60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/*-------------------------------------------------------------------------
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*
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* storage_xlog.h
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* prototypes for XLog support for backend/catalog/storage.c
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*
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*
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* Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/catalog/storage_xlog.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef STORAGE_XLOG_H
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#define STORAGE_XLOG_H
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#include "access/xlogreader.h"
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#include "lib/stringinfo.h"
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#include "storage/block.h"
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#include "storage/relfilelocator.h"
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/*
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* Declarations for smgr-related XLOG records
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*
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* Note: we log file creation and truncation here, but logging of deletion
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* actions is handled by xact.c, because it is part of transaction commit.
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*/
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/* XLOG gives us high 4 bits */
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#define XLOG_SMGR_CREATE 0x10
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#define XLOG_SMGR_TRUNCATE 0x20
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typedef struct xl_smgr_create
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{
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RelFileLocator rlocator;
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ForkNumber forkNum;
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} xl_smgr_create;
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/* flags for xl_smgr_truncate */
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#define SMGR_TRUNCATE_HEAP 0x0001
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#define SMGR_TRUNCATE_VM 0x0002
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#define SMGR_TRUNCATE_FSM 0x0004
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#define SMGR_TRUNCATE_ALL \
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(SMGR_TRUNCATE_HEAP|SMGR_TRUNCATE_VM|SMGR_TRUNCATE_FSM)
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typedef struct xl_smgr_truncate
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{
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BlockNumber blkno;
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RelFileLocator rlocator;
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int flags;
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} xl_smgr_truncate;
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extern void log_smgrcreate(const RelFileLocator *rlocator, ForkNumber forkNum);
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extern void smgr_redo(XLogReaderState *record);
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extern void smgr_desc(StringInfo buf, XLogReaderState *record);
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extern const char *smgr_identify(uint8 info);
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#endif /* STORAGE_XLOG_H */
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