[lwip-devel] [patch #5778] Warning in opt.h about SO_REUSE

[Frédéric Bernon]

Follow-up Comment #3, patch #5778 (project lwip):

1. In fact, this patch is only to remove warning at build time. But, if
someone upgrades from an older version, there is two possibilities :

- he never define SO_REUSE, in this case, no warning at build time, and if he
execute his program, setsockopt will give a ENOPROTOOPT runtime error.

- he already set SO_REUSE to 1 in his lwipopts.h, in this case, he will get
the error message "SO_REUSE currently unavailable..." at build time. He just
have to remove SO_REUSE in his lwipiopts.h

2. I hope perhaps "someone" will fix the code (like you with APR_QUEUING).
But I even if the lwip current design is to tell "one thread at one netconn
(and thus socket) at a time", you can use SO_REUSEADDR to allow two
differents sockets to receive the same broadcast or multicast UDP "streams".

So, that's why I have propose this patch...


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