mirror of
https://github.com/MariaDB/server.git
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b323667ffc
* Don't activate prelocking mode for evaluating procedure arguments when it is not necessary.
* Code structure simplification and cleanup.
* Cleanup in .test files
mysql-test/r/sp-prelocking.result:
Prelocking-free SPs, post-review fixes:
Added comment, s/testdb/mysqltest/, fixed a wrong test (error wasnt reported because of known bug in mysqltestrun)
mysql-test/r/sp-security.result:
Don't drop the table we're not using.
mysql-test/r/sp.result:
Prelocking-free SPs, post-review fixes:
remove redundant "drop table if exists t3" statements
mysql-test/t/sp-prelocking.test:
Prelocking-free SPs, post-review fixes:
Added comment, s/testdb/mysqltest/, fixed a wrong test (error wasnt reported because of known bug in mysqltestrun)
mysql-test/t/sp-security.test:
Don't drop the table we're not using.
mysql-test/t/sp.test:
Prelocking-free SPs, post-review fixes:
remove redundant "drop table if exists t3" statements
sql/sp.cc:
New, better defined, sp_get_prelocking_info() function to get info about
statement prelocking options
sql/sp.h:
Prelocking-free SPs, post-review fixes: New, better defined, sp_get_prelocking_info()
function to get info about statement prelocking options
sql/sp_cache.h:
Prelocking-free SPs, post-review fixes: Amended the comments
sql/sp_head.cc:
Prelocking-free SPs, post-review fixes: Amend the comments, simplify the code that
attaches removes statement's prelocking tables.
sql/sql_base.cc:
Prelocking-free SPs, post-review fixes:
* Use a better defined sp_get_prelocking_info() function to get info about
statement prelocking options
* Don't activate prelocked mode for evaluation of SP arguments that use tables
but don't need prelocking.
sql/sql_class.cc:
Prelocking-free SPs, post-review fixes: Initialize THD members in the order they are declared.
118 lines
2.5 KiB
C++
118 lines
2.5 KiB
C++
/* -*- C++ -*- */
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/* Copyright (C) 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; either version 2 of the License, or
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(at your option) any later version.
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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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#ifndef _SP_CACHE_H_
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#define _SP_CACHE_H_
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#ifdef USE_PRAGMA_INTERFACE
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#pragma interface /* gcc class implementation */
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#endif
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/*
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Stored procedures/functions cache. This is used as follows:
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* Each thread has its own cache.
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* Each sp_head object is put into its thread cache after creation and is
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removed from there on its deletion.
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*/
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class sp_head;
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class sp_cache;
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/* Initialize the SP caching once at startup */
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void sp_cache_init();
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/* Clear the cache *cp and set *cp to NULL */
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void sp_cache_clear(sp_cache **cp);
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/* Insert an SP into cache. If 'cp' points to NULL, it's set to a new cache */
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void sp_cache_insert(sp_cache **cp, sp_head *sp);
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/* Lookup an SP in cache */
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sp_head *sp_cache_lookup(sp_cache **cp, sp_name *name);
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/*
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Remove an SP from cache, and also bump the Cversion number so all other
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caches are invalidated.
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Returns true if something was removed.
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*/
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bool sp_cache_remove(sp_cache **cp, sp_name *name);
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/* Invalidate all existing SP caches by bumping Cversion number. */
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void sp_cache_invalidate();
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/*
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*
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* The cache class. Don't use this directly, use the C API above
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*
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*/
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class sp_cache
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{
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public:
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ulong version;
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sp_cache();
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~sp_cache();
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void
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init();
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void
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cleanup();
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inline void
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insert(sp_head *sp)
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{
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my_hash_insert(&m_hashtable, (const byte *)sp);
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}
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inline sp_head *
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lookup(char *name, uint namelen)
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{
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return (sp_head *)hash_search(&m_hashtable, (const byte *)name, namelen);
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}
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inline bool
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remove(char *name, uint namelen)
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{
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sp_head *sp= lookup(name, namelen);
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if (sp)
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{
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hash_delete(&m_hashtable, (byte *)sp);
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return TRUE;
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}
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return FALSE;
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}
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inline void
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remove_all()
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{
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cleanup();
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init();
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}
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private:
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HASH m_hashtable;
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}; // class sp_cache
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#endif /* _SP_CACHE_H_ */
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