| 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 QFUTEX_P_H |
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| 5 | #define QFUTEX_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 <qdeadlinetimer.h> |
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| 19 | #include <private/qglobal_p.h> |
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| 20 | |
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| 21 | QT_BEGIN_NAMESPACE |
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| 22 | |
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| 23 | namespace QtDummyFutex { |
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| 24 | constexpr inline bool futexAvailable() { return false; } |
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| 25 | template <typename Atomic> |
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| 26 | inline bool futexWait(Atomic &, typename Atomic::Type, QDeadlineTimer = {}) |
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| 27 | { Q_UNREACHABLE_RETURN(false); } |
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| 28 | template <typename Atomic> inline void futexWakeOne(Atomic &) |
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| 29 | { Q_UNREACHABLE(); } |
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| 30 | template <typename Atomic> inline void futexWakeAll(Atomic &) |
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| 31 | { Q_UNREACHABLE(); } |
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| 32 | } |
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| 33 | |
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| 34 | QT_END_NAMESPACE |
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| 35 | |
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| 36 | #if defined(Q_OS_DARWIN) |
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| 37 | # include "qfutex_mac_p.h" |
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| 38 | #elif defined(Q_OS_FREEBSD) |
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| 39 | # include "qfutex_freebsd_p.h" |
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| 40 | #elif defined(Q_OS_LINUX) && !defined(QT_LINUXBASE) |
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| 41 | // use Linux mutexes everywhere except for LSB builds |
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| 42 | # include "qfutex_linux_p.h" |
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| 43 | #elif defined(Q_OS_WIN) |
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| 44 | # include "qfutex_win_p.h" |
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| 45 | #else |
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| 46 | QT_BEGIN_NAMESPACE |
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| 47 | namespace QtFutex = QtDummyFutex; |
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| 48 | QT_END_NAMESPACE |
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| 49 | #endif |
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| 50 | |
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| 51 | #endif // QFUTEX_P_H |
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| 52 | |
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