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Reduce xlog.h inclusion footprint 

This file needs xlogreader.h only for the XLogReaderState typedef; but
we can dodge that by forward-declaring it.  Many files use xlog.h for
reasons other than reading WAL, and it's not good to force all those
files to include xlogreader.h, so take it out.

Surprisingly, there is no fallout in core code from making this change.
Perhaps external code will have to start including xlogreader.h.
This commit is contained in:
Alvaro Herrera 2022-10-12 09:44:40 +02:00
parent c929b2745f
commit 9c0de04242
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GPG Key ID: 1C20ACB9D5C564AE
1 changed files with 3 additions and 3 deletions
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6
src/include/access/xlog.h
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@ -13,7 +13,6 @@
#include "access/xlogbackup.h"
#include "access/xlogdefs.h"
#include "access/xlogreader.h"
#include "datatype/timestamp.h"
#include "lib/stringinfo.h"
#include "nodes/pg_list.h"
@ -192,6 +191,7 @@ typedef enum WALAvailability
} WALAvailability;
struct XLogRecData;
struct XLogReaderState;
extern XLogRecPtr XLogInsertRecord(struct XLogRecData *rdata,
XLogRecPtr fpw_lsn,
@ -209,8 +209,8 @@ extern XLogSegNo XLogGetLastRemovedSegno(void);
extern void XLogSetAsyncXactLSN(XLogRecPtr asyncXactLSN);
extern void XLogSetReplicationSlotMinimumLSN(XLogRecPtr lsn);
extern void xlog_redo(XLogReaderState *record);
extern void xlog_desc(StringInfo buf, XLogReaderState *record);
extern void xlog_redo(struct XLogReaderState *record);
extern void xlog_desc(StringInfo buf, struct XLogReaderState *record);
extern const char *xlog_identify(uint8 info);
extern void issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli);