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

Ferry Huberts (spam-protected)
Thu May 10 23:28:00 CEST 2012



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...

>
> .hc
>
> On May 10, 2012, at 3:49 PM, Ferry Huberts wrote:
>
>>
>> It's not a typo.
>> It appears that this is a linux extension: it provides nanosecond accuracy to stat system calls.
>>
>> On 10-05-12 21:05, Hans-Christoph Steiner wrote:
>>>
>>> Also, it looks like the Mac OS X build issue is actually caused by a typo in the code:
>>>
>>> src/gatewaySpeedFile.c: In function ‘readGatewaySpeedFile’:
>>> src/gatewaySpeedFile.c:124: error: ‘struct stat’ has no member named ‘st_mtim’
>>> src/gatewaySpeedFile.c:134: error: ‘struct stat’ has no member named ‘st_mtim’
>>> src/gatewaySpeedFile.c:134: error: ‘struct stat’ has no member named ‘st_mtim’
>>>
>>> I believe the struct element is called st_mtime not st_mtim.  Both Ubuntu and Mac OS X have stat.st_mtime, but I find no reference to stat.st_mtim.
>>>
>>> .hc
>>>
>>> On May 10, 2012, at 2:58 PM, Henning Rogge wrote:
>>>
>>>> At the moment the whole smart gateway system is linux only too... ;)
>>>>
>>>> Henning
>>>>
>>>> On Thu, May 10, 2012 at 8:54 PM, Ferry Huberts<(spam-protected)>   wrote:
>>>>>
>>>>>
>>>>> ok, then.
>>>>> Tomorrow I'll refactor it into a plugin but I'll make it linux only.
>>>>> It people want it on other platforms as well, they can make it build
>>>>> themselves ;-)
>>>>>
>>>>> On 10-05-12 20:46, Henning Rogge wrote:
>>>>>>
>>>>>> As they can with plugins... its not that it needs to be a linux-only
>>>>>> plugin.
>>>>>>
>>>>>> Henning
>>>>>>
>>>>>> On Thu, May 10, 2012 at 8:25 PM, Ferry Huberts<(spam-protected)>    wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On 10-05-12 20:22, Henning Rogge wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>> On Thu, May 10, 2012 at 7:17 PM, Ferry Huberts<(spam-protected)>
>>>>>>>>   wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Thinking about this...
>>>>>>>>>
>>>>>>>>> I added this to the core, but what do you guys think of making this a
>>>>>>>>> plugin? I think that should be possible, right Henning?
>>>>>>>>
>>>>>>>>
>>>>>>>> Might work as a plugin I think, the only think it does in the core is
>>>>>>>> set the link up/down speed. That should be easy to do from a plugin
>>>>>>>> during runtime.
>>>>>>>>
>>>>>>>>> However, I'm _not_ saying I want to make it a plugin because I think
>>>>>>>>> this
>>>>>>>>> should be part of the core, but a plugin might mitigate some of the
>>>>>>>>> objections.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> Whats the advantage to put it into the core?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> then all platforms can benefit from it
>>>>>>>
>>>>>>>>
>>>>>>>> Henning
>>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Ferry Huberts
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>> --
>>>>> Ferry Huberts
>>>>
>>>>
>>>>
>>>> --
>>>> Steven Hawkings about cosmic inflation: "An increase of billions of
>>>> billions of percent in a tiny fraction of a second. Of course, that
>>>> was before the present government."
>>>>
>>>> --
>>>> Olsr-dev mailing list
>>>> (spam-protected)
>>>> https://lists.olsr.org/mailman/listinfo/olsr-dev
>>
>> --
>> Ferry Huberts

-- 
Ferry Huberts




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