inval.h

Go to the documentation of this file.

/*-------------------------------------------------------------------------
 *
 * inval.h
 *    POSTGRES cache invalidation dispatcher definitions.
 *
 *
 * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/utils/inval.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef INVAL_H
#define INVAL_H
 
#include "access/htup.h"
#include "storage/relfilelocator.h"
#include "utils/relcache.h"
 
extern PGDLLIMPORT int debug_discard_caches;
 
typedef void (*SyscacheCallbackFunction) (Datum arg, int cacheid, uint32 hashvalue);
typedef void (*RelcacheCallbackFunction) (Datum arg, Oid relid);
 
 
extern void AcceptInvalidationMessages(void);
 
extern void AtEOXact_Inval(bool isCommit);
 
extern void AtEOSubXact_Inval(bool isCommit);
 
extern void PostPrepare_Inval(void);
 
extern void CommandEndInvalidationMessages(void);
 
extern void CacheInvalidateHeapTuple(Relation relation,
                                     HeapTuple tuple,
                                     HeapTuple newtuple);
 
extern void CacheInvalidateCatalog(Oid catalogId);
 
extern void CacheInvalidateRelcache(Relation relation);
 
extern void CacheInvalidateRelcacheAll(void);
 
extern void CacheInvalidateRelcacheByTuple(HeapTuple classTuple);
 
extern void CacheInvalidateRelcacheByRelid(Oid relid);
 
extern void CacheInvalidateSmgr(RelFileLocatorBackend rlocator);
 
extern void CacheInvalidateRelmap(Oid databaseId);
 
extern void CacheRegisterSyscacheCallback(int cacheid,
                                          SyscacheCallbackFunction func,
                                          Datum arg);
 
extern void CacheRegisterRelcacheCallback(RelcacheCallbackFunction func,
                                          Datum arg);
 
extern void CallSyscacheCallbacks(int cacheid, uint32 hashvalue);
 
extern void InvalidateSystemCaches(void);
extern void InvalidateSystemCachesExtended(bool debug_discard);
 
extern void LogLogicalInvalidations(void);
#endif                          /* INVAL_H */