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This is an automatically generated e-mail. To reply, visit:
<a href="https://git.reviewboard.kde.org/r/128893/">https://git.reviewboard.kde.org/r/128893/</a>
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<div>Review request for KDE Frameworks and Boudhayan Gupta.</div>
<div>By Christoph Cullmann.</div>
<p style="color: grey;"><i>Updated Sept. 11, 2016, 8:27 p.m.</i></p>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
baloo
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description (updated)</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;">Old code was plain wrong:</p>
<h2 style="font-size: 100%;text-rendering: inherit;padding: 0;white-space: normal;margin: 0;line-height: inherit;">- auto it = std::upper_bound(subDocs.begin(), subDocs.end(), id);</h2>
<ul style="padding: 0;text-rendering: inherit;margin: 0 0 0 1em;line-height: inherit;white-space: normal;">
<li style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">// Merge the id if it does not</li>
<li style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">auto prev = it - 1;</li>
<li style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">if (*prev != id) {</li>
<li style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">subDocs.insert(it, id);</li>
<li style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">}</li>
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<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">=> you deref begin()-1 in my test case</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">=> BAM ;)</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">valgrind backtrace for old code (moved it to template method)</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">0
PASS : DocumentUrlDBTest::testGetId()
it == begin 1
==22283== Invalid read of size 8
==22283== at 0x406F20: void Baloo::sortedIdInsert<std::vector<unsigned long long, std::allocator<unsigned long long> >, unsigned long long>(std::vector<unsigned long long, std::allocator<unsigned long long> >&, unsigned long long const&) (idutils.h:101)
==22283== by 0x406965: DocumentUrlDBTest::testSortedIdInsert() (documenturldbtest.cpp:158)
==22283== by 0x404DD9: DocumentUrlDBTest::qt_static_metacall(QObject<em style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">, QMetaObject::Call, int, void<strong style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">) (documenturldbtest.moc:99)
==22283== by 0x57F90BD: QMetaMethod::invoke(QObject<em style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) const (in /usr/lib/libQt5Core.so.5.7.0)
==22283== by 0x4E489D6: ??? (in /usr/lib/libQt5Test.so.5.7.0)
==22283== by 0x4E49405: ??? (in /usr/lib/libQt5Test.so.5.7.0)
==22283== by 0x4E49A51: ??? (in /usr/lib/libQt5Test.so.5.7.0)
==22283== by 0x4E49F60: QTest::qExec(QObject</em>, int, char</strong>) (in /usr/lib/libQt5Test.so.5.7.0)
==22283== by 0x404CF1: main (documenturldbtest.cpp:167)
==22283== Address 0xbf25418 is 8 bytes before a block of size 8 alloc'd
==22283== at 0x4C2A0FC: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==22283== by 0x40AF63: __gnu_cxx::new_allocator<unsigned long long>::allocate(unsigned long, void const</em>) (new_allocator.h:104)
==22283== by 0x40AD46: std::allocator_traits<std::allocator<unsigned long long> >::allocate(std::allocator<unsigned long long>&, unsigned long) (alloc_traits.h:416)
==22283== by 0x40A171: std::_Vector_base<unsigned long long, std::allocator<unsigned long long> >::_M_allocate(unsigned long) (stl_vector.h:170)
==22283== by 0x409151: void std::vector<unsigned long long, std::allocator<unsigned long long> >::_M_emplace_back_aux<unsigned long long>(unsigned long long&&) (vector.tcc:412)
==22283== by 0x40886C: void std::vector<unsigned long long, std::allocator<unsigned long long> >::emplace_back<unsigned long long>(unsigned long long&&) (vector.tcc:101)
==22283== by 0x406E55: std::vector<unsigned long long, std::allocator<unsigned long long> >::push_back(unsigned long long&&) (stl_vector.h:933)
==22283== by 0x40694A: DocumentUrlDBTest::testSortedIdInsert() (documenturldbtest.cpp:155)
==22283== by 0x404DD9: DocumentUrlDBTest::qt_static_metacall(QObject<em style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">, QMetaObject::Call, int, void</em><em style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">) (documenturldbtest.moc:99)
==22283== by 0x57F90BD: QMetaMethod::invoke(QObject</em>, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) const (in /usr/lib/libQt5Core.so.5.7.0)
==22283== by 0x4E489D6: ??? (in /usr/lib/libQt5Test.so.5.7.0)
==22283== by 0x4E49405: ??? (in /usr/lib/libQt5Test.so.5.7.0)
==22283==</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">Bug report:</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">https://bugs.kde.org/show_bug.cgi?id=367991</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;">Wrote test, valgrind shows error (or you get segfault, depending on luck) with old code, new one works.</p></pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
<ul style="margin-left: 3em; padding-left: 0;">
<li>autotests/unit/engine/documenturldbtest.cpp <span style="color: grey">(448821b)</span></li>
<li>src/engine/documenturldb.cpp <span style="color: grey">(5083e7a)</span></li>
<li>src/engine/idutils.h <span style="color: grey">(cc7da9c)</span></li>
<li>src/engine/writetransaction.cpp <span style="color: grey">(3808970)</span></li>
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<p><a href="https://git.reviewboard.kde.org/r/128893/diff/" style="margin-left: 3em;">View Diff</a></p>
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