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Rewrite slam_tomb() to use fuser

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hellekin 2011-12-01 18:50:07 +01:00
parent 02787f4418
commit e482f753da
1 changed files with 7 additions and 56 deletions
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63
src/tomb
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@ -802,66 +802,17 @@ exec_safe_post_hooks() {
fi
}
kill_tomb() {
# $1 = pids to kill
# $2 = type of kill
local e p
# substitute the \n with space
e=${1//$'\n'/ }
# split the string at space delim
# so we can get a for loop honestly
e=(${(s: :)e})
for p in $e; do
func "killing PID $p..."
if [[ "$2" == "soft" ]]; then
kill -USR1 $p
elif [[ "$2" == "hard" ]]; then
kill -TERM $p
elif [[ "$2" == "must die" ]]; then
kill -KILL $p
fi
done
}
# {{{ slam_tomb
# Kill all processes using the tomb
slam_tomb() {
# $1 = tomb mount point
local pidk
pidk=`lsof -t "$1"`
if [[ ! -z "$pidk" ]]; then
kill_tomb "$pidk" "soft"
else
return 0
fi
# if there are remaining pids
# we need to play hard
pidk=`lsof -t "$1"`
if [[ -z "$pidk" ]]; then
return 0
fi
# if we set the -f (force) option
# don't wait, just kill
option_is_set -f || sleep 3
kill_tomb "$pidk" "hard"
pidk=`lsof -t "$1"`
if [[ -z "$pidk" ]]; then
return 0
fi
# if there are still some pids around
# we have to kill 'em all
option_is_set -f || sleep 3
kill_tomb "$pidk" "must die"
pidk=`lsof -t "$1"`
if [[ -z "$pidk" ]]; then
return 0
fi
# what PITA!
for s in INT TERM HUP KILL; do
fuser -s -m "$1" || return 0
fuser -s -m "$1" -k -M -$s && { option_is_set -f || sleep 3 }
done
return 1
}
# }}}
umount_tomb() {
local tombs how_many_tombs