fixed a serious bug and prevented simultaneous runs of the main script
This commit is contained in:
parent
6b4819092c
commit
11fe4c3a22
79
door.sh
79
door.sh
|
@ -1,28 +1,82 @@
|
||||||
#! /bin/sh
|
#! /bin/bash
|
||||||
|
|
||||||
cd /etc/door/
|
|
||||||
export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
|
export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
|
||||||
|
|
||||||
OPEN_INDICATOR=/tmp/door_status_open
|
OPEN_INDICATOR=/tmp/door_status_open
|
||||||
CLOSED_INDICATOR=/tmp/door_status_closed
|
CLOSED_INDICATOR=/tmp/door_status_closed
|
||||||
|
|
||||||
|
DELAY=10
|
||||||
|
DATE_STRING="$(date +%s)#$(date +"%F %X")"
|
||||||
|
TIMEOUT=30
|
||||||
|
LOCKDIR="/var/lock"
|
||||||
|
|
||||||
|
lock_file() {
|
||||||
|
OUTFILE=$1
|
||||||
|
OUTFILE_LOCK="${LOCKDIR}/$(readlink -f $OUTFILE | sed -e "s/\//\!/g").lock"
|
||||||
|
TIMEOUT_LOCK=$TIMEOUT
|
||||||
|
while [ $(mkdir "$OUTFILE_LOCK" 2> /dev/null; echo $? ) -ne 0 -a $TIMEOUT_LOCK -gt 0 ]; do
|
||||||
|
TIMEOUT_LOCK=$(($TIMEOUT_LOCK-1))
|
||||||
|
if [ -f "$OUTFILE_LOCK/lastaction" -a ! -d "$OUTFILE_LOCK/timeout" ] >> /dev/null 2>&1; then
|
||||||
|
FILEAGE=$(($(date +%s) - $(stat -c '%Y' "$OUTFILE_LOCK/lastaction" || echo $(date +%s) 2> /dev/null )))
|
||||||
|
TIMEOUT_LOCK=$(($TIMEOUT-$FILEAGE))
|
||||||
|
fi
|
||||||
|
if [ $TIMEOUT_LOCK -le 0 ]; then
|
||||||
|
if [ $(mkdir "$OUTFILE_LOCK/timeout" >> /dev/null 2>&1; echo $? ) -ne 0 ]; then
|
||||||
|
TIMEOUTAGE_LOCK=$(($(date +%s) - $(stat -c '%Y' "$OUTFILE_LOCK/timeout")))
|
||||||
|
if [ $TIMEOUTAGE_LOCK -gt $TIMEOUT ]; then
|
||||||
|
if [ $(rm -rf "$OUTFILE_LOCK/timeout" >> /dev/null 2>&1; echo $? ) -ne 0 ]; then
|
||||||
|
TIMEOUT_LOCK=$TIMEOUT
|
||||||
|
else
|
||||||
|
TIMEOUT_LOCK=1
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
TIMEOUT_LOCK=$(($TIMEOUT-$TIMEOUTAGE_LOCK))
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
sleep 1
|
||||||
|
done
|
||||||
|
if [ $TIMEOUT_LOCK -le 0 ]; then
|
||||||
|
echo "Timeout! Ignoring old \"$OUTFILE_LOCK\"." >&2
|
||||||
|
fi
|
||||||
|
touch "$OUTFILE_LOCK/lastaction"
|
||||||
|
}
|
||||||
|
|
||||||
|
unlock_file() {
|
||||||
|
OUTFILE=${1}
|
||||||
|
OUTFILE_LOCK="${LOCKDIR}/$(readlink -f $OUTFILE | sed -e "s/\//\!/g").lock"
|
||||||
|
rm -rf "$OUTFILE_LOCK"
|
||||||
|
}
|
||||||
|
|
||||||
|
cd $(dirname $0) || {
|
||||||
|
echo "konnte verzeichniss nicht wechseln"
|
||||||
|
exit 1
|
||||||
|
}
|
||||||
|
|
||||||
|
lock_file $OPEN_INDICATOR
|
||||||
|
lock_file $CLOSED_INDICATOR
|
||||||
if [ -f $OPEN_INDICATOR ]; then
|
if [ -f $OPEN_INDICATOR ]; then
|
||||||
LOCK_AGE=$(( $(date +%s)-$(stat -c %X $OPEN_INDICATOR) ))
|
LOCK_AGE=$(( $(date +%s)-$(stat -c %X $OPEN_INDICATOR) ))
|
||||||
elif [ -f $CLOSED_INDICATOR ]; then
|
elif [ -f $CLOSED_INDICATOR ]; then
|
||||||
LOCK_AGE=$(( $(date +%s)-$(stat -c %X $CLOSED_INDICATOR) ))
|
LOCK_AGE=$(( $(date +%s)-$(stat -c %X $CLOSED_INDICATOR) ))
|
||||||
else
|
else
|
||||||
LOCK_AGE=15
|
LOCK_AGE=$DELAY
|
||||||
fi
|
fi
|
||||||
|
|
||||||
if [ $LOCK_AGE -lt 15 ]; then
|
if [ $LOCK_AGE -lt $DELAY ]; then
|
||||||
echo "please wait at least 15 seconds befor a second run of this script" >&2
|
echo "please wait at least $DELAY seconds before a second run of this script" >&2
|
||||||
|
unlock_file $OPEN_INDICATOR
|
||||||
|
unlock_file $CLOSED_INDICATOR
|
||||||
exit 1
|
exit 1
|
||||||
fi
|
fi
|
||||||
|
|
||||||
./door_verify.sh
|
if [ "$1" == "noverify" ]; then
|
||||||
STATUS=$?
|
STATUS=0
|
||||||
|
else
|
||||||
|
./door_verify.sh
|
||||||
|
STATUS=$?
|
||||||
|
fi
|
||||||
if [ $STATUS -eq 0 ]; then
|
if [ $STATUS -eq 0 ]; then
|
||||||
echo "opening door"
|
|
||||||
if [ -f $OPEN_INDICATOR ]; then
|
if [ -f $OPEN_INDICATOR ]; then
|
||||||
echo "closing door"
|
echo "closing door"
|
||||||
./door_lock.sh close
|
./door_lock.sh close
|
||||||
|
@ -34,8 +88,17 @@ if [ $STATUS -eq 0 ]; then
|
||||||
rm $CLOSED_INDICATOR
|
rm $CLOSED_INDICATOR
|
||||||
touch $OPEN_INDICATOR
|
touch $OPEN_INDICATOR
|
||||||
fi
|
fi
|
||||||
|
unlock_file $OPEN_INDICATOR
|
||||||
|
unlock_file $CLOSED_INDICATOR
|
||||||
exit 0
|
exit 0
|
||||||
else
|
else
|
||||||
echo "the lock won't move" >&2
|
echo "the lock won't move" >&2
|
||||||
|
if [ -f $OPEN_INDICATOR ]; then
|
||||||
|
touch $OPEN_INDICATOR
|
||||||
|
else
|
||||||
|
touch $CLOSED_INDICATOR
|
||||||
|
fi
|
||||||
|
unlock_file $OPEN_INDICATOR
|
||||||
|
unlock_file $CLOSED_INDICATOR
|
||||||
exit 1
|
exit 1
|
||||||
fi
|
fi
|
||||||
|
|
Loading…
Reference in New Issue