Move user functions related to WAL into xlogfuncs.c

src/backend/access/transam/Makefile

@@ -12,7 +12,8 @@ subdir = src/backend/access/transam
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
-OBJS = clog.o transam.o varsup.o xact.o xlog.o xlogutils.o rmgr.o slru.o subtrans.o multixact.o twophase.o twophase_rmgr.o
+OBJS = clog.o transam.o varsup.o xact.o rmgr.o slru.o subtrans.o multixact.o \
+	twophase.o twophase_rmgr.o xlog.o xlogfuncs.o xlogutils.o
 
 include $(top_srcdir)/src/backend/common.mk
 

src/include/access/xlog.h

@@ -293,6 +293,11 @@ extern bool XLogInsertAllowed(void);
 extern void GetXLogReceiptTime(TimestampTz *rtime, bool *fromStream);
 extern XLogRecPtr GetXLogReplayRecPtr(XLogRecPtr *restoreLastRecPtr);
 extern XLogRecPtr GetStandbyFlushRecPtr(void);
+extern XLogRecPtr GetXLogInsertRecPtr(bool needlock);
+extern XLogRecPtr GetXLogWriteRecPtr(void);
+extern bool RecoveryIsPaused(void);
+extern void SetRecoveryPause(bool recoveryPause);
+extern TimestampTz GetLatestXTime(void);
 
 extern void UpdateControlFile(void);
 extern uint64 GetSystemIdentifier(void);