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/*-------------------------------------------------------------------------
*
* sinval.h--
* POSTGRES shared cache invalidation communication definitions.
*
*
* Copyright (c) 1994, Regents of the University of California
*
* $Id: sinval.h,v 1.1 1996/08/28 01:58:28 scrappy Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef SINVAL_H
#define SINVAL_H
#include "c.h"
#include "storage/spin.h"
#include "storage/ipc.h"
#include "storage/itemptr.h"
#include "storage/backendid.h"
extern SPINLOCK SInvalLock;
extern void CreateSharedInvalidationState(IPCKey key);
extern void AttachSharedInvalidationState(IPCKey key);
extern void InitSharedInvalidationState();
extern void RegisterSharedInvalid(int cacheId, Index hashIndex,
ItemPointer pointer);
extern void InvalidateSharedInvalid(void (*invalFunction)(),
void (*resetFunction)());
#endif /* SINVAL_H */
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