hp_panic.c
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:2k
- /* Copyright (C) 2000 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; either version 2 of the License, or
- (at your option) any later version.
- 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 */
- #include "heapdef.h"
- /* if flag == HA_PANIC_CLOSE then all files are removed for more
- memory */
- int heap_panic(enum ha_panic_function flag)
- {
- LIST *element,*next_open;
- DBUG_ENTER("heap_panic");
- pthread_mutex_lock(&THR_LOCK_heap);
- for (element=heap_open_list ; element ; element=next_open)
- {
- HP_INFO *info=(HP_INFO*) element->data;
- next_open=element->next; /* Save if close */
- switch (flag) {
- case HA_PANIC_CLOSE:
- hp_close(info);
- break;
- default:
- break;
- }
- }
- for (element=heap_share_list ; element ; element=next_open)
- {
- HP_SHARE *share=(HP_SHARE*) element->data;
- next_open=element->next; /* Save if close */
- switch (flag) {
- case HA_PANIC_CLOSE:
- {
- if (!share->open_count)
- hp_free(share);
- break;
- }
- default:
- break;
- }
- }
- pthread_mutex_unlock(&THR_LOCK_heap);
- DBUG_RETURN(0);
- } /* heap_panic */