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afb4878703
In debug build, whenever MEMORY table instance gets closed it performs consistency check without protection. It may cause server crash if executed concurrently with DML. Moved consistency check to ha_heap::external_lock(F_UNLCK), so that it is protected by THR_LOCK.
45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
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/* close a heap-database */
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#include "heapdef.h"
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/* Close a database open by hp_open() */
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/* Data is normally not deallocated */
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int heap_close(HP_INFO *info)
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{
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int tmp;
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DBUG_ENTER("heap_close");
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mysql_mutex_lock(&THR_LOCK_heap);
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tmp= hp_close(info);
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mysql_mutex_unlock(&THR_LOCK_heap);
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DBUG_RETURN(tmp);
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}
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int hp_close(register HP_INFO *info)
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{
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int error=0;
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DBUG_ENTER("hp_close");
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info->s->changed=0;
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if (info->open_list.data)
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heap_open_list=list_delete(heap_open_list,&info->open_list);
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if (!--info->s->open_count && info->s->delete_on_close)
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hp_free(info->s); /* Table was deleted */
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my_free(info);
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DBUG_RETURN(error);
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}
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