Structs
Functions
poll waits for one of a set of file descriptors to become ready to perform I/O.
(poll(2))
ppoll any(target_os = "android", target_os = "dragonfly", target_os = "freebsd", target_os = "linux")
ppoll() allows an application to safely wait until either a file
descriptor becomes ready or until a signal is caught.
(poll(2))