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/*-------------------------------------------------------------------------
*
* relmapper.h
* Catalog-to-filenode mapping
*
*
* Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/utils/relmapper.h
*
*-------------------------------------------------------------------------
*/
#ifndef RELMAPPER_H
#define RELMAPPER_H
#include "access/xlogreader.h"
#include "lib/stringinfo.h"
/* ----------------
* relmap-related XLOG entries
* ----------------
*/
#define XLOG_RELMAP_UPDATE 0x00
typedef struct xl_relmap_update
{
Oid dbid; /* database ID, or 0 for shared map */
Oid tsid; /* database's tablespace, or pg_global */
int32 nbytes; /* size of relmap data */
char data[FLEXIBLE_ARRAY_MEMBER];
} xl_relmap_update;
#define MinSizeOfRelmapUpdate offsetof(xl_relmap_update, data)
extern Oid RelationMapOidToFilenode(Oid relationId, bool shared);
extern Oid RelationMapFilenodeToOid(Oid relationId, bool shared);
extern void RelationMapUpdateMap(Oid relationId, Oid fileNode, bool shared,
bool immediate);
extern void RelationMapRemoveMapping(Oid relationId);
extern void RelationMapInvalidate(bool shared);
extern void RelationMapInvalidateAll(void);
extern void AtCCI_RelationMap(void);
extern void AtEOXact_RelationMap(bool isCommit, bool isParallelWorker);
extern void AtPrepare_RelationMap(void);
extern void CheckPointRelationMap(void);
extern void RelationMapFinishBootstrap(void);
extern void RelationMapInitialize(void);
extern void RelationMapInitializePhase2(void);
extern void RelationMapInitializePhase3(void);
extern Size EstimateRelationMapSpace(void);
extern void SerializeRelationMap(Size maxSize, char *startAddress);
extern void RestoreRelationMap(char *startAddress);
extern void relmap_redo(XLogReaderState *record);
extern void relmap_desc(StringInfo buf, XLogReaderState *record);
extern const char *relmap_identify(uint8 info);
#endif /* RELMAPPER_H */
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