[lwip-devel] [task #7212] Add Mutex concept in sys_arch

[Simon Goldschmidt]

Follow-up Comment #6, task #7212 (project lwip):

[Frédéric's task design]

That's the same with me: tcpip isn't the highest prio. But it still should be
efficient!

About the direction of this task: where exactly do you want to use these
semaphores? It seems like Thomas wants to change memp.c to use semaphores, a
thing we just removed a while ago, since it is rather inefficient for embedded
systems.

Instead, I'd propose to make different defines (e.g.
LOCK_MEMP()/UNLOCK_MEMP() or something like that), which could be defined to
SYS_ARCH_PROTECT or to file-scope mutexes.

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