76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
#ifndef KEYCACHES_INCLUDED
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#define KEYCACHES_INCLUDED
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/* Copyright (c) 2002, 2013, 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 Foundation,
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51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
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#include "sql_list.h"
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#include <keycache.h>
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extern PSI_memory_key key_memory_NAMED_ILINK_name;
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extern "C"
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{
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typedef int (*process_key_cache_t) (const char *, KEY_CACHE *);
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}
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/**
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ilink (intrusive list element) with a name
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*/
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class NAMED_ILINK :public ilink<NAMED_ILINK>
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{
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public:
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const char *name;
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size_t name_length;
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uchar* data;
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NAMED_ILINK(I_List<NAMED_ILINK> *links, const char *name_arg,
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size_t name_length_arg, uchar* data_arg)
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:name_length(name_length_arg), data(data_arg)
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{
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name= my_strndup(key_memory_NAMED_ILINK_name,
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name_arg, name_length, MYF(MY_WME));
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links->push_back(this);
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}
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bool cmp(const char *name_cmp, size_t length)
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{
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return length == name_length && !memcmp(name, name_cmp, length);
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}
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~NAMED_ILINK()
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{
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my_free((void *) name);
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}
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};
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class NAMED_ILIST: public I_List<NAMED_ILINK>
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{
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public:
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void delete_elements(void (*free_element)(const char*, uchar*));
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};
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extern LEX_STRING default_key_cache_base;
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extern KEY_CACHE zero_key_cache;
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extern NAMED_ILIST key_caches;
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KEY_CACHE *create_key_cache(const char *name, size_t length);
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KEY_CACHE *get_key_cache(LEX_STRING *cache_name);
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KEY_CACHE *get_or_create_key_cache(const char *name, size_t length);
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void free_key_cache(const char *name, KEY_CACHE *key_cache);
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bool process_key_caches(process_key_cache_t func);
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#endif /* KEYCACHES_INCLUDED */
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