diff options
Diffstat (limited to 'isam/info.c')
| -rw-r--r-- | isam/info.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/isam/info.c b/isam/info.c new file mode 100644 index 00000000000..43c15af908d --- /dev/null +++ b/isam/info.c @@ -0,0 +1,77 @@ +/* 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 */ |