Review Request 110834: Cache the result of the KDE::stat calls in KDirListerCache::slotFileDirty

[Dawit Alemayehu]

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http://git.reviewboard.kde.org/r/110834/
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(Updated June 8, 2013, 4:16 p.m.)


Review request for kdelibs and David Faure.


Changes
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Use QCache instead of QHash.


Description
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This patch, inspired by the issue reported in bug# 317676, attempts to cache and reuse the original result from the stat call in KDirListerCache::slotFileDirty. Since that stat call is only needed to determine whether the "dirty" resource is a file or directory, caching the result helps us avoid the potential for tons of KDE::stat calls. The stat will happen if you for example copy or download a large file into a local folder while that folder is being viewed in a file browsing app such as dolphin or konqueror. The cached information is removed if the resource being monitored is deleted or renamed.


This addresses bug 317676.
    http://bugs.kde.org/show_bug.cgi?id=317676


Diffs (updated)
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  kio/kio/kdirlister_p.h a78cc3c 
  kio/kio/kdirlister.cpp a721673 

Diff: http://git.reviewboard.kde.org/r/110834/diff/


Testing
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The patch was tested by the bug reporter and it fixed the issue for him.


Thanks,

Dawit Alemayehu

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