qt-everywhere-src-5.14.1/qtbase/src/network/access/qnetworkaccessfilebackend_p.h

/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtNetwork module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#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 <QtNetwork/private/qtnetworkglobal_p.h>
#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() override;
    virtual void closeDownstreamChannel() override;

    virtual void downstreamReadyWrite() override;

public slots:
    void uploadReadyReadSlot();
private:
    QFile file;
    qint64 totalBytes;
    bool hasUploadFinished;

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

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

QT_END_NAMESPACE

#endif