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@ -7,207 +7,174 @@ using ZeroLevel.Services.Serialization;
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namespace ZeroLevel.Network
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{
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public class ZSocketClient
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: ZBaseNetwork, IZTransport
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public class SocketClient
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: BaseSocket, ISocketClient
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{
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#region Private
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private Socket _clientSocket;
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private NetworkStream _stream;
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private FrameParser _parser = new FrameParser();
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private Thread _sendThread;
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private long _heartbeat_key;
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private long _heartbeat_key = -1;
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private long _last_rw_time = DateTime.UtcNow.Ticks;
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private readonly byte[] _buffer = new byte[DEFAULT_RECEIVE_BUFFER_SIZE];
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private readonly object _reconnection_lock = new object();
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private readonly BlockingCollection<Frame> _send_queue = new BlockingCollection<Frame>();
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private readonly BlockingCollection<SendInfo> _send_queue = new BlockingCollection<SendInfo>();
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private readonly RequestBuffer _requests = new RequestBuffer();
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private int _current_heartbeat_period_in_ms = 0;
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private bool _socket_freezed = false; // используется для связи сервер-клиент, запрещает пересоздание сокета
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private struct SendInfo
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{
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public bool isRequest;
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public int identity;
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public byte[] data;
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}
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#endregion Private
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public event EventHandler<Frame> OnServerMessage = (_, __) => { };
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public event Action OnConnect = () => { };
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public event Action OnDisconnect = () => { };
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public IPEndPoint Endpoint { get; }
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public bool IsEmptySendQueue { get { return _send_queue.Count == 0; } }
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public ZSocketClient(IPEndPoint ep)
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public SocketClient(IPEndPoint ep)
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{
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Endpoint = ep;
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_parser.OnIncomingFrame += _parser_OnIncomingFrame;
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_heartbeat_key = Sheduller.RemindEvery(TimeSpan.FromMilliseconds(HEARTBEAT_UPDATE_PERIOD_MS), Heartbeat);
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_parser.OnIncoming += _parser_OnIncoming;
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_sendThread = new Thread(SendFramesJob);
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_sendThread.IsBackground = true;
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_sendThread.Start();
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}
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public SocketClient(Socket socket)
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{
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_socket_freezed = true;
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_clientSocket = socket;
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Endpoint = (IPEndPoint)_clientSocket.RemoteEndPoint;
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_parser.OnIncoming += _parser_OnIncoming;
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_sendThread = new Thread(SendFramesJob);
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_sendThread.IsBackground = true;
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_sendThread.Start();
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}
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#region Private methods
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#region API
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public event Action<ISocketClient> OnConnect = (s) => { };
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public event Action<ISocketClient> OnDisconnect = (s) => { };
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public event Action<ISocketClient, byte[], int> OnIncomingData = (_, __, ___) => { };
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public IPEndPoint Endpoint { get; }
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private void Heartbeat()
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public void Request(Frame frame, Action<Frame> callback, Action<string> fail = null)
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{
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try
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if (frame == null) throw new ArgumentNullException(nameof(frame));
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if (frame != null && false == _send_queue.IsAddingCompleted)
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{
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EnsureConnection();
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}
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catch(Exception ex)
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while (_send_queue.Count >= MAX_SEND_QUEUE_SIZE)
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{
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Log.SystemError(ex, "ZSocketClient.Heartbeat()->EnsureConnection()");
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Broken();
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return;
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Thread.Sleep(50);
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}
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_requests.TestForTimeouts();
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try
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int id;
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var sendInfo = new SendInfo
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{
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Request(FrameBuilder.BuildFrame(DEFAULT_PING_INBOX), r => { });
