diff --git a/sql/sp_cache.cc b/sql/sp_cache.cc new file mode 100644 index 00000000000..1b8816ee0f4 --- /dev/null +++ b/sql/sp_cache.cc @@ -0,0 +1,53 @@ +/* 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 */ + +#ifdef __GNUC__ +#pragma implementation +#endif + +#include "mysql_priv.h" +#include "sp_cache.h" +#include "sp_head.h" + +static byte * +hash_get_key_for_sp_head(const byte *ptr, uint *plen, + my_bool first) +{ + return ((sp_head*)ptr)->name(plen); +} + +sp_cache::sp_cache() +{ + init(); +} + +sp_cache::~sp_cache() +{ + hash_free(&m_hashtable); +} + +void +sp_cache::init() +{ + hash_init(&m_hashtable, system_charset_info, 0, 0, 0, + hash_get_key_for_sp_head, 0, 0); +} + +void +sp_cache::cleanup() +{ + hash_free(&m_hashtable); +} diff --git a/sql/sp_cache.h b/sql/sp_cache.h new file mode 100644 index 00000000000..68a97839ed8 --- /dev/null +++ b/sql/sp_cache.h @@ -0,0 +1,65 @@ +/* -*- 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 __GNUC__ +#pragma interface /* gcc class implementation */ +#endif + +class sp_head; + +class sp_cache +{ +public: + + sp_cache(); + + ~sp_cache(); + + void + init(); + + void + cleanup(); + + inline void + insert(sp_head *sp) + { + hash_insert(&m_hashtable, (const byte *)sp); + } + + inline sp_head * + lookup(char *name, uint namelen) + { + return (sp_head *)hash_search(&m_hashtable, (const byte *)name, namelen); + } + + inline void + remove(sp_head *sp) + { + hash_delete(&m_hashtable, (byte *)sp); + } + +private: + + HASH m_hashtable; + +}; // class sp_cache + +#endif /* _SP_CACHE_H_ */