public async ValueTask <ConnectionContext> ConnectAsync(EndPoint endpoint, CancellationToken cancellationToken)
        {
            var socket = new Socket(SocketType.Stream, ProtocolType.Tcp)
            {
                LingerState = new LingerOption(true, 0),
                NoDelay     = true
            };

            socket.EnableFastPath();
            var completion = new SingleUseSocketAsyncEventArgs
            {
                RemoteEndPoint = endpoint
            };

            if (!socket.ConnectAsync(completion))
            {
                completion.Complete();
            }

            await completion;

            if (completion.SocketError != SocketError.Success)
            {
                throw new SocketConnectionException($"Unable to connect to {endpoint}. Error: {completion.SocketError}");
            }

            var scheduler  = this.schedulers.GetScheduler();
            var connection = new SocketConnection(socket, this.memoryPool, scheduler, this.trace);

            connection.Start();
            return(connection);
        }
Пример #2
0
        public async ValueTask <ConnectionContext> ConnectAsync(EndPoint endpoint, CancellationToken cancellationToken)
        {
            var socket = new Socket(endpoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp)
            {
                LingerState = new LingerOption(true, 0),
                NoDelay     = true
            };

            socket.EnableFastPath();
            using var completion = new SingleUseSocketAsyncEventArgs
                  {
                      RemoteEndPoint = endpoint
                  };

            if (socket.ConnectAsync(completion))
            {
                using (cancellationToken.Register(s => Socket.CancelConnectAsync((SingleUseSocketAsyncEventArgs)s), completion))
                {
                    await completion.Task;
                }
            }

            if (completion.SocketError != SocketError.Success)
            {
                if (completion.SocketError == SocketError.OperationAborted)
                {
                    cancellationToken.ThrowIfCancellationRequested();
                }
                throw new SocketConnectionException($"Unable to connect to {endpoint}. Error: {completion.SocketError}");
            }

            var scheduler  = this.schedulers.GetScheduler();
            var connection = new SocketConnection(socket, this.memoryPool, scheduler, this.trace);

            connection.Start();
            return(connection);
        }