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/* Copyright (C) 2006 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
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 02110-1335 USA */
/* Read through all rows sequntially */
#include "maria_def.h"
int maria_scan_init(register MARIA_HA *info)
{
DBUG_ENTER("maria_scan_init");
info->cur_row.nextpos= info->s->pack.header_length; /* Read first record */
info->lastinx= -1; /* Can't forward or backward */
if (info->opt_flag & WRITE_CACHE_USED && flush_io_cache(&info->rec_cache))
DBUG_RETURN(my_errno);
if ((*info->s->scan_init)(info))
DBUG_RETURN(my_errno);
DBUG_RETURN(0);
}
/*
Read a row based on position.
SYNOPSIS
maria_scan()
info Maria handler
record Read data here
RETURN
0 ok
HA_ERR_END_OF_FILE End of file
HA_ERR_RECORD_DELETED Record was deleted (can only happen for static rec)
# Error code
*/
int maria_scan(MARIA_HA *info, uchar *record)
{
DBUG_ENTER("maria_scan");
/* Init all but update-flag */
info->update&= (HA_STATE_CHANGED | HA_STATE_ROW_CHANGED);
DBUG_RETURN((*info->s->scan)(info, record, info->cur_row.nextpos, 1));
}
void maria_scan_end(MARIA_HA *info)
{
(*info->s->scan_end)(info);
}
int _ma_def_scan_remember_pos(MARIA_HA *info, MARIA_RECORD_POS *lastpos)
{
*lastpos= info->cur_row.lastpos;
return 0;
}
int _ma_def_scan_restore_pos(MARIA_HA *info, MARIA_RECORD_POS lastpos)
{
info->cur_row.nextpos= lastpos;
return 0;
}
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