mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-12-28 07:12:30 -05:00
a43c524252
QWaylandWindow::handleUpdate could create thousands of pending frame callbacks, causing compositor to terminate client connection. https://bugreports.qt.io/browse/QTBUG-81504 * gnu/packages/patches/qtwayland-dont-recreate-callbacks.patch: New file. * gnu/packages/patches/qtwayland-cleanup-callbacks.patch: New file. * gnu/local.mk (dist_patch_DATA): Adjust accordingly. * gnu/packages/qt.scm (qtwayland)[source](patches): Add patches.
76 lines
3.3 KiB
Diff
76 lines
3.3 KiB
Diff
From cbc74ba6d7186457d8d07183272e952dee5f34f9 Mon Sep 17 00:00:00 2001
|
|
From: Georges Basile Stavracas Neto <gbsneto@gnome.org>
|
|
Date: Thu, 27 May 2021 19:55:04 -0300
|
|
Subject: [PATCH] Client: Don't always recreate frame callbacks
|
|
|
|
The main QWaylandWindow method that is executed when handling updates is
|
|
QWaylandWindow::handleUpdate(). This method always, unconditionally queues
|
|
a frame callback, regardless of whether any other one is already queued.
|
|
|
|
On some circumstances, e.g. when a window is hidden or completely obscured
|
|
by other windows, it stops receiving frame callbacks from the compositor.
|
|
However, QWaylandWindow would continue to request for them, which eventually
|
|
fills up the Wayland socket, and causes the application to crash.
|
|
|
|
This can be avoided by checking if the platform window is already waiting
|
|
for a frame callback, before queueing another one.
|
|
|
|
In QWaylandWindow::handleUpdate(), check if mWaitingForFrameCallback is true
|
|
before queueing frame callbacks, and early return if that's the case.
|
|
|
|
The XDG-shell test needed to be updated for this: The mock compositor is
|
|
not responding to any frame callbacks, so the window will be unexposed,
|
|
no longer get paint events and therefore not trigger any commit. This
|
|
worked by accident before because we were issuing updates quickly enough
|
|
to reset the timer before it had a chance to unexpose the window. The
|
|
easiest fix is just to disable the dependency on frame callbacks in
|
|
this test, since that is clearly not what it's testing.
|
|
|
|
Task-number: QTBUG-81504
|
|
Change-Id: Ieacb05c7d5a5fcf662243d9177ebcc308cb9ca84
|
|
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
|
|
Reviewed-by: Georges Basile Stavracas Neto <gbsneto@gnome.org>
|
|
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
|
|
---
|
|
src/client/qwaylandwindow.cpp | 4 ++++
|
|
tests/auto/client/xdgshell/tst_xdgshell.cpp | 2 ++
|
|
2 files changed, 6 insertions(+)
|
|
|
|
diff --git a/src/client/qwaylandwindow.cpp b/src/client/qwaylandwindow.cpp
|
|
index a708afce..d83d5169 100644
|
|
--- a/src/client/qwaylandwindow.cpp
|
|
+++ b/src/client/qwaylandwindow.cpp
|
|
@@ -1357,6 +1357,10 @@ void QWaylandWindow::requestUpdate()
|
|
void QWaylandWindow::handleUpdate()
|
|
{
|
|
qCDebug(lcWaylandBackingstore) << "handleUpdate" << QThread::currentThread();
|
|
+
|
|
+ if (mWaitingForFrameCallback)
|
|
+ return;
|
|
+
|
|
// TODO: Should sync subsurfaces avoid requesting frame callbacks?
|
|
QReadLocker lock(&mSurfaceLock);
|
|
if (!mSurface)
|
|
diff --git a/tests/auto/client/xdgshell/tst_xdgshell.cpp b/tests/auto/client/xdgshell/tst_xdgshell.cpp
|
|
index 1d2a2014..962093c7 100644
|
|
--- a/tests/auto/client/xdgshell/tst_xdgshell.cpp
|
|
+++ b/tests/auto/client/xdgshell/tst_xdgshell.cpp
|
|
@@ -138,6 +138,7 @@ void tst_xdgshell::configureSize()
|
|
|
|
void tst_xdgshell::configureStates()
|
|
{
|
|
+ QVERIFY(qputenv("QT_WAYLAND_FRAME_CALLBACK_TIMEOUT", "0"));
|
|
QRasterWindow window;
|
|
window.resize(64, 48);
|
|
window.show();
|
|
@@ -186,6 +187,7 @@ void tst_xdgshell::configureStates()
|
|
QCOMPARE(window.windowStates(), Qt::WindowNoState);
|
|
QCOMPARE(window.frameGeometry().size(), windowedSize);
|
|
// QCOMPARE(window.frameGeometry().topLeft(), QPoint()); // TODO: this doesn't currently work when window decorations are enabled
|
|
+ QVERIFY(qunsetenv("QT_WAYLAND_FRAME_CALLBACK_TIMEOUT"));
|
|
}
|
|
|
|
void tst_xdgshell::popup()
|
|
--
|
|
2.38.1
|
|
|