grive2/libgrive/src/util/MemMap.cc

47 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.
*/
#include "MemMap.hh"
#include "File.hh"
namespace gr {
MemMap::MemMap( File& file, off_t offset, std::size_t length ) :
m_addr ( file.Map( offset, length ) ),
m_length( length )
{
}
MemMap::~MemMap()
{
File::UnMap( m_addr, m_length ) ;
}
void* MemMap::Addr() const
{
return m_addr ;
}
std::size_t MemMap::Length() const
{
return m_length ;
}
} // end of namespace