Re: [lwip-devel] Change sys_arch_mbox_fetch to not return the time?

[Sylvain Rochet]

Hey Douglas,

On Wed, Jul 19, 2017 at 09:21:42PM +1000, Douglas wrote:
> It appears that the timer returned by sys_arch_mbox_fetch is unused, and
> that only the SYS_ARCH_TIMEOUT value is tested.
> 
> Might it be a legacy requirement to return the time. It would simplify
> sys_arch_mbox_fetch a little for at least some implementations to remove
> the requirement to return a time.
> 
> So would a patch to change the documentation for this function to remove
> the requirement to return a time be considered?

I asked the same thing in task #8995[1] :-)

"By the way, we do not use the time based sys_arch_sem_wait() return 
 value anymore, should we remove the burden from ports for doing so ? We 
 can keep compatibility by telling in the documentation it should return 
 0 (i.e. anything != SYS_ARCH_TIMEOUT) if a message arrived or 
 SYS_ARCH_TIMEOUT."

At least for me, we should, I removed returning the elapsed time in my 
port for quite a while.

Sylvain


[1] https://savannah.nongnu.org/patch/?8995

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