Close UvAsyncHandle properly to avoid zombie threads

- Even when safe handles are disposed explicitly, ReleaseHandle is sometimes
  called on another thread which breaks uv_close.
- Ensure we close the UvAsyncHandle the uv loop so that the second call
  to uv_run always completes without a timeout/Thread.Abort.
- Re-enable some tests. Add skip conditions for those that aren't passing.

src/Microsoft.AspNetCore.Server.Kestrel/Http/Listener.cs

@@ -29,8 +29,9 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Http
 
             var tcs = new TaskCompletionSource<int>(this);
 
-            Thread.Post(tcs2 =>
+            Thread.Post(state =>
             {
+                var tcs2 = (TaskCompletionSource<int>)state;
                 try
                 {
                     var listener = ((Listener)tcs2.Task.AsyncState);

src/Microsoft.AspNetCore.Server.Kestrel/Http/ListenerPrimary.cs

@@ -46,7 +46,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Http
         private void PostCallback()
         {
             ListenPipe = new UvPipeHandle(Log);
-            ListenPipe.Init(Thread.Loop, false);
+            ListenPipe.Init(Thread.Loop, Thread.QueueCloseHandle, false);
             ListenPipe.Bind(_pipeName);
             ListenPipe.Listen(Constants.ListenBacklog,
                 (pipe, status, error, state) => ((ListenerPrimary)state).OnListenPipe(pipe, status, error), this);
@@ -60,7 +60,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Http
             }
 
             var dispatchPipe = new UvPipeHandle(Log);
-            dispatchPipe.Init(Thread.Loop, true);
+            dispatchPipe.Init(Thread.Loop, Thread.QueueCloseHandle, true);
 
             try
             {

src/Microsoft.AspNetCore.Server.Kestrel/Http/ListenerSecondary.cs

@@ -42,7 +42,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Http
             DispatchPipe = new UvPipeHandle(Log);
 
             var tcs = new TaskCompletionSource<int>(this);
-            Thread.Post(tcs2 => StartCallback(tcs2), tcs);
+            Thread.Post(state => StartCallback((TaskCompletionSource<int>)state), tcs);
             return tcs.Task;
         }
 
@@ -56,7 +56,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Http
         {
             try
             {
-                DispatchPipe.Init(Thread.Loop, true);
+                DispatchPipe.Init(Thread.Loop, Thread.QueueCloseHandle, true);
                 var connect = new UvConnectRequest(Log);
                 connect.Init(Thread.Loop);
                 connect.Connect(

src/Microsoft.AspNetCore.Server.Kestrel/Http/PipeListener.cs

@@ -23,7 +23,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Http
         protected override UvStreamHandle CreateListenSocket()
         {
             var socket = new UvPipeHandle(Log);
-            socket.Init(Thread.Loop, false);
+            socket.Init(Thread.Loop, Thread.QueueCloseHandle, false);
             socket.Bind(ServerAddress.UnixPipePath);
             socket.Listen(Constants.ListenBacklog, (stream, status, error, state) => ConnectionCallback(stream, status, error, state), this);
             return socket;
@@ -40,7 +40,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Http
 
             try
             {
-                acceptSocket.Init(Thread.Loop, false);
+                acceptSocket.Init(Thread.Loop, Thread.QueueCloseHandle, false);
                 listenSocket.Accept(acceptSocket);
                 DispatchConnection(acceptSocket);
             }

src/Microsoft.AspNetCore.Server.Kestrel/Http/PipeListenerPrimary.cs

@@ -23,7 +23,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Http
         protected override UvStreamHandle CreateListenSocket()
         {
             var socket = new UvPipeHandle(Log);
-            socket.Init(Thread.Loop, false);
+            socket.Init(Thread.Loop, Thread.QueueCloseHandle, false);
             socket.Bind(ServerAddress.UnixPipePath);
             socket.Listen(Constants.ListenBacklog, (stream, status, error, state) => ConnectionCallback(stream, status, error, state), this);
             return socket;
@@ -40,7 +40,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Http
 
             try
             {
-                acceptSocket.Init(Thread.Loop, false);
+                acceptSocket.Init(Thread.Loop, Thread.QueueCloseHandle, false);
                 listenSocket.Accept(acceptSocket);
                 DispatchConnection(acceptSocket);
             }

