v3-0004-pg_recvlogical-remove-unnecessary-OutputFsync-ret.txt

text/plain

Filename: v3-0004-pg_recvlogical-remove-unnecessary-OutputFsync-ret.txt
Type: text/plain
Part: 0
Message: Re: Re: pg_recvlogical: Prevent flushed data from being re-sent after restarting replication
From a6ed81df5fc042b1b3684c24a4b4ae3acfb10576 Mon Sep 17 00:00:00 2001
From: Fujii Masao <fujii@postgresql.org>
Date: Thu, 25 Dec 2025 19:41:03 +0900
Subject: [PATCH v3 4/4] pg_recvlogical: remove unnecessary OutputFsync()
 return value checks.

Commit 1e2fddfa33d changed OutputFsync() so that it always returns true.
However, pg_recvlogical.c still contained checks of its boolean return
value, which are now redundant.

This commit removes those checks and changes the type of return value of
OutputFsync() to void, simplifying the code.
---
 src/bin/pg_basebackup/pg_recvlogical.c | 23 +++++++----------------
 1 file changed, 7 insertions(+), 16 deletions(-)

diff --git a/src/bin/pg_basebackup/pg_recvlogical.c b/src/bin/pg_basebackup/pg_recvlogical.c
index 0354173bcbc..60e77406b77 100644
--- a/src/bin/pg_basebackup/pg_recvlogical.c
+++ b/src/bin/pg_basebackup/pg_recvlogical.c
@@ -184,7 +184,7 @@ disconnect_atexit(void)
 		PQfinish(conn);
 }
 
-static bool
+static void
 OutputFsync(TimestampTz now)
 {
 	output_last_fsync = now;
@@ -199,21 +199,19 @@ OutputFsync(TimestampTz now)
 	startpos = output_fsync_lsn;
 
 	if (fsync_interval <= 0)
-		return true;
+		return;
 
 	if (!output_needs_fsync)
-		return true;
+		return;
 
 	output_needs_fsync = false;
 
 	/* can only fsync if it's a regular file */
 	if (!output_isfile)
-		return true;
+		return;
 
 	if (fsync(outfd) != 0)
 		pg_fatal("could not fsync file \"%s\": %m", outfile);
-
-	return true;
 }
 
 /*
@@ -314,10 +312,7 @@ StreamLogicalLog(void)
 		if (outfd != -1 &&
 			feTimestampDifferenceExceeds(output_last_fsync, now,
 										 fsync_interval))
-		{
-			if (!OutputFsync(now))
-				goto error;
-		}
+			OutputFsync(now);
 
 		if (standby_message_timeout > 0 &&
 			feTimestampDifferenceExceeds(last_status, now,
@@ -334,8 +329,7 @@ StreamLogicalLog(void)
 		if (outfd != -1 && output_reopen && strcmp(outfile, "-") != 0)
 		{
 			now = feGetCurrentTimestamp();
-			if (!OutputFsync(now))
-				goto error;
+			OutputFsync(now);
 			close(outfd);
 			outfd = -1;
 		}
@@ -654,9 +648,7 @@ StreamLogicalLog(void)
 	{
 		TimestampTz t = feGetCurrentTimestamp();
 
-		/* no need to jump to error on failure here, we're finishing anyway */
 		OutputFsync(t);
-
 		if (close(outfd) != 0)
 			pg_log_error("could not close file \"%s\": %m", outfile);
 	}
@@ -1065,8 +1057,7 @@ static bool
 flushAndSendFeedback(PGconn *conn, TimestampTz *now)
 {
 	/* flush data to disk, so that we send a recent flush pointer */
-	if (!OutputFsync(*now))
-		return false;
+	OutputFsync(*now);
 	*now = feGetCurrentTimestamp();
 	if (!sendFeedback(conn, *now, true, false))
 		return false;
-- 
2.51.2