From c7e79dfb6abc69ffed9c994dd0f2cc2e218d19a9 Mon Sep 17 00:00:00 2001
From: Mygod <contact-github@mygod.be>
Date: Thu, 4 Oct 2018 19:45:54 +0800
Subject: [PATCH] Allow unregister to fail

Race condition might occur when cleaning.
---
 .../java/be/mygod/vpnhotspot/net/monitor/TrafficRecorder.kt    | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mobile/src/main/java/be/mygod/vpnhotspot/net/monitor/TrafficRecorder.kt b/mobile/src/main/java/be/mygod/vpnhotspot/net/monitor/TrafficRecorder.kt
index cbef0f28..fd1d0e3f 100644
--- a/mobile/src/main/java/be/mygod/vpnhotspot/net/monitor/TrafficRecorder.kt
+++ b/mobile/src/main/java/be/mygod/vpnhotspot/net/monitor/TrafficRecorder.kt
@@ -37,7 +37,8 @@ object TrafficRecorder {
     }
     fun unregister(ip: InetAddress, upstream: String?, downstream: String) = synchronized(this) {
         update()    // flush stats before removing
-        check(records.remove(Triple(ip, upstream, downstream)) != null)
+        if (records.remove(Triple(ip, upstream, downstream)) == null) Timber.w(
+                "Failed to find traffic record for ($ip, $downstream, $upstream).")
     }
 
     private fun unscheduleUpdateLocked() {