From 459e208276a4d1457d37bf41c977e62caf05456d Mon Sep 17 00:00:00 2001
From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
Date: Sat, 30 Oct 2021 19:33:09 +0300
Subject: [PATCH] Exit early for an empty vChecks in CCheckQueue::Add

---
 src/checkqueue.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/checkqueue.h b/src/checkqueue.h
index d926326a959..760dfbddc13 100644
--- a/src/checkqueue.h
+++ b/src/checkqueue.h
@@ -167,6 +167,10 @@ public:
     //! Add a batch of checks to the queue
     void Add(std::vector<T>& vChecks)
     {
+        if (vChecks.empty()) {
+            return;
+        }
+
         {
             LOCK(m_mutex);
             for (T& check : vChecks) {
@@ -176,10 +180,11 @@ public:
             nTodo += vChecks.size();
         }
 
-        if (vChecks.size() == 1)
+        if (vChecks.size() == 1) {
             m_worker_cv.notify_one();
-        else if (vChecks.size() > 1)
+        } else {
             m_worker_cv.notify_all();
+        }
     }
 
     //! Stop all of the worker threads.