From c8966122a67285d863c6963c14e013fdf807e27b Mon Sep 17 00:00:00 2001
From: staphen <staphen@gmail.com>
Date: Mon, 30 May 2022 17:39:20 -0400
Subject: [PATCH] Check if dthread is running before locking mutex

---
 Source/dthread.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Source/dthread.cpp b/Source/dthread.cpp
index ab12b5ae8..2572562d9 100644
--- a/Source/dthread.cpp
+++ b/Source/dthread.cpp
@@ -60,6 +60,9 @@ void DthreadHandler()
 
 void dthread_remove_player(uint8_t pnum)
 {
+	if (!DthreadRunning)
+		return;
+
 	std::lock_guard<SdlMutex> lock(*DthreadMutex);
 	InfoList.remove_if([&](auto &pkt) {
 		return pkt.pnum == pnum;
@@ -68,7 +71,7 @@ void dthread_remove_player(uint8_t pnum)
 
 void dthread_send_delta(int pnum, _cmd_id cmd, std::unique_ptr<byte[]> data, uint32_t len)
 {
-	if (!gbIsMultiplayer)
+	if (!gbIsMultiplayer || !DthreadRunning)
 		return;
 
 	DThreadPkt pkt { pnum, cmd, std::move(data), len };