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42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
/* Copyright (c) 2003, 2007 MySQL AB, 2009 Sun Microsystems, Inc.
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Use is subject to license terms.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 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 St, Fifth Floor, Boston, MA 02110-1335 USA */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <my_dir.h>
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class Transparent_file
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{
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File filedes;
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uchar *buff; /* in-memory window to the file or mmaped area */
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/* current window sizes */
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my_off_t lower_bound;
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my_off_t upper_bound;
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uint buff_size;
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public:
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Transparent_file();
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~Transparent_file();
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void init_buff(File filedes_arg);
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uchar *ptr();
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my_off_t start();
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my_off_t end();
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char get_value (my_off_t offset);
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my_off_t read_next();
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};
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