FD_READ

;;; Read from a file descriptor.
  ;;; Note: This is similar to `readv` in POSIX.
  (@interface func (export "fd_read")
    (param $fd $fd)
    ;;; List of scatter/gather vectors to which to store data.
    (param $iovs $iovec_array)
    ;;; The number of bytes read.
    (result $error (expected $size (error $errno)))
  )