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#ifndef QNETWORKACCESSFILEBACKEND_P_H
#define QNETWORKACCESSFILEBACKEND_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of the Network Access API.  This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//

#include "qnetworkaccessbackend_p.h"
#include "qnetworkrequest.h"
#include "qnetworkreply.h"
#include "QtCore/qfile.h"

QT_BEGIN_NAMESPACE

class QNetworkAccessFileBackend: public QNetworkAccessBackend
{
    Q_OBJECT
public:
    QNetworkAccessFileBackend();
    virtual ~QNetworkAccessFileBackend();

    virtual void open();
    virtual void closeDownstreamChannel();
    virtual bool waitForDownstreamReadyRead(int msecs);

    virtual void downstreamReadyWrite();

public slots:
    void uploadReadyReadSlot();
protected:
    QNonContiguousByteDevice *uploadByteDevice;
private:
    QFile file;
    qint64 totalBytes;
    bool hasUploadFinished;

    bool loadFileInfo();
    bool readMoreFromFile();
};

class QNetworkAccessFileBackendFactory: public QNetworkAccessBackendFactory
{
public:
    virtual QNetworkAccessBackend *create(QNetworkAccessManager::Operation op,
                                          const QNetworkRequest &request) const;
};

QT_END_NAMESPACE

#endif