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/*-------------------------------------------------------------------------
*
* storage_xlog.h
* prototypes for XLog support for backend/catalog/storage.c
*
*
* Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/catalog/storage_xlog.h
*
*-------------------------------------------------------------------------
*/
#ifndef STORAGE_XLOG_H
#define STORAGE_XLOG_H
#include "access/xlogreader.h"
#include "lib/stringinfo.h"
#include "storage/block.h"
#include "storage/relfilelocator.h"
/*
* Declarations for smgr-related XLOG records
*
* Note: we log file creation and truncation here, but logging of deletion
* actions is handled by xact.c, because it is part of transaction commit.
*/
/* XLOG gives us high 4 bits */
#define XLOG_SMGR_CREATE 0x10
#define XLOG_SMGR_TRUNCATE 0x20
typedef struct xl_smgr_create
{
RelFileLocator rlocator;
ForkNumber forkNum;
} xl_smgr_create;
/* flags for xl_smgr_truncate */
#define SMGR_TRUNCATE_HEAP 0x0001
#define SMGR_TRUNCATE_VM 0x0002
#define SMGR_TRUNCATE_FSM 0x0004
#define SMGR_TRUNCATE_ALL \
(SMGR_TRUNCATE_HEAP|SMGR_TRUNCATE_VM|SMGR_TRUNCATE_FSM)
typedef struct xl_smgr_truncate
{
BlockNumber blkno;
RelFileLocator rlocator;
int flags;
} xl_smgr_truncate;
extern void log_smgrcreate(const RelFileLocator *rlocator, ForkNumber forkNum);
extern void smgr_redo(XLogReaderState *record);
extern void smgr_desc(StringInfo buf, XLogReaderState *record);
extern const char *smgr_identify(uint8 info);
#endif /* STORAGE_XLOG_H */