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patch 8.1.0822: peeking and flushing output slows down execution

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Problem:    Peeking and flushing output slows down execution.
Solution:   Do not update the mode message when global_busy is set.  Do not
            flush when only peeking for a character. (Ken Takata)
This commit is contained in:
Bram Moolenaar
2019-01-25 22:29:57 +01:00
parent 970f5d39f2
commit cb574f4154
5 changed files with 29 additions and 13 deletions
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32
src/screen.c
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@@ -10109,6 +10109,26 @@ screen_del_lines(
return OK;
}
/*
* Return TRUE when postponing displaying the mode message: when not redrawing
* or inside a mapping.
*/
int
skip_showmode()
{
// Call char_avail() only when we are going to show something, because it
// takes a bit of time. redrawing() may also call char_avail_avail().
if (global_busy
|| msg_silent != 0
|| !redrawing()
|| (char_avail() && !KeyTyped))
{
redraw_cmdline = TRUE; // show mode later
return TRUE;
}
return FALSE;
}
/*
* Show the current mode and ruler.
*
@@ -10135,16 +10155,8 @@ showmode(void)
|| VIsual_active));
if (do_mode || reg_recording != 0)
{
/*
* Don't show mode right now, when not redrawing or inside a mapping.
* Call char_avail() only when we are going to show something, because
* it takes a bit of time.
*/
if (!redrawing() || (char_avail() && !KeyTyped) || msg_silent != 0)
{
redraw_cmdline = TRUE; /* show mode later */
return 0;
}
if (skip_showmode())
return 0; // show mode later
nwr_save = need_wait_return;