~drizzle-trunk/drizzle/development

1 by brian
clean slate
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/* Copyright (C) 2000-2001, 2004, 2006 MySQL 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; version 2 of the License.
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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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/*
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  deletes a table
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*/
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#include "fulltext.h"
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int mi_delete_table(const char *name)
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{
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  char from[FN_REFLEN];
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#ifdef USE_RAID
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  uint raid_type=0,raid_chunks=0;
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#endif
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  DBUG_ENTER("mi_delete_table");
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#ifdef EXTRA_DEBUG
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  check_table_is_closed(name,"delete");
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#endif
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#ifdef USE_RAID
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  {
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    MI_INFO *info;
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    /*
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      When built with RAID support, we need to determine if this table
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      makes use of the raid feature. If yes, we need to remove all raid
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      chunks. This is done with my_raid_delete(). Unfortunately it is
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      necessary to open the table just to check this. We use
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      'open_for_repair' to be able to open even a crashed table. If even
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      this open fails, we assume no raid configuration for this table
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      and try to remove the normal data file only. This may however
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      leave the raid chunks behind.
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    */
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    if (!(info= mi_open(name, O_RDONLY, HA_OPEN_FOR_REPAIR)))
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      raid_type= 0;
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    else
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    {
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      raid_type=   info->s->base.raid_type;
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      raid_chunks= info->s->base.raid_chunks;
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      mi_close(info);
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    }
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  }
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#ifdef EXTRA_DEBUG
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  check_table_is_closed(name,"delete");
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#endif
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#endif /* USE_RAID */
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  fn_format(from,name,"",MI_NAME_IEXT,MY_UNPACK_FILENAME|MY_APPEND_EXT);
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  if (my_delete_with_symlink(from, MYF(MY_WME)))
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    DBUG_RETURN(my_errno);
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  fn_format(from,name,"",MI_NAME_DEXT,MY_UNPACK_FILENAME|MY_APPEND_EXT);
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#ifdef USE_RAID
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  if (raid_type)
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    DBUG_RETURN(my_raid_delete(from, raid_chunks, MYF(MY_WME)) ? my_errno : 0);
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#endif
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  DBUG_RETURN(my_delete_with_symlink(from, MYF(MY_WME)) ? my_errno : 0);
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}