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authorMarc Mutz <marc.mutz@kdab.com>2012-08-24 12:06:03 +0200
committerThe Qt Project <gerrit-noreply@qt-project.org>2012-09-22 19:19:37 +0200
commit373a7277db0583fbbb8ed61f9f61d6f77ed95da4 (patch)
treef530a3e205770802a2580789e8e5eb487065fedb /tests/manual/qscreen/propertyfield.cpp
parentf799e57151dbd236f30d4ffb20d6c331b6e1a388 (diff)
QDBusMetaTypeId: don't cache the result of qMetaTypeId<>() in static ints
There's not much point in caching the result of qMetaTypeId<>, because it's already internally memoised. In addition, the code that initialised the static int caches wasn't protected against concurrent access under the assumption that the operations performed were thread-safe. That is true for most of them, but not for the stores to the static ints, which race against each other: // Thread A // Thread B r1 = initialized /*=false*/ r1 = initialized /*=false*/ r2 = qMetaTypeId<...>(); r2 = qMetaTypeId<...>(); message = r2; message = r2; // race, ditto for all other ints To fix, turn the ints into inline functions that just call the respective qMetaTypeId<>() function. Change-Id: I5aa80c624872c3867232abc26ffdcde70cd54022 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'tests/manual/qscreen/propertyfield.cpp')
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