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/*-------------------------------------------------------------------------
*
* visibilitymap.h
* visibility map interface
*
*
* Portions Copyright (c) 2007-2013, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/access/visibilitymap.h
*
*-------------------------------------------------------------------------
*/
#ifndef VISIBILITYMAP_H
#define VISIBILITYMAP_H
#include "access/xlogdefs.h"
#include "storage/block.h"
#include "storage/buf.h"
#include "utils/relcache.h"
extern void visibilitymap_clear(Relation rel, BlockNumber heapBlk,
Buffer vmbuf);
extern void visibilitymap_pin(Relation rel, BlockNumber heapBlk,
Buffer *vmbuf);
extern bool visibilitymap_pin_ok(BlockNumber heapBlk, Buffer vmbuf);
extern void visibilitymap_set(Relation rel, BlockNumber heapBlk,
XLogRecPtr recptr, Buffer vmbuf, TransactionId cutoff_xid);
extern bool visibilitymap_test(Relation rel, BlockNumber heapBlk, Buffer *vmbuf);
extern BlockNumber visibilitymap_count(Relation rel);
extern void visibilitymap_truncate(Relation rel, BlockNumber nheapblocks);
#endif /* VISIBILITYMAP_H */
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