[Olsr-dev] [PATCH RFC v1 0/4] Smart Gateway dynamic bandwidth

[Henning Rogge]

On 05/10/2012 11:28 PM, Ferry Huberts wrote:
>
>
> On 10-05-12 23:03, Hans-Christoph Steiner wrote:
>>
>> Given that it is highly unlikely that a file would change on a time
>> scale less than 1ms, I think its safe to use the generic versions, at
>> least on other platforms, no? I think you need a special Linux kernel
>> to get thread/process time slices with smaller than 1-2ms anyhow.
>
> that's not the point
> mtime is in _seconds_ accuracy.
> a file can very easily change within a second...

Yes, but we only need the last change. So we could record the "last 
time" it changed and reload it as soon as its more than one second ago.

We could just use two timers... one that regularly checks if mtime 
changed. If it changed, we start a second timer with a delay of 1 
second, which reloads the file.

The HNAs are only sent every 5-60 seconds anyway, so there is no need to 
hurry.

Henning Rogge

-- 
Diplom-Informatiker Henning Rogge , Fraunhofer-Institut für
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