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