diff options
Diffstat (limited to 'src/corelib/global/qrandom_p.h')
| -rw-r--r-- | src/corelib/global/qrandom_p.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/src/corelib/global/qrandom_p.h b/src/corelib/global/qrandom_p.h index 6ac2904e1b..917a91098e 100644 --- a/src/corelib/global/qrandom_p.h +++ b/src/corelib/global/qrandom_p.h @@ -52,11 +52,12 @@ // #include "qglobal_p.h" +#include <private/qsimd_p.h> QT_BEGIN_NAMESPACE enum QRandomGeneratorControl { - SkipMemfill = 1, + UseSystemRNG = 1, SkipSystemRNG = 2, SkipHWRNG = 4, SetRandomData = 8, @@ -65,6 +66,11 @@ enum QRandomGeneratorControl { RandomDataMask = 0xfffffff0 }; +enum RNGType { + SystemRNG = 0, + MersenneTwister = 1 +}; + #if defined(QT_BUILD_INTERNAL) && defined(QT_BUILD_CORE_LIB) Q_CORE_EXPORT QBasicAtomicInteger<uint> qt_randomdevice_control = Q_BASIC_ATOMIC_INITIALIZER(0U); #elif defined(QT_BUILD_INTERNAL) @@ -73,6 +79,16 @@ extern Q_CORE_EXPORT QBasicAtomicInteger<uint> qt_randomdevice_control; enum { qt_randomdevice_control = 0 }; #endif +inline bool qt_has_hwrng() +{ +#if defined(Q_PROCESSOR_X86) && QT_COMPILER_SUPPORTS_HERE(RDRND) + return qCpuHasFeature(RDRND); +#else + return false; +#endif +} + + QT_END_NAMESPACE #endif // QRANDOM_P_H |