Class Lwt_engine.select_based

Abstract class for engines based on a select-like function.

inherit t
method private virtual select : Unix.file_descr list -> Unix.file_descr list -> float -> Unix.file_descr list * Unix.file_descr list

select fds_r fds_w timeout waits for either:

  • one of the file descriptor of fds_r to become readable
  • one of the file descriptor of fds_w to become writable
  • timeout to expire

and returns the list of readable file descriptor and the list of writable file descriptors.