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file locking

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This commit is contained in:
Brian Seymour 2018-11-02 00:21:22 -05:00
parent 208d91c237
commit fb7b684cd9
3 changed files with 10 additions and 4 deletions
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7
lxc/execute
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@ -2,6 +2,8 @@
dir="$( cd "$( dirname "$0" )" && pwd )"
touch $dir/lockfile
if [ -z "$1" ]; then
echo "invalid args"
exit
@ -12,7 +14,7 @@ if [ -z "$2" ]; then
fi
lang=$1
epoch=$(date +%s%3N)
epoch=$(date +%s%N)
basepath="/var/lib/lxc/piston/rootfs"
filepath="/tmp/$epoch/code.code"
argpath="/tmp/$epoch/args.args"
@ -25,6 +27,8 @@ cat $2 > $basepath$filepath
echo "${@:3}" > $basepath$argpath
# process incrementor
exec 200>$dir/lockfile
flock -x 200
oldinc=$(cat $dir/i | awk '{$1=$1};1')
newinc=$(expr $oldinc + 1)
@ -34,6 +38,7 @@ if (( newinc >= 151 )); then
else
echo $newinc > $dir/i
fi
exec 200>&-
bin=
case "$lang" in