HomeSYNOPSIS
handle:flush()
DESCRIPTION
Discards any data present in the receive buffer, but not yet read by the application.
RETURN VALUE
On success, returns true. On failure, returns nil. In
case of an error, the error can be retrieved using rawio:lastError().
ERRORS
This function works only on TTY devices.
NOTES
You can never be sure that the receive buffer is empty afterwards, since data may arrive right after
the call to rawio:drain().
SEE ALSO
rawio:break, rawio:cts, rawio:dcd, rawio:device, rawio:drain, rawio:dsr, rawio:dtr, rawio:fd, rawio:name, rawio:rng, rawio:rts, rawio:rxcnt, rawio:setDtr, rawio:setRts, rawio:setupComm, rawio:start, rawio:stop, rawio:txcnt