Eneboo - Documentación para desarrolladores: Fichero Fuente src/libpq/include/utils/inval.h

Eneboo - Documentación para desarrolladores
00001 /*-------------------------------------------------------------------------
00002  *
00003  * inval.h
00004  *        POSTGRES cache invalidation dispatcher definitions.
00005  *
00006  *
00007  * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
00008  * Portions Copyright (c) 1994, Regents of the University of California
00009  *
00010  * $PostgreSQL: pgsql/src/include/utils/inval.h,v 1.37 2005/10/15 02:49:46 momjian Exp $
00011  *
00012  *-------------------------------------------------------------------------
00013  */
00014 #ifndef INVAL_H
00015 #define INVAL_H
00016 
00017 #include "access/htup.h"
00018 
00019 
00020 typedef void (*CacheCallbackFunction) (Datum arg, Oid relid);
00021 
00022 
00023 extern void AcceptInvalidationMessages(void);
00024 
00025 extern void AtStart_Inval(void);
00026 
00027 extern void AtSubStart_Inval(void);
00028 
00029 extern void AtEOXact_Inval(bool isCommit);
00030 
00031 extern void AtEOSubXact_Inval(bool isCommit);
00032 
00033 extern void AtPrepare_Inval(void);
00034 
00035 extern void PostPrepare_Inval(void);
00036 
00037 extern void CommandEndInvalidationMessages(void);
00038 
00039 extern void CacheInvalidateHeapTuple(Relation relation, HeapTuple tuple);
00040 
00041 extern void CacheInvalidateRelcache(Relation relation);
00042 
00043 extern void CacheInvalidateRelcacheByTuple(HeapTuple classTuple);
00044 
00045 extern void CacheInvalidateRelcacheByRelid(Oid relid);
00046 
00047 extern void CacheRegisterSyscacheCallback(int cacheid,
00048                                                           CacheCallbackFunction func,
00049                                                           Datum arg);
00050 
00051 extern void CacheRegisterRelcacheCallback(CacheCallbackFunction func,
00052                                                           Datum arg);
00053 
00054 extern void inval_twophase_postcommit(TransactionId xid, uint16 info,
00055                                                   void *recdata, uint32 len);
00056 
00057 #endif   /* INVAL_H */