src/include/utils/inval.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * inval.h
   4  *        POSTGRES cache invalidation dispatcher definitions.
   5  *
   6  *
   7  * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
   8  * Portions Copyright (c) 1994, Regents of the University of California
   9  *
  10  * $PostgreSQL$
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14 #ifndef INVAL_H
  15 #define INVAL_H
  16
  17 #include "access/htup.h"
  18 #include "utils/relcache.h"
  19
  20
  21 typedef void (*SyscacheCallbackFunction) (Datum arg, int cacheid, ItemPointer tuplePtr);
  22 typedef void (*RelcacheCallbackFunction) (Datum arg, Oid relid);
  23
  24
  25 extern void AcceptInvalidationMessages(void);
  26
  27 extern void AtStart_Inval(void);
  28
  29 extern void AtSubStart_Inval(void);
  30
  31 extern void AtEOXact_Inval(bool isCommit);
  32
  33 extern void AtEOSubXact_Inval(bool isCommit);
  34
  35 extern void AtPrepare_Inval(void);
  36
  37 extern void PostPrepare_Inval(void);
  38
  39 extern void CommandEndInvalidationMessages(void);
  40
  41 extern void BeginNonTransactionalInvalidation(void);
  42
  43 extern void EndNonTransactionalInvalidation(void);
  44
  45 extern void CacheInvalidateHeapTuple(Relation relation, HeapTuple tuple);
  46
  47 extern void CacheInvalidateRelcache(Relation relation);
  48
  49 extern void CacheInvalidateRelcacheByTuple(HeapTuple classTuple);
  50
  51 extern void CacheInvalidateRelcacheByRelid(Oid relid);
  52
  53 extern void CacheRegisterSyscacheCallback(int cacheid,
  54                                                           SyscacheCallbackFunction func,
  55                                                           Datum arg);
  56
  57 extern void CacheRegisterRelcacheCallback(RelcacheCallbackFunction func,
  58                                                           Datum arg);
  59
  60 extern void inval_twophase_postcommit(TransactionId xid, uint16 info,
  61                                                   void *recdata, uint32 len);
  62
  63 #endif   /* INVAL_H */