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This is an automatically generated e-mail. To reply, visit:
<a href="https://git.reviewboard.kde.org/r/115992/">https://git.reviewboard.kde.org/r/115992/</a>
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<p style="margin-top: 0;">On February 25th, 2014, 8:48 a.m. UTC, <b>Milian Wolff</b> wrote:</p>
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<a href="https://git.reviewboard.kde.org/r/115992/diff/1/?file=245796#file245796line189" style="color: black; font-weight: bold; text-decoration: underline;">clangparsejob.cpp</a>
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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">configfile</span><span class="p">.</span><span class="n">isEmpty</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;">braces please everywhere - thanks!</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;">Hey you let this slide when the last guy wrote it!</pre>
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<p style="margin-top: 0;">On February 25th, 2014, 8:48 a.m. UTC, <b>Milian Wolff</b> wrote:</p>
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<a href="https://git.reviewboard.kde.org/r/115992/diff/1/?file=245796#file245796line265" style="color: black; font-weight: bold; text-decoration: underline;">clangparsejob.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">static</span> <span class="k">const</span> <span class="n">Path</span> <span class="n">ownPchInclude</span><span class="p">;</span> <span class="c1">//No chained pch for now</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;">unused?</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;">Yikes, it should be used. It should be passed to ParseSession instead of pchInclude.</pre>
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<p style="margin-top: 0;">On February 25th, 2014, 8:48 a.m. UTC, <b>Milian Wolff</b> wrote:</p>
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<a href="https://git.reviewboard.kde.org/r/115992/diff/1/?file=245796#file245796line320" style="color: black; font-weight: bold; text-decoration: underline;">clangparsejob.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">static</span> <span class="n">QHash</span><span class="o"><</span><span class="n">Path</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">shared_ptr</span><span class="o"><</span><span class="n">PCH</span><span class="o">>></span> <span class="n">loadedPCH</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;">this is pretty ugly, could you move that to somewhere else? Maybe ClangIndex?</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, I don't intend for this to be production. When the correct locking scheme is worked out this can be done nicely. ClangIndex sounds odd to me though.</pre>
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<p style="margin-top: 0;">On February 25th, 2014, 8:48 a.m. UTC, <b>Milian Wolff</b> wrote:</p>
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<a href="https://git.reviewboard.kde.org/r/115992/diff/1/?file=245796#file245796line324" style="color: black; font-weight: bold; text-decoration: underline;">clangparsejob.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">auto</span> <span class="n">getExisting</span> <span class="o">=</span> <span class="p">[</span><span class="o">&</span><span class="p">]()</span> <span class="o">-></span> <span class="n">PCH</span><span class="o">*</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;">personally I'm not a big fan of helper lambdas like that - if you'd name that (i.e. put it into a static free function) you'd get quick open navigation etc. pp....
looking at the use below, you only need this code once though</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;">I need/use it twice. First it read-locks and tries to getExisting PCH, and if that fails it writelocks in preparation for creating the PCH. But after aquiring the writelock it needs to check again in case another PCH has beat it to the creation of PCH.
