From 42a21d444b63e2aa9e2dcf984f9ba097b00ec20d Mon Sep 17 00:00:00 2001
From: Joseph Henry <josephjah@gmail.com>
Date: Tue, 31 Jul 2018 15:58:03 -0700
Subject: [PATCH] Fixed Windows high CPU utilization bug

---
 src/VirtualTap.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/VirtualTap.cpp b/src/VirtualTap.cpp
index 6df887c..54f0f62 100644
--- a/src/VirtualTap.cpp
+++ b/src/VirtualTap.cpp
@@ -47,6 +47,10 @@ typedef unsigned short u16_t;
 #include "InetAddress.hpp"
 #include "OneService.hpp"
 
+#ifdef _MSC_VER
+#include "Synchapi.h"
+#endif
+
 int VirtualTap::devno = 0;
 
 VirtualTap::VirtualTap(
@@ -208,7 +212,12 @@ void VirtualTap::threadMain()
 	throw()
 {
 	while (true) {
+#ifdef _MSC_VER
+		Sleep(ZT_PHY_POLL_INTERVAL);
+		_phy.poll(0);
+#else
 		_phy.poll(ZT_PHY_POLL_INTERVAL);
+#endif
 		Housekeeping();
 	}
 }