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49 lines
1.5 KiB
49 lines
1.5 KiB
/* interface/dataprovider.h - Interface for data sources
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Copyright (C) 2003 Klarälvdalens Datakonsult AB
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This file is part of GPGME++.
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GPGME++ is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GPGME++ is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GPGME; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __GPGMEPP_INTERFACES_DATAPROVIDER_H__
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#define __GPGMEPP_INTERFACES_DATAPROVIDER_H__
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#include <sys/types.h>
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#include <kdemacros.h>
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namespace GpgME {
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class KDE_EXPORT DataProvider {
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public:
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virtual ~DataProvider() {}
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enum Operation {
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Read, Write, Seek, Release
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};
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virtual bool isSupported( Operation op ) const = 0;
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virtual ssize_t read( void * buffer, size_t bufSize ) = 0;
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virtual ssize_t write( const void * buffer, size_t bufSize ) = 0;
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virtual off_t seek( off_t offset, int whence ) = 0;
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virtual void release() = 0;
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};
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} // namespace GpgME
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#endif // __GPGMEPP_INTERFACES_DATAPROVIDER_H__
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