not installed.
[ -x "$DAEMON" ] || exit 0

# 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_failed        set local and overall rc status to failed
#      rc_reset         clear local rc status (overall remains)
#      rc_exit          exit appropriate to overall rc status
. /etc/rc.status

# First reset status of this service
rc_reset

# Return values acc. to LSB for all commands but status:
# 0 - success
# 1 - misc error
# 2 - invalid or excess args
# 3 - unimplemented feature (e.g. reload)
# 4 - insufficient privilege
# 5 - program not installed
# 6 - program not configured
#
# Note that starting an already running service, stopping
# or restarting a not-running service as well as the restart
# with force-reload (in case signalling is not supported) are
# considered a success.

case "$1" in
    start)
        echo -n "Starting $NAME daemon "
        ## Start daemon with startproc(8). If this fails
        ## the echo return value is set appropriate.

# startproc should return 0, even if service is
        # already running to match LSB spec.
        startproc $DAEMON

# Remember status and be verbose
        rc_status -v
        ;;
    stop)
        echo -n "Shutting down $NAME daemon "
        killproc -TERM $DAEMON

# Remember status and be verbose
        rc_status -v
        ;;
    status)
        echo -n "Checking for $NAME daemon "
        ## Check status with checkproc(8), if process is running
        ## checkproc will return with exit status 0.

# Status has a slightly different for the status command:
        # 0 - service running
        # 1 - service dead, but /var/run/  pid  file exists
        # 2 - service dead, but /var/lock/ lock file exists
        # 3 - service not running

# NOTE: checkproc returns LSB compliant status values.
        checkproc $DAEMON
        rc_status -v
        ;;
    restart|force-reload)
        $0 stop
        $0 start
        ;;
    *)
        echo $"Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}"
        exit 1
        ;;
esac

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File google-clock-skew-daemon.suse of Package google-compute-engine-init.3436

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