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+/******************************************************
+Data dictionary creation and booting
+
+(c) 1996 Innobase Oy
+
+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. */
+
+dict_hdr_t*
+dict_hdr_get(
+/*=========*/
+ /* out: pointer to the dictionary header,
+ page x-latched */
+ mtr_t* mtr); /* in: mtr */
+/**************************************************************************
+Returns a new row, table, index, or tree id. */
+
+dulint
+dict_hdr_get_new_id(
+/*================*/
+ /* out: the new id */
+ ulint type); /* in: DICT_HDR_ROW_ID, ... */
+/**************************************************************************
+Returns a new row id. */
+UNIV_INLINE
+dulint
+dict_sys_get_new_row_id(void);
+/*=========================*/
+ /* out: the new id */
+/**************************************************************************
+Reads a row id from a record or other 6-byte stored form. */
+UNIV_INLINE
+dulint
+dict_sys_read_row_id(
+/*=================*/
+ /* out: 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. */
+
+void
+dict_boot(void);
+/*===========*/
+/*********************************************************************
+Creates and initializes the data dictionary at the database creation. */
+
+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)
+/* 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_MIX_ID 24 /* The latest assigned mix 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_FSEG_HEADER 56 /* Segment header for the tablespace
+ segment into which the dictionary
+ header is created */
+/*-------------------------------------------------------------*/
+
+/* 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
+
+/* 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
+
+#ifndef UNIV_NONINL
+#include "dict0boot.ic"
+#endif
+
+#endif