Re: FFI to poll()

Hi Kazu, On Sat, Feb 23, 2013 at 11:42:07AM +0900, Kazu Yamamoto wrote:

I'm now looking into a bug of the poll backend.

Great!

foreign import ccall safe "poll.h poll" c_poll :: Ptr PollFd -> CULong -> CInt -> IO CInt

The second argument is defined unsigned long on Linux. However, it is unsigned int on Mac and FreeBSD. I think this is a source of the bug which I'm looking into.

But this is not generic enough. Any suggestions to fix this?

According to my manpage, it's an nfds_t. Is that type as portable as poll is? Thanks Ian