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This is an automatically generated e-mail. To reply, visit:
<a href="http://git.reviewboard.kde.org/r/102179/">http://git.reviewboard.kde.org/r/102179/</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;">Good job, this is tricky code indeed. Some comments below.</pre>
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<a href="http://git.reviewboard.kde.org/r/102179/diff/5/?file=31680#file31680line177" style="color: black; font-weight: bold; text-decoration: underline;">kio/kio/hostinfo.cpp</a>
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(Diff revision 5)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">namespace KIO</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">m_lookups</span><span class="p">[</span><span class="n">hostName</span><span class="p">]</span> <span class="o">=</span> <span class="n">petition</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;">The interesting question is, what if hostname was already in the m_lookups map?
Either we want to detect this upfront and not create a second request, or we need a "list of requests for a given hostname" in the map.</pre>
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<a href="http://git.reviewboard.kde.org/r/102179/diff/5/?file=31680#file31680line179" style="color: black; font-weight: bold; text-decoration: underline;">kio/kio/hostinfo.cpp</a>
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(Diff revision 5)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">namespace KIO</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew"> </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;">reviewboard is highlighting quite a number of lines with trailing whitespace</pre>
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<a href="http://git.reviewboard.kde.org/r/102179/diff/5/?file=31680#file31680line224" style="color: black; font-weight: bold; text-decoration: underline;">kio/kio/hostinfo.cpp</a>
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(Diff revision 5)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">namespace KIO</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">m_worker</span> <span class="o">=</span> <span class="k">new</span> <span class="n">NameLookUpThreadWorker</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;">You could also just create the worker on the stack here.</pre>
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<a href="http://git.reviewboard.kde.org/r/102179/diff/5/?file=31680#file31680line236" style="color: black; font-weight: bold; text-decoration: underline;">kio/kio/hostinfo.cpp</a>
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<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">K_GLOBAL_STATIC(NameLookUpThread, nameLookUpThread)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="n">K_GLOBAL_STATIC</span><span class="p">(</span><span class="n">NameLookUpThread</span><span class="p">,</span> <span class="n">nameLookUpThread</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;">Maybe move nameLookupThread as a member of hostInfoAgentPrivate, to avoid multiplying the global statics (and therefore have more control over order of destruction)? Or does this make no sense?</pre>
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<a href="http://git.reviewboard.kde.org/r/102179/diff/5/?file=31680#file31680line266" style="color: black; font-weight: bold; text-decoration: underline;">kio/kio/hostinfo.cpp</a>
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<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">K_GLOBAL_STATIC(NameLookUpThread, nameLookUpThread)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">while</span> <span class="p">(</span><span class="o">!</span><span class="n">nameLookUpThread</span><span class="o">-></span><span class="n">worker</span><span class="p">())</span> <span class="n">QThread</span><span class="o">::</span><span class="n">yieldCurrentThread</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;">Ouch, a busy loop.
The standard solution is to use ... yes ... a semaphore :-) I love semaphores.
Acquire the semaphore here, release it in the thread once the worker object has been created.</pre>
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<p>- David</p>
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<p>On August 11th, 2011, 9:23 a.m., Albert Astals Cid wrote:</p>
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<div>Review request for kdelibs and Dawit Alemayehu.</div>
<div>By Albert Astals Cid.</div>
<p style="color: grey;"><i>Updated Aug. 11, 2011, 9:23 a.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;">Each time the terminate code triggers my Konqueror crashes, i'm substituting the terminate for just waiting the thread to finish and we just ignoring it.
The code has a race condition in which wait() returns false, then we switch to the thread and m_autoDelete is still not set and thus noone will delete the thread. I can add a mutex if you guys think this is unacceptable.</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;">When the
kDebug() << "Name look up for" << hostName << "failed";
if triggers i do not get a crash anymore.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>kio/kio/hostinfo.cpp <span style="color: grey">(344b1d8)</span></li>
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<p><a href="http://git.reviewboard.kde.org/r/102179/diff/" style="margin-left: 3em;">View Diff</a></p>
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