| /**************************************************************************** |
| ** |
| ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). |
| ** All rights reserved. |
| ** Contact: Nokia Corporation (qt-info@nokia.com) |
| ** |
| ** This file is part of the QtCore module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** GNU Lesser General Public License Usage |
| ** This file may be used under the terms of the GNU Lesser General Public |
| ** License version 2.1 as published by the Free Software Foundation and |
| ** appearing in the file LICENSE.LGPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU Lesser |
| ** General Public License version 2.1 requirements will be met: |
| ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
| ** |
| ** In addition, as a special exception, Nokia gives you certain additional |
| ** rights. These rights are described in the Nokia Qt LGPL Exception |
| ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU General |
| ** Public License version 3.0 as published by the Free Software Foundation |
| ** and appearing in the file LICENSE.GPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU General |
| ** Public License version 3.0 requirements will be met: |
| ** http://www.gnu.org/copyleft/gpl.html. |
| ** |
| ** Other Usage |
| ** Alternatively, this file may be used in accordance with the terms and |
| ** conditions contained in a signed written agreement between you and Nokia. |
| ** |
| ** |
| ** |
| ** |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef QSHAREDMEMORY_H |
| #define QSHAREDMEMORY_H |
| |
| #include <QtCore/qobject.h> |
| |
| QT_BEGIN_HEADER |
| |
| QT_BEGIN_NAMESPACE |
| |
| QT_MODULE(Core) |
| |
| #ifndef QT_NO_SHAREDMEMORY |
| |
| class QSharedMemoryPrivate; |
| |
| class Q_CORE_EXPORT QSharedMemory : public QObject |
| { |
| Q_OBJECT |
| Q_DECLARE_PRIVATE(QSharedMemory) |
| |
| public: |
| enum AccessMode |
| { |
| ReadOnly, |
| ReadWrite |
| }; |
| |
| enum SharedMemoryError |
| { |
| NoError, |
| PermissionDenied, |
| InvalidSize, |
| KeyError, |
| AlreadyExists, |
| NotFound, |
| LockError, |
| OutOfResources, |
| UnknownError |
| }; |
| |
| QSharedMemory(QObject *parent = 0); |
| QSharedMemory(const QString &key, QObject *parent = 0); |
| ~QSharedMemory(); |
| |
| void setKey(const QString &key); |
| QString key() const; |
| |
| bool create(int size, AccessMode mode = ReadWrite); |
| int size() const; |
| |
| bool attach(AccessMode mode = ReadWrite); |
| bool isAttached() const; |
| bool detach(); |
| |
| void *data(); |
| const void* constData() const; |
| const void *data() const; |
| |
| #ifndef QT_NO_SYSTEMSEMAPHORE |
| bool lock(); |
| bool unlock(); |
| #endif |
| |
| SharedMemoryError error() const; |
| QString errorString() const; |
| |
| private: |
| Q_DISABLE_COPY(QSharedMemory) |
| }; |
| |
| #endif // QT_NO_SHAREDMEMORY |
| |
| QT_END_NAMESPACE |
| |
| QT_END_HEADER |
| |
| #endif // QSHAREDMEMORY_H |
| |