[lwip-devel] [bug #19222] timeout in sys_mbox_fetch

[Dmitry Potapov]

Follow-up Comment #5, bug #19222 (project lwip):

BTW, who said sys_arch_mbox_fetch() sets `msg' to NULL when it returns
SYS_ARCH_TIMEOUT? I don't think that all ports do that. As result, you can
end up with undefined value in `msg'. Of course, it is easy to fix by adding
*msg = NULL at the beginning... but it just another indication that this
approach is wrong...

In fact, if you look at sys_sem_wait_timeout, it uses sys_timeout() to
implement timeout. So, it would be more consistent to implement
sys_mbox_fetch_timeout() in the same way using sys_timeout().

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