src/Microsoft.AspNetCore.Server.Kestrel/Http/PipeListenerSecondary.cs

@@ -20,7 +20,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Http
         protected override UvStreamHandle CreateAcceptSocket()
         {
             var acceptSocket = new UvPipeHandle(Log);
-            acceptSocket.Init(Thread.Loop, false);
+            acceptSocket.Init(Thread.Loop, Thread.QueueCloseHandle, false);
             return acceptSocket;
         }
     }

src/Microsoft.AspNetCore.Server.Kestrel/Http/SocketOutput.cs

@@ -314,7 +314,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Http
 
         private void ScheduleWrite()
         {
-            _thread.Post(_this => _this.WriteAllPending(), this);
+            _thread.Post(state => ((SocketOutput)state).WriteAllPending(), this);
         }
 
         // This is called on the libuv event loop

src/Microsoft.AspNetCore.Server.Kestrel/Infrastructure/KestrelThread.cs

@@ -24,9 +24,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel
         // otherwise it needs to wait till the next pass of the libuv loop
         private const int _maxLoops = 8;
 
-        private static readonly Action<object, object> _threadCallbackAdapter = (callback, state) => ((Action<KestrelThread>)callback).Invoke((KestrelThread)state);
-        private static readonly Action<object, object> _socketCallbackAdapter = (callback, state) => ((Action<SocketOutput>)callback).Invoke((SocketOutput)state);
-        private static readonly Action<object, object> _tcsCallbackAdapter = (callback, state) => ((Action<TaskCompletionSource<int>>)callback).Invoke((TaskCompletionSource<int>)state);
+        private static readonly Action<object, object> _postCallbackAdapter = (callback, state) => ((Action<object>)callback).Invoke(state);
         private static readonly Action<object, object> _postAsyncCallbackAdapter = (callback, state) => ((Action<object>)callback).Invoke(state);
 
         private readonly KestrelEngine _engine;
@@ -56,12 +54,16 @@ namespace Microsoft.AspNetCore.Server.Kestrel
             _thread = new Thread(ThreadStart);
             _thread.Name = "KestrelThread - libuv";
             QueueCloseHandle = PostCloseHandle;
+            QueueCloseAsyncHandle = EnqueueCloseHandle;
         }
 
         public UvLoopHandle Loop { get { return _loop; } }
+
         public ExceptionDispatchInfo FatalError { get { return _closeError; } }
 
-        public Action<Action<IntPtr>, IntPtr> QueueCloseHandle { get; internal set; }
+        public Action<Action<IntPtr>, IntPtr> QueueCloseHandle { get; }
+
+        private Action<Action<IntPtr>, IntPtr> QueueCloseAsyncHandle { get; }
 
         public Task StartAsync()
         {
@@ -137,41 +139,23 @@ namespace Microsoft.AspNetCore.Server.Kestrel
             _loop.Stop();
         }
 
+        public void Post(Action<object> callback, object state)
+        {
+            lock (_workSync)
+            {
+                _workAdding.Enqueue(new Work
+                {
+                    CallbackAdapter = _postCallbackAdapter,
+                    Callback = callback,
+                    State = state
+                });
+            }
+            _post.Send();
+        }
+
         private void Post(Action<KestrelThread> callback)
         {
-            lock (_workSync)
-            {
-                _workAdding.Enqueue(new Work { CallbackAdapter = _threadCallbackAdapter, Callback = callback, State = this });
-            }
-            _post.Send();
-        }
-
-        public void Post(Action<SocketOutput> callback, SocketOutput state)
-        {
-            lock (_workSync)
-            {
-                _workAdding.Enqueue(new Work
-                {
-                    CallbackAdapter = _socketCallbackAdapter,
-                    Callback = callback,
-                    State = state
-                });
-            }
-            _post.Send();
-        }
-
-        public void Post(Action<TaskCompletionSource<int>> callback, TaskCompletionSource<int> state)
-        {
-            lock (_workSync)
-            {
-                _workAdding.Enqueue(new Work
-                {
-                    CallbackAdapter = _tcsCallbackAdapter,
-                    Callback = callback,
-                    State = state
-                });
-            }
-            _post.Send();
+            Post(thread => callback((KestrelThread)thread), this);
         }
 
         public Task PostAsync(Action<object> callback, object state)
@@ -192,12 +176,17 @@ namespace Microsoft.AspNetCore.Server.Kestrel
         }
 
