[OpenAFS] Re: safe+portable way to determine if byte-range-locking is dangerous?
Fri, 15 Dec 2006 18:13:42 -0800
Adam Megacz <firstname.lastname@example.org> writes:
> Marcus Watts <email@example.com> writes:
>> Does sqlite make any attempt today to see if byte range locking works,
> Sure -- it checks whether fcntl(fd,F_SETLK,&flock)==0.
> ...unless you mean actually checking at runtime to see if it's possible
> to violate a lock that has been "granted". Interesting. This is the
> most promising suggestion I've heard so far. I'm going to run this by
> the sqlite people.
I thought, on Linux at least, that some combination of the cache manager
and the generic file system layer caused byte-range locking to work on the
local host even though other hosts wouldn't see the lock.
Russ Allbery (firstname.lastname@example.org) <http://www.eyrie.org/~eagle/>