D14895: Plasmashell freezes when trying to get free space info from mounted remote filesystem after losing connection to it

[Oleg Solovyov]

McPain created this revision.
McPain added reviewers: broulik, ngraham.
Herald added a project: Plasma.
Herald added a subscriber: plasma-devel.
McPain requested review of this revision.

REVISION SUMMARY
  BUG: 397537
  
  Earlier plasmashell assumed that you'll get free space info immediately (which is not true in case of losing connection to server containing a mounted filesystem - statfs will wait for response forever and freeze everything since it's happening in main thread)
  
  I moved obtaining that info into different thread so that case won't freeze anything anymore.
  It creates exactly one thread per one path. If a path is already being processed, new thread won't be created.
  Also I implemented a timer used to notify about broken connection after 15 seconds.

REPOSITORY
  R120 Plasma Workspace

REVISION DETAIL
  https://phabricator.kde.org/D14895

AFFECTED FILES
  dataengines/soliddevice/CMakeLists.txt
  dataengines/soliddevice/soliddeviceengine.cpp
  dataengines/soliddevice/soliddeviceengine.h

To: McPain, broulik, ngraham
Cc: plasma-devel, ragreen, Pitel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
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