From 6847cac829b34963467cfed6c9cb39c84d1582fb Mon Sep 17 00:00:00 2001
From: Luke Pulverenti <luke.pulverenti@gmail.com>
Date: Wed, 22 Feb 2017 15:58:02 -0500
Subject: update recording conversion

---
 .../EntryPoints/ExternalPortForwarding.cs          | 26 +++++++++++++++-------
 1 file changed, 18 insertions(+), 8 deletions(-)

(limited to 'Emby.Server.Core/EntryPoints')

diff --git a/Emby.Server.Core/EntryPoints/ExternalPortForwarding.cs b/Emby.Server.Core/EntryPoints/ExternalPortForwarding.cs
index eb3a714652..2c7e6a4870 100644
--- a/Emby.Server.Core/EntryPoints/ExternalPortForwarding.cs
+++ b/Emby.Server.Core/EntryPoints/ExternalPortForwarding.cs
@@ -187,7 +187,10 @@ namespace Emby.Server.Core.EntryPoints
 
         private void ClearCreatedRules(object state)
         {
-            _createdRules = new List<string>();
+            lock (_createdRules)
+            {
+                _createdRules.Clear();
+            }
             lock (_usnsHandled)
             {
                 _usnsHandled.Clear();
@@ -236,16 +239,23 @@ namespace Emby.Server.Core.EntryPoints
 
             var address = device.LocalAddress.ToString();
 
-            if (!_createdRules.Contains(address))
+            lock (_createdRules)
             {
-                _createdRules.Add(address);
-
-                var success = await CreatePortMap(device, _appHost.HttpPort, _config.Configuration.PublicPort).ConfigureAwait(false);
-
-                if (success)
+                if (!_createdRules.Contains(address))
                 {
-                    await CreatePortMap(device, _appHost.HttpsPort, _config.Configuration.PublicHttpsPort).ConfigureAwait(false);
+                    _createdRules.Add(address);
                 }
+                else
+                {
+                    return;
+                }
+            }
+
+            var success = await CreatePortMap(device, _appHost.HttpPort, _config.Configuration.PublicPort).ConfigureAwait(false);
+
+            if (success)
+            {
+                await CreatePortMap(device, _appHost.HttpsPort, _config.Configuration.PublicHttpsPort).ConfigureAwait(false);
             }
         }
 
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