mirror of https://github.com/vitalif/grive2
83 lines
2.1 KiB
C++
83 lines
2.1 KiB
C++
/*
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grive: an GPL program to sync a local directory with Google Drive
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Copyright (C) 2012 Wan Wai Ho
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation version 2
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of the License.
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This program 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 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 this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#pragma once
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#include "DataStream.hh"
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#include "Exception.hh"
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#include "FileSystem.hh"
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#include "Types.hh"
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#include <string>
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struct stat ;
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namespace gr {
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/** \brief A wrapper class for file read/write.
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It is a simple wrapper around the UNIX file descriptor. It will
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throw exceptions (i.e. Error) when it encounters errors.
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*/
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class File : public SeekStream
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{
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public :
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/// File specific errors. It often includes
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/// boost::errinfo_api_function and boost::errinfo_errno for the
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/// detail information.
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struct Error : virtual Exception {} ;
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public :
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File() ;
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File( const fs::path& path ) ;
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File( const fs::path& path, int mode ) ;
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~File( ) ;
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File( const File& rhs ) ;
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File& operator=( const File& rhs ) ;
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void Swap( File& other ) ;
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void OpenForRead( const fs::path& path ) ;
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void OpenForWrite( const fs::path& path, int mode = 0600 ) ;
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void Close() ;
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bool IsOpened() const ;
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std::size_t Read( char *ptr, std::size_t size ) ;
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std::size_t Write( const char *ptr, std::size_t size ) ;
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off_t Seek( off_t offset, int whence ) ;
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off_t Tell() const ;
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u64_t Size() const ;
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void Chmod( int mode ) ;
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void* Map( off_t offset, std::size_t length ) ;
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static void UnMap( void *addr, std::size_t length ) ;
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struct stat Stat() const ;
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private :
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void Open( const fs::path& path, int flags, int mode ) ;
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private :
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int m_fd ;
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} ;
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} // end of namespace
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