granicus.if.org Git - postgresql/blob - 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: pgsql/src/include/utils/inval.h,v 1.43 2008/06/19 00:46:06 alvherre Exp $
  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 (*CacheCallbackFunction) (Datum arg, Oid relid);
  22
  23
  24 extern void AcceptInvalidationMessages(void);
  25
  26 extern void AtStart_Inval(void);
  27
  28 extern void AtSubStart_Inval(void);
  29
  30 extern void AtEOXact_Inval(bool isCommit);
  31
  32 extern void AtEOSubXact_Inval(bool isCommit);
  33
  34 extern void AtPrepare_Inval(void);
  35
  36 extern void PostPrepare_Inval(void);
  37
  38 extern void CommandEndInvalidationMessages(void);
  39
  40 extern void BeginNonTransactionalInvalidation(void);
  41
  42 extern void EndNonTransactionalInvalidation(void);
  43
  44 extern void CacheInvalidateHeapTuple(Relation relation, HeapTuple tuple);
  45
  46 extern void CacheInvalidateRelcache(Relation relation);
  47
  48 extern void CacheInvalidateRelcacheByTuple(HeapTuple classTuple);
  49
  50 extern void CacheInvalidateRelcacheByRelid(Oid relid);
  51
  52 extern void CacheRegisterSyscacheCallback(int cacheid,
  53                                                           CacheCallbackFunction func,
  54                                                           Datum arg);
  55
  56 extern void CacheRegisterRelcacheCallback(CacheCallbackFunction func,
  57                                                           Datum arg);
  58
  59 extern void inval_twophase_postcommit(TransactionId xid, uint16 info,
  60                                                   void *recdata, uint32 len);
  61
  62 #endif   /* INVAL_H */