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/*
Copyright(C) 2011-2016 Brazil
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#ifdef WIN32
# include <windows.h>
#endif // WIN32
#include "dat.hpp"
namespace grn {
namespace dat {
class FileImpl {
public:
FileImpl();
~FileImpl();
void create(const char *path, UInt64 size);
void open(const char *path);
void close();
void *ptr() const {
return ptr_;
}
UInt64 size() const {
return size_;
}
void swap(FileImpl *rhs);
void flush();
private:
void *ptr_;
UInt64 size_;
#ifdef WIN32
HANDLE file_;
HANDLE map_;
LPVOID addr_;
#else // WIN32
int fd_;
void *addr_;
::size_t length_;
#endif // WIN32
void create_(const char *path, UInt64 size);
void open_(const char *path);
// Disallows copy and assignment.
FileImpl(const FileImpl &);
FileImpl &operator=(const FileImpl &);
};
} // namespace dat
} // namespace grn
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