From f2159d14bbe00762b63461d06a716754d2c86914 Mon Sep 17 00:00:00 2001
From: knokko <knokogator@hotmail.com>
Date: Tue, 13 Feb 2024 11:08:22 +0100
Subject: [PATCH] Fix potential concurrency issue

---
 .../src/main/java/com/github/knokko/update/UpdateLoop.java   | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/implementation/src/main/java/com/github/knokko/update/UpdateLoop.java b/implementation/src/main/java/com/github/knokko/update/UpdateLoop.java
index bd80249..5452995 100644
--- a/implementation/src/main/java/com/github/knokko/update/UpdateLoop.java
+++ b/implementation/src/main/java/com/github/knokko/update/UpdateLoop.java
@@ -100,10 +100,11 @@ public void stop() {
     }
 
     private long determineSleepTime(long currentTime) {
-        long nextUpdateAt = reference.time + reference.counter * period;
+        Reference currentReference = reference;
+        long nextUpdateAt = currentReference.time + currentReference.counter * period;
         long nextSleepTime = nextUpdateAt - currentTime;
 
-        if (-nextSleepTime > maximumBacklog) reference.time += -nextSleepTime - maximumBacklog;
+        if (-nextSleepTime > maximumBacklog) currentReference.time += -nextSleepTime - maximumBacklog;
 
         return nextSleepTime / 1000_000L;
     }