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* Silence syncqt warnings for atomic implementation headersBradley T. Hughes2012-02-061-0/+4
| | | | | | | | | | Most of these headers are either forwarding headers, or we explicitly stop syncqt so that it doesn't generate class includes for the atomic implementation. Either way, syncqt doesn't see the QT_END_* (and sometimes not QT_BEGIN_*), which this commit fixes. Change-Id: Icc8da6f384f38b1ff4eb265c731ce2f2ed92a1a3 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Remove "All rights reserved" line from license headers.Jason McDonald2012-01-301-0/+1
| | | | | | | | | | As in the past, to avoid rewriting various autotests that contain line-number information, an extra blank line has been inserted at the end of the license text to ensure that this commit does not change the total number of lines in the license header. Change-Id: I311e001373776812699d6efc045b5f742890c689 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
* Add a set of atomics based on C++11's std::atomicThiago Macieira2012-01-281-0/+246
The C++11 std::atomic type is very close to our API, to the point one has to wonder if the committe was inspired by it. It provides all of the memory semantics that Qt requires and more, plus some compare-and-swap operations that we don't use. The idea of returning the actual value in the event of a failed compare-and-swap is actually quite good, as often we'll retry with it. We just couldn't come up with a good name (fetchAndTestAndSet?). The C++11 atomics require that the compiler support constexpr as well, since std::atomic itself isn't required by the standard to be trivially-constructible (in fact, it has a constexpr constructor in the standard). For that reason, we need constexpr so we can add a constructor to QBasicAtomic too. Change-Id: I12c51455ba73350a6f7501aacc2ca7681c4369dd Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Olivier Goffart <ogoffart@woboq.com>