diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 18:07:14 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 18:07:14 +0000 |
commit | a175314c3e5827eb193872241446f2f8f5c9d33c (patch) | |
tree | cd3d60ca99ae00829c52a6ca79150a5b6e62528b /sql/sql_handler.h | |
parent | Initial commit. (diff) | |
download | mariadb-10.5-9e4947182e0b875da38088fdd168e775f473b8ad.tar.xz mariadb-10.5-9e4947182e0b875da38088fdd168e775f473b8ad.zip |
Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sql/sql_handler.h')
-rw-r--r-- | sql/sql_handler.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/sql/sql_handler.h b/sql/sql_handler.h new file mode 100644 index 00000000..4ac0d09e --- /dev/null +++ b/sql/sql_handler.h @@ -0,0 +1,86 @@ +#ifndef SQL_HANDLER_INCLUDED +#define SQL_HANDLER_INCLUDED +/* Copyright (c) 2006, 2015, Oracle and/or its affiliates. + Copyright (C) 2010, 2015, MariaDB + + 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; version 2 of the License. + + 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */ + +#ifdef USE_PRAGMA_INTERFACE +#pragma interface /* gcc class implementation */ +#endif + +#include "sql_class.h" /* enum_ha_read_mode */ +#include "my_base.h" /* ha_rkey_function, ha_rows */ +#include "sql_list.h" /* List */ + +/* Open handlers are stored here */ + +class SQL_HANDLER { +public: + TABLE *table; + List<Item> fields; /* Fields, set on open */ + THD *thd; + LEX_CSTRING handler_name; + LEX_CSTRING db; + LEX_CSTRING table_name; + MEM_ROOT mem_root; + MYSQL_LOCK *lock; + MDL_request mdl_request; + + key_part_map keypart_map; + int keyno; /* Used key */ + uint key_len; + enum enum_ha_read_modes mode; + + /* This is only used when deleting many handler objects */ + SQL_HANDLER *next; + + Query_arena arena; + char *base_data; + SQL_HANDLER(THD *thd_arg) : + thd(thd_arg), arena(&mem_root, Query_arena::STMT_INITIALIZED) + { init(); clear_alloc_root(&mem_root); base_data= 0; } + void init() + { + keyno= -1; + table= 0; + lock= 0; + mdl_request.ticket= 0; + } + void reset(); + + ~SQL_HANDLER(); +}; + +class THD; +struct TABLE_LIST; + +bool mysql_ha_open(THD *thd, TABLE_LIST *tables, SQL_HANDLER *reopen); +bool mysql_ha_close(THD *thd, TABLE_LIST *tables); +bool mysql_ha_read(THD *, TABLE_LIST *,enum enum_ha_read_modes, const char *, + List<Item> *,enum ha_rkey_function,Item *,ha_rows,ha_rows); +void mysql_ha_flush(THD *thd); +void mysql_ha_flush_tables(THD *thd, TABLE_LIST *all_tables); +void mysql_ha_rm_tables(THD *thd, TABLE_LIST *tables); +void mysql_ha_cleanup_no_free(THD *thd); +void mysql_ha_cleanup(THD *thd); +void mysql_ha_set_explicit_lock_duration(THD *thd); +void mysql_ha_rm_temporary_tables(THD *thd); + +SQL_HANDLER *mysql_ha_read_prepare(THD *thd, TABLE_LIST *tables, + enum enum_ha_read_modes mode, + const char *keyname, + List<Item> *key_expr, enum ha_rkey_function ha_rkey_mode, + Item *cond); +#endif |