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https://bitbucket.org/smil3y/katie.git
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120 lines
3.4 KiB
C++
120 lines
3.4 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Copyright (C) 2016-2019 Ivailo Monev
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**
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** This file is part of the QtNetwork module of the Katie Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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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 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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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 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.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 QNETWORKDISKCACHE_P_H
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#define QNETWORKDISKCACHE_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Katie API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include "qabstractnetworkcache_p.h"
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#include "qbuffer.h"
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#include "qhash.h"
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#include "qtemporaryfile.h"
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#ifndef QT_NO_NETWORKDISKCACHE
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QT_BEGIN_NAMESPACE
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class QFile;
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class QCacheItem
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{
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public:
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QCacheItem() : file(0)
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{
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}
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~QCacheItem()
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{
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reset();
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}
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QNetworkCacheMetaData metaData;
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QBuffer data;
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QTemporaryFile *file;
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inline qint64 size() const
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{ return file ? file->size() : data.size(); }
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inline void reset() {
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metaData = QNetworkCacheMetaData();
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data.close();
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delete file;
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file = 0;
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}
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void writeHeader(QFile *device) const;
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void writeCompressedData(QFile *device) const;
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bool read(QFile *device, bool readData);
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bool canCompress() const;
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};
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class QNetworkDiskCachePrivate : public QAbstractNetworkCachePrivate
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{
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public:
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QNetworkDiskCachePrivate()
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: QAbstractNetworkCachePrivate()
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, maximumCacheSize(1024 * 1024 * 50)
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, currentCacheSize(-1)
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{}
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static QString uniqueFileName(const QUrl &url);
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QString cacheFileName(const QUrl &url) const;
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QString tmpCacheFileName() const;
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bool removeFile(const QString &file);
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void storeItem(QCacheItem *item);
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void prepareLayout();
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mutable QCacheItem lastItem;
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QString cacheDirectory;
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QString dataDirectory;
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qint64 maximumCacheSize;
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qint64 currentCacheSize;
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QHash<QIODevice*, QCacheItem*> inserting;
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Q_DECLARE_PUBLIC(QNetworkDiskCache)
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};
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QT_END_NAMESPACE
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#endif // QT_NO_NETWORKDISKCACHE
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#endif // QNETWORKDISKCACHE_P_H
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