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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* Return useful base information for an open table */
#include "maria_def.h"
#ifdef __WIN__
#include <sys/stat.h>
#endif
/* Get position to last record */
MARIA_RECORD_POS maria_position(MARIA_HA *info)
{
return info->cur_row.lastpos;
}
uint maria_max_key_length()
{
uint tmp= (_ma_max_key_length() - 8 - HA_MAX_KEY_SEG*3);
return min(HA_MAX_KEY_LENGTH, tmp);
}
/* Get information about the table */
/* if flag == 2 one get current info (no sync from database */
int maria_status(MARIA_HA *info, register MARIA_INFO *x, uint flag)
{
MY_STAT state;
MARIA_SHARE *share= info->s;
DBUG_ENTER("maria_status");
x->recpos= info->cur_row.lastpos;
if (flag == HA_STATUS_POS)
DBUG_RETURN(0); /* Compatible with ISAM */
if (!(flag & HA_STATUS_NO_LOCK))
{
mysql_mutex_lock(&share->intern_lock);
_ma_readinfo(info,F_RDLCK,0);
fast_ma_writeinfo(info);
mysql_mutex_unlock(&share->intern_lock);
}
if (flag & HA_STATUS_VARIABLE)
{
x->records = info->state->records;
x->deleted = share->state.state.del;
x->delete_length = share->state.state.empty;
x->data_file_length = share->state.state.data_file_length;
x->index_file_length= share->state.state.key_file_length;
x->keys = share->state.header.keys;
x->check_time = share->state.check_time;
x->mean_reclength = x->records ?
(ulong) ((x->data_file_length - x->delete_length) /x->records) :
(ulong) share->min_pack_length;
}
if (flag & HA_STATUS_ERRKEY)
{
x->errkey= info->errkey;
x->dup_key_pos= info->dup_key_pos;
}
if (flag & HA_STATUS_CONST)
{
x->reclength = share->base.reclength;
x->max_data_file_length=share->base.max_data_file_length;
x->max_index_file_length=info->s->base.max_key_file_length;
x->filenr = info->dfile.file;
x->options = share->options;
x->create_time=share->state.create_time;
x->reflength= maria_get_pointer_length(share->base.max_data_file_length,
maria_data_pointer_size);
x->record_offset= (info->s->data_file_type == STATIC_RECORD ?
share->base.pack_reclength: 0);
x->sortkey= -1; /* No clustering */
x->rec_per_key = share->state.rec_per_key_part;
x->key_map = share->state.key_map;
x->data_file_name = share->data_file_name.str;
x->index_file_name = share->index_file_name.str;
x->data_file_type = share->data_file_type;
}
if ((flag & HA_STATUS_TIME) && !my_fstat(info->dfile.file, &state, MYF(0)))
x->update_time=state.st_mtime;
else
x->update_time=0;
if (flag & HA_STATUS_AUTO)
{
x->auto_increment= share->state.auto_increment+1;
if (!x->auto_increment) /* This shouldn't happen */
x->auto_increment= ~(ulonglong) 0;
}
DBUG_RETURN(0);
}
/*
Write a message to the error log.
SYNOPSIS
_ma_report_error()
file_name Name of table file (e.g. index_file_name).
errcode Error number.
DESCRIPTION
This function supplies my_error() with a table name. Most error
messages need one. Since string arguments in error messages are limited
to 64 characters by convention, we ensure that in case of truncation,
that the end of the index file path is in the message. This contains
the most valuable information (the table name and the database name).
RETURN
void
*/
void _ma_report_error(int errcode, const LEX_STRING *name)
{
size_t length;
const char *file_name= name->str;
DBUG_ENTER("_ma_report_error");
DBUG_PRINT("enter",("errcode %d, table '%s'", errcode, file_name));
if ((length= name->length) > 64)
{
/* we first remove the directory */
size_t dir_length= dirname_length(file_name);
file_name+= dir_length;
if ((length-= dir_length) > 64)
{
/* still too long, chop start of table name */
file_name+= length - 64;
}
}
my_error(errcode, MYF(ME_NOREFRESH), file_name);
DBUG_VOID_RETURN;
}
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