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// Copyright (C) 2017 Intel Corporation.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QFUTEX_P_H
#define QFUTEX_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <qdeadlinetimer.h>
#include <private/qglobal_p.h>
QT_BEGIN_NAMESPACE
namespace QtDummyFutex {
constexpr inline bool futexAvailable() { return false; }
template <typename Atomic>
inline bool futexWait(Atomic &, typename Atomic::Type, QDeadlineTimer = {})
{ Q_UNREACHABLE_RETURN(false); }
template <typename Atomic> inline void futexWakeOne(Atomic &)
{ Q_UNREACHABLE(); }
template <typename Atomic> inline void futexWakeAll(Atomic &)
{ Q_UNREACHABLE(); }
}
QT_END_NAMESPACE
#if defined(Q_OS_DARWIN)
# include "qfutex_mac_p.h"
#elif defined(Q_OS_FREEBSD)
# include "qfutex_freebsd_p.h"
#elif defined(Q_OS_LINUX) && !defined(QT_LINUXBASE)
// use Linux mutexes everywhere except for LSB builds
# include "qfutex_linux_p.h"
#elif defined(Q_OS_WIN)
# include "qfutex_win_p.h"
#else
QT_BEGIN_NAMESPACE
namespace QtFutex = QtDummyFutex;
QT_END_NAMESPACE
#endif
#endif // QFUTEX_P_H
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