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| author | Felix Fietkau <nbd@openwrt.org> | 2015-09-09 20:36:10 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2015-09-09 20:36:10 +0000 |
| commit | 29c44e0647b4ab908ffbad58a9a850038c12920a (patch) | |
| tree | 7c5368c9d79993f208eda78d8f55f360ae45e0ba /target/linux/ipq806x | |
| parent | b07a54e686aa61e7288583d54eb38cbf40880493 (diff) | |
| download | master-187ad058-29c44e0647b4ab908ffbad58a9a850038c12920a.tar.gz master-187ad058-29c44e0647b4ab908ffbad58a9a850038c12920a.tar.bz2 master-187ad058-29c44e0647b4ab908ffbad58a9a850038c12920a.zip | |
busybox: lock: implement -n "Fail rather than wait"
lock -n is similiar to flock -n. If the lock was already taken,
fail with exit code = 1 and write error message to stderr.
example:
if ! lock -n /tmp/foo ; then
echo lock exits.
else
echo lock was free. But is locked now.
fi
> lock was free. But is locked now.
> lock exists.
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@46836 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ipq806x')
0 files changed, 0 insertions, 0 deletions