Messages in this thread | | | From | (Miquel van Smoorenburg) | Subject | Re: NFS caching. | Date | 31 Oct 1999 13:43:19 +0100 |
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In article <cistron.199910311130.MAA02204@cave.bitwizard.nl>, Rogier Wolff <R.E.Wolff@BitWizard.nl> wrote: >2.2.x caches NFS accesses. I have a LED on the wall that indicates >that I have mail.
Cool ;)
>When I see it on, I want to read my Email. Is there >a way that I can foce a cache invalidate? It is now annoying to have >to wait something like 30 seconds before I can read Email that I know >is simply sitting in my mailbox...
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
Mike. -- First things first, but not necessarily in that order.
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