mirror of
https://github.com/MariaDB/server.git
synced 2025-01-17 04:22:27 +01:00
6b9ec78be0
mysql-test/r/sp-threads.result: Testcase for BUG#12228 mysql-test/t/sp-threads.test: Testcase for BUG#12228 sql/sp_cache.cc: BUG#12228: Post-review fixes: small code cleanup sql/sp_cache.h: BUG#12228: Post-review fixes: fixed the comment sql/sql_parse.cc: BUG#12228: Post-review fixes: in mysql_parse, flush obsolete SPs from the caches only if the query hasn't been handled by the query cache. sql/sql_prepare.cc: BUG#12228: Post-review fixes: in mysql_stmt_prepare/execute, flush SP caches "closer to the execution"
63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
/* -*- C++ -*- */
|
|
/* Copyright (C) 2002 MySQL 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 */
|
|
|
|
#ifndef _SP_CACHE_H_
|
|
#define _SP_CACHE_H_
|
|
|
|
#ifdef USE_PRAGMA_INTERFACE
|
|
#pragma interface /* gcc class implementation */
|
|
#endif
|
|
|
|
/*
|
|
Stored procedures/functions cache. This is used as follows:
|
|
* Each thread has its own cache.
|
|
* Each sp_head object is put into its thread cache before it is used, and
|
|
then remains in the cache until deleted.
|
|
*/
|
|
|
|
class sp_head;
|
|
class sp_cache;
|
|
|
|
/*
|
|
Cache usage scenarios:
|
|
1. Application-wide init:
|
|
sp_cache_init();
|
|
|
|
2. SP execution in thread:
|
|
2.1 While holding sp_head* pointers:
|
|
|
|
// look up a routine in the cache (no checks if it is up to date or not)
|
|
sp_cache_lookup();
|
|
|
|
sp_cache_insert();
|
|
sp_cache_invalidate();
|
|
|
|
2.2 When not holding any sp_head* pointers:
|
|
sp_cache_flush_obsolete();
|
|
|
|
3. Before thread exit:
|
|
sp_cache_clear();
|
|
*/
|
|
|
|
void sp_cache_init();
|
|
void sp_cache_clear(sp_cache **cp);
|
|
void sp_cache_insert(sp_cache **cp, sp_head *sp);
|
|
sp_head *sp_cache_lookup(sp_cache **cp, sp_name *name);
|
|
void sp_cache_invalidate();
|
|
void sp_cache_flush_obsolete(sp_cache **cp);
|
|
|
|
#endif /* _SP_CACHE_H_ */
|