~drizzle-trunk/drizzle/development

1 by brian
clean slate
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/* Copyright (C) 2000-2002 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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#include "heapdef.h"
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	/* if flag == HA_PANIC_CLOSE then all files are removed for more
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	   memory */
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int hp_panic(enum ha_panic_function flag)
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{
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  LIST *element,*next_open;
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  DBUG_ENTER("hp_panic");
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  pthread_mutex_lock(&THR_LOCK_heap);
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  for (element=heap_open_list ; element ; element=next_open)
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  {
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    HP_INFO *info=(HP_INFO*) element->data;
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    next_open=element->next;	/* Save if close */
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    switch (flag) {
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    case HA_PANIC_CLOSE:
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      hp_close(info);
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      break;
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    default:
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      break;
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    }
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  }
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  for (element=heap_share_list ; element ; element=next_open)
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  {
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    HP_SHARE *share=(HP_SHARE*) element->data;
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    next_open=element->next;	/* Save if close */
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    switch (flag) {
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    case HA_PANIC_CLOSE:
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    {
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      if (!share->open_count)
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	hp_free(share);
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      break;
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    }
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    default:
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      break;
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    }
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  }
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  pthread_mutex_unlock(&THR_LOCK_heap);
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  DBUG_RETURN(0);
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} /* hp_panic */