System.Posix.IO.Select.MVar

Treat the POSIX select(2) function as an MVar CInt.

Documentation

select :: [Fd] -> [Fd] -> [Fd] -> Timeout -> IO (MVar CInt)

This version of select immediately returns and makes the return value of the select(2) call available as an MVar CInt. See select for argument information.

data Timeout

A timeout of Never tells select(2) to never time out, while Time s us sets the timeout parameters to s seconds and us microseconds.

Constructors

Never

Time Seconds Microseconds