00001 /**************************************************************************** 00002 ** 00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). 00004 ** All rights reserved. 00005 ** Contact: Nokia Corporation (qt-info@nokia.com) 00006 ** 00007 ** This file is part of the QtNetwork module of the Qt Toolkit. 00008 ** 00009 ** $QT_BEGIN_LICENSE:LGPL$ 00010 ** Commercial Usage 00011 ** Licensees holding valid Qt Commercial licenses may use this file in 00012 ** accordance with the Qt Commercial License Agreement provided with the 00013 ** Software or, alternatively, in accordance with the terms contained in 00014 ** a written agreement between you and Nokia. 00015 ** 00016 ** GNU Lesser General Public License Usage 00017 ** Alternatively, this file may be used under the terms of the GNU Lesser 00018 ** General Public License version 2.1 as published by the Free Software 00019 ** Foundation and appearing in the file LICENSE.LGPL included in the 00020 ** packaging of this file. Please review the following information to 00021 ** ensure the GNU Lesser General Public License version 2.1 requirements 00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. 00023 ** 00024 ** In addition, as a special exception, Nokia gives you certain additional 00025 ** rights. These rights are described in the Nokia Qt LGPL Exception 00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module. 00027 ** 00028 ** GNU General Public License Usage 00029 ** Alternatively, this file may be used under the terms of the GNU 00030 ** General Public License version 3.0 as published by the Free Software 00031 ** Foundation and appearing in the file LICENSE.GPL included in the 00032 ** packaging of this file. Please review the following information to 00033 ** ensure the GNU General Public License version 3.0 requirements will be 00034 ** met: http://www.gnu.org/copyleft/gpl.html. 00035 ** 00036 ** If you have questions regarding the use of this file, please contact 00037 ** Nokia at qt-info@nokia.com. 00038 ** $QT_END_LICENSE$ 00039 ** 00040 ****************************************************************************/ 00041 00042 #ifndef QNETWORKDISKCACHE_H 00043 #define QNETWORKDISKCACHE_H 00044 00045 #include <QtNetwork/qabstractnetworkcache.h> 00046 00047 QT_BEGIN_HEADER 00048 00049 QT_BEGIN_NAMESPACE 00050 00051 QT_MODULE(Network) 00052 00053 #ifndef QT_NO_NETWORKDISKCACHE 00054 00055 class QNetworkDiskCachePrivate; 00056 class Q_NETWORK_EXPORT QNetworkDiskCache : public QAbstractNetworkCache 00057 { 00058 Q_OBJECT 00059 00060 public: 00061 explicit QNetworkDiskCache(QObject *parent = 0); 00062 ~QNetworkDiskCache(); 00063 00064 QString cacheDirectory() const; 00065 void setCacheDirectory(const QString &cacheDir); 00066 00067 qint64 maximumCacheSize() const; 00068 void setMaximumCacheSize(qint64 size); 00069 00070 qint64 cacheSize() const; 00071 QNetworkCacheMetaData metaData(const QUrl &url); 00072 void updateMetaData(const QNetworkCacheMetaData &metaData); 00073 QIODevice *data(const QUrl &url); 00074 bool remove(const QUrl &url); 00075 QIODevice *prepare(const QNetworkCacheMetaData &metaData); 00076 void insert(QIODevice *device); 00077 00078 QNetworkCacheMetaData fileMetaData(const QString &fileName) const; 00079 00080 public Q_SLOTS: 00081 void clear(); 00082 00083 protected: 00084 virtual qint64 expire(); 00085 00086 private: 00087 Q_DECLARE_PRIVATE(QNetworkDiskCache) 00088 Q_DISABLE_COPY(QNetworkDiskCache) 00089 }; 00090 00091 #endif // QT_NO_NETWORKDISKCACHE 00092 00093 QT_END_NAMESPACE 00094 00095 QT_END_HEADER 00096 00097 #endif // QNETWORKDISKCACHE_H