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isRequest = true,
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data = NetworkPacketFactory.Reqeust(MessageSerializer.Serialize(frame), out id)
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};
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sendInfo.identity = id;
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_requests.RegisterForFrame(id, callback, fail);
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_send_queue.Add(sendInfo);
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frame.Release();
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}
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catch (Exception ex)
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{
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Log.SystemError(ex, "ZSocketClient.Heartbeat()->Request()");
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}
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var diff_request_ms = ((DateTime.UtcNow.Ticks - _last_rw_time) / TimeSpan.TicksPerMillisecond);
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if (diff_request_ms > (HEARTBEAT_UPDATE_PERIOD_MS * 2))
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public void ForceConnect()
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{
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var port = (_clientSocket.LocalEndPoint as IPEndPoint)?.Port;
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Log.Debug($"[ZClient] server disconnected, because last data was more thas {diff_request_ms} ms ago. Client port {port}");
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Broken();
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}
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EnsureConnection();
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}
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private void _parser_OnIncomingFrame(Frame frame)
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public void Send(Frame frame)
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{
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if (frame == null || frame.Inbox == null) return;
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_last_rw_time = DateTime.UtcNow.Ticks;
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if (frame.IsRequest)
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if (frame == null) throw new ArgumentNullException(nameof(frame));
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if (frame != null && false == _send_queue.IsAddingCompleted)
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{
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// Got response on request with id = packet_id
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try
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while (_send_queue.Count >= MAX_SEND_QUEUE_SIZE)
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{
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_requests.Success(frame.FrameId, frame);
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Thread.Sleep(50);
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}
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catch (Exception ex)
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_send_queue.Add(new SendInfo
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{
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Log.SystemError(ex, "ZSocketClient._parser_OnIncomingFrame()->_requests.Success(). Fault handle response");
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isRequest = false,
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identity = 0,
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data = NetworkPacketFactory.Message(MessageSerializer.Serialize(frame))
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});
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frame.Release();
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}
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}
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else
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public void Response(byte[] data, int identity)
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{
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// Got server comand
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if (frame.Inbox.Equals(DEFAULT_PING_INBOX, StringComparison.Ordinal))
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if (data == null) throw new ArgumentNullException(nameof(data));
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if (false == _send_queue.IsAddingCompleted)
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{
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_last_rw_time = DateTime.UtcNow.Ticks;
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}
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else
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while (_send_queue.Count >= MAX_SEND_QUEUE_SIZE)
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{
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try
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{
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OnServerMessage?.Invoke(this, frame);
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Thread.Sleep(50);
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}
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catch (Exception ex)
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_send_queue.Add(new SendInfo
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{
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Log.SystemError(ex, "ZSocketClient._parser_OnIncomingFrame()->OnServerMessage?.Invoke(). Fault handle server message");
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}
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}
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isRequest = false,
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identity = 0,
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data = NetworkPacketFactory.Response(data, identity)
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});
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}
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frame?.Release();
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}
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private void ReceiveAsyncCallback(IAsyncResult ar)
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{
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try
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public void UseKeepAlive(TimeSpan period)
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{
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EnsureConnection();
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var count = _stream.EndRead(ar);
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if (count > 0)
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if (_heartbeat_key != -1)
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{
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_parser.Push(_buffer, 0, count);
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_last_rw_time = DateTime.UtcNow.Ticks;
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}
