From e37f0aa90eaf869fd0ddf6c4b49f9f1756cf3f6c Mon Sep 17 00:00:00 2001
From: Anna Henningsen <anna.henningsen@mongodb.com>
Date: Mon, 6 Feb 2023 21:01:42 +0100
Subject: [PATCH] src: add fflush() to SnapshotData::ToFile()

Refs: https://github.com/nodejs/node/pull/46491#discussion_r1097610165
---
 src/node_snapshotable.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/node_snapshotable.cc b/src/node_snapshotable.cc
index 1a19f44bec8198..d4f45bf31019ea 100644
--- a/src/node_snapshotable.cc
+++ b/src/node_snapshotable.cc
@@ -866,6 +866,7 @@ void SnapshotData::ToFile(FILE* out) const {
   const std::vector<char> sink = ToBlob();
   size_t num_written = fwrite(sink.data(), sink.size(), 1, out);
   CHECK_EQ(num_written, 1);
+  CHECK_EQ(fflush(out), 0);
 }
 
 const SnapshotData* SnapshotData::FromEmbedderWrapper(