Messages in this thread | | | Date | Mon, 31 Aug 1998 18:23:20 -0400 (EDT) | From | Kenneth Albanowski <> | Subject | Re: VFS/fcntl() feature [PATCH] |
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On Mon, 31 Aug 1998, Stephen C. Tweedie wrote:
> Hi, > > On Sat, 29 Aug 1998 15:49:05 +0100, Jamie Lokier > <lkd@tantalophile.demon.co.uk> said: > > I do think poll() is the ideal place to add the extended functionality, > > not select(), as poll() has scope for new types of events to be added. > > Also, programs which use this mechanism would like to know at compile > > time if it's supported. Relying on unusual behaviour of select() on > > directories would mean these programs compile fine on other OSes or even > > older versions of Linux, but don't work properly. > > Yes. Any program using these features is going to have to check for > them at run-time anyway, because even if you compile under a kernel > which has the functionality, there's no guarantee that the program won't > get run under an older kernel.
More then that: they may not be available on all file systems. (Think about NFS.)
-- Kenneth Albanowski (kjahds@kjahds.com, CIS: 70705,126)
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