hello,
I am looking in plugin implementation to have deep understand about it. my objective is to implement the "sendmsg" function.
i was able to mange it but when i am compiling i got error message tell me that the " struct msghdr and iovec" were defined twice ! .
I add the the definition of struct msghdr and struct iovec in /include /lwip/lwip/sockets.h and they are already defined in /libc/sys/socket.h .
i am really confused since there are many data types defined in the both headers (e.g sockadd) and libc_lwip was never complained !
best,
Hello Mohammad,
the libc_lwip plugin handles the multiple definition problem by renaming the lwip functions at the top of 'plugin.cc'. For your new types you might need to add lines like
#define msghdr lwip_msghdr
and
#undef msghdr
at the locations where this is already done for other types like 'sockaddr'.
Regards, Christian
Dear Christian, Thank you very much.
2015-07-13 6:08 GMT-08:00 Christian Prochaska < christian.prochaska@...1...>:
Hello Mohammad,
the libc_lwip plugin handles the multiple definition problem by renaming the lwip functions at the top of 'plugin.cc'. For your new types you might need to add lines like
#define msghdr lwip_msghdr
and
#undef msghdr
at the locations where this is already done for other types like 'sockaddr'.
Regards, Christian
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Christian Prochaska -
Mohammad Hamad