HM2 wrote:
Why then is the sys_now() prototype in sys.h ? To me that would suggest
that the function belongs in sys.c
If you want the function in arch_sys.c, why isn't the prototype in
arch_sys.h ?
Oh, I'm sorry I haven't mentioned that, but sys.h is a core file of lwIP
while sys_arch.h isn't: it's a file every port has to provide. As a
consequence of that, a prototype used in lwIP core cannot be put into
sys_arch.h, as it isn't included in the core files. To put it simple for
port-specific functions: core headers = prototypes, port file =
implementation!
>From what I can tell the types required that are missing come from
sys/time.h in Unix which does not exist in the lwIP file set. So those
items are going to need to be added somewhere, I guess in sys_arch.h
_Or_, you could just put the include at the top of sys_arch.c, where the
function sys_(unix_)now() is implemented. Oh, wait, someone else already
had that idea:
http://cvs.savannah.gnu.org/viewvc/contrib/ports/unix/sys_arch.c?revision=1.25&root=lwip&view=markup
Sorry to be joking. To make yourself familiar with lwIP core vs. port it
would help to take a look at the contrib module and the example ports to
run lwIP under unix/linux and win32 (aka. windows). I can't remember my
learning curve with lwIP but I know documentation is not the highest
priority as with most open source projects ;-) However, I hoped that the
wiki + source code in the contrib module provided some guidance...
Simon
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