forked from qt-creator/qt-creator
f4f86078a5
Fix various warnings Change-Id: I50e0bac1eade188e2aafdc38f7507138732822d0 Reviewed-by: Christian Stenger <christian.stenger@qt.io>
90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2016 The Qt Company Ltd.
|
|
** Contact: https://www.qt.io/licensing/
|
|
**
|
|
** This file is part of Qt Creator.
|
|
**
|
|
** 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 General Public License Usage
|
|
** Alternatively, this file may be used under the terms of the GNU
|
|
** General Public License version 3 as published by the Free Software
|
|
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
|
|
** 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-3.0.html.
|
|
**
|
|
****************************************************************************/
|
|
|
|
#pragma once
|
|
|
|
#include <QSharedMemory>
|
|
#include <QSystemSemaphore>
|
|
|
|
namespace QmlDesigner {
|
|
|
|
class SharedMemory
|
|
{
|
|
friend class SharedMemoryLocker;
|
|
public:
|
|
SharedMemory();
|
|
SharedMemory(const QString &key);
|
|
~SharedMemory();
|
|
|
|
void setKey(const QString &key);
|
|
QString key() const;
|
|
|
|
bool create(int size, QSharedMemory::AccessMode mode = QSharedMemory::ReadWrite);
|
|
int size() const;
|
|
|
|
bool attach(QSharedMemory::AccessMode mode = QSharedMemory::ReadWrite);
|
|
bool isAttached() const;
|
|
bool detach();
|
|
|
|
void *data();
|
|
const void* constData() const;
|
|
const void *data() const;
|
|
|
|
bool lock();
|
|
bool unlock();
|
|
|
|
QSharedMemory::SharedMemoryError error() const;
|
|
QString errorString() const;
|
|
|
|
protected:
|
|
#ifdef Q_OS_UNIX
|
|
bool initKeyInternal();
|
|
void cleanHandleInternal();
|
|
bool createInternal(QSharedMemory::AccessMode mode, size_t size);
|
|
bool attachInternal(QSharedMemory::AccessMode mode);
|
|
bool detachInternal();
|
|
int handle();
|
|
|
|
void setErrorString(const QString &function);
|
|
#endif
|
|
private:
|
|
#ifndef Q_OS_UNIX
|
|
QSharedMemory m_sharedMemory;
|
|
#else
|
|
void *m_memory;
|
|
size_t m_size;
|
|
QString m_key;
|
|
QByteArray m_nativeKey;
|
|
QSharedMemory::SharedMemoryError m_error;
|
|
QString m_errorString;
|
|
QSystemSemaphore m_systemSemaphore;
|
|
bool m_lockedByMe;
|
|
int m_fileHandle;
|
|
bool m_createdByMe;
|
|
#endif
|
|
};
|
|
|
|
} // namespace QmlDesigner
|