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/* dataprovider.h
Copyright (C) 2004 Klarälvdalens Datakonsult AB
Copyright (c) 2016 Intevation GmbH
This file is part of QGPGME.
QGPGME is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published
by the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
QGPGME is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with QGPGME; see the file COPYING.LIB. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
// -*- c++ -*-
#ifndef __QGPGME_DATAPROVIDER_H__
#define __QGPGME_DATAPROVIDER_H__
#include "qgpgme_export.h"
#include <interfaces/dataprovider.h>
#include <memory>
#include <QtCore/QByteArray>
class QIODevice;
namespace QGpgME
{
class QGPGME_EXPORT QByteArrayDataProvider : public GpgME::DataProvider
{
public:
QByteArrayDataProvider();
explicit QByteArrayDataProvider(const QByteArray &initialData);
~QByteArrayDataProvider();
const QByteArray &data() const
{
return mArray;
}
private:
// these shall only be accessed through the dataprovider
// interface, where they're public:
bool isSupported(Operation) const
{
return true;
}
ssize_t read(void *buffer, size_t bufSize);
ssize_t write(const void *buffer, size_t bufSize);
off_t seek(off_t offset, int whence);
void release();
private:
QByteArray mArray;
off_t mOff;
};
class QGPGME_EXPORT QIODeviceDataProvider : public GpgME::DataProvider
{
public:
explicit QIODeviceDataProvider(const std::shared_ptr<QIODevice> &initialData);
~QIODeviceDataProvider();
const std::shared_ptr<QIODevice> &ioDevice() const
{
return mIO;
}
private:
// these shall only be accessed through the dataprovider
// interface, where they're public:
bool isSupported(Operation) const;
ssize_t read(void *buffer, size_t bufSize);
ssize_t write(const void *buffer, size_t bufSize);
off_t seek(off_t offset, int whence);
void release();
private:
const std::shared_ptr<QIODevice> mIO;
bool mErrorOccurred : 1;
bool mHaveQProcess : 1;
};
} // namespace QGpgME
#endif

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