#include "access/rmgr.h"
#include "access/xlogdefs.h"
#include "port/pg_crc32c.h"
#include "storage/block.h"
#include "storage/relfilenode.h"

Include dependency graph for xlogrecord.h:

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Go to the source code of this file.

Data Structures
struct	XLogRecord

struct	XLogRecordBlockHeader

struct	XLogRecordBlockImageHeader

struct	XLogRecordBlockCompressHeader

struct	XLogRecordDataHeaderShort

struct	XLogRecordDataHeaderLong

Macros
#define	SizeOfXLogRecord (offsetof(XLogRecord, xl_crc) + sizeof(pg_crc32c))

#define	XLR_INFO_MASK 0x0F

#define	XLR_RMGR_INFO_MASK 0xF0

#define	XLR_SPECIAL_REL_UPDATE 0x01

#define	XLR_CHECK_CONSISTENCY 0x02

#define	SizeOfXLogRecordBlockHeader (offsetof(XLogRecordBlockHeader, data_length) + sizeof(uint16))

#define	SizeOfXLogRecordBlockImageHeader (offsetof(XLogRecordBlockImageHeader, bimg_info) + sizeof(uint8))

#define	BKPIMAGE_HAS_HOLE 0x01 /* page image has "hole" */

#define	BKPIMAGE_APPLY

#define	BKPIMAGE_COMPRESS_PGLZ 0x04

#define	BKPIMAGE_COMPRESS_LZ4 0x08

#define	BKPIMAGE_COMPRESSED(info) ((info & (BKPIMAGE_COMPRESS_PGLZ \| BKPIMAGE_COMPRESS_LZ4)) != 0)

#define	SizeOfXLogRecordBlockCompressHeader sizeof(XLogRecordBlockCompressHeader)

#define	MaxSizeOfXLogRecordBlockHeader

#define	BKPBLOCK_FORK_MASK 0x0F

#define	BKPBLOCK_FLAG_MASK 0xF0

#define	BKPBLOCK_HAS_IMAGE 0x10 /* block data is an XLogRecordBlockImage */

#define	BKPBLOCK_HAS_DATA 0x20

#define	BKPBLOCK_WILL_INIT 0x40 /* redo will re-init the page */

#define	BKPBLOCK_SAME_REL 0x80 /* RelFileNode omitted, same as previous */

#define	SizeOfXLogRecordDataHeaderShort (sizeof(uint8) * 2)

#define	SizeOfXLogRecordDataHeaderLong (sizeof(uint8) + sizeof(uint32))

#define	XLR_MAX_BLOCK_ID 32

#define	XLR_BLOCK_ID_DATA_SHORT 255

#define	XLR_BLOCK_ID_DATA_LONG 254

#define	XLR_BLOCK_ID_ORIGIN 253

#define	XLR_BLOCK_ID_TOPLEVEL_XID 252

Typedefs
typedef struct XLogRecord	XLogRecord

typedef struct XLogRecordBlockHeader	XLogRecordBlockHeader

typedef struct XLogRecordBlockImageHeader	XLogRecordBlockImageHeader

typedef struct XLogRecordBlockCompressHeader	XLogRecordBlockCompressHeader

typedef struct XLogRecordDataHeaderShort	XLogRecordDataHeaderShort

typedef struct XLogRecordDataHeaderLong	XLogRecordDataHeaderLong

Macro Definition Documentation

◆ BKPBLOCK_FLAG_MASK

#define BKPBLOCK_FLAG_MASK 0xF0

Definition at line 183 of file xlogrecord.h.

◆ BKPBLOCK_FORK_MASK

#define BKPBLOCK_FORK_MASK 0x0F

Definition at line 182 of file xlogrecord.h.

Referenced by DecodeXLogRecord().

◆ BKPBLOCK_HAS_DATA

#define BKPBLOCK_HAS_DATA 0x20

Definition at line 185 of file xlogrecord.h.

Referenced by DecodeXLogRecord(), and XLogRecordAssemble().

◆ BKPBLOCK_HAS_IMAGE

#define BKPBLOCK_HAS_IMAGE 0x10 /* block data is an XLogRecordBlockImage */

Definition at line 184 of file xlogrecord.h.

Referenced by DecodeXLogRecord(), and XLogRecordAssemble().

◆ BKPBLOCK_SAME_REL

#define BKPBLOCK_SAME_REL 0x80 /* RelFileNode omitted, same as previous */

Definition at line 187 of file xlogrecord.h.

Referenced by DecodeXLogRecord(), and XLogRecordAssemble().

◆ BKPBLOCK_WILL_INIT

#define BKPBLOCK_WILL_INIT 0x40 /* redo will re-init the page */

Definition at line 186 of file xlogrecord.h.

Referenced by XLogReadBufferForRedoExtended(), and XLogRecordAssemble().

◆ BKPIMAGE_APPLY

#define BKPIMAGE_APPLY

Value:

0x02 /* page image should be restored

* during replay */

Definition at line 147 of file xlogrecord.h.

Referenced by DecodeXLogRecord(), and XLogRecordAssemble().

◆ BKPIMAGE_COMPRESS_LZ4

#define BKPIMAGE_COMPRESS_LZ4 0x08

Definition at line 151 of file xlogrecord.h.

Referenced by RestoreBlockImage(), XLogDumpDisplayRecord(), and XLogRecordAssemble().

◆ BKPIMAGE_COMPRESS_PGLZ

#define BKPIMAGE_COMPRESS_PGLZ 0x04

Definition at line 150 of file xlogrecord.h.

Referenced by RestoreBlockImage(), XLogDumpDisplayRecord(), and XLogRecordAssemble().

◆ BKPIMAGE_COMPRESSED

#define BKPIMAGE_COMPRESSED ( info ) ((info & (BKPIMAGE_COMPRESS_PGLZ | BKPIMAGE_COMPRESS_LZ4)) != 0)

Definition at line 152 of file xlogrecord.h.

Referenced by DecodeXLogRecord(), RestoreBlockImage(), and XLogDumpDisplayRecord().

◆ BKPIMAGE_HAS_HOLE

#define BKPIMAGE_HAS_HOLE 0x01 /* page image has "hole" */

Definition at line 146 of file xlogrecord.h.

Referenced by DecodeXLogRecord(), and XLogRecordAssemble().

◆ MaxSizeOfXLogRecordBlockHeader

#define MaxSizeOfXLogRecordBlockHeader

Value:

(SizeOfXLogRecordBlockHeader + \
     SizeOfXLogRecordBlockImageHeader + \
     SizeOfXLogRecordBlockCompressHeader + \
     sizeof(RelFileNode) + \
     sizeof(BlockNumber))