Increasing FD_SETSIZE
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Published on 2012-09-30T15:32:23Z
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2012/09/30
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I need to increase the FD_SETSIZE value from 1024
to 4096
. I know it'd be better to use poll()/epoll()
but I want to understand what are pros/cons. The main question is: have I to recompile glibc
? I read several thread where the change of .h after changing FD_SETSIZE
works recompiling only the user application. Reading the glibc
code (and the kernel too), actually it seems to me that if I want to use select(), FD_* macro and so on, I have to recompile all because the size of fd_set
is changed. At this point I have to recompile all not only my application because if in the system there is an another "common" application that uses select and friends, I could have problem. Am I right?
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