From 14706302872c7e35934345fe75e1f24a5857ad16 Mon Sep 17 00:00:00 2001
From: Amul Sul <sulamul@gmail.com>
Date: Thu, 22 Jan 2026 10:28:32 +0530
Subject: [PATCH v15 02/11] Refactor: pg_waldump: Move some declarations to new
 pg_waldump.h

This change prepares for a second source file in this directory to
support reading WAL from tar files. Common structures, declarations,
and functions are being exported through this include file so
they can be used in both files.
---
 src/bin/pg_waldump/pg_waldump.c |  9 +--------
 src/bin/pg_waldump/pg_waldump.h | 25 +++++++++++++++++++++++++
 2 files changed, 26 insertions(+), 8 deletions(-)
 create mode 100644 src/bin/pg_waldump/pg_waldump.h

diff --git a/src/bin/pg_waldump/pg_waldump.c b/src/bin/pg_waldump/pg_waldump.c
index f3446385d6a..4b7411a6498 100644
--- a/src/bin/pg_waldump/pg_waldump.c
+++ b/src/bin/pg_waldump/pg_waldump.c
@@ -29,6 +29,7 @@
 #include "common/logging.h"
 #include "common/relpath.h"
 #include "getopt_long.h"
+#include "pg_waldump.h"
 #include "rmgrdesc.h"
 #include "storage/bufpage.h"
 
@@ -43,14 +44,6 @@ static volatile sig_atomic_t time_to_stop = false;
 
 static const RelFileLocator emptyRelFileLocator = {0, 0, 0};
 
-typedef struct XLogDumpPrivate
-{
-	TimeLineID	timeline;
-	XLogRecPtr	startptr;
-	XLogRecPtr	endptr;
-	bool		endptr_reached;
-} XLogDumpPrivate;
-
 typedef struct XLogDumpConfig
 {
 	/* display options */
diff --git a/src/bin/pg_waldump/pg_waldump.h b/src/bin/pg_waldump/pg_waldump.h
new file mode 100644
index 00000000000..64a9109229e
--- /dev/null
+++ b/src/bin/pg_waldump/pg_waldump.h
@@ -0,0 +1,25 @@
+/*-------------------------------------------------------------------------
+ *
+ * pg_waldump.h - decode and display WAL
+ *
+ * Copyright (c) 2026, PostgreSQL Global Development Group
+ *
+ * IDENTIFICATION
+ *		  src/bin/pg_waldump/pg_waldump.h
+ *-------------------------------------------------------------------------
+ */
+#ifndef PG_WALDUMP_H
+#define PG_WALDUMP_H
+
+#include "access/xlogdefs.h"
+
+/* Contains the necessary information to drive WAL decoding */
+typedef struct XLogDumpPrivate
+{
+	TimeLineID	timeline;
+	XLogRecPtr	startptr;
+	XLogRecPtr	endptr;
+	bool		endptr_reached;
+} XLogDumpPrivate;
+
+#endif							/* PG_WALDUMP_H */
-- 
2.47.1