         private void PostCloseHandle(Action<IntPtr> callback, IntPtr handle)
+        {
+            EnqueueCloseHandle(callback, handle);
+            _post.Send();
+        }
+
+        private void EnqueueCloseHandle(Action<IntPtr> callback, IntPtr handle)
         {
             lock (_workSync)
             {
                 _closeHandleAdding.Enqueue(new CloseHandle { Callback = callback, Handle = handle });
             }
-            _post.Send();
         }
 
         private void ThreadStart(object parameter)
@@ -206,7 +195,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel
             try
             {
                 _loop.Init(_engine.Libuv);
-                _post.Init(_loop, OnPost);
+                _post.Init(_loop, OnPost, EnqueueCloseHandle);
                 tcs.SetResult(0);
             }
             catch (Exception ex)
@@ -230,18 +219,6 @@ namespace Microsoft.AspNetCore.Server.Kestrel
                 _post.Reference();
                 _post.Dispose();
 
-                _engine.Libuv.walk(
-                    _loop,
-                    (ptr, arg) =>
-                    {
-                        var handle = UvMemory.FromIntPtr<UvHandle>(ptr);
-                        if (handle != _post)
-                        {
-                            handle.Dispose();
-                        }
-                    },
-                    IntPtr.Zero);
-
                 // Ensure the Dispose operations complete in the event loop.
                 var ran2 = _loop.Run();
 
@@ -307,6 +284,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel
 
             return wasWork;
         }
+
         private bool DoPostCloseHandle()
         {
             Queue<CloseHandle> queue;
@@ -333,7 +311,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel
                 }
             }
 
-            return wasWork; 
+            return wasWork;
         }
 
         private struct Work
@@ -343,6 +321,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel
             public object State;
             public TaskCompletionSource<object> Completion;
         }
+
         private struct CloseHandle
         {
             public Action<IntPtr> Callback;

src/Microsoft.AspNetCore.Server.Kestrel/Networking/Libuv.cs

@@ -30,6 +30,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Networking
                 _uv_close = NativeDarwinMonoMethods.uv_close;
                 _uv_async_init = NativeDarwinMonoMethods.uv_async_init;
                 _uv_async_send = NativeDarwinMonoMethods.uv_async_send;
+                _uv_unsafe_async_send = NativeDarwinMonoMethods.uv_unsafe_async_send;
                 _uv_tcp_init = NativeDarwinMonoMethods.uv_tcp_init;
                 _uv_tcp_bind = NativeDarwinMonoMethods.uv_tcp_bind;
                 _uv_tcp_open = NativeDarwinMonoMethods.uv_tcp_open;
@@ -71,6 +72,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Networking
                 _uv_close = NativeMethods.uv_close;
                 _uv_async_init = NativeMethods.uv_async_init;
                 _uv_async_send = NativeMethods.uv_async_send;
+                _uv_unsafe_async_send = NativeMethods.uv_unsafe_async_send;
                 _uv_tcp_init = NativeMethods.uv_tcp_init;
                 _uv_tcp_bind = NativeMethods.uv_tcp_bind;
                 _uv_tcp_open = NativeMethods.uv_tcp_open;
@@ -207,6 +209,12 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Networking
             Check(_uv_async_send(handle));
         }
 
+        protected Func<IntPtr, int> _uv_unsafe_async_send;
+        public void unsafe_async_send(IntPtr handle)
+        {
+            Check(_uv_unsafe_async_send(handle));
+        }
+
         protected Func<UvLoopHandle, UvTcpHandle, int> _uv_tcp_init;
         public void tcp_init(UvLoopHandle loop, UvTcpHandle handle)
         {
@@ -510,6 +518,9 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Networking
             [DllImport("libuv", CallingConvention = CallingConvention.Cdecl)]
             public extern static int uv_async_send(UvAsyncHandle handle);
 
+            [DllImport("libuv", CallingConvention = CallingConvention.Cdecl, EntryPoint = "uv_async_send")]
+            public extern static int uv_unsafe_async_send(IntPtr handle);
+
             [DllImport("libuv", CallingConvention = CallingConvention.Cdecl)]
             public static extern int uv_tcp_init(UvLoopHandle loop, UvTcpHandle handle);
 
@@ -618,6 +629,9 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Networking
             [DllImport("__Internal", CallingConvention = CallingConvention.Cdecl)]
             public extern static int uv_async_send(UvAsyncHandle handle);
 
