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kwin: use QMutableListIterator<T> for iteration in Compositor::performCompositing()

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the list is modified while being iterated over

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
This commit is contained in:
Ivailo Monev 2022-10-29 07:15:00 +03:00
parent ca6280368c
commit affb5c58de
1 changed files with 4 additions and 2 deletions
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6
kwin/composite.cpp
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@ -527,9 +527,11 @@ void Compositor::performCompositing()
// TODO ?
// this cannot be used so carelessly - needs protections against broken clients, the window
// should not get focus before it's displayed, handle unredirected windows properly and so on.
foreach (Toplevel *t, windows) {
QMutableListIterator<Toplevel*> windows_it(windows);
while (windows_it.hasNext()) {
const Toplevel *t = windows_it.next();
if (!t->readyForPainting())
windows.removeAll(t);
windows_it.remove();
}
QRegion repaints = repaints_region;