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* Replace the type-based QAtomicIntegerTraits with a size-based oneThiago Macieira2014-01-301-12/+3
| | | | | | | | This simplifies the code a lot and avoids silly mistakes where a specific integer type is missing (such as char16_t). Change-Id: Id91dfd1919e783e0a9af7bfa093ca560a01b22d1 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Centralize support for QBasicAtomic for ints and longsThiago Macieira2014-01-301-6/+0
| | | | | | | No need to redefine everywhere, since they're required to be supported. Change-Id: I2bdbbd0b0c44871e3bd0edcf0289fc58dd50ff31 Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Disable 64-bit atomics on 32-bit x86Thiago Macieira2013-12-071-1/+2
| | | | | | | | | | | | At least with GCC, the use of cmpxchg8b in inline assembly is unreliable. The instruction requires 5 registers to be used and sometimes GCC complains that it runs out of them. qatomic_x86.h:424:33: error: can’t find a register in class ‘GENERAL_REGS’ while reloading ‘asm’ qatomic_x86.h:424:33: error: ‘asm’ operand has impossible constraints Change-Id: Ie5414f3bccc6e559c7eec93beabe8663ab40271f Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
* Mark all qtbase headers that aren't cleanThiago Macieira2013-03-031-0/+1
| | | | | | | | | | | | | | | | QtCore has a few headers that, though public, aren't meant to be included directly. Those are the atomic headers, the three _impl.h headers and qt_windows.h. QtGui includes two OpenGL headers that don't compile on their own. Other libraries should not have headers like that (but they do, something we need to fix eventually). Change-Id: I55e4eb057748f47df927ee618f9409acbc189cc1 Reviewed-by: Sean Harmer <sean.harmer@kdab.com> Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Remove QT_{BEGIN,END}_HEADER macro usageSergio Ahumada2013-01-291-6/+0
| | | | | | | | | | | The macro was made empty in ba3dc5f3b56d1fab6fe37fe7ae08096d7dc68bcb and is no longer necessary or used. Discussed-on: http://lists.qt-project.org/pipermail/development/2013-January/009284.html Change-Id: Id2bb2e2cabde059305d4af5f12593344ba30f001 Reviewed-by: Laszlo Papp <lpapp@kde.org> Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com> Reviewed-by: hjk <hjk121@nokiamail.com>
* Update copyright year in Digia's license headersSergio Ahumada2013-01-181-1/+1
| | | | | Change-Id: Ic804938fc352291d011800d21e549c10acac66fb Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Change copyrights from Nokia to DigiaIikka Eklund2012-09-221-24/+24
| | | | | | | | Change copyrights and license headers from Nokia to Digia Change-Id: If1cc974286d29fd01ec6c19dd4719a67f4c3f00e Reviewed-by: Lars Knoll <lars.knoll@digia.com> Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
* Enable QAtomicInteger for char16_t and char32_tThiago Macieira2012-08-181-0/+6
| | | | | | | | | | | Those are regular, integer types, of 16- and 32-bit width, respectively. C++11's std::atomic supports them, so we should too. C++11 also supports wchar_t, but since that type's size can change, I don't feel like support for it in Qt is pressing. Change-Id: I945b641c91a8a98be82715f878c382dee58ac98b Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
* Add Q_DECL_CONSTEXPR to the isXXX functions in the new atomics.Thiago Macieira2012-08-181-10/+10
| | | | | | | | | This allows one to write code that depends on these values at compile-time. Change-Id: I7d78524ed9c70d4141360496d1d764dcbfa92e62 Reviewed-by: Marc Mutz <marc.mutz@kdab.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Mark all atomic functions as Q_DECL_NOTHROWThiago Macieira2012-08-091-30/+30
| | | | | | | | | | | | | | | | | | | | | | | | | Actually, only the "new" atomics are marked. The old implementation, based on qoldbasicatomic.h is unchanged, but should still work without a problem. The following configurations were tested and do work: - x86 64-bit - x86 32-bit - generic GCC - generic C++11 std::atomic - bootstrap - ARMv6 and 7 - MIPS - MSVC 2010 32-bit - MSVC 2010 64-bit The only two configurations untested are IA-64 and ARMv5. Except for MSVC, all configurations were tested with GCC 4.6 (MIPS and ARM) and 4.7 (x86 and generics). Change-Id: Iecbfeacd9d20b535453e91335165e9a221e0b47e Reviewed-by: Marc Mutz <marc.mutz@kdab.com> Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
* Unify the atomic implementation for x86 architecturesThiago Macieira2012-03-281-33/+96
| | | | | | | | | | | It's almost exactly the same code in both files, so let's have one file only. That means we need an #ifdef for the special case of 64-bit types on i386. Also take the opportunity to add a comment explaining how this works. Change-Id: I50d274fa026806ae511b1045aa8a5c25daaa0edc Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
* Rename qatomic_x86_64.h to qatomic_x86.hThiago Macieira2012-03-281-0/+359
This is the first step in merging the i386 and x86-64 architectures. The next commit will bring i386 support into qatomic_x86.h. Change-Id: I24105ea70f3fc29b3fb779a70053f99117440573 Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
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