From 7cd66fa46187c2d6cb1b0d480ed1edafb908100f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Piotr=20W=C3=B3jcik?=
 <3044353+pwojcikdev@users.noreply.github.com>
Date: Tue, 29 Nov 2022 13:30:35 +0100
Subject: [PATCH] Skip empty batches in `processing_queue` (#4008)

---
 nano/lib/processing_queue.hpp | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/nano/lib/processing_queue.hpp b/nano/lib/processing_queue.hpp
index 0fce61ed..8322ea00 100644
--- a/nano/lib/processing_queue.hpp
+++ b/nano/lib/processing_queue.hpp
@@ -145,10 +145,13 @@ private:
 		while (!stopped)
 		{
 			auto batch = next_batch (lock);
-			lock.unlock ();
-			stats.inc (stat_type, nano::stat::detail::batch);
-			process_batch (batch);
-			lock.lock ();
+			if (!batch.empty ())
+			{
+				lock.unlock ();
+				stats.inc (stat_type, nano::stat::detail::batch);
+				process_batch (batch);
+				lock.lock ();
+			}
 		}
 	}