+            [DllImport("__Internal", CallingConvention = CallingConvention.Cdecl, EntryPoint = "uv_async_send")]
+            public extern static int uv_unsafe_async_send(IntPtr handle);
+
             [DllImport("__Internal", CallingConvention = CallingConvention.Cdecl)]
             public static extern int uv_tcp_init(UvLoopHandle loop, UvTcpHandle handle);
 

src/Microsoft.AspNetCore.Server.Kestrel/Networking/UvAsyncHandle.cs

@@ -2,27 +2,33 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
+using System.Diagnostics;
+using System.Threading;
 using Microsoft.AspNetCore.Server.Kestrel.Infrastructure;
 
 namespace Microsoft.AspNetCore.Server.Kestrel.Networking
 {
     public class UvAsyncHandle : UvHandle
     {
+        private static readonly Libuv.uv_close_cb _destroyMemory = (handle) => DestroyMemory(handle);
+
         private static readonly Libuv.uv_async_cb _uv_async_cb = (handle) => AsyncCb(handle);
         private Action _callback;
+        private Action<Action<IntPtr>, IntPtr> _queueCloseHandle;
 
         public UvAsyncHandle(IKestrelTrace logger) : base(logger)
         {
         }
 
-        public void Init(UvLoopHandle loop, Action callback)
+        public void Init(UvLoopHandle loop, Action callback, Action<Action<IntPtr>, IntPtr> queueCloseHandle)
         {
             CreateMemory(
-                loop.Libuv, 
-                loop.ThreadId, 
+                loop.Libuv,
+                loop.ThreadId,
                 loop.Libuv.handle_size(Libuv.HandleType.ASYNC));
 
             _callback = callback;
+            _queueCloseHandle = queueCloseHandle;
             _uv.async_init(loop, this, _uv_async_cb);
         }
 
@@ -35,5 +41,33 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Networking
         {
             FromIntPtr<UvAsyncHandle>(handle)._callback.Invoke();
         }
+
+        protected override bool ReleaseHandle()
+        {
+            var memory = handle;
+            if (memory != IntPtr.Zero)
+            {
+                handle = IntPtr.Zero;
+
+                if (Thread.CurrentThread.ManagedThreadId == ThreadId)
+                {
+                    _uv.close(memory, _destroyMemory);
+                }
+                else if (_queueCloseHandle != null)
+                {
+                    // This can be called from the finalizer.
+                    // Ensure the closure doesn't reference "this".
+                    var uv = _uv;
+                    _queueCloseHandle(memory2 => uv.close(memory2, _destroyMemory), memory);
+                    uv.unsafe_async_send(memory);
+                }
+                else
+                {
+                    Debug.Assert(false, "UvAsyncHandle not initialized with queueCloseHandle action");
+                    return false;
+                }
+            }
+            return true;
+        }
     }
 }

src/Microsoft.AspNetCore.Server.Kestrel/Networking/UvHandle.cs

@@ -2,6 +2,7 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
+using System.Diagnostics;
 using System.Threading;
 using Microsoft.AspNetCore.Server.Kestrel.Infrastructure;
 
@@ -44,6 +45,11 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Networking
                     var uv = _uv;
                     _queueCloseHandle(memory2 => uv.close(memory2, _destroyMemory), memory);
                 }
+                else
+                {
+                    Debug.Assert(false, "UvHandle not initialized with queueCloseHandle action");
+                    return false;
+                }
             }
             return true;
         }

src/Microsoft.AspNetCore.Server.Kestrel/Networking/UvLoopHandle.cs

@@ -7,7 +7,7 @@ using Microsoft.AspNetCore.Server.Kestrel.Infrastructure;
 
 namespace Microsoft.AspNetCore.Server.Kestrel.Networking
 {
-    public class UvLoopHandle : UvHandle
+    public class UvLoopHandle : UvMemory
     {
         public UvLoopHandle(IKestrelTrace logger) : base(logger)
         {
@@ -35,7 +35,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Networking
 
         unsafe protected override bool ReleaseHandle()
         {
-            var memory = this.handle;
+            var memory = handle;
             if (memory != IntPtr.Zero)
             {
                 // loop_close clears the gcHandlePtr
@@ -46,6 +46,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Networking
 
