Function tcflush

lib/termios.c:2961–3043

----------------------------------------------------------*/

int tcflush(int fd, int queue_selector)
{
    struct termios_list *index;
    int old_flag;

    ENTER("tcflush");

    index = win32_serial_find_port(fd);

    if (!index)
    {
        LEAVE("tclflush");
        return (-1);
    }

    old_flag = index->event_flag;
    /*
        index->event_flag &= ~EV_TXEMPTY;
        SetCommMask( index->hComm, index->event_flag );
        index->tx_happened = 1;
    */

    index->tx_happened = 1;

    switch (queue_selector)
    {
    case TCIFLUSH:
        if (!PurgeComm(index->hComm, PURGE_RXABORT | PURGE_RXCLEAR))
        {
            goto fail;
        }

        break;

    case TCOFLUSH:
        if (!PurgeComm(index->hComm, PURGE_TXABORT | PURGE_TXCLEAR))
        {
            goto fail;
        }

        break;

    case TCIOFLUSH:
        if (!PurgeComm(index->hComm, PURGE_TXABORT | PURGE_TXCLEAR))
        {
            goto fail;
        }

        if (!PurgeComm(index->hComm, PURGE_RXABORT | PURGE_RXCLEAR))
        {
            goto fail;
        }

        break;

    default:
        /*
                    set_errno( ENOTSUP );