<table><tr><td style="">graesslin created this revision.<br />graesslin added a reviewer: Plasma on Wayland.<br />Restricted Application added a subscriber: plasma-devel.<br />Restricted Application added a project: Plasma on Wayland.</td><a style="text-decoration: none; padding: 4px 8px; margin: 0 8px 8px; float: right; color: #464C5C; font-weight: bold; border-radius: 3px; background-color: #F7F7F9; background-image: linear-gradient(to bottom,#fff,#f1f0f1); display: inline-block; border: 1px solid rgba(71,87,120,.2);" href="https://phabricator.kde.org/D1868" rel="noreferrer">View Revision</a></tr></table><br /><div><strong>REVISION SUMMARY</strong><div><p>So far for internal cleanup we mostly listen to QObject::destroyed.<br />
When a Resource gets unbind the wl_resource is set to null and the<br />
Resource gets deleteLater. This creates a short time frame when the<br />
Resource is still there, but the wl_resource is null. For most internal<br />
usages the Resource is completely useless at that point and should no<br />
longer be considered. So far it was still considered and could hit<br />
crashers, if a code path did not nullptr check. Unfortunately<br />
libwayland-server is not nullptr safe: if called with a null value it<br />
tends to crash.</p>
<p>So this check introduces a new signal unbound which can be listend to<br />
in addition to the destroyed signal. It's used in SeatInterface for<br />
DataDeviceInterface, where we experienced a crash related to that.</p></div></div><br /><div><strong>REPOSITORY</strong><div><div>rKWAYLAND KWayland</div></div></div><br /><div><strong>BRANCH</strong><div><div>resource-unbound</div></div></div><br /><div><strong>REVISION DETAIL</strong><div><a href="https://phabricator.kde.org/D1868" rel="noreferrer">https://phabricator.kde.org/D1868</a></div></div><br /><div><strong>AFFECTED FILES</strong><div><div>src/server/resource.cpp<br />
src/server/resource.h<br />
src/server/seat_interface.cpp</div></div></div><br /><div><strong>EMAIL PREFERENCES</strong><div><a href="https://phabricator.kde.org/settings/panel/emailpreferences/" rel="noreferrer">https://phabricator.kde.org/settings/panel/emailpreferences/</a></div></div><br /><div><strong>To: </strong>graesslin, Plasma on Wayland<br /><strong>Cc: </strong>plasma-devel, sebas<br /></div>