From 6036971c7780552f0112151f35c8d49a02eaa1f8 Mon Sep 17 00:00:00 2001
From: peterbell10 <peterbell10@live.co.uk>
Date: Mon, 8 Jun 2020 21:03:29 +0100
Subject: [PATCH] libevent: Enable IOCP backend on windows (#4745)

---
 src/OSSupport/NetworkSingleton.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/OSSupport/NetworkSingleton.cpp b/src/OSSupport/NetworkSingleton.cpp
index 95de0e7b5..e022f4fec 100644
--- a/src/OSSupport/NetworkSingleton.cpp
+++ b/src/OSSupport/NetworkSingleton.cpp
@@ -75,12 +75,15 @@ void cNetworkSingleton::Initialise(void)
 	#endif
 
 	// Create the main event_base:
-	m_EventBase = event_base_new();
+	event_config * config = event_config_new();
+	event_config_set_flag(config, EVENT_BASE_FLAG_STARTUP_IOCP);
+	m_EventBase = event_base_new_with_config(config);
 	if (m_EventBase == nullptr)
 	{
 		LOGERROR("Failed to initialize LibEvent. The server will now terminate.");
 		abort();
 	}
+	event_config_free(config);
 
 	// Create the event loop thread:
 	m_HasTerminated = false;