Review Request 121599: Fix crash in KIO due to exposing inconsistent views of internal data.

[David Edmundson]

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+1 from me.

- David Edmundson


On Feb. 28, 2015, 10:49 p.m., Simeon Bird wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/121599/
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> (Updated Feb. 28, 2015, 10:49 p.m.)
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> 
> Review request for KDE Frameworks, Aleix Pol Gonzalez and David Faure.
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> Repository: kio
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> Description
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> Fix crash in KIO due to exposing inconsistent views of internal data.
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> This can be triggered by renaming a directory while one of the files in it is open in gwenview.
> 
> It occurs because when KDirListerCache::emitRedirections is called,
> itemsInUse contains the old url. However, KDirLister::Private::redirect
> changes lstDirs to the new url. Thus at this point lstDirs contains an
> item not in itemsInUse, which causes an assertion if forgetDirs is
> called.
> 
> In gwenview, the redirection signal is connected to openURL. This calls
> forgetDirs, and causes the assertion.
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> The solution: update itemsInUse *before* emitting redirections.
> 
> This fixes the crash, but gwenview opens the first file in
> the new directory instead of the file open before renaming.
> This is probably an unrelated gwenview bug.
> 
> This is the same as reviewboard 117345, but on the KF5 kio repository and with a test case.
> 
> While I was doing this I also fixed a minor bug in the test suite (which is a separate commit).
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> Diffs
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>   autotests/kdirlistertest.h 70fd16f 
>   autotests/kdirlistertest.cpp b588e5b 
>   src/core/kcoredirlister.cpp f5c5627 
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> Diff: https://git.reviewboard.kde.org/r/121599/diff/
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> Testing
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> Tests run
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> 
> Thanks,
> 
> Simeon Bird
> 
>

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