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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 Sun Microsystems, Inc.
*
* 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 <drizzled/sql_sort.h>
#pragma once
namespace drizzled
{
/* Information on state of filesort */
class filesort_info
{
public:
internal::io_cache_st *io_cache; /* If sorted through filesort */
unsigned char **sort_keys; /* Buffer for sorting keys */
unsigned char *buffpek; /* Buffer for buffpek structures */
uint32_t buffpek_len; /* Max number of buffpeks in the buffer */
unsigned char *addon_buf; /* Pointer to a buffer if sorted with fields */
size_t addon_length; /* Length of the buffer */
sort_addon_field *addon_field; /* Pointer to the fields info */
void (*unpack)(sort_addon_field *, unsigned char *); /* To unpack back */
unsigned char *record_pointers; /* If sorted in memory */
ha_rows found_records; /* How many records in sort */
filesort_info() :
io_cache(0),
sort_keys(0),
buffpek(0),
buffpek_len(0),
addon_buf(0),
addon_length(0),
addon_field(0),
unpack(0),
record_pointers(0),
found_records()
{ }
filesort_info(const filesort_info& arg) :
io_cache(arg.io_cache),
sort_keys(arg.sort_keys),
buffpek(arg.buffpek),
buffpek_len(arg.buffpek_len),
addon_buf(arg.addon_buf),
addon_length(arg.addon_length),
addon_field(arg.addon_field),
unpack(arg.unpack),
record_pointers(arg.record_pointers),
found_records(arg.found_records)
{
}
~filesort_info()
{
}
};
} /* namespace drizzled */
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