[RFC][glibc PATCH] fcntl-linux.h: add new definitions and manual updates for open file description locks
Alfred M. Szmidt
ams at gnu.org
Wed Apr 23 13:00:06 MDT 2014
> Likewise. You infact write that it does get the lock information
> later in the document wrt. F_OFD_GETLK.
Sorry, I disagree here...GETLK is really a misnomer, IMO. TESTLK
would have been a better name.
GETLK are used is to "get the first lock".
It's a way to test whether a particular lock can be applied, and to
return information about a conflicting lock if it can't. If, for
instance there is no conflicting lock, then you don't "get" any
lock information back (l_type just gets reset to F_UNLCK).
While I kinda see your point, it isn't what GETLK does; it really does
get you information about the first lock -- you're not testing
anything. It is also the terminology used in the POSIX standard.
More information about the samba-technical