Review Request: Avoid terminating the thread in kio/kio/hostinfo.cpp

Commit Hook null at kde.org
Mon Aug 15 05:34:27 BST 2011


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This review has been submitted with commit caece88d2c5b5b6f0da3dc048878831814aab9f3 by Jekyll Wu to branch master.

- Commit


On Aug. 12, 2011, 3:45 a.m., Dawit Alemayehu wrote:
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> (Updated Aug. 12, 2011, 3:45 a.m.)
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> 
> Review request for kdelibs.
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> Summary
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> The attached patch is an alternate approach to address the issue of crashes that arise from terminating an active thread than the one proposed at https://git.reviewboard.kde.org/r/102179/. With this patch the function "QHostInfo::lookupHost(QString, int)" avoids the use of QThread::terminate with the following fairly simple changes:
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> - Connect its finished signal to its parent deleteLater slot in the ctor so that the thread is automatically deleted later.
> - Store the looked up DNS info in  the global cache to avoid unnecessary queries for the same request.
> - Check for cached DNS information and avoid doing reverse look ups before resorting to performing DNS queries in a separate thread.
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> Diffs
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>   kio/kio/hostinfo.cpp 344b1d8 
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> Diff: http://git.reviewboard.kde.org/r/102238/diff
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> Testing
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> Local unit testing code. Tested both failing and working DNS lookup scenarios.
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> Thanks,
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> Dawit
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>

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