From bb7e3f6045a5e7b23a04886f9206faec95dc85cb Mon Sep 17 00:00:00 2001
From: Zachary Anderson <zanderso@users.noreply.github.com>
Date: Thu, 26 Sep 2019 13:41:11 -0700
Subject: [PATCH] [flutter_tools] Report iOS mDNS lookup failures to analytics
 (#41384)

---
 packages/flutter_tools/lib/src/ios/devices.dart | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/flutter_tools/lib/src/ios/devices.dart b/packages/flutter_tools/lib/src/ios/devices.dart
index 9b62d776d1c..568d0b86a83 100644
--- a/packages/flutter_tools/lib/src/ios/devices.dart
+++ b/packages/flutter_tools/lib/src/ios/devices.dart
@@ -373,13 +373,15 @@ class IOSDevice extends Device {
           debuggingOptions.observatoryPort,
         );
         if (localUri != null) {
+          UsageEvent('ios-mdns', 'success').send();
           return LaunchResult.succeeded(observatoryUri: localUri);
         }
       } catch (error) {
         printError('Failed to establish a debug connection with $id: $error');
       }
 
-      // Fallback to manual protocol discovery
+      // Fallback to manual protocol discovery.
+      UsageEvent('ios-mdns', 'failure').send();
       printTrace('mDNS lookup failed, attempting fallback to reading device log.');
       try {
         printTrace('Waiting for observatory port.');