1 files changed, 162 insertions, 0 deletions
diff --git a/storage/xtradb/include/dict0boot.h b/storage/xtradb/include/dict0boot.h
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+++ b/storage/xtradb/include/dict0boot.h
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+/*****************************************************************************
+
+Copyright (c) 1996, 2010, Innobase Oy. All Rights Reserved.
+
+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., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA
+
+*****************************************************************************/
+
+/**************************************************//**
+@file include/dict0boot.h
+Data dictionary creation and booting
+
+Created 4/18/1996 Heikki Tuuri
+*******************************************************/
+
+#ifndef dict0boot_h
+#define dict0boot_h
+
+#include "univ.i"
+
+#include "mtr0mtr.h"
+#include "mtr0log.h"
+#include "ut0byte.h"
+#include "buf0buf.h"
+#include "fsp0fsp.h"
+#include "dict0dict.h"
+
+typedef	byte	dict_hdr_t;
+
+/**********************************************************************//**
+Gets a pointer to the dictionary header and x-latches its page.
+@return	pointer to the dictionary header, page x-latched */
+UNIV_INTERN
+dict_hdr_t*
+dict_hdr_get(
+/*=========*/
+	mtr_t*	mtr);	/*!< in: mtr */
+/**********************************************************************//**
+Returns a new table, index, or space id. */
+UNIV_INTERN
+void
+dict_hdr_get_new_id(
+/*================*/
+	dulint*	table_id,	/*!< out: table id (not assigned if NULL) */
+	dulint*	index_id,	/*!< out: index id (not assigned if NULL) */
+	ulint*	space_id);	/*!< out: space id (not assigned if NULL) */
+/**********************************************************************//**
+Returns a new row id.
+@return	the new id */
+UNIV_INLINE
+dulint
+dict_sys_get_new_row_id(void);
+/*=========================*/
+/**********************************************************************//**
+Reads a row id from a record or other 6-byte stored form.
+@return	row id */
+UNIV_INLINE
+dulint
+dict_sys_read_row_id(
+/*=================*/
+	byte*	field);	/*!< in: record field */
+/**********************************************************************//**
+Writes a row id to a record or other 6-byte stored form. */
+UNIV_INLINE
+void
+dict_sys_write_row_id(
+/*==================*/
+	byte*	field,	/*!< in: record field */
+	dulint	row_id);/*!< in: row id */
+/*****************************************************************//**
+Initializes the data dictionary memory structures when the database is
+started. This function is also called when the data dictionary is created. */
+UNIV_INTERN
+void
+dict_boot(void);
+/*===========*/
+/*****************************************************************//**
+Creates and initializes the data dictionary at the database creation. */
+UNIV_INTERN
+void
+dict_create(void);
+/*=============*/
+
+
+/* Space id and page no where the dictionary header resides */
+#define	DICT_HDR_SPACE		0	/* the SYSTEM tablespace */
+#define	DICT_HDR_PAGE_NO	FSP_DICT_HDR_PAGE_NO
+
+/* The ids for the basic system tables and their indexes */
+#define DICT_TABLES_ID		ut_dulint_create(0, 1)
+#define DICT_COLUMNS_ID		ut_dulint_create(0, 2)
+#define DICT_INDEXES_ID		ut_dulint_create(0, 3)
+#define DICT_FIELDS_ID		ut_dulint_create(0, 4)
+#define DICT_STATS_ID		ut_dulint_create(0, 6)
+/* The following is a secondary index on SYS_TABLES */
+#define DICT_TABLE_IDS_ID	ut_dulint_create(0, 5)
+
+#define	DICT_HDR_FIRST_ID	10	/* the ids for tables etc. start
+					from this number, except for basic
+					system tables and their above defined
+					indexes; ibuf tables and indexes are
+					assigned as the id the number
+					DICT_IBUF_ID_MIN plus the space id */
+#define DICT_IBUF_ID_MIN	ut_dulint_create(0xFFFFFFFFUL, 0)
+
+/* The offset of the dictionary header on the page */
+#define	DICT_HDR		FSEG_PAGE_DATA
+
+/*-------------------------------------------------------------*/
+/* Dictionary header offsets */
+#define DICT_HDR_ROW_ID		0	/* The latest assigned row id */
+#define	DICT_HDR_TABLE_ID	8	/* The latest assigned table id */
+#define	DICT_HDR_INDEX_ID	16	/* The latest assigned index id */
+#define DICT_HDR_MAX_SPACE_ID	24	/* The latest assigned space id, or 0*/
+#define	DICT_HDR_MIX_ID_LOW	28	/* Obsolete,always DICT_HDR_FIRST_ID */
+#define	DICT_HDR_TABLES		32	/* Root of the table index tree */
+#define	DICT_HDR_TABLE_IDS	36	/* Root of the table index tree */
+#define	DICT_HDR_COLUMNS	40	/* Root of the column index tree */
+#define	DICT_HDR_INDEXES	44	/* Root of the index index tree */
+#define	DICT_HDR_FIELDS		48	/* Root of the index field
+					index tree */
+#define	DICT_HDR_STATS		52	/* Root of the stats tree */
+
+#define DICT_HDR_FSEG_HEADER	56	/* Segment header for the tablespace
+					segment into which the dictionary
+					header is created */
+
+#define	DICT_HDR_XTRADB_MARK	256	/* Flag to distinguish expansion of XtraDB */
+/*-------------------------------------------------------------*/
+
+/* The field number of the page number field in the sys_indexes table
+clustered index */
+#define DICT_SYS_INDEXES_PAGE_NO_FIELD	 8
+#define DICT_SYS_INDEXES_SPACE_NO_FIELD	 7
+#define DICT_SYS_INDEXES_TYPE_FIELD	 6
+#define DICT_SYS_INDEXES_NAME_FIELD	 4
+
+#define DICT_SYS_STATS_DIFF_VALS_FIELD	 4
+#define DICT_SYS_STATS_NON_NULL_VALS_FIELD	5
+
+/* When a row id which is zero modulo this number (which must be a power of
+two) is assigned, the field DICT_HDR_ROW_ID on the dictionary header page is
+updated */
+#define DICT_HDR_ROW_ID_WRITE_MARGIN	256
+
+#define DICT_HDR_XTRADB_FLAG		ut_dulint_create(0x58545241UL,0x44425F31UL)	/* "XTRADB_1" */
+
+#ifndef UNIV_NONINL
+#include "dict0boot.ic"
+#endif
+
+#endif