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This is an automatically generated e-mail. To reply, visit:
<a href="https://git.reviewboard.kde.org/r/128762/">https://git.reviewboard.kde.org/r/128762/</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">many good stuff, but also some breakage. and the fact that kevin found an assertion makes me wonder: did you run with this patch in a build with assertions enabled?</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475864#file475864line125" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/codecompletion/tests/test_qmljscompletion.cpp</a>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">runCompletion</span><span class="p">(</span><span class="o">&</span><span class="n">completion_data</span><span class="p">);</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">runCompletion</span><span class="p">(</span><span class="o">&</span><span class="n">completion_data</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">did you make sure that the code in here does the locking itself?</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475865#file475865line126" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/declarationbuilder.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">Q_ASSERT</span><span class="p">(</span><span class="o">!</span><span class="n">DUChain</span><span class="o">::</span><span class="n">lock</span><span class="p">()</span><span class="o">-></span><span class="n">currentThreadHasReadLock</span><span class="p">()</span> <span class="o">&&</span> <span class="o">!</span><span class="n">DUChain</span><span class="o">::</span><span class="n">lock</span><span class="p">()</span><span class="o">-></span><span class="n">currentThreadHasWriteLock</span><span class="p">());</span></pre></td>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475865#file475865line180" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/declarationbuilder.cpp</a>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">// Every class inherit from Object</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">// Every class inherit from Object</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">maybe it would be a better idea to only unlock+relock in here?</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475865#file475865line202" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/declarationbuilder.cpp</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void DeclarationBuilder::endVisit(QmlJS::AST::FunctionExpression* node)</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">// Close the body context and then the parameters context</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">// Close the body context and then the parameters context</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">further down in this patch you relock before closing the context. also above you do the same. so why is this not required here?</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475865#file475865line347" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/declarationbuilder.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">lock</span><span class="p">.</span><span class="n">unlock</span><span class="p">();</span></pre></td>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475865#file475865line365" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/declarationbuilder.cpp</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void DeclarationBuilder::inferArgumentsFromCall(QmlJS::AST::Node* base, QmlJS::AST::ArgumentList* arguments)</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">AbstractType</span><span class="o">::</span><span class="n">Ptr</span> <span class="n">current_type</span> <span class="o">=</span> <span class="n">argumentDecls</span><span class="p">.</span><span class="n">at</span><span class="p">(</span><span class="n">i</span><span class="p">)</span><span class="o">-></span><span class="n">abstractType</span><span class="p">();</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">AbstractType</span><span class="o">::</span><span class="n">Ptr</span> <span class="n">current_type</span> <span class="o">=</span> <span class="n">argumentDecls</span><span class="p">.</span><span class="n">at</span><span class="p">(</span><span class="n">i</span><span class="p">)</span><span class="o">-></span><span class="n">abstractType</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">this is now unsafe</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475865#file475865line371" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/declarationbuilder.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">DUChainWriteLocker</span> <span class="n">lock</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">also, repeatedly locking and unlocking the duchain for write in such a loop is probably a bad idea performance wise. simply locking it once and then doing the write operations in ~1ms or what it takes is going to be much better</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475865#file475865line438" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/declarationbuilder.cpp</a>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">DUContext</span><span class="o">*</span> <span class="n">leftCtx</span> <span class="o">=</span> <span class="n">leftType</span><span class="p">.</span><span class="n">declaration</span><span class="o">-></span><span class="n">context</span><span class="p">();</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">DUContext</span><span class="o">*</span> <span class="n">leftCtx</span> <span class="o">=</span> <span class="n">leftType</span><span class="p">.</span><span class="n">declaration</span><span class="o">-></span><span class="n">context</span><span class="p">();</span></pre></td>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475865#file475865line525" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/declarationbuilder.cpp</a>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">DUContext</span><span class="o">*</span> <span class="n">ctx</span> <span class="o">=</span> <span class="n">QmlJS</span><span class="o">::</span><span class="n">getInternalContext</span><span class="p">(</span><span class="n">declaration</span><span class="p">);</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">DUContext</span><span class="o">*</span> <span class="n">ctx</span> <span class="o">=</span> <span class="n">QmlJS</span><span class="o">::</span><span class="n">getInternalContext</span><span class="p">(</span><span class="n">declaration</span><span class="p">);</span></pre></td>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475865#file475865line612" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/declarationbuilder.cpp</a>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">DUChainWriteLocker</span> <span class="n">lock</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="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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">undo this change</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475865#file475865line629" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/declarationbuilder.cpp</a>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">// Every object literal inherits from Object</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">// Every object literal inherits from Object</span></pre></td>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475865#file475865line1483" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/declarationbuilder.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">DUChainReadLocker</span> <span class="n">lock</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">this looks wrong. you are accessing the current context and the baseClassesSize etc. in the loop, so the duchain must be locked</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475866#file475866line41" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/expressionvisitor.cpp</a>
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(Diff revision 2)
