Messages in this thread | | | Subject | Re: NFS caching. | From | Trond Myklebust <> | Date | 31 Oct 1999 14:38:39 +0100 |
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>>>>> " " == Miquel van Smoorenburg <miquels@cistron.nl> writes:
> fd = open("/var/spool/mail/rogier", O_RDONLY); if (lockf(fd, > F_TLOCK, 0) == 0) > lockf(fd, F_ULOCK, 0); > fstat(fd, &st); .....
> Setting or trying to set a POSIX lock on a filedescriptor > invalidates the NFS cache - all programs dealing with mail > should use this
Note: the cache is only invalidated if the lock operation succeeds. Trying and failing isn't good enough.
Cheers, Trond
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