[Samba] File locking with smbd
Gerald (Jerry) Carter
jerry at samba.org
Tue Oct 26 13:01:20 GMT 2004
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Ron Cococcia wrote:
| Does smbd have the capability to lock files that it has in
| use? Is it possible that if it were to lock files, that
| I misconfigured/miscompiled smbd? I'd prefer to not use a
| kludge like popen("smbstatus") or popen("lsof"). I might
| consider examining the last modification timestamp on the
| file too, but I don't know if there might be other
| cases where that wouldn't work.
smbd maps Windows byte range locks onto POSIX locks.
kernel oplock support could help you find out if
the client has a lease on the file (through smbd).
I doubt you are guaranteed that the windows client
has an oplock or a byte range lock on the file you
are interested in (unless you know the client application
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