Method Stdio.Fd()->tcflush()
- Method tcflush
 booltcflush(string|voidflush_direction)- Description
 Flush queued terminal control messages.
- Parameter 
flush_direction "TCIFLUSH"Flush received but not read.
"TCOFLUSH"Flush written but not transmitted.
"TCIOFLUSH"Flush both of the above. Default.
- Returns
 Returns
1on success and0(zero) on failure.- See also