                 DestroyMemory(memory, gcHandlePtr);
             }
+
             return true;
         }
     }

src/Microsoft.AspNetCore.Server.Kestrel/Networking/UvMemory.cs

@@ -87,6 +87,5 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Networking
             GCHandle gcHandle = GCHandle.FromIntPtr(*(IntPtr*)handle);
             return (THandle)gcHandle.Target;
         }
-
     }
 }

src/Microsoft.AspNetCore.Server.Kestrel/Networking/UvPipeHandle.cs

@@ -13,24 +13,14 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Networking
         {
         }
 
-        public void Init(UvLoopHandle loop, bool ipc)
-        {
-            CreateMemory(
-                loop.Libuv,
-                loop.ThreadId, 
-                loop.Libuv.handle_size(Libuv.HandleType.NAMED_PIPE));
-
-            _uv.pipe_init(loop, this, ipc);
-        }
-
-        public void Init(UvLoopHandle loop, Action<Action<IntPtr>, IntPtr> queueCloseHandle)
+        public void Init(UvLoopHandle loop, Action<Action<IntPtr>, IntPtr> queueCloseHandle, bool ipc = false)
         {
             CreateHandle(
                 loop.Libuv, 
                 loop.ThreadId,
-                loop.Libuv.handle_size(Libuv.HandleType.TCP), queueCloseHandle);
+                loop.Libuv.handle_size(Libuv.HandleType.NAMED_PIPE), queueCloseHandle);
 
-            _uv.pipe_init(loop, this, false);
+            _uv.pipe_init(loop, this, ipc);
         }
 
         public void Bind(string name)

src/Microsoft.AspNetCore.Server.Kestrel/Networking/UvStreamHandle.cs

@@ -15,13 +15,13 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Networking
         private readonly static Libuv.uv_alloc_cb _uv_alloc_cb = (IntPtr handle, int suggested_size, out Libuv.uv_buf_t buf) => UvAllocCb(handle, suggested_size, out buf);
         private readonly static Libuv.uv_read_cb _uv_read_cb = (IntPtr handle, int status, ref Libuv.uv_buf_t buf) => UvReadCb(handle, status, ref buf);
 
-        public Action<UvStreamHandle, int, Exception, object> _listenCallback;
-        public object _listenState;
+        private Action<UvStreamHandle, int, Exception, object> _listenCallback;
+        private object _listenState;
         private GCHandle _listenVitality;
 
-        public Func<UvStreamHandle, int, object, Libuv.uv_buf_t> _allocCallback;
-        public Action<UvStreamHandle, int, object> _readCallback;
-        public object _readState;
+        private Func<UvStreamHandle, int, object, Libuv.uv_buf_t> _allocCallback;
+        private Action<UvStreamHandle, int, object> _readCallback;
+        private object _readState;
         private GCHandle _readVitality;
 
         protected UvStreamHandle(IKestrelTrace logger) : base(logger)

src/Microsoft.AspNetCore.Server.Kestrel/Networking/UvTcpHandle.cs

@@ -14,16 +14,6 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Networking
         {
         }
 
-        public void Init(UvLoopHandle loop)
-        {
-            CreateMemory(
-                loop.Libuv,
-                loop.ThreadId,
-                loop.Libuv.handle_size(Libuv.HandleType.TCP));
-
-            _uv.tcp_init(loop, this);
-        }
-
         public void Init(UvLoopHandle loop, Action<Action<IntPtr>, IntPtr> queueCloseHandle)
         {
             CreateHandle(

test/Microsoft.AspNetCore.Server.KestrelTests/MultipleLoopTests.cs

@@ -21,13 +21,14 @@ namespace Microsoft.AspNetCore.Server.KestrelTests
             _logger = engine.Log;
         }
 
+        [Fact]
         public void InitAndCloseServerPipe()
         {
             var loop = new UvLoopHandle(_logger);
             var pipe = new UvPipeHandle(_logger);
 
             loop.Init(_uv);
-            pipe.Init(loop, true);
+            pipe.Init(loop, (a, b) => { }, true);
             pipe.Bind(@"\\.\pipe\InitAndCloseServerPipe");
             pipe.Dispose();
 
