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diff --git a/src/corelib/kernel/qsharedmemory_p.h b/src/corelib/kernel/qsharedmemory_p.h
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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtCore module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QSHAREDMEMORY_P_H
-#define QSHAREDMEMORY_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 "qsharedmemory.h"
-
-#include <QtCore/qstring.h>
-
-#ifdef QT_NO_SHAREDMEMORY
-# ifndef QT_NO_SYSTEMSEMAPHORE
-namespace QSharedMemoryPrivate
-{
- int createUnixKeyFile(const QString &fileName);
- QString makePlatformSafeKey(const QString &key,
- const QString &prefix = QLatin1String("qipc_sharedmemory_"));
-}
-#endif
-#else
-
-#include "qsystemsemaphore.h"
-
-#ifndef QT_NO_QOBJECT
-# include "private/qobject_p.h"
-#endif
-
-#if !defined(Q_OS_WIN) && !defined(Q_OS_ANDROID) && !defined(Q_OS_INTEGRITY) && !defined(Q_OS_RTEMS)
-# include <sys/sem.h>
-#endif
-
-QT_BEGIN_NAMESPACE
-
-#ifndef QT_NO_SYSTEMSEMAPHORE
-/*!
- Helper class
- */
-class QSharedMemoryLocker
-{
-
-public:
- inline QSharedMemoryLocker(QSharedMemory *sharedMemory) : q_sm(sharedMemory)
- {
- Q_ASSERT(q_sm);
- }
-
- inline ~QSharedMemoryLocker()
- {
- if (q_sm)
- q_sm->unlock();
- }
-
- inline bool lock()
- {
- if (q_sm && q_sm->lock())
- return true;
- q_sm = nullptr;
- return false;
- }
-
-private:
- QSharedMemory *q_sm;
-};
-#endif // QT_NO_SYSTEMSEMAPHORE
-
-class Q_AUTOTEST_EXPORT QSharedMemoryPrivate
-#ifndef QT_NO_QOBJECT
- : public QObjectPrivate
-#endif
-{
-#ifndef QT_NO_QOBJECT
- Q_DECLARE_PUBLIC(QSharedMemory)
-#endif
-
-public:
- QSharedMemoryPrivate();
-
- void *memory;
- qsizetype size;
- QString key;
- QString nativeKey;
- QSharedMemory::SharedMemoryError error;
- QString errorString;
-#ifndef QT_NO_SYSTEMSEMAPHORE
- QSystemSemaphore systemSemaphore;
- bool lockedByMe;
-#endif
-
- static int createUnixKeyFile(const QString &fileName);
- static QString makePlatformSafeKey(const QString &key,
- const QString &prefix = QLatin1String("qipc_sharedmemory_"));
-#ifdef Q_OS_WIN
- Qt::HANDLE handle();
-#elif defined(QT_POSIX_IPC)
- int handle();
-#else
- key_t handle();
-#endif
- bool initKey();
- bool cleanHandle();
- bool create(qsizetype size);
- bool attach(QSharedMemory::AccessMode mode);
- bool detach();
-
- void setErrorString(QLatin1String function);
-
-#ifndef QT_NO_SYSTEMSEMAPHORE
- bool tryLocker(QSharedMemoryLocker *locker, const QString &function) {
- if (!locker->lock()) {
- errorString = QSharedMemory::tr("%1: unable to lock").arg(function);
- error = QSharedMemory::LockError;
- return false;
- }
- return true;
- }
-#endif // QT_NO_SYSTEMSEMAPHORE
-
-private:
-#ifdef Q_OS_WIN
- Qt::HANDLE hand;
-#elif defined(QT_POSIX_IPC)
- int hand;
-#else
- key_t unix_key;
-#endif
-};
-
-QT_END_NAMESPACE
-
-#endif // QT_NO_SHAREDMEMORY
-
-#endif // QSHAREDMEMORY_P_H
-