Messages in this thread | | | Date | Thu, 05 Aug 2010 15:34:13 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] [RFC] notify userspace about time changes |
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On 08/05/2010 03:22 PM, Kay Sievers wrote: > > I think that's really awkward interface, to pass file descriptor > numbers around and write them to magic sysfs files. > > I would very much prefer a file that contains the current time, and > wakes up possible users with a POLL_ERR on changes caused by some > other process. That works very well for things like /proc/mounts, is > easy to get, and does not need a full page of weird instructions to > get stuff done. :) >
Okay, what's wrong with having a file descriptor that gets *written to* on a notification? Why POLL_ERR?
-hpa
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