@@ -38,18 +39,19 @@ namespace Microsoft.AspNetCore.Server.KestrelTests
 
         }
 
+        [Fact(Skip = "Test needs to be fixed (UvException: Error -4082 EBUSY resource busy or locked from loop_close)")]
         public void ServerPipeListenForConnections()
         {
             var loop = new UvLoopHandle(_logger);
             var serverListenPipe = new UvPipeHandle(_logger);
 
             loop.Init(_uv);
-            serverListenPipe.Init(loop, false);
+            serverListenPipe.Init(loop, (a, b) => { }, false);
             serverListenPipe.Bind(@"\\.\pipe\ServerPipeListenForConnections");
             serverListenPipe.Listen(128, (_1, status, error, _2) =>
             {
                 var serverConnectionPipe = new UvPipeHandle(_logger);
-                serverConnectionPipe.Init(loop, true);
+                serverConnectionPipe.Init(loop, (a, b) => { }, true);
                 try
                 {
                     serverListenPipe.Accept(serverConnectionPipe);
@@ -92,7 +94,7 @@ namespace Microsoft.AspNetCore.Server.KestrelTests
                 var connect = new UvConnectRequest(new KestrelTrace(new TestKestrelTrace()));
 
                 loop2.Init(_uv);
-                clientConnectionPipe.Init(loop2, true);
+                clientConnectionPipe.Init(loop2, (a, b) => { }, true);
                 connect.Init(loop2);
                 connect.Connect(clientConnectionPipe, @"\\.\pipe\ServerPipeListenForConnections", (_1, status, error, _2) =>
                 {
@@ -120,6 +122,7 @@ namespace Microsoft.AspNetCore.Server.KestrelTests
         }
 
 
+        [Fact(Skip = "Test needs to be fixed (UvException: Error -4088 EAGAIN resource temporarily unavailable from accept)")]
         public void ServerPipeDispatchConnections()
         {
             var pipeName = @"\\.\pipe\ServerPipeDispatchConnections" + Guid.NewGuid().ToString("n");
@@ -132,12 +135,12 @@ namespace Microsoft.AspNetCore.Server.KestrelTests
             var serverConnectionTcpDisposedEvent = new ManualResetEvent(false);
 
             var serverListenPipe = new UvPipeHandle(_logger);
-            serverListenPipe.Init(loop, false);
+            serverListenPipe.Init(loop, (a, b) => { }, false);
             serverListenPipe.Bind(pipeName);
             serverListenPipe.Listen(128, (_1, status, error, _2) =>
             {
                 serverConnectionPipe = new UvPipeHandle(_logger);
-                serverConnectionPipe.Init(loop, true);
+                serverConnectionPipe.Init(loop, (a, b) => { }, true);
                 try
                 {
                     serverListenPipe.Accept(serverConnectionPipe);
@@ -152,13 +155,13 @@ namespace Microsoft.AspNetCore.Server.KestrelTests
             }, null);
 
             var serverListenTcp = new UvTcpHandle(_logger);
-            serverListenTcp.Init(loop);
+            serverListenTcp.Init(loop, (a, b) => { });
             var address = ServerAddress.FromUrl("http://localhost:54321/");
             serverListenTcp.Bind(address);
             serverListenTcp.Listen(128, (_1, status, error, _2) =>
             {
                 var serverConnectionTcp = new UvTcpHandle(_logger);
-                serverConnectionTcp.Init(loop);
+                serverConnectionTcp.Init(loop, (a, b) => { });
                 serverListenTcp.Accept(serverConnectionTcp);
 
                 serverConnectionPipeAcceptedEvent.WaitOne();
@@ -188,7 +191,7 @@ namespace Microsoft.AspNetCore.Server.KestrelTests
                 var connect = new UvConnectRequest(new KestrelTrace(new TestKestrelTrace()));
 
                 loop2.Init(_uv);
-                clientConnectionPipe.Init(loop2, true);
+                clientConnectionPipe.Init(loop2, (a, b) => { }, true);
                 connect.Init(loop2);
                 connect.Connect(clientConnectionPipe, pipeName, (_1, status, error, _2) =>
                 {
@@ -208,7 +211,7 @@ namespace Microsoft.AspNetCore.Server.KestrelTests
                                 return;
                             }
                             var clientConnectionTcp = new UvTcpHandle(_logger);
-                            clientConnectionTcp.Init(loop2);
+                            clientConnectionTcp.Init(loop2, (a, b) => { });
                             clientConnectionPipe.Accept(clientConnectionTcp);
                             var buf2 = loop2.Libuv.buf_init(Marshal.AllocHGlobal(64), 64);
                             clientConnectionTcp.ReadStart(

