GNU bug report logs - #17497
24.4.50; TTY menu glitches

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Package: emacs;

Reported by: Dmitry Antipov <dmantipov <at> yandex.ru>

Date: Thu, 15 May 2014 12:28:01 UTC

Severity: normal

Tags: patch

Found in version 24.4.50

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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Message #98 received at 17497 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: rgm <at> gnu.org
Cc: dmantipov <at> yandex.ru, 17497 <at> debbugs.gnu.org
Subject: Re: bug#17497: 24.4.50; TTY menu glitches
Date: Sun, 01 Jun 2014 18:11:08 +0300

One more idea: can you try decreasing the number 900 in this snippet
from dispnew.c:

	  if (FRAME_TERMCAP_P (f))
	    {
	      /* Flush out every so many lines.
		 Also flush out if likely to have more than 1k buffered
		 otherwise.   I'm told that some telnet connections get
		 really screwed by more than 1k output at once.  */
	      FILE *display_output = FRAME_TTY (f)->output;
	      if (display_output)
		{
		  ptrdiff_t outq = __fpending (display_output);
		  if (outq > 900
		      || (outq > 20 && ((i - 1) % preempt_count == 0)))
		    fflush (display_output);
		}
	    }

Or maybe even make display_output line-buffered.  I wonder if that has
any effect on the problem.

TIA
This bug report was last modified 5 years and 338 days ago.

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