fsp0types.h

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/******************************************************
@file include/fsp0types.h
File space management types

Created May 26, 2009 Vasil Dimov
*******************************************************/

#ifndef fsp0types_h
#define fsp0types_h

#include "univ.i"

#include "fil0fil.h" /* for FIL_PAGE_DATA */

/* @{ */
#define FSP_UP          ((byte)111)     
#define FSP_DOWN        ((byte)112)     
#define FSP_NO_DIR      ((byte)113)     
/* @} */

#define FSP_EXTENT_SIZE         (1048576U / UNIV_PAGE_SIZE)

#define FSP_EXTENT_SIZE_MAX     (1048576 / UNIV_PAGE_SIZE_MAX)

#define FSP_EXTENT_SIZE_MIN     (1048576 / UNIV_PAGE_SIZE_MIN)

#define FSEG_PAGE_DATA          FIL_PAGE_DATA

/* @{ */
typedef byte    fseg_header_t;

#define FSEG_HDR_SPACE          0       
#define FSEG_HDR_PAGE_NO        4       
#define FSEG_HDR_OFFSET         8       
#define FSEG_HEADER_SIZE        10      
/* @} */

#define FSP_NORMAL      1000000
#define FSP_UNDO        2000000
#define FSP_CLEANING    3000000
/* @} */

/* Number of pages described in a single descriptor page: currently each page
description takes less than 1 byte; a descriptor page is repeated every
this many file pages */
/* #define XDES_DESCRIBED_PER_PAGE              UNIV_PAGE_SIZE */
/* This has been replaced with either UNIV_PAGE_SIZE or page_zip->size. */

/* @{ */
/*--------------------------------------*/
#define FSP_XDES_OFFSET                 0       /* !< extent descriptor */
#define FSP_IBUF_BITMAP_OFFSET          1       /* !< insert buffer bitmap */
                                /* The ibuf bitmap pages are the ones whose
                                page number is the number above plus a
                                multiple of XDES_DESCRIBED_PER_PAGE */

#define FSP_FIRST_INODE_PAGE_NO         2       
                                /* The following pages exist
                                in the system tablespace (space 0). */
#define FSP_IBUF_HEADER_PAGE_NO         3       
#define FSP_IBUF_TREE_ROOT_PAGE_NO      4       
                                /* The ibuf tree root page number in
                                tablespace 0; its fseg inode is on the page
                                number FSP_FIRST_INODE_PAGE_NO */
#define FSP_TRX_SYS_PAGE_NO             5       
#define FSP_FIRST_RSEG_PAGE_NO          6       
#define FSP_DICT_HDR_PAGE_NO            7       
/*--------------------------------------*/
/* @} */

#endif /* fsp0types_h */