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# This is a shell function library sourced by some Open vSwitch scripts.
# It is not intended to be invoked on its own.
# Copyright (C) 2009, 2010, 2011, 2012 Nicira Networks, Inc.
#
# 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.
## ----------------- ##
## configure options ##
## ----------------- ##
# All of these should be substituted by the Makefile at build time.
logdir=${OVS_LOGDIR-'@LOGDIR@'} # /var/log/openvswitch
rundir=${OVS_RUNDIR-'@RUNDIR@'} # /var/run/openvswitch
sysconfdir=${OVS_SYSCONFDIR-'@sysconfdir@'} # /etc
etcdir=$sysconfdir/openvswitch # /etc/openvswitch
datadir=${OVS_PKGDATADIR-'@pkgdatadir@'} # /usr/share/openvswitch
bindir=${OVS_BINDIR-'@bindir@'} # /usr/bin
sbindir=${OVS_SBINDIR-'@sbindir@'} # /usr/sbin
VERSION='@VERSION@'
LC_ALL=C; export LC_ALL
## ------------- ##
## LSB functions ##
## ------------- ##
# Use the system's own implementations if it has any.
if test -e /etc/init.d/functions; then
. /etc/init.d/functions
elif test -e /etc/rc.d/init.d/functions; then
. /etc/rc.d/init.d/functions
elif test -e /lib/lsb/init-functions; then
. /lib/lsb/init-functions
fi
# Implement missing functions (e.g. OpenSUSE lacks 'action').
if type log_success_msg >/dev/null 2>&1; then :; else
log_success_msg () {
printf '%s.\n' "$*"
}
fi
if type log_failure_msg >/dev/null 2>&1; then :; else
log_failure_msg () {
printf '%s ... failed!\n' "$*"
}
fi
if type log_warning_msg >/dev/null 2>&1; then :; else
log_warning_msg () {
printf '%s ... (warning).\n' "$*"
}
fi
if type action >/dev/null 2>&1; then :; else
action () {
STRING=$1
shift
"$@"
rc=$?
if test $rc = 0; then
log_success_msg "$STRING"
else
log_failure_msg "$STRING"
fi
return $rc
}
fi
## ------- ##
## Daemons ##
## ------- ##
pid_exists () {
# This is better than "kill -0" because it doesn't require permission to
# send a signal (so daemon_status in particular works as non-root).
test -d /proc/"$1"
}
start_daemon () {
priority=$1
shift
daemon=$1
# drop core files in a sensible place
test -d "$DAEMON_CWD" || install -d -m 755 -o root -g root "$DAEMON_CWD"
set "$@" --no-chdir
cd "$DAEMON_CWD"
# log file
test -d "$logdir" || install -d -m 755 -o root -g root "$logdir"
set "$@" --log-file="$logdir/$daemon.log"
# pidfile and monitoring
test -d "$rundir" || install -d -m 755 -o root -g root "$rundir"
set "$@" --pidfile="$rundir/$daemon.pid"
set "$@" --detach --monitor
# priority
if test X"$priority" != X; then
set nice -n "$priority" "$@"
fi
action "Starting $daemon" "$@"
}
DAEMON_CWD=/
stop_daemon () {
if test -e "$rundir/$1.pid"; then
if pid=`cat "$rundir/$1.pid"`; then
for action in TERM .1 .25 .65 1 1 1 1 KILL 1 1 1 1 FAIL; do
case $action in
TERM)
action "Killing $1 ($pid)" kill $pid
;;
KILL)
action "Killing $1 ($pid) with SIGKILL" kill -9 $pid
;;
FAIL)
log_failure_msg "Killing $1 ($pid) failed"
return 1
;;
*)
if pid_exists $pid >/dev/null 2>&1; then
sleep $action
else
return 0
fi
;;
esac
done
fi
fi
log_success_msg "$1 is not running"
}
daemon_status () {
pidfile=$rundir/$1.pid
if test -e "$pidfile"; then
if pid=`cat "$pidfile"`; then
if pid_exists "$pid"; then
echo "$1 is running with pid $pid"
return 0
else
echo "Pidfile for $1 ($pidfile) is stale"
fi
else
echo "Pidfile for $1 ($pidfile) exists but cannot be read"
fi
else
echo "$1 is not running"
fi
return 1
}
daemon_is_running () {
pidfile=$rundir/$1.pid
test -e "$pidfile" && pid=`cat "$pidfile"` && pid_exists "$pid"
} >/dev/null 2>&1
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