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Message #81898
[Bug 1460970] Re: DeferredDelete events not handled in time when created by GLib dispatched events
** Branch linked: lp:~lukas-kde/gsettings-qt/queued-processing
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https://bugs.launchpad.net/bugs/1460970
Title:
DeferredDelete events not handled in time when created by GLib
dispatched events
Status in qtbase-opensource-src package in Ubuntu:
Confirmed
Bug description:
DeferredDelete events are handled only for the main loop "level" that
object->deleteLater() was called in. Events dispatched directly from
GLib don't pass through qt's dispatching, thus getting a level of 0,
which means that they aren't handled until the program exits (i.e., as
long as level 0 exists).
This is causing apparent memory leaks in long-running applications.
We're working around this by using queued signal connections or
calling sendPostedEvents(). For example in
https://code.launchpad.net/~lukas-kde/gsettings-qt/queued-
processing/+merge/259883
Upstream: https://bugreports.qt.io/browse/QTBUG-32859
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References