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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 */
/* Return useful base information for an open table */
#include "maria_def.h"
#ifdef _WIN32
#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 MY_MIN(MARIA_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");
DBUG_PRINT("info", ("records: %lld", info->state->records));
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)
{
/* If table is locked, give versioned number otherwise last commited */
if (info->lock_type == F_UNLCK)
x->records = share->state.state.records;
else
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 user or the error log.
SYNOPSIS
_ma_report_error()
file_name Name of table file (e.g. index_file_name).
errcode Error number.
flags Flags to my_error
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, myf flags)
{
size_t length;
const char *file_name= name->str;
DBUG_ENTER("_ma_report_error");
DBUG_PRINT("enter",("error: %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_printf_error(errcode, "Got error '%M' for '%s'",
flags, (int) errcode, file_name);
DBUG_VOID_RETURN;
}
/**
If standalone report all errors to the user
If run trough the Aria handler, only report first error to the user
to not spam him
@param info Aria Handler
@param error Error code
@apram write_to_log If set to 1, print the error to the log. This is only set
when a table was found to be crashed the first time
*/
void _ma_print_error(MARIA_HA *info, int error, my_bool write_to_log)
{
DBUG_ENTER("_ma_print_error");
DBUG_PRINT("error", ("error: %d log: %d", error, write_to_log));
if (!info->error_count++ || !maria_in_ha_maria || write_to_log)
{
MARIA_SHARE *share= info->s;
_ma_report_error(error,
(share->index_file_name.length ?
&share->index_file_name :
&share->unique_file_name),
MYF(write_to_log ? ME_ERROR_LOG : 0));
}
DBUG_VOID_RETURN;
}
/*
Handle a fatal error
- Mark the table as crashed
- Print an error message, if we had not issued an error message before
that the table had been crashed.
- set my_errno to error
- If 'maria_assert_if_crashed_table is set, then assert.
*/
void _ma_set_fatal_error(MARIA_HA *info, int error)
{
MARIA_SHARE *share= info->s;
_ma_print_error(info, error,
(share->state.changed & STATE_CRASHED_PRINTED) == 0);
maria_mark_crashed_share(share);
share->state.changed|= STATE_CRASHED_PRINTED;
my_errno= error;
DBUG_ASSERT(!maria_assert_if_crashed_table);
}
/*
Similar to the above, but only used from maria_open() where we don't have
an active handler object. Here we don't set a fatal error as we may
still want to do an automatic repair on the table
*/
void _ma_set_fatal_error_with_share(MARIA_SHARE *share, int error)
{
DBUG_PRINT("error", ("error: %d", error));
if (!(share->state.changed & STATE_CRASHED_PRINTED))
{
_ma_report_error(error,
(share->index_file_name.length ?
&share->index_file_name :
&share->unique_file_name),
MYF(ME_WARNING | ME_ERROR_LOG));
}
maria_mark_crashed_share(share);
share->state.changed|= STATE_CRASHED_PRINTED;
DBUG_ASSERT(!maria_assert_if_crashed_table);
}
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