From 27bdb443b3abec5c41b724c5b0d566e9b70f4542 Mon Sep 17 00:00:00 2001
From: Adrian Serrano <adrisr83@gmail.com>
Date: Mon, 13 Nov 2017 22:13:56 -0800
Subject: [PATCH] Avoid assertion failure when using Host Device

Passing a device ID of zero (Host device) to FSEventsCopyUUIDForDevice
causes the following assertion failure error to be printed to the logs:

(FSEvents.framework) FSEventsCopyUUIDForDevice(): failed assertion 'dev > 0'
---
 fsevents.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fsevents.go b/fsevents.go
index 6ff0797..fd0bd86 100644
--- a/fsevents.go
+++ b/fsevents.go
@@ -158,7 +158,9 @@ func (es *EventStream) Start() {
 	// in C callback
 	cbInfo := registry.Add(es)
 	es.registryID = cbInfo
-	es.uuid = GetDeviceUUID(es.Device)
+	if es.Device != 0 {
+		es.uuid = GetDeviceUUID(es.Device)
+	}
 	es.start(es.Paths, cbInfo)
 }