Of course, that's the theory, in practice ParseLock apparently doesn't do anything of the sort. Probably I'll just go with a custom PCH manager instead of this function that manages its own r/w locks.</pre>
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<p style="margin-top: 0;">On February 25th, 2014, 8:48 a.m. UTC, <b>Milian Wolff</b> wrote:</p>
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<a href="https://git.reviewboard.kde.org/r/115992/diff/1/?file=245796#file245796line334" style="color: black; font-weight: bold; text-decoration: underline;">clangparsejob.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">QReadLocker</span> <span class="n">lock</span><span class="p">(</span><span class="n">parseLock</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;">this with the below doesn't make any sense. use the urlparselock (see comment below) and only check the getExisting once</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;">It doesn't make sense if you actually know what parselock does. It makes a modicum of sense if it did what I assumed it did.</pre>
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<p style="margin-top: 0;">On February 25th, 2014, 8:48 a.m. UTC, <b>Milian Wolff</b> wrote:</p>
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<a href="https://git.reviewboard.kde.org/r/115992/diff/1/?file=245796#file245796line363" style="color: black; font-weight: bold; text-decoration: underline;">clangparsejob.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">m_pchInclude</span> <span class="o">=</span> <span class="n">getUserDefinedPchIncludeForFile</span><span class="p">(</span><span class="n">urlStr</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;">this can/should be done from within ClangParseJob::run
it does not require to be run in the foreground thread after all.</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;">Why? This doesn't actually create anything, it's identical to getUserDefinedIncludePaths.</pre>
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<p style="margin-top: 0;">On February 25th, 2014, 8:48 a.m. UTC, <b>Milian Wolff</b> wrote:</p>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">ClangLanguageSupport* ClangParseJob::clang() const</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">auto</span> <span class="n">pch</span> <span class="o">=</span> <span class="n">getPCH</span><span class="p">(</span><span class="n">m_pchInclude</span><span class="p">,</span> <span class="n">m_includes</span><span class="p">,</span> <span class="n">m_defines</span><span class="p">,</span> <span class="n">clang</span><span class="p">()</span><span class="o">-></span><span class="n">index</span><span class="p">(),</span> <span class="n">languageSupport</span><span class="p">()</span><span class="o">-></span><span class="n">language</span><span class="p">()</span><span class="o">-></span><span class="n">parseLock</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;">I wouldn't pass around the parselock, just switch these lines and you should be set. Note that the parselock has a very bad name - it's just to verify that kdev is not shutting down while a parsejob is running.
what you should do though is getting an UrlParseLock for the pch file found in m_pchInclude before parsing the PCH. Otherwise, you'll potentially parse the same pch multiple times.
what you might want to check is whether abort was requested in between, like after getting the urlparselock and before parsing the pch</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;">My parselock assumptions were all BS.</pre>
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<p style="margin-top: 0;">On February 25th, 2014, 8:48 a.m. UTC, <b>Milian Wolff</b> wrote:</p>
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<a href="https://git.reviewboard.kde.org/r/115992/diff/1/?file=245798#file245798line190" style="color: black; font-weight: bold; text-decoration: underline;">duchain/parsesession.cpp</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">IndexedString ParseSession::languageString()</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="o">&</span><span class="n">file</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span></pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="o">&</span><span class="n">file</span><span class="p">,</span> <span class="n">options</span><span class="p">.</span><span class="n">testFlag</span><span class="p">(</span><span class="n">PrecompiledHeader</span><span class="p">)</span> <span class="o">?</span> <span class="mi">0</span> <span class="o">:</span> <span class="mi">1</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;">add a comment regarding the 0/1 here please to clarify why this is required (I guess since pch stuff should never use anything from the editor?)</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;">And we don't have the pch file contents, so that's an empty QByteArray that we definitely don't want to use.</pre>
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<p>- Olivier Jean de</p>
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<p>On February 24th, 2014, 9:56 a.m. UTC, Olivier Jean de Gaalon wrote:</p>
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<div>Review request for KDevelop and Milian Wolff.</div>
<div>By Olivier Jean de Gaalon.</div>
<p style="color: grey;"><i>Updated Feb. 24, 2014, 9:56 a.m.</i></p>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
kdev-clang
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<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;">This is a little dirty, but I probably won't be able to work on it any more this week, so at least I can throw it up for feedback. Give special attention to parselock, because I didn't take the time to see how it's supposed to be used.</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, including with epic-size projects. It still doesn't resume properly for some reason (clang will complain about invalid PCH, create an invalid tu, and the pch contexts will be nuked). I haven't had time to look into that, just have to remove the pch and rebuild for now.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>clangparsejob.h <span style="color: grey">(b12e9df)</span></li>
<li>clangparsejob.cpp <span style="color: grey">(86588ce)</span></li>
<li>duchain/parsesession.h <span style="color: grey">(e557884)</span></li>
<li>duchain/parsesession.cpp <span style="color: grey">(265e099)</span></li>
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<p><a href="https://git.reviewboard.kde.org/r/115992/diff/" style="margin-left: 3em;">View Diff</a></p>
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