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networkdiskcache.h
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2  * LeechCraft - modular cross-platform feature rich internet client.
3  * Copyright (C) 2006-2014 Georg Rudoy
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29 
30 #pragma once
31 
32 #include <QNetworkDiskCache>
33 #include <QMutex>
34 #include <QHash>
35 #include "networkconfig.h"
36 
37 template<typename T>
39 
40 namespace LeechCraft
41 {
42 namespace Util
43 {
57  class UTIL_NETWORK_API NetworkDiskCache : public QNetworkDiskCache
58  {
59  Q_OBJECT
60 
61  qint64 CurrentSize_;
62 
63  mutable QMutex InsertRemoveMutex_;
64 
65  QFutureWatcher<qint64> *GarbageCollectorWatcher_;
66 
67  QHash<QIODevice*, QUrl> PendingDev2Url_;
68  QHash<QUrl, QList<QIODevice*>> PendingUrl2Devs_;
69  public:
80  NetworkDiskCache (const QString& subpath, QObject *parent = 0);
81 
87  ~NetworkDiskCache ();
88 
91  virtual qint64 cacheSize () const;
92 
95  virtual QIODevice* data (const QUrl& url);
96 
99  virtual void insert (QIODevice *device);
100 
103  virtual QNetworkCacheMetaData metaData (const QUrl& url);
104 
107  virtual QIODevice* prepare (const QNetworkCacheMetaData&);
108 
111  virtual bool remove (const QUrl& url);
112 
115  virtual void updateMetaData (const QNetworkCacheMetaData& metaData);
116  protected:
123  virtual qint64 expire ();
124  public slots:
132  void collectGarbage ();
133  private slots:
134  void handleCollectorFinished ();
135  };
136 }
137 }
138 
A thread-safe garbage-collected network disk cache.
#define UTIL_NETWORK_API
Definition: networkconfig.h:37