Calculate the sign of the feature

Start RpcServer

Start event engine to process events and generate timer events.

Start the background binding worker.

Stop RpcClient

Stop RpcServer

Stop event engine.

Subscribe tick data update.

处理合约推送并订阅行情 当系统接收到合约信息后，根据预设的交易所和品种过滤条件， 自动为符合条件的合约添加行情录制任务。 参数: event: 包含合约信息的事件对象

Calculate ATR indicator by contract

Calculate RSI indicator by contract

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