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Re: RE: [lwip-devel] opt.h - LWIP_EVENT_API


From: Simon Goldschmidt
Subject: Re: RE: [lwip-devel] opt.h - LWIP_EVENT_API
Date: Tue, 07 Dec 2010 05:18:42 +0100

Bill,

I think the main issue is that noone is really using the event API, or am I 
wrong there? In my years active with lwIP, I haven't seen a single mail on one 
of the lists mentioning the event mode...

It does save some code space and execution time in the stack, but at the 
downside of code portability: you have to combine *all* TCP communication into 
one function, which is really not optimal to me...


"Bill Auerbach" <address@hidden> wrote:
> I guess I feel compelled to ask, why doesn't the code just use 
> 
> #if ! LWIP_EVENT_API
> 
> Where it uses
> 
> #if LWIP_CALLBACK_API

That's a good question.

> 
> Why isn't it:
> 
> #define LWIP_EVENT_API (! NO_SYS)
> #define LWIP_CALLBACK_API (NO_SYS)

Because these have nothing to do which each other? I do use NO_SYS but I would 
never use the even API, I guess (for reason mentioned above).

Simon
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