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/*****************************************************************************
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Copyright (C) 1996, 2010, Innobase Oy. All Rights Reserved.
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Copyright (c) 1996, 2009, Innobase Oy. All Rights Reserved.
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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mtr_t* mtr); /*!< in: mtr */
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/**********************************************************************//**
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Returns a new table, index, or space id. */
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Returns a new row, table, index, or tree id.
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dict_hdr_get_new_id(
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/*================*/
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table_id_t* table_id, /*!< out: table id
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(not assigned if NULL) */
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index_id_t* index_id, /*!< out: index id
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(not assigned if NULL) */
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ulint* space_id); /*!< out: space id
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(not assigned if NULL) */
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ulint type); /*!< in: DICT_HDR_ROW_ID, ... */
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/**********************************************************************//**
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Returns a new row id.
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@return the new id */
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dict_sys_get_new_row_id(void);
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/*=========================*/
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/**********************************************************************//**
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Reads a row id from a record or other 6-byte stored form.
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dict_sys_read_row_id(
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/*=================*/
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const byte* field); /*!< in: record field */
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byte* field); /*!< in: record field */
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/**********************************************************************//**
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Writes a row id to a record or other 6-byte stored form. */
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dict_sys_write_row_id(
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/*==================*/
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byte* field, /*!< in: record field */
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row_id_t row_id);/*!< in: row id */
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byte* field, /*!< in: record field */
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dulint row_id);/*!< in: row id */
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/*****************************************************************//**
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Initializes the data dictionary memory structures when the database is
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started. This function is also called when the data dictionary is created. */
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#define DICT_HDR_PAGE_NO FSP_DICT_HDR_PAGE_NO
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/* The ids for the basic system tables and their indexes */
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#define DICT_TABLES_ID 1
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#define DICT_COLUMNS_ID 2
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#define DICT_INDEXES_ID 3
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#define DICT_FIELDS_ID 4
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#define DICT_TABLES_ID ut_dulint_create(0, 1)
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#define DICT_COLUMNS_ID ut_dulint_create(0, 2)
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#define DICT_INDEXES_ID ut_dulint_create(0, 3)
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#define DICT_FIELDS_ID ut_dulint_create(0, 4)
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/* The following is a secondary index on SYS_TABLES */
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#define DICT_TABLE_IDS_ID 5
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#define DICT_TABLE_IDS_ID ut_dulint_create(0, 5)
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#define DICT_HDR_FIRST_ID 10 /* the ids for tables etc. start
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from this number, except for basic
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indexes; ibuf tables and indexes are
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assigned as the id the number
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DICT_IBUF_ID_MIN plus the space id */
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#define DICT_IBUF_ID_MIN 0xFFFFFFFF00000000ULL
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#define DICT_IBUF_ID_MIN ut_dulint_create(0xFFFFFFFFUL, 0)
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/* The offset of the dictionary header on the page */
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#define DICT_HDR FSEG_PAGE_DATA
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#define DICT_HDR_ROW_ID 0 /* The latest assigned row id */
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#define DICT_HDR_TABLE_ID 8 /* The latest assigned table id */
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#define DICT_HDR_INDEX_ID 16 /* The latest assigned index id */
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#define DICT_HDR_MAX_SPACE_ID 24 /* The latest assigned space id, or 0*/
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#define DICT_HDR_MIX_ID_LOW 28 /* Obsolete,always DICT_HDR_FIRST_ID */
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#define DICT_HDR_MIX_ID 24 /* Obsolete, always 0. */
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#define DICT_HDR_TABLES 32 /* Root of the table index tree */
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#define DICT_HDR_TABLE_IDS 36 /* Root of the table index tree */
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#define DICT_HDR_COLUMNS 40 /* Root of the column index tree */
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#define DICT_SYS_INDEXES_PAGE_NO_FIELD 8
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#define DICT_SYS_INDEXES_SPACE_NO_FIELD 7
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#define DICT_SYS_INDEXES_TYPE_FIELD 6
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#define DICT_SYS_INDEXES_NAME_FIELD 4
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/* When a row id which is zero modulo this number (which must be a power of
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two) is assigned, the field DICT_HDR_ROW_ID on the dictionary header page is