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This is an automatically generated e-mail. To reply, visit:
<a href="http://git.reviewboard.kde.org/r/109339/">http://git.reviewboard.kde.org/r/109339/</a>
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<p style="margin-top: 0;">On March 11th, 2013, 9:32 a.m. UTC, <b>Giorgos Tsiapaliokas</b> wrote:</p>
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<a href="http://git.reviewboard.kde.org/r/109339/diff/1/?file=117777#file117777line858" style="color: black; font-weight: bold; text-decoration: underline;">plasmate/mainwindow.cpp</a>
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(Diff revision 1)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void MainWindow::loadProject(const QString &path)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">delete</span> <span class="n">m_konsoleWidget</span><span class="p">;</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">it should be
delete m_konsoleWidget;
m_konsoleWidget = 0;
after the delete the pointer is dangling,
of course since createKonsoleFor returns
either 0 or a valid pointer, we don't have an issue, *but* if in the future the code changes we might have a dangling pointer and this isn't good :)
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<p>On March 23rd, 2013, 1:48 a.m. UTC, <b>Tianyu Zhu</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I'm simply following the same pattern as the lines of code after it that initialize m_previwerwidget:
// initialize previewer
delete m_previewerWidget;
m_previewerWidget = createPreviewerFor(previewerType);
If we want to fix that the pointer is not being set to 0, then I believe we should make a earnest effort to find and fix all these cases.
Alternatively, we can use some sort of smart pointer with unique ownership semantics that will automatically delete and nullify the pointer if it is being reset.
Either way, I believe that change should happen in another patch, since it is a separate problem from the bug being fixed here.</pre>
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<p>On March 23rd, 2013, 1:50 a.m. UTC, <b>Tianyu Zhu</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I would just like to point out that QScopedPointer is a smart pointer meeting these requirements.</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Yes QScopedPointer makes sense.
Also QScopedPointer can be used for other private members such as m_previewerWidget(of course this is another patch set).
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<p>- Giorgos</p>
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<p>On March 7th, 2013, 2:10 p.m. UTC, Tianyu Zhu wrote:</p>
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<div>Review request for Plasma.</div>
<div>By Tianyu Zhu.</div>
<p style="color: grey;"><i>Updated March 7, 2013, 2:10 p.m.</i></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">If the old konsoleWidget is not deleted when loading a new project, it shows up along with a new one in the project view.
This also fixes a memory leak.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">It works on my machine: Thinkpad T520, Kubuntu 12.10, KDE 4.10.1</pre>
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<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="http://bugs.kde.org/show_bug.cgi?id=https://bugs.kde.org/show_bug.cgi?id=316276">https://bugs.kde.org/show_bug.cgi?id=316276</a>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>plasmate/mainwindow.cpp <span style="color: grey">(13234ec)</span></li>
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<p><a href="http://git.reviewboard.kde.org/r/109339/diff/" style="margin-left: 3em;">View Diff</a></p>
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