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if (Status == ZTransportStatus.Working)
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{
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_stream.BeginRead(_buffer, 0, DEFAULT_RECEIVE_BUFFER_SIZE, ReceiveAsyncCallback, null);
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}
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Sheduller.Remove(_heartbeat_key);
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}
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catch (ObjectDisposedException)
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if (period != TimeSpan.Zero && period.TotalMilliseconds > MINIMUM_HEARTBEAT_UPDATE_PERIOD_MS)
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{
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/// Nothing
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_current_heartbeat_period_in_ms = (int)period.TotalMilliseconds;
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_heartbeat_key = Sheduller.RemindEvery(period, Heartbeat);
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}
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catch (Exception ex)
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else
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{
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Log.SystemError(ex, $"[ZSocketServerClient] Error read data");
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Broken();
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OnDisconnect();
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_current_heartbeat_period_in_ms = 0;
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}
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}
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#endregion
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private void SendFramesJob()
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{
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Frame frame = null;
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while (Status != ZTransportStatus.Disposed)
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{
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if (_send_queue.IsCompleted)
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{
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return;
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}
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if (Status != ZTransportStatus.Working)
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{
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Thread.Sleep(100);
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try
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{
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EnsureConnection();
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}
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catch (Exception ex)
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#region Private methods
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private void _parser_OnIncoming(FrameType type, int identity, byte[] data)
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{
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Log.SystemError(ex, "[ZSocketClient] Send next frame fault");
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}
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if (Status == ZTransportStatus.Disposed) return;
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continue;
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}
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try
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{
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frame = _send_queue.Take();
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var data = NetworkStreamFastObfuscator.PrepareData(MessageSerializer.Serialize(frame));
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if (data != null && data.Length > 0)
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switch (type)
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{
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if (frame.IsRequest)
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{
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_requests.StartSend(frame.FrameId);
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}
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_stream.Write(data, 0, data.Length);
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case FrameType.KeepAlive:
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_last_rw_time = DateTime.UtcNow.Ticks;
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//NetworkStats.Send(data);
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break;
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case FrameType.Message:
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case FrameType.Request:
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OnIncomingData(this, data, identity);
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break;
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case FrameType.Response:
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_requests.Success(identity, MessageSerializer.Deserialize<Frame>(data));
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break;
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}
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}
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catch (Exception ex)
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{
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Log.SystemError(ex, $"[ZSocketServerClient] Backward send error.");
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Broken();
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OnDisconnect();
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}
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finally
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{
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frame?.Release();
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Log.Error(ex, $"[SocketClient._parser_OnIncoming]");
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}
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}
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}
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#endregion Private methods
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#region API
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private bool TryConnect()
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{
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if (Status == ZTransportStatus.Working)
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if (Status == SocketClientStatus.Working)
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{
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return true;
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}
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if (Status == ZTransportStatus.Disposed)
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if (Status == SocketClientStatus.Disposed)
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{
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return false;
