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vim-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)
cb574f4154
This commit is contained in:
Jan Edmund Lazo
2019-07-20 18:28:16 -04:00
parent 84faeb07d0
commit 0519a75f6e
7 changed files with 29 additions and 14 deletions
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23
src/nvim/screen.c
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@@ -6557,6 +6557,21 @@ void grid_del_lines(ScreenGrid *grid, int row, int line_count, int end, int col,
return;
}
// Return true when postponing displaying the mode message: when not redrawing
// or inside a mapping.
bool skip_showmode(void)
{
// 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.
//
@@ -6588,12 +6603,8 @@ int showmode(void)
|| restart_edit
|| 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;