Re: [lwip-users] Bug in netconn_alloc?

[Walter Saegesser]

Hi Simon

> The macro sys_mbox_set_invalid() is (like the name says) supposed 
> to set a pointer to an mbox to a known state so that we can later 
> check if that pointer is valid (mbox created) or invalid (mbox not
created).

> E.g. if you defined sys_mbox_t to "void*", then you would
> #define sys_mbox_set_invalid(mbox) (*mbox = NULL)

Thanks for the instructions. I completely misinterpreted the use of
sys_mbox_set_invalid / sys_sem_set_invalid. I thought you just wanted to
invalidate a previously valid mbox or sem.
Does 'sys_xxx_free' also have to invalidate the the mbox or sem, i.e.
*mbox = NULL or is this always done by a call to xxx_set_invalid?

Regards
Walter
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