test/Microsoft.AspNetCore.Server.KestrelTests/NetworkingTests.cs

@@ -47,7 +47,7 @@ namespace Microsoft.AspNetCore.Server.KestrelTests
             {
                 called = true;
                 trigger.Dispose();
-            });
+            }, (a, b) => { });
             trigger.Send();
             loop.Run();
             loop.Dispose();
@@ -60,7 +60,7 @@ namespace Microsoft.AspNetCore.Server.KestrelTests
             var loop = new UvLoopHandle(_logger);
             loop.Init(_uv);
             var tcp = new UvTcpHandle(_logger);
-            tcp.Init(loop);
+            tcp.Init(loop, (a, b) => { });
             var address = ServerAddress.FromUrl("http://localhost:0/");
             tcp.Bind(address);
             tcp.Dispose();
@@ -75,14 +75,14 @@ namespace Microsoft.AspNetCore.Server.KestrelTests
             var loop = new UvLoopHandle(_logger);
             loop.Init(_uv);
             var tcp = new UvTcpHandle(_logger);
-            tcp.Init(loop);
+            tcp.Init(loop, (a, b) => { });
             var port = TestServer.GetNextPort();
             var address = ServerAddress.FromUrl($"http://localhost:{port}/");
             tcp.Bind(address);
             tcp.Listen(10, (stream, status, error, state) =>
             {
                 var tcp2 = new UvTcpHandle(_logger);
-                tcp2.Init(loop);
+                tcp2.Init(loop, (a, b) => { });
                 stream.Accept(tcp2);
                 tcp2.Dispose();
                 stream.Dispose();
@@ -117,15 +117,14 @@ namespace Microsoft.AspNetCore.Server.KestrelTests
             var loop = new UvLoopHandle(_logger);
             loop.Init(_uv);
             var tcp = new UvTcpHandle(_logger);
-            tcp.Init(loop);
+            tcp.Init(loop, (a, b) => { });
             var port = TestServer.GetNextPort();
             var address = ServerAddress.FromUrl($"http://localhost:{port}/");
             tcp.Bind(address);
             tcp.Listen(10, (_, status, error, state) =>
             {
-                Console.WriteLine("Connected");
                 var tcp2 = new UvTcpHandle(_logger);
-                tcp2.Init(loop);
+                tcp2.Init(loop, (a, b) => { });
                 tcp.Accept(tcp2);
                 var data = Marshal.AllocCoTaskMem(500);
                 tcp2.ReadStart(
@@ -140,7 +139,6 @@ namespace Microsoft.AspNetCore.Server.KestrelTests
                     null);
                 tcp.Dispose();
             }, null);
-            Console.WriteLine("Task.Run");
             var t = Task.Run(async () =>
             {
                 var socket = new Socket(
@@ -179,15 +177,14 @@ namespace Microsoft.AspNetCore.Server.KestrelTests
             var loop = new UvLoopHandle(_logger);
             loop.Init(_uv);
             var tcp = new UvTcpHandle(_logger);
-            tcp.Init(loop);
+            tcp.Init(loop, (a, b) => { });
             var port = TestServer.GetNextPort();
             var address = ServerAddress.FromUrl($"http://localhost:{port}/");
             tcp.Bind(address);
             tcp.Listen(10, (_, status, error, state) =>
             {
-                Console.WriteLine("Connected");
                 var tcp2 = new UvTcpHandle(_logger);
-                tcp2.Init(loop);
+                tcp2.Init(loop, (a, b) => { });
                 tcp.Accept(tcp2);
                 var data = Marshal.AllocCoTaskMem(500);
                 tcp2.ReadStart(
@@ -227,7 +224,6 @@ namespace Microsoft.AspNetCore.Server.KestrelTests
                     null);
                 tcp.Dispose();
             }, null);
-            Console.WriteLine("Task.Run");
             var t = Task.Run(async () =>
             {
                 var socket = new Socket(
@@ -268,9 +264,6 @@ namespace Microsoft.AspNetCore.Server.KestrelTests
 #else
                     var count = await socket.ReceiveAsync(new[] { buffer }, SocketFlags.None);
 #endif
-                    Console.WriteLine("count {0} {1}",
-                        count,
-                        System.Text.Encoding.ASCII.GetString(buffer.Array, 0, count));
                     if (count <= 0) break;
                 }
                 socket.Dispose();