xlogstats.h

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/*-------------------------------------------------------------------------
 *
 * xlogstats.h
 *      Definitions for WAL Statistics
 *
 * Copyright (c) 2022-2026, PostgreSQL Global Development Group
 *
 * IDENTIFICATION
 *      src/include/access/xlogstats.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef XLOGSTATS_H
#define XLOGSTATS_H
 
#include "access/rmgr.h"
#include "access/xlogreader.h"
 
#define MAX_XLINFO_TYPES 16
 
typedef struct XLogRecStats
{
    uint64      count;
    uint64      rec_len;
    uint64      fpi_len;
} XLogRecStats;
 
typedef struct XLogStats
{
    uint64      count;
#ifdef FRONTEND
    XLogRecPtr  startptr;
    XLogRecPtr  endptr;
#endif
    XLogRecStats rmgr_stats[RM_MAX_ID + 1];
    XLogRecStats record_stats[RM_MAX_ID + 1][MAX_XLINFO_TYPES];
} XLogStats;
 
extern void XLogRecGetLen(XLogReaderState *record, uint32 *rec_len,
                          uint32 *fpi_len);
extern void XLogRecStoreStats(XLogStats *stats, XLogReaderState *record);
 
#endif                          /* XLOGSTATS_H */