Hello all, As a Samba programming newbie, I've run onto a question that doesn't have an obvious answer in FAQ or googled literature. I need to lock large numbers of files on the server, and have Samba open requests block until they are released. I found references to "blocking locks" in references such as "Using Samba" (O'Reilly, 1999, 2003)
http://oreilly.com/catalog/samba/chapter/book/ch05_05.html but these refer to range locks, which are overkill for my application (I only need to check on open, not on every IO). Deny modes would seem to fill the bill, but I can't find whether blocking locks would work for them, and also they do not seem to be Linux-compatible on the server, and I suspect I may need that for efficiency's sake (a lot of files are being locked/unlocked). I downloaded samba-latest.tar.gz and noticed that source/smbd/blocking.c seems to respond to these by setting LOCK_MAND versions of flock states, which are available only for "sys_flock" and rumored not to affect normal Linux programming. Can file locks block a Samba open request? Can they be set by, or made to affect, Linux programming on the server (I don't care about NFS file opens, only local opens on the server)? Does this drive special Samba kernel code, or does smbd just operate in user space? TIA, Larry Dickson Cutting Edge Networked Storage -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
