Binary IO

[Peter Simons]

Simon Marlow writes:

 >> hPutBufNonBlocking :: Handle -> Ptr a -> Int -> IO Int
 >> hGetBufNonBlocking :: Handle -> Ptr a -> Int -> IO Int

 > You have these in GHC.IO at the moment.

I know. ;-)


 > These are also rather more difficult to implement than
 > the single-byte versions, so I can't see nhc98 or Hugs
 > implementing them any time soon.

What is difficult to implement about these functions? Aren't
they just wrappers for read(2) and write(2)?

Peter