5.7.5 flush: Discared buffered input and/or output data

 

SYNOPSIS

#include <oskit/io/ttystream.h>

OSKIT_COMDECL flush(oskit_ttystream_t *tty, int queue_selector);

DESCRIPTION

This method discards any buffered output data that has not yet been transmitted, and/or any buffered input data that has not yet been read, depending on the queue_selector parameter. This method corresponds to the POSIX tcflush function; see the POSIX standard for details.

PARAMETERS

tty

The TTY stream object to flush.

queue_selector

Must be one of the following:

OSKIT_TCIFLUSH

Flush the input buffer.

OSKIT_TCOFLUSH

Flush the output buffer.

OSKIT_TCIOFLUSH

Flush the input and output buffers.

RETURNS

Returns 0 on success, or an error code specified in <oskit/error.h>, on error.