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patch 8.2.1905: the wininfo list may contain stale entries

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Problem:    The wininfo list may contain stale entries.
Solution:   When closing a window remove any other entry where the window
            pointer is NULL.
This commit is contained in:
Bram Moolenaar
2020-10-25 17:55:09 +01:00
parent 89b693e562
commit 4882d98339
4 changed files with 39 additions and 8 deletions
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19
src/window.c
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@@ -5015,7 +5015,26 @@ win_free(
FOR_ALL_BUFFERS(buf)
FOR_ALL_BUF_WININFO(buf, wip)
if (wip->wi_win == wp)
{
wininfo_T *wip2;
// If there already is an entry with "wi_win" set to NULL it
// must be removed, it would never be used.
for (wip2 = buf->b_wininfo; wip2 != NULL; wip2 = wip2->wi_next)
if (wip2->wi_win == NULL)
{
if (wip2->wi_next != NULL)
wip2->wi_next->wi_prev = wip2->wi_prev;
if (wip2->wi_prev == NULL)
buf->b_wininfo = wip2->wi_next;
else
wip2->wi_prev->wi_next = wip2->wi_next;
free_wininfo(wip2);
break;
}
wip->wi_win = NULL;
}
#ifdef FEAT_SEARCH_EXTRA
clear_matches(wp);