No need to allocate (and initialize to 0) a 10 MiB buffer for each files, even
when most files are much smaller than that.
So make sure the buffer that we allocate is not bigger than the file size.
And Also 10 MiB is a bit big for a buffer. 500 KiB should be more than enough.
(Too big allocations can cause problem because of memory fragmentation and such)
We first need to set the abort flag to csync and then aborting the discovery
job, otherwise, the discovery thread could start a new job in the mean time.
We also need to make sure that the thread has existed before we destroy the
exclude list.
Events from the crash reporter suggest that the QNAM and its
child replies might get deleted before returning from this method
and the only possible cause we can see is that the inner event
loop has something to do with it.
Try keeping a ref on the QNAM while in this method to make sure
that it won't get deleted by the inner event loop.
Same fix as in commit 60c101d9
From the crash reporter:
Crash
EXCEPTION_ACCESS_VIOLATION_READ at 0x4
qnetworkreply.cpp in QNetworkReply::request at line 476
propagateupload.cpp in OCC::PUTFileJob::slotTimeout at line 100
moc_abstractnetworkjob.cpp in OCC::AbstractNetworkJob::qt_static_metacall at line 98
qobject.cpp in QMetaObject::activate at line 3716
moc_qtimer.cpp in QTimer::timeout at line 192
qtimer.cpp in QTimer::timerEvent at line 247
qobject.cpp in QObject::event at line 1267
qapplication.cpp in QApplicationPrivate::notify_helper at line 3722
qapplication.cpp in QApplication::notify at line 3505
qcoreapplication.cpp in QCoreApplication::notifyInternal at line 932
FolderDefinition::save and load escapes the alias. We also need to escape
it when we remove it.
New folder can't be created with alias that needs escaping, but old folder
from old config may still exist, and we must allow user to delete them.
For issue #4927:
On Windows 10, we get a notification after the sync is finished for file that were
just downloaded. The guard we have against our "own changes" are only working when
the sync is running and the OwncloudPropagator still alive.
Setting the Environment variable only for owncloud makes in inconsistant with
other Qt application running at the same time.
The users can still set it themself for the whole desktop if they wish.
Addresses #4840
