private Task SendRequestAsync(WsTradeMessageRequest msg, Action <int, object> action, CancellationToken cancellationToken)
{
if (this._ws == null || this._ws.State != WebSocketState.Open)
{
throw new InvalidOperationException("websocket is not open");
}
try
{
_request_callback[msg.ReqID] = action;
return(this._ws?.SendAsync(new ArraySegment <byte>(msg.GetSigneBuffer(_apikey, _apisecret)), WebSocketMessageType.Text, true, cancellationToken));
}
catch (Exception ex)
{
_request_callback.Remove(msg.ReqID);
throw ex;
}
}
/// <summary>
/// 与服务器比对时间
/// </summary>
/// <param name="cb"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public async Task REQ_TimeAsync(Action <int, long> cb, CancellationToken cancellationToken)
{
long localtm = DateTimeOffset.Now.ToUnixTimeMilliseconds();
var req = new WsTradeMessageRequest("Time", localtm);
await this.SendRequestAsync(req, (code, data) =>
{
// {"code":0,"data":{"data":"1545808556560","time":1545808556646},"rid":"14"}
long delta = 0;
if (code == 0)
{
var obj = data as Newtonsoft.Json.Linq.JObject;
if (obj != null && obj.ContainsKey("time"))
{
var servertm = obj["time"].ToObject <long>();
delta = servertm - localtm;
}
}
cb(code, delta);
},
cancellationToken);
}
