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