1 /*------------------------------------------------------------------------- 2 * 3 * relmapper.h 4 * Catalog-to-filenode mapping 5 * 6 * 7 * Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group 8 * Portions Copyright (c) 1994, Regents of the University of California 9 * 10 * src/include/utils/relmapper.h 11 * 12 *------------------------------------------------------------------------- 13 */ 14 #ifndef RELMAPPER_H 15 #define RELMAPPER_H 16 17 #include "access/xlogreader.h" 18 #include "lib/stringinfo.h" 19 20 /* ---------------- 21 * relmap-related XLOG entries 22 * ---------------- 23 */ 24 25 #define XLOG_RELMAP_UPDATE 0x00 26 27 typedef struct xl_relmap_update 28 { 29 Oid dbid; /* database ID, or 0 for shared map */ 30 Oid tsid; /* database's tablespace, or pg_global */ 31 int32 nbytes; /* size of relmap data */ 32 char data[FLEXIBLE_ARRAY_MEMBER]; 33 } xl_relmap_update; 34 35 #define MinSizeOfRelmapUpdate offsetof(xl_relmap_update, data) 36 37 38 extern Oid RelationMapOidToFilenode(Oid relationId, bool shared); 39 40 extern Oid RelationMapFilenodeToOid(Oid relationId, bool shared); 41 42 extern void RelationMapUpdateMap(Oid relationId, Oid fileNode, bool shared, 43 bool immediate); 44 45 extern void RelationMapRemoveMapping(Oid relationId); 46 47 extern void RelationMapInvalidate(bool shared); 48 extern void RelationMapInvalidateAll(void); 49 50 extern void AtCCI_RelationMap(void); 51 extern void AtEOXact_RelationMap(bool isCommit); 52 extern void AtPrepare_RelationMap(void); 53 54 extern void CheckPointRelationMap(void); 55 56 extern void RelationMapFinishBootstrap(void); 57 58 extern void RelationMapInitialize(void); 59 extern void RelationMapInitializePhase2(void); 60 extern void RelationMapInitializePhase3(void); 61 62 extern void relmap_redo(XLogReaderState *record); 63 extern void relmap_desc(StringInfo buf, XLogReaderState *record); 64 extern const char *relmap_identify(uint8 info); 65 66 #endif /* RELMAPPER_H */ 67