[lwip-devel] mailbox implementation

[MaX]

Hi,

I'm planning to write a new implementation for mailbox mechanism. From the documentation I don't understand if lwip mailbox are multiple-producers-multiple-consumers (MPMC) or just single-producer-single-consumer (SPSC). 

In the second case I can target a lock-free CAS-free implementation with a grater benefit with respect of a more standard lock-free MPMC one. I would say from the lwip structure that the mailbox are all SPSC, but I

can not be 100% sure. Do you have any suggestion? 

Regards,

MaX