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/* Copyright (C) 2000 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; either version 2 of the License, or
(at your option) any later version.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* Ger tillbaka en struct med information om isam-filen */
#include "isamdef.h"
#ifdef __WIN__
#include <sys/stat.h>
#endif
ulong nisam_position(N_INFO *info)
{
return info->lastpos;
}
/* If flag == 1 one only gets pos of last record */
/* if flag == 2 one get current info (no sync from database */
int nisam_info(N_INFO *info, register N_ISAMINFO *x, int flag)
{
struct stat state;
ISAM_SHARE *share=info->s;
DBUG_ENTER("nisam_info");
x->recpos = info->lastpos;
if (flag & (HA_STATUS_TIME | HA_STATUS_CONST | HA_STATUS_VARIABLE |
HA_STATUS_ERRKEY | HA_STATUS_NO_LOCK))
{
#ifndef NO_LOCKING
if (!(flag & HA_STATUS_NO_LOCK))
{
pthread_mutex_lock(&share->intern_lock);
VOID(_nisam_readinfo(info,F_RDLCK,0));
VOID(_nisam_writeinfo(info,0));
pthread_mutex_unlock(&share->intern_lock);
}
#endif
x->records = share->state.records;
x->deleted = share->state.del;
x->delete_length= share->state.empty;
x->keys = share->state.keys;
x->reclength = share->base.reclength;
x->mean_reclength= share->state.records ?
(share->state.data_file_length-share->state.empty)/share->state.records :
share->min_pack_length;
x->data_file_length=share->state.data_file_length;
x->max_data_file_length=share->base.max_data_file_length;
x->index_file_length=share->state.key_file_length;
x->max_index_file_length=share->base.max_key_file_length;
x->filenr = info->dfile;
x->errkey = info->errkey;
x->dupp_key_pos= info->dupp_key_pos;
x->options = share->base.options;
x->create_time=share->base.create_time;
x->isamchk_time=share->base.isamchk_time;
x->rec_per_key=share->base.rec_per_key;
if ((flag & HA_STATUS_TIME) && !fstat(info->dfile,&state))
x->update_time=state.st_mtime;
else
x->update_time=0;
x->sortkey= -1; /* No clustering */
}
DBUG_RETURN(0);
} /* nisam_info */
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