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}
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@ -235,24 +202,28 @@ namespace ZeroLevel.Network
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}
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catch (Exception ex)
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{
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Log.SystemError(ex, $"[ZSocketClient] Connection fault");
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Log.SystemError(ex, $"[SocketClient.TryConnect] Connection fault");
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Broken();
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return false;
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}
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Working();
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OnConnect();
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OnConnect(this);
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return true;
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}
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public void EnsureConnection()
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{
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if (_socket_freezed)
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{
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return;
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}
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lock (_reconnection_lock)
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{
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if (Status == ZTransportStatus.Disposed)
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if (Status == SocketClientStatus.Disposed)
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{
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throw new ObjectDisposedException("connection");
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}
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if (Status != ZTransportStatus.Working)
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if (Status != SocketClientStatus.Working)
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{
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if (false == TryConnect())
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{
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@ -262,47 +233,112 @@ namespace ZeroLevel.Network
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}
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}
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public void Send(Frame frame)
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private void Heartbeat()
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{
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try
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{
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if (frame == null) throw new ArgumentNullException(nameof(frame));
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EnsureConnection();
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if (frame != null && false == _send_queue.IsAddingCompleted)
|
|
|
|
|
}
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
{
|
|
|
|
|
while (_send_queue.Count >= ZBaseNetwork.MAX_SEND_QUEUE_SIZE)
|
|
|
|
|
Log.SystemError(ex, "[SocketClient.Heartbeat.EnsureConnection]");
|
|
|
|
|
Broken();
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
_requests.TestForTimeouts();
|
|
|
|
|
try
|
|
|
|
|
{
|
|
|
|
|
Thread.Sleep(50);
|
|
|
|
|
_send_queue.Add(new SendInfo
|
|
|
|
|
{
|
|
|
|
|
identity = 0,
|
|
|
|
|
isRequest = false,
|
|
|
|
|
data = NetworkPacketFactory.KeepAliveMessage()
|
|
|
|
|
});
|
|
|
|
|
}
|
|
|
|
|
_send_queue.Add(frame);
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
{
|
|
|
|
|
Log.SystemError(ex, "[SocketClient.Heartbeat.Request]");
|
|
|
|
|
}
|
|
|
|
|
var diff_request_ms = ((DateTime.UtcNow.Ticks - _last_rw_time) / TimeSpan.TicksPerMillisecond);
|
|
|
|
|
if (diff_request_ms > (_current_heartbeat_period_in_ms * 2))
|
|
|
|
|
{
|
|
|
|
|
var port = (_clientSocket.LocalEndPoint as IPEndPoint)?.Port;
|
|
|
|
|
Log.Debug($"[SocketClient.Heartbeat] server disconnected, because last data was more thas {diff_request_ms} ms ago. Client port {port}");
|
|
|
|
|
Broken();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
public void Request(Frame frame, Action<Frame> callback, Action<string> fail = null)
|
|
|
|
|
private void ReceiveAsyncCallback(IAsyncResult ar)
|
|
|
|
|
{
|
|
|
|
|
if (frame == null) throw new ArgumentNullException(nameof(frame));
|
|
|
|
|
try
|
|
|
|
|
{
|
|
|
|
|
EnsureConnection();
|
|
|
|
|
var count = _stream.EndRead(ar);
|
|
|
|
|
if (count > 0)
|
|
|
|
|
{
|
|
|
|
|
_parser.Push(_buffer, count);
|
|
|
|
|
_last_rw_time = DateTime.UtcNow.Ticks;
|
|
|
|
|
}
|
|
|
|
|
if (Status == SocketClientStatus.Working)
|
|
|
|
|
{
|
|
|
|
|
_stream.BeginRead(_buffer, 0, DEFAULT_RECEIVE_BUFFER_SIZE, ReceiveAsyncCallback, null);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
catch (ObjectDisposedException)
|
|
|
|
|
{
|
|
|
|
|
/// Nothing
|
|
|
|
|
}
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
{
|
|
|
|
|
fail?.Invoke(ex.Message);
|
|
|
|
|
Log.SystemError(ex, $"[SocketClient.ReceiveAsyncCallback] Error read data");
|
|
|
|
|
Broken();
|
|
|
|
|
OnDisconnect(this);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
private void SendFramesJob()
|
|
|
|
|
{
|
|
|
|
|
SendInfo frame;
|
|
|
|
|
while (Status != SocketClientStatus.Disposed)
|
|
|
|
|
{
|
|
|
|
|
if (_send_queue.IsCompleted)
|
|
|
|
|
{
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
_requests.RegisterForFrame(frame, callback, fail);
|
|
|
|
|
if (Status != SocketClientStatus.Working)
|
|
|
|
|
{
|
|
|
|
|
Thread.Sleep(100);
|
|
|
|
|
try
|
|
|
|
|
{
|
|
|
|
|
EnsureConnection();
|
|
|
|
|
}
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
{
|
|
|
|
|
Log.SystemError(ex, "[SocketClient.SendFramesJob] Send next frame fault");
|
|
|
|
|
}
|
|
|
|
|
if (Status == SocketClientStatus.Disposed) return;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
try
|
|
|
|
|
{
|
|
|
|
|
Send(frame);
|
|
|
|
|
frame = _send_queue.Take();
|
|
|
|
|
if (frame.isRequest)
|
|
|
|
|
{
|
|
|
|
|
_requests.StartSend(frame.identity);
|
|
|
|
|
}
|
|
|
|
|
_stream.Write(frame.data, 0, frame.data.Length);
|
|
|
|
|
_last_rw_time = DateTime.UtcNow.Ticks;
|
|
|
|
|
}
|
|
|
|
|
catch (Exception ex)
|
|
|
|
|
{
|
|
|
|
|
fail?.Invoke(ex.Message);
|
|
|
|
|
Log.SystemError(ex, $"[SocketClient.SendFramesJob] Backward send error.");
|
|
|
|
|
Broken();
|
|
|
|
|
OnDisconnect();
|
|
|
|
|
Log.SystemError(ex, $"[ZSocketClient] Request error. Frame '{frame.FrameId}'. Inbox '{frame.Inbox}'");
|
|
|
|
|
OnDisconnect(this);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endregion API
|
|
|
|
|
#endregion
|
|
|
|
|
|
|
|
|
|
#region Helper
|
|
|
|
|
|
|
|
|
|
@ -318,9 +354,9 @@ namespace ZeroLevel.Network
|
|
|
|
|
|
|
|
|
|
public override void Dispose()
|
|
|
|
|
{
|
|
|
|
|
if (Status == ZTransportStatus.Working)
|
|
|
|
|
if (Status == SocketClientStatus.Working)
|
|
|
|
|
{
|
|
|
|
|
OnDisconnect();
|
|
|
|
|
OnDisconnect(this);
|
|
|
|
|
}
|
|
|
|
|
Disposed();
|
|
|
|
|
Sheduller.Remove(_heartbeat_key);
|
a.bozhenov
6 years ago