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/* Copyright (c) 2003, 2007 MySQL AB, 2009 Sun Microsystems, Inc.
Use is subject to license terms.
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 St, Fifth Floor, Boston, MA 02110-1301 USA */
#include <sys/types.h>
#include <sys/stat.h>
#include <my_dir.h>
class Transparent_file
{
File filedes;
uchar *buff; /* in-memory window to the file or mmaped area */
/* current window sizes */
my_off_t lower_bound;
my_off_t upper_bound;
uint buff_size;
public:
Transparent_file();
~Transparent_file();
void init_buff(File filedes_arg);
uchar *ptr();
my_off_t start();
my_off_t end();
char get_value (my_off_t offset);
my_off_t read_next();
};
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