datapagemap.h

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/*-------------------------------------------------------------------------
 *
 * datapagemap.h
 *
 * Copyright (c) 2013-2023, PostgreSQL Global Development Group
 *
 *-------------------------------------------------------------------------
 */
#ifndef DATAPAGEMAP_H
#define DATAPAGEMAP_H
 
#include "storage/block.h"
#include "storage/relfilelocator.h"
 
struct datapagemap
{
    char       *bitmap;
    int         bitmapsize;
};
 
typedef struct datapagemap datapagemap_t;
typedef struct datapagemap_iterator datapagemap_iterator_t;
 
extern void datapagemap_add(datapagemap_t *map, BlockNumber blkno);
extern datapagemap_iterator_t *datapagemap_iterate(datapagemap_t *map);
extern bool datapagemap_next(datapagemap_iterator_t *iter, BlockNumber *blkno);
extern void datapagemap_print(datapagemap_t *map);
 
#endif                          /* DATAPAGEMAP_H */