D11590: Add mutex round static member used in a thread

[David Edmundson]

davidedmundson created this revision.
davidedmundson added a reviewer: Plasma.
Restricted Application added a project: Plasma.
Restricted Application added a subscriber: plasma-devel.
davidedmundson requested review of this revision.

REVISION SUMMARY
  BackgroundFinder runs in a separate thread, it uses a static QStringList cache
  It's perfectly plausible that two BackgroundFinders threads could run at once

TEST PLAN
  Old code didn't crash, it was a pure hypothetical.
  Works as before

REPOSITORY
  R120 Plasma Workspace

BRANCH
  davidedmundson/wallpaperrewrite

REVISION DETAIL
  https://phabricator.kde.org/D11590

AFFECTED FILES
  wallpapers/image/backgroundlistmodel.cpp
  wallpapers/image/backgroundlistmodel.h

To: davidedmundson, #plasma
Cc: plasma-devel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.kde.org/pipermail/plasma-devel/attachments/20180323/1ff0d2ac/attachment.html>