Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.ServiceModel/System/ServiceModel/Channels/TcpConnectionPool.cs

@@ -0,0 +1,59 @@
+//----------------------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//----------------------------------------------------------------------------
+namespace System.ServiceModel.Channels
+{
+    using System.Collections.Generic;
+    using System.Collections.ObjectModel;
+    using System.Diagnostics;
+    using System.Net;
+    using System.Net.Sockets;
+    using System.Globalization;
+    using System.ServiceModel.Diagnostics;
+
+    class TcpConnectionPoolRegistry : ConnectionPoolRegistry
+    {
+        public TcpConnectionPoolRegistry()
+            : base()
+        {
+        }
+
+        protected override ConnectionPool CreatePool(IConnectionOrientedTransportChannelFactorySettings settings)
+        {
+            ITcpChannelFactorySettings tcpSettings = (ITcpChannelFactorySettings)settings;
+            return new TcpConnectionPool(tcpSettings);
+        }
+
+        class TcpConnectionPool : ConnectionPool
+        {
+            public TcpConnectionPool(ITcpChannelFactorySettings settings)
+                : base(settings, settings.LeaseTimeout)
+            {
+            }
+
+            protected override string GetPoolKey(EndpointAddress address, Uri via)
+            {
+                int port = via.Port;
+                if (port == -1)
+                {
+                    port = TcpUri.DefaultPort;
+                }
+
+                string normalizedHost = via.DnsSafeHost.ToUpperInvariant();
+
+                return string.Format(CultureInfo.InvariantCulture, @"[{0}, {1}]", normalizedHost, port);
+            }
+
+            public override bool IsCompatible(IConnectionOrientedTransportChannelFactorySettings settings)
+            {
+                ITcpChannelFactorySettings tcpSettings = (ITcpChannelFactorySettings)settings;
+                return (
+                    (this.LeaseTimeout == tcpSettings.LeaseTimeout) &&
+                    base.IsCompatible(settings)
+                    );
+            }
+        }
+    }
+}
+
+