[lwip-devel] [patch #7855] Provide alternative timeout implementation

[Simon Goldschmidt]

Follow-up Comment #7, patch #7855 (project lwip):

> going back to cyclic timers would make it harder to run lwip 
> in setups where sleep is actually spent in hardware sleep with 
> a configured interrupt.

I can't follow that thought. As long as there's a way of telling lwIP how much
time has passed (this could even work by comparing return values of
sys_now()), it doesn't matter if you idle-loop or really sleep.

> Drift can occur on any platform with the "existing" lwIP
> design if SYS_ARCH_TIMEOUT is returned.

Of course. The question is whether that's a problem or not. The only problem I
see is the DHCP lease time, the rest of the timers shouldn't care for (rather
small) drift.

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