Messages in this thread | | | Date | Fri, 8 Apr 2022 14:58:52 +0300 | From | Andy Shevchenko <> | Subject | Re: [PATCH v2 2/3] tty: Add lookahead param to receive_buf |
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On Fri, Apr 08, 2022 at 02:39:53PM +0300, Ilpo Järvinen wrote: > After lookahead for XON/XOFF characters is added by the next > patch, the receive side needs to ensure the flow-control > actions are not retaken later on when those same characters > get read by TTY. > > Thus, pass lookahead count to receive_buf and skip > flow-control character actions if already taken for the > character in question. Lookahead count will become live after > the next patch.
...
> + if (c == STOP_CHAR(tty)) { > + if (!lookahead_done)
But now it can be as below
if (c == STOP_CHAR(tty) && !lookahead_done)
> + stop_tty(tty); > + } else if ((c == START_CHAR(tty) && !lookahead_done) || > (tty->flow.stopped && !tty->flow.tco_stopped && I_IXANY(tty) && > c != INTR_CHAR(tty) && c != QUIT_CHAR(tty) && > c != SUSP_CHAR(tty))) {
-- With Best Regards, Andy Shevchenko
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