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 #include "cachereply.h"

 CacheReply::CacheReply(QIODevice *cacheDev, const QNetworkRequest &req,
                        QNetworkAccessManager::Operation op, QNetworkCacheMetaData meta,
                        QObject *parent) :
   QNetworkReply(parent), mCacheDev(cacheDev) {
   setRequest(req);
   setUrl(req.url());
   setOperation(op);
   setAttribute(QNetworkRequest::HttpStatusCodeAttribute, 200);
   setFinished(true);
   QNetworkReply::open(QIODevice::ReadOnly);

   qint64 size = cacheDev->size();
   foreach(QNetworkCacheMetaData::RawHeader header, meta.rawHeaders()) {
     setRawHeader(header.first, header.second);
   }
   QMetaObject::invokeMethod(this, "metaDataChanged", Qt::QueuedConnection);

   QMetaObject::invokeMethod(this, "downloadProgress", Qt::QueuedConnection,
                             Q_ARG(qint64,size), Q_ARG(qint64, size));
   QMetaObject::invokeMethod(this, "readyRead", Qt::QueuedConnection);
   QMetaObject::invokeMethod(this, "finished", Qt::QueuedConnection);
 }

 void CacheReply::abort()
 {
   close();
 }

 qint64 CacheReply::bytesAvailable() const
 {
   return mCacheDev->bytesAvailable();
 }

 bool CacheReply::isSequential() const
 {
   return mCacheDev->isSequential();
 }

 qint64 CacheReply::size() const
 {
   return mCacheDev->size();
 }

 qint64 CacheReply::readData(char *data, qint64 maxlen)  {
   return mCacheDev->read(data, maxlen);
 }

 CacheReply::~CacheReply() {
   close();
   if (mCacheDev) {
     mCacheDev->close();