184 lines
7.3 KiB
C++
184 lines
7.3 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QSHAREDPOINTER_H
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#define QSHAREDPOINTER_H
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#include <QtCore/qglobal.h>
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#include <QtCore/qatomic.h>
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#include <QtCore/qshareddata.h>
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#ifndef Q_QDOC
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# include <QtCore/qsharedpointer_impl.h>
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#else
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#include <memory> // for std::shared_ptr
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QT_BEGIN_NAMESPACE
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// These classes are here to fool qdoc into generating a better documentation
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template <class T>
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class QSharedPointer
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{
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public:
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// basic accessor functions
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T *data() const;
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T *get() const;
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bool isNull() const;
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operator bool() const;
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bool operator!() const;
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T &operator*() const;
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T *operator ->() const;
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// constructors
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QSharedPointer();
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template <typename X> explicit QSharedPointer(X *ptr);
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template <typename X, typename Deleter> QSharedPointer(X *ptr, Deleter d);
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QSharedPointer(std::nullptr_t);
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template <typename Deleter> QSharedPointer(std::nullptr_t, Deleter d);
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QSharedPointer(const QSharedPointer<T> &other);
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QSharedPointer(const QWeakPointer<T> &other);
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~QSharedPointer() { }
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QSharedPointer<T> &operator=(const QSharedPointer<T> &other);
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QSharedPointer<T> &operator=(const QWeakPointer<T> &other);
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void swap(QSharedPointer<T> &other);
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QWeakPointer<T> toWeakRef() const;
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void clear();
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void reset();
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void reset(T *t);
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template <typename Deleter>
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void reset(T *t, Deleter deleter);
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// casts:
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template <class X> QSharedPointer<X> staticCast() const;
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template <class X> QSharedPointer<X> dynamicCast() const;
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template <class X> QSharedPointer<X> constCast() const;
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template <class X> QSharedPointer<X> objectCast() const;
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template <typename... Args>
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static inline QSharedPointer<T> create(Args &&... args);
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};
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template <class T>
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class QWeakPointer
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{
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public:
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// basic accessor functions
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bool isNull() const;
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operator bool() const;
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bool operator!() const;
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// constructors:
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QWeakPointer();
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QWeakPointer(const QWeakPointer<T> &other);
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QWeakPointer(const QSharedPointer<T> &other);
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~QWeakPointer();
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QWeakPointer<T> &operator=(const QWeakPointer<T> &other);
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QWeakPointer<T> &operator=(const QSharedPointer<T> &other);
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QWeakPointer(const QObject *other);
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QWeakPointer<T> &operator=(const QObject *other);
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void swap(QWeakPointer<T> &other);
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T *data() const;
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void clear();
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QSharedPointer<T> toStrongRef() const;
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QSharedPointer<T> lock() const;
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};
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template <class T>
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class QEnableSharedFromThis
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{
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public:
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QSharedPointer<T> sharedFromThis();
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QSharedPointer<const T> sharedFromThis() const;
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};
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template<class T, class X> bool operator==(const QSharedPointer<T> &ptr1, const QSharedPointer<X> &ptr2);
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template<class T, class X> bool operator!=(const QSharedPointer<T> &ptr1, const QSharedPointer<X> &ptr2);
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template<class T, class X> bool operator==(const QSharedPointer<T> &ptr1, const X *ptr2);
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template<class T, class X> bool operator!=(const QSharedPointer<T> &ptr1, const X *ptr2);
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template<class T, class X> bool operator==(const T *ptr1, const QSharedPointer<X> &ptr2);
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template<class T, class X> bool operator!=(const T *ptr1, const QSharedPointer<X> &ptr2);
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template<class T, class X> bool operator==(const QWeakPointer<T> &ptr1, const QSharedPointer<X> &ptr2);
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template<class T, class X> bool operator!=(const QWeakPointer<T> &ptr1, const QSharedPointer<X> &ptr2);
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template<class T, class X> bool operator==(const QSharedPointer<T> &ptr1, const QWeakPointer<X> &ptr2);
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template<class T, class X> bool operator!=(const QSharedPointer<T> &ptr1, const QWeakPointer<X> &ptr2);
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template<class T> bool operator==(const QSharedPointer<T> &lhs, std::nullptr_t);
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template<class T> bool operator!=(const QSharedPointer<T> &lhs, std::nullptr_t);
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template<class T> bool operator==(std::nullptr_t, const QSharedPointer<T> &rhs);
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template<class T> bool operator!=(std::nullptr_t, const QSharedPointer<T> &rhs);
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template<class T> bool operator==(const QWeakPointer<T> &lhs, std::nullptr_t);
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template<class T> bool operator!=(const QWeakPointer<T> &lhs, std::nullptr_t);
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template<class T> bool operator==(std::nullptr_t, const QWeakPointer<T> &rhs);
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template<class T> bool operator!=(std::nullptr_t, const QWeakPointer<T> &rhs);
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template <class X, class T> QSharedPointer<X> qSharedPointerCast(const QSharedPointer<T> &other);
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template <class X, class T> QSharedPointer<X> qSharedPointerCast(const QWeakPointer<T> &other);
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template <class X, class T> QSharedPointer<X> qSharedPointerDynamicCast(const QSharedPointer<T> &src);
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template <class X, class T> QSharedPointer<X> qSharedPointerDynamicCast(const QWeakPointer<T> &src);
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template <class X, class T> QSharedPointer<X> qSharedPointerConstCast(const QSharedPointer<T> &src);
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template <class X, class T> QSharedPointer<X> qSharedPointerConstCast(const QWeakPointer<T> &src);
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template <class X, class T> QSharedPointer<X> qSharedPointerObjectCast(const QSharedPointer<T> &src);
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template <class X, class T> QSharedPointer<X> qSharedPointerObjectCast(const QWeakPointer<T> &src);
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template <typename X, class T> std::shared_ptr<X> qobject_pointer_cast(const std::shared_ptr<T> &src);
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template <typename X, class T> std::shared_ptr<X> qobject_pointer_cast(std::shared_ptr<T> &&src);
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template <typename X, class T> std::shared_ptr<X> qSharedPointerObjectCast(const std::shared_ptr<T> &src);
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template <typename X, class T> std::shared_ptr<X> qSharedPointerObjectCast(std::shared_ptr<T> &&src);
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template <class X, class T> QWeakPointer<X> qWeakPointerCast(const QWeakPointer<T> &src);
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QT_END_NAMESPACE
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#endif // Q_QDOC
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#endif // QSHAREDPOINTER_H
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