| 1 | // Copyright (C) 2017 Intel Corporation. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QRANDOM_P_H |
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| 5 | #define QRANDOM_P_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | // |
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| 17 | |
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| 18 | #include "qglobal_p.h" |
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| 19 | #include <qrandom.h> |
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| 20 | #include <private/qsimd_p.h> |
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| 21 | |
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| 22 | QT_BEGIN_NAMESPACE |
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| 23 | |
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| 24 | enum QRandomGeneratorControl { |
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| 25 | UseSystemRNG = 1, |
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| 26 | SkipSystemRNG = 2, |
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| 27 | SkipHWRNG = 4, |
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| 28 | SetRandomData = 8, |
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| 29 | |
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| 30 | // 28 bits |
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| 31 | RandomDataMask = 0xfffffff0 |
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| 32 | }; |
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| 33 | |
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| 34 | enum RNGType { |
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| 35 | SystemRNG = 0, |
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| 36 | MersenneTwister = 1 |
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| 37 | }; |
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| 38 | |
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| 39 | #if defined(QT_BUILD_INTERNAL) |
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| 40 | extern Q_CORE_EXPORT QBasicAtomicInteger<uint> qt_randomdevice_control; |
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| 41 | #else |
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| 42 | static const struct |
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| 43 | { |
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| 44 | uint loadAcquire() const { return 0; } |
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| 45 | } qt_randomdevice_control; |
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| 46 | #endif |
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| 47 | |
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| 48 | QRandomGenerator::InitialRandomData qt_initial_random_value() noexcept; |
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| 49 | |
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| 50 | QT_END_NAMESPACE |
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| 51 | |
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| 52 | #endif // QRANDOM_P_H |
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| 53 | |
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