[ENet-discuss] Platforms other then Windows and *nix?

[Doug Warren]

You can have timing without having a real time clock.  Real time clocks
strongly imply persistence between power cycles.


On Fri, Aug 9, 2013 at 4:35 AM, Ruud van Gaal <ruud at racer.nl> wrote:

> Running ENet without some kind of timing? I'd say that would be pretty
> hopeless of trying to achieve, as ENet is targeted to handling resends of
> packets. For which you need, well, something that is time to make any sense.
>
>
> On Thu, Aug 8, 2013 at 11:00 PM, Doug Warren <dwarren at thebigwave.net>wrote:
>
>> And actually from Patricks point of view that's even worse.  What if the
>> embeded device has no RTC then every random seed on startup would be the
>> same.  Perhaps enet_random_entropy() in each platform would be more clear.
>>
>>
>> On Thu, Aug 8, 2013 at 1:18 PM, Lee Salzman <lsalzman at gmail.com> wrote:
>>
>>> Not quite, enet_time_get() is for returning a running time counter, and
>>> is not really intended for providing a time-differentiated random seed. If
>>> you start up enet in quick succession making connections, then the random
>>> seeds can more easily accidentally overlap. The idea here is to get actual
>>> time in seconds so that on successive startups of enet the chance of
>>> collisions is much smaller. And it's intended that time() is pretty
>>> standard, and originally that's all that was used... Except that Win32 in
>>> its usual rebelliousness, doesn't quite like this without linking against
>>> more extra libraries, so I opted for timeGetTime() there. Chill out. It's
>>> not the end of the world.
>>>
>>>
>>> On 08/08/2013 10:56 PM, Patrick Klos wrote:
>>>
>>>> On 8/8/2013 2:00 PM, Doug Warren wrote:
>>>>
>>>>> You'd have to define your terms a bit better.  It's straight C, if you
>>>>> have berkley sockets and anything even vaguely resembling POSIX there
>>>>> should be no need for extra support.  I use the same build scripts for
>>>>> iOS/Android/OSX/Linux.
>>>>>
>>>>
>>>> The platform in question uses lwIP <http://savannah.nongnu.org/**
>>>> projects/lwip/ <http://savannah.nongnu.org/projects/lwip/>> (a
>>>> lightweight IP stack).  Not real close to POSIX, but the basic functions
>>>> are there.  It's not quite _extra_ support, but it's _different_ support.
>>>>  I have it essentially working.
>>>>
>>>>
>>>>  https://github.com/lsalzman/**enet/blob/master/host.c<https://github.com/lsalzman/enet/blob/master/host.c>shows a single check for a platform specific check regarding how to get a
>>>>> uint32 timestamp.
>>>>>
>>>>
>>>> Which is completely unnecessary when the platform abstraction layer
>>>> (win32.c and unix.c) provides the enet_time_get() function!?!  It doesn't
>>>> make sense why that function wouldn't be used?
>>>>
>>>> Patrick
>>>>
>>>>
>>>>
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>>
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