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">Q_ASSERT</span><span class="p">(</span><span class="o">!</span><span class="n">DUChain</span><span class="o">::</span><span class="n">lock</span><span class="p">()</span><span class="o">-></span><span class="n">currentThreadHasReadLock</span><span class="p">()</span> <span class="o">&&</span> <span class="o">!</span><span class="n">DUChain</span><span class="o">::</span><span class="n">lock</span><span class="p">()</span><span class="o">-></span><span class="n">currentThreadHasWriteLock</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">use ENSURE_CHAIN_NOT_LOCKED</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475866#file475866line302" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/expressionvisitor.cpp</a>
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(Diff revision 2)
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="o">!</span><span class="n">encounterDeclarationInContext</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> <span class="o">&&</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="o">!</span><span class="n">encounterDeclarationInContext</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">context</span><span class="p">)</span> <span class="o">&&</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">just to make sure: this function is safely accessing the context and handling the locking for the context internally?</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475867#file475867line92" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/frameworks/nodejs.cpp</a>
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(Diff revision 2)
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">Q_ASSERT</span><span class="p">(</span><span class="o">!</span><span class="n">DUChain</span><span class="o">::</span><span class="n">lock</span><span class="p">()</span><span class="o">-></span><span class="n">currentThreadHasReadLock</span><span class="p">()</span> <span class="o">&&</span> <span class="o">!</span><span class="n">DUChain</span><span class="o">::</span><span class="n">lock</span><span class="p">()</span><span class="o">-></span><span class="n">currentThreadHasWriteLock</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">dito</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475867#file475867line130" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/frameworks/nodejs.cpp</a>
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(Diff revision 2)
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">Q_ASSERT</span><span class="p">(</span><span class="o">!</span><span class="n">DUChain</span><span class="o">::</span><span class="n">lock</span><span class="p">()</span><span class="o">-></span><span class="n">currentThreadHasReadLock</span><span class="p">()</span> <span class="o">&&</span> <span class="o">!</span><span class="n">DUChain</span><span class="o">::</span><span class="n">lock</span><span class="p">()</span><span class="o">-></span><span class="n">currentThreadHasWriteLock</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">dito</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475868#file475868line161" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/helper.cpp</a>
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(Diff revision 2)
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">DUChainReadLocker</span> <span class="n">lock</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="n">Q_ASSERT</span><span class="p">(</span><span class="o">!</span><span class="n">DUChain</span><span class="o">::</span><span class="n">lock</span><span class="p">()</span><span class="o">-></span><span class="n">currentThreadHasReadLock</span><span class="p">()</span> <span class="o">&&</span> <span class="o">!</span><span class="n">DUChain</span><span class="o">::</span><span class="n">lock</span><span class="p">()</span><span class="o">-></span><span class="n">currentThreadHasWriteLock</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">dito</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475868#file475868line283" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/helper.cpp</a>
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(Diff revision 2)
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">Q_ASSERT</span><span class="p">(</span><span class="o">!</span><span class="n">DUChain</span><span class="o">::</span><span class="n">lock</span><span class="p">()</span><span class="o">-></span><span class="n">currentThreadHasReadLock</span><span class="p">()</span> <span class="o">&&</span> <span class="o">!</span><span class="n">DUChain</span><span class="o">::</span><span class="n">lock</span><span class="p">()</span><span class="o">-></span><span class="n">currentThreadHasWriteLock</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">dito</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475869#file475869line236" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/parsesession.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">Q_ASSERT</span><span class="p">(</span><span class="o">!</span><span class="n">DUChain</span><span class="o">::</span><span class="n">lock</span><span class="p">()</span><span class="o">-></span><span class="n">currentThreadHasReadLock</span><span class="p">()</span> <span class="o">&&</span> <span class="o">!</span><span class="n">DUChain</span><span class="o">::</span><span class="n">lock</span><span class="p">()</span><span class="o">-></span><span class="n">currentThreadHasWriteLock</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">dito</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128762/diff/2/?file=475869#file475869line269" style="color: black; font-weight: bold; text-decoration: underline;">languages/qmljs/duchain/parsesession.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">Q_ASSERT</span><span class="p">(</span><span class="o">!</span><span class="n">DUChain</span><span class="o">::</span><span class="n">lock</span><span class="p">()</span><span class="o">-></span><span class="n">currentThreadHasReadLock</span><span class="p">()</span> <span class="o">&&</span> <span class="o">!</span><span class="n">DUChain</span><span class="o">::</span><span class="n">lock</span><span class="p">()</span><span class="o">-></span><span class="n">currentThreadHasWriteLock</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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">dito</p></pre>
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<p>- Milian Wolff</p>
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<p>On September 1st, 2016, 8:22 p.m. UTC, Sven Brauch wrote:</p>
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<div>Review request for KDevelop and Kevin Funk.</div>
<div>By Sven Brauch.</div>
<p style="color: grey;"><i>Updated Sept. 1, 2016, 8:22 p.m.</i></p>
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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=367825">367825</a>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
kdevelop
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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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">We <em style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">must not</em> hold a duchain lock when contextOfFile() is called. That
might try to add something to the background parser queue, which locks
the background parser mutex; then both locks are held, which causes
deadlocks.</p></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;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">Opened some test project, no crashes, no freezes, and the (I think) reason for the freeze is gone.</p></pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>languages/qmljs/codecompletion/context.cpp <span style="color: grey">(3a44f45)</span></li>
<li>languages/qmljs/codecompletion/tests/test_qmljscompletion.cpp <span style="color: grey">(b689418)</span></li>
<li>languages/qmljs/duchain/declarationbuilder.cpp <span style="color: grey">(fb0cb5d)</span></li>
<li>languages/qmljs/duchain/expressionvisitor.cpp <span style="color: grey">(3b641f5)</span></li>
<li>languages/qmljs/duchain/frameworks/nodejs.cpp <span style="color: grey">(41964e4)</span></li>
<li>languages/qmljs/duchain/helper.cpp <span style="color: grey">(e537103)</span></li>
<li>languages/qmljs/duchain/parsesession.cpp <span style="color: grey">(d1ad4a9)</span></li>
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<p><a href="https://git.reviewboard.kde.org/r/128762/diff/" style="margin-left: 3em;">View Diff</a></p>
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