[lwip-devel] [bug #28775] select/event_callback: only check select_cb_list on change

[Simon Goldschmidt]

Follow-up Comment #5, bug #28775 (project lwip):

> (for the same reasons as Frederic Bernon IIRC)

Could you tell us which reasons? I didn't hear from Frédéric for a while,
now...

I don't know about yet another option: the time the socket array-protection
would disable interrupts is *very* short! And I just shortened it more. By
unlocking and relocking step in the for-loop, this should really not be a
problem.

Did you mean locking the selectsem-list using LIGHTWEIGHT_PROT is not a good
idea? For this, it's the same as above, though.

The general idea is to *not* wait on a semaphore for every received packet -
that would not at all be lightweight to me!

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