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62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
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/* Copyright (C) 2010 Monty Program 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; 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
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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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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/* Open handlers are stored here */
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class SQL_HANDLER {
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public:
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TABLE *table;
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List<Item> fields; /* Fields, set on open */
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THD *thd;
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LEX_STRING handler_name;
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LEX_STRING db;
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LEX_STRING table_name;
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MEM_ROOT mem_root;
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MYSQL_LOCK *lock;
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key_part_map keypart_map;
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int keyno; /* Used key */
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uint key_len;
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enum enum_ha_read_modes mode;
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/* This is only used when deleting many handler objects */
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SQL_HANDLER *next;
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Query_arena arena;
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char *base_data;
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SQL_HANDLER(THD *thd_arg) :
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thd(thd_arg), arena(&mem_root, Query_arena::INITIALIZED)
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{ init(); clear_alloc_root(&mem_root); base_data= 0; }
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void init() { keyno= -1; table= 0; lock= 0; }
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void reset();
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~SQL_HANDLER();
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};
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bool mysql_ha_open(THD *thd, TABLE_LIST *tables, SQL_HANDLER *reopen);
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bool mysql_ha_close(THD *thd, TABLE_LIST *tables);
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bool mysql_ha_read(THD *, TABLE_LIST *,enum enum_ha_read_modes,char *,
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List<Item> *,enum ha_rkey_function,Item *,ha_rows,ha_rows);
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void mysql_ha_flush(THD *thd);
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void mysql_ha_rm_tables(THD *thd, TABLE_LIST *tables, bool is_locked);
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void mysql_ha_cleanup(THD *thd);
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SQL_HANDLER *mysql_ha_read_prepare(THD *thd, TABLE_LIST *tables,
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enum enum_ha_read_modes mode, char *keyname,
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List<Item> *key_expr, Item *cond);
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