Microsoft.AspNet.Server.Kestrel.Networking.UvStreamHandle.Listen C# (CSharp) Метод

        public void Listen(int backlog, Action<UvStreamHandle, int, Exception, object> callback, object state)
        {
            if (_listenVitality.IsAllocated)
            {
                throw new InvalidOperationException("TODO: Listen may not be called more than once");
            }
            try
            {
                _listenCallback = callback;
                _listenState = state;
                _listenVitality = GCHandle.Alloc(this, GCHandleType.Normal);
                _uv.listen(this, backlog, _uv_connection_cb);
            }
            catch
            {
                _listenCallback = null;
                _listenState = null;
                if (_listenVitality.IsAllocated)
                {
                    _listenVitality.Free();
                }
                throw;
            }
        }