grive2/libgrive/src/util/MemMap.hh

48 lines
1.1 KiB
C++

/*
grive: an GPL program to sync a local directory with Google Drive
Copyright (C) 2012 Wan Wai Ho
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation version 2
of the License.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#pragma once
#include "Exception.hh"
#include "Types.hh"
#include <cstddef>
namespace gr {
class File ;
class MemMap
{
public :
struct Error : virtual Exception {} ;
public :
MemMap( File& file, off_t offset, std::size_t length ) ;
~MemMap() ;
void* Addr() const ;
std::size_t Length() const ;
private :
void *m_addr ;
std::size_t m_length ;
} ;
} // end of namespace