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98 lines
2.6 KiB
C++
98 lines
2.6 KiB
C++
/*
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data.h - wraps a gpgme data object
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Copyright (C) 2003,2004 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
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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GPGME++ is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with GPGME++; see the file COPYING.LIB. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef __GPGMEPP_DATA_H__
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#define __GPGMEPP_DATA_H__
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#include <gpgme++/global.h>
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#include <boost/shared_ptr.hpp>
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#include <sys/types.h> // for size_t, off_t
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#include <cstdio> // FILE
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#include <algorithm>
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namespace GpgME {
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class DataProvider;
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class Error;
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class GPGMEPP_EXPORT Data {
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struct Null {};
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public:
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/* implicit */ Data( const Null & );
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Data();
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explicit Data( gpgme_data_t data );
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// Memory-Based Data Buffers:
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Data( const char * buffer, size_t size, bool copy=true );
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explicit Data( const char * filename );
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Data( const char * filename, off_t offset, size_t length );
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Data( std::FILE * fp, off_t offset, size_t length );
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// File-Based Data Buffers:
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explicit Data( std::FILE * fp );
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explicit Data( int fd );
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// Callback-Based Data Buffers:
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explicit Data( DataProvider * provider );
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static Null null;
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const Data & operator=( Data other ) {
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swap( other );
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return *this;
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}
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void swap( Data & other ) {
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using std::swap;
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swap( this->d, other.d );
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}
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bool isNull() const;
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enum Encoding {
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AutoEncoding,
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BinaryEncoding,
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Base64Encoding,
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ArmorEncoding
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};
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Encoding encoding() const;
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Error setEncoding( Encoding encoding );
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char * fileName() const;
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Error setFileName( const char * name );
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ssize_t read( void * buffer, size_t length );
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ssize_t write( const void * buffer, size_t length );
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off_t seek( off_t offset, int whence );
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class Private;
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Private * impl() { return d.get(); }
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const Private * impl() const { return d.get(); }
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private:
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boost::shared_ptr<Private> d;
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};
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}
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GPGMEPP_MAKE_STD_SWAP_SPECIALIZATION( Data )
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#endif // __GPGMEPP_DATA_H__
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