greenplumn inval 源码
greenplumn inval 代码
文件路径：/src/include/utils/inval.h
/*-------------------------------------------------------------------------
*
* inval.h
* POSTGRES cache invalidation dispatcher definitions.
*
*
* Portions Copyright (c) 1996-2019, 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/relfilenode.h"
#include "utils/relcache.h"
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(RelFileNodeBackend rnode);
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);
#endif /* INVAL_H */
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