[Kde-pim] Review Request 114341: Fix a bug in kmail that eats all cpu

[Raul Fernandes]

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http://git.reviewboard.kde.org/r/114341/
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Review request for KDEPIM.


Bugs: 323929
    http://bugs.kde.org/show_bug.cgi?id=323929


Repository: kdepim


Description
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The bug is described in https://bugs.kde.org/show_bug.cgi?id=323929.
The bug triggers several queries to akonadi to get the same information.
I think it is caused by the repeated connect() calls in initFolders() function (even using the Qt::UniqueConnection).
So everytime the function slotDefaultCollectionsChanged() is called, disconnect the signal to avoid accumulate multiple signals.
I think the right way is to rewrite the initFolders to call connect() only once.
Split initFolders() in 2 functions. One is called by kmail and another (with the connect()) called by slotDefaultCollectionsChanged().
For now, the disconnect() should be a good workaround for the (critical) bug.


Diffs
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  mailcommon/kernel/mailkernel.cpp 5b92778 

Diff: http://git.reviewboard.kde.org/r/114341/diff/


Testing
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Until now, it is ok here.


Thanks,

Raul Fernandes

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