Review Request 127166: Fix xcb port of klauncher and clean up the code.

[Xuetian Weng]

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ping

- Xuetian Weng


On Feb. 24, 2016, 5:19 a.m., Xuetian Weng wrote:
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> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/127166/
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> (Updated Feb. 24, 2016, 5:19 a.m.)
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> Review request for KDE Frameworks, David Faure and Martin Gräßlin.
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> Repository: kinit
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> Description
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> The ported klauncher at least has two bugs:
> 1. IMHO, it should compare the cached display string with == instead of != (though != has been there since the old kdelibs, but it just doesn't look correct to me, what's the point of assign dpy = mCached_dpy when dpy_str != XDisplayString(dpy)? And what's the point use == in one place and != in other two places? ).
> 2. it might free the cached connection without setting mCached.conn back to nullptr, which could lead to double free or freeze when system logout.
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> This patch refactor the code a little bit with a helper function to update the cached connection instead of duplicate the same logic everywhere. getXCBConnection() will make sure the returned connection is error-free, reuse the cached connection if possible, and update the cached connection if needed.
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> Diffs
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>   src/klauncher/klauncher.h 31bfaaa 
>   src/klauncher/klauncher.cpp 7ea9da9 
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> Diff: https://git.reviewboard.kde.org/r/127166/diff/
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> Testing
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> Compiles, startup notify works.
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> Thanks,
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> Xuetian Weng
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>

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