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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 1.5 1997/09/07 05:01:36 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef SINVAL_H
#define SINVAL_H
#include <storage/itemptr.h>
#include <storage/spin.h>
extern SPINLOCK SInvalLock;
extern void CreateSharedInvalidationState(IPCKey key);
extern void AttachSharedInvalidationState(IPCKey key);
extern void InitSharedInvalidationState(void);
extern void
RegisterSharedInvalid(int cacheId, Index hashIndex,
ItemPointer pointer);
extern void InvalidateSharedInvalid(void (*invalFunction) (),
void (*resetFunction) ());
#endif /* SINVAL_H */
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