Revision control
++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++ // Qt-Security score:significant reason:default
++
++ #ifndef QSHAREDMEMORY_H
++ #define QSHAREDMEMORY_H
++
++ #include <QtCore/qtipccommon.h>
++ #ifndef QT_NO_QOBJECT
++ # include <QtCore/qobject.h>
++ #else
++ # include <QtCore/qobjectdefs.h>
++ # include <QtCore/qscopedpointer.h>
++ # include <QtCore/qstring.h>
++ #endif
++
++ QT_BEGIN_NAMESPACE
++
++ #if QT_CONFIG(sharedmemory)
++
++ class QSharedMemoryPrivate;
++
++ class Q_CORE_EXPORT QSharedMemory : public QObject
++ {
++ Q_OBJECT
++ Q_DECLARE_PRIVATE(QSharedMemory)
++
++ public:
++ enum AccessMode
++ {
++ ReadOnly,
++ ReadWrite
++ };
++ Q_ENUM(AccessMode)
++
++ enum SharedMemoryError
++ {
++ NoError,
++ PermissionDenied,
++ InvalidSize,
++ KeyError,
++ AlreadyExists,
++ NotFound,
++ LockError,
++ OutOfResources,
++ UnknownError
++ };
++ Q_ENUM(SharedMemoryError)
++
++ QSharedMemory(QObject *parent = nullptr);
++ QSharedMemory(const QNativeIpcKey &key, QObject *parent = nullptr);
++ ~QSharedMemory();
++
++ QSharedMemory(const QString &key, QObject *parent = nullptr);
++ void setKey(const QString &key);
++ QString key() const;
++
++ void setNativeKey(const QNativeIpcKey &key);
++ void setNativeKey(const QString &key, QNativeIpcKey::Type type = QNativeIpcKey::legacyDefaultTypeForOs())
++ { setNativeKey({ key, type }); }
++ QString nativeKey() const;
++ QNativeIpcKey nativeIpcKey() const;
++ #if QT_CORE_REMOVED_SINCE(6, 5)
++ void setNativeKey(const QString &key);
++ #endif
++
++ bool create(qsizetype size, AccessMode mode = ReadWrite);
++ qsizetype size() const;
++
++ bool attach(AccessMode mode = ReadWrite);
++ bool isAttached() const;
++ bool detach();
++
++ void *data();
++ const void* constData() const;
++ const void *data() const;
++
++ #if QT_CONFIG(systemsemaphore)
++ bool lock();
++ bool unlock();
++ #endif
++
++ SharedMemoryError error() const;
++ QString errorString() const;
++
++ Q_DECL_CONST_FUNCTION static bool isKeyTypeSupported(QNativeIpcKey::Type type);
++ static QNativeIpcKey platformSafeKey(const QString &key,
++ QNativeIpcKey::Type type = QNativeIpcKey::DefaultTypeForOs);
++ static QNativeIpcKey legacyNativeKey(const QString &key,
++ QNativeIpcKey::Type type = QNativeIpcKey::legacyDefaultTypeForOs());
++
++ private:
++ Q_DISABLE_COPY(QSharedMemory)
++ };
++
++ #endif // QT_CONFIG(sharedmemory)
++
++ QT_END_NAMESPACE
++
++ #endif // QSHAREDMEMORY_H