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| |
| #ifndef QNETWORKDISKCACHE_P_H |
| #define QNETWORKDISKCACHE_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QtNetwork/private/qtnetworkglobal_p.h> |
| #include "private/qabstractnetworkcache_p.h" |
| |
| #include <qbuffer.h> |
| #include <qhash.h> |
| #include <qtemporaryfile.h> |
| |
| QT_REQUIRE_CONFIG(networkdiskcache); |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QFile; |
| |
| class QCacheItem |
| { |
| public: |
| QCacheItem() : file(nullptr) |
| { |
| } |
| ~QCacheItem() |
| { |
| reset(); |
| } |
| |
| QNetworkCacheMetaData metaData; |
| QBuffer data; |
| QTemporaryFile *file; |
| inline qint64 size() const |
| { return file ? file->size() : data.size(); } |
| |
| inline void reset() { |
| metaData = QNetworkCacheMetaData(); |
| data.close(); |
| delete file; |
| file = nullptr; |
| } |
| void writeHeader(QFile *device) const; |
| void writeCompressedData(QFile *device) const; |
| bool read(QFile *device, bool readData); |
| |
| bool canCompress() const; |
| }; |
| |
| class QNetworkDiskCachePrivate : public QAbstractNetworkCachePrivate |
| { |
| public: |
| QNetworkDiskCachePrivate() |
| : QAbstractNetworkCachePrivate() |
| , maximumCacheSize(1024 * 1024 * 50) |
| , currentCacheSize(-1) |
| {} |
| |
| static QString uniqueFileName(const QUrl &url); |
| QString cacheFileName(const QUrl &url) const; |
| QString tmpCacheFileName() const; |
| bool removeFile(const QString &file); |
| void storeItem(QCacheItem *item); |
| void prepareLayout(); |
| static quint32 crc32(const char *data, uint len); |
| |
| mutable QCacheItem lastItem; |
| QString cacheDirectory; |
| QString dataDirectory; |
| qint64 maximumCacheSize; |
| qint64 currentCacheSize; |
| |
| QHash<QIODevice*, QCacheItem*> inserting; |
| Q_DECLARE_PUBLIC(QNetworkDiskCache) |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // QNETWORKDISKCACHE_P_H |