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This is an automatically generated e-mail. To reply, visit:
<a href="http://svn.reviewboard.kde.org/r/6022/">http://svn.reviewboard.kde.org/r/6022/</a>
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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;">Proposing a slightly different approach.</pre>
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<a href="http://svn.reviewboard.kde.org/r/6022/diff/1/?file=42024#file42024line311" style="color: black; font-weight: bold; text-decoration: underline;">trunk/KDE/kdelibs/kdecore/jobs/kjob.cpp</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void KJob::setPercent( unsigned long percentage )</pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Introduce a local variable storing the result of isAutoDelete() while we're sure to still be safe.</pre>
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<a href="http://svn.reviewboard.kde.org/r/6022/diff/1/?file=42024#file42024line318" style="color: black; font-weight: bold; text-decoration: underline;">trunk/KDE/kdelibs/kdecore/jobs/kjob.cpp</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void KJob::setPercent( unsigned long percentage )</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">// guard prevents crashing in this case</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Use the guard only to issue a warning as advised by Albert.</pre>
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<a href="http://svn.reviewboard.kde.org/r/6022/diff/1/?file=42024#file42024line319" style="color: black; font-weight: bold; text-decoration: underline;">trunk/KDE/kdelibs/kdecore/jobs/kjob.cpp</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void KJob::setPercent( unsigned long percentage )</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span> <span class="n">guard</span><span class="p">.</span><span class="n">data</span><span class="p">()</span> <span class="o">&&</span> <span class="n">isAutoDelete</span><span class="p">()</span> <span class="p">)</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Make the check based only on the local variable introduced above.</pre>
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<p>- Kevin</p>
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<p>On December 1st, 2010, 5:01 p.m., Aurélien Gâteau wrote:</p>
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<div>Review request for kdelibs and Kevin Ottens.</div>
<div>By Aurélien Gâteau.</div>
<p style="color: grey;"><i>Updated 2010-12-01 17:01:44</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 a someone calls "delete job" on a slot connected to the KJob::result() signal, KJob crashes because the job does not exist anymore when execution comes back to KJob::emitResult(). I added a guard to prevent that. An alternative would be to call deleteLater() before emitting the signals but I was afraid it would cause trouble if slots connected to the emitted signals used event loops.</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;">Wrote a unit-test to demonstrate the problem. This also helps with bug #241562 although I have another request prepared to hopefully definitely nail it down.</pre>
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<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="https://bugs.kde.org/show_bug.cgi?id=241562">241562</a>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>trunk/KDE/kdelibs/kdecore/jobs/kjob.cpp <span style="color: grey">(1202165)</span></li>
<li>trunk/KDE/kdelibs/kdecore/tests/kjobtest.h <span style="color: grey">(1202165)</span></li>
<li>trunk/KDE/kdelibs/kdecore/tests/kjobtest.cpp <span style="color: grey">(1202165)</span></li>
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<p><a href="http://svn.reviewboard.kde.org/r/6022/diff/" style="margin-left: 3em;">View Diff</a></p>
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