[lwip-users] Ang: Re: wiki page Porting for an OS for 1.4.0

[ake . forslund]

Thanks for the feedback and clarification,

I've updated the text to the somewhat more convoluted:
sys_sem_t, sys_mbox_t, sys_thread_t all refer to the appropriate types, whether native OS versions or wrappers used to make them conform to what lwIP expects. Usualy these are typedefed directly to the systems corresponding types but if wrapper functions are used these may be just about anything. References to a list of pre-alloced objects is but one example.

/Åke
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Åke Forslund
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address@hidden skrev: -----

Till: Mailing list for lwIP users <address@hidden>
Från: "Simon Goldschmidt"
Sänt av: address@hidden
Datum: 2011-07-04 10:26
Ärende: Re: [lwip-users] wiki page Porting for an OS for 1.4.0

Martin Velek <address@hidden> wrote:
> In a sentence in the section "Final declarations for sys_arch.h" there
> is stated "sys_sem_t, sys_mbox_t, sys_thread_t all refer to pointers
> to the appropriate types, whether native OS versions or wrappers used
> to make them conform to what lwIP expects".
>
> However I think that "sys_sem_t, sys_mbox_t, sys_thread_t" are
> typedefs to the appropriate types, not pointers (in a C way).

Both is allowed: directly using the OS structs is faster, using pointers is nice if you want to prevent including the OS headers in cc.h/sys_arch.h.

Before 1.4.0, using pointers was the only possible way, I think.

Simon
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