尝试了一下跟踪其他软件手动下单，订单在vnpy中的处理过程，cta_gateway.py -->gateway.py-->eventengine，这三个位置都用log打印出来，看看发生了什么。
cta_gateway.py中，添加打印如下：
def onRtnOrder(self, data: dict):
"""
Callback of order status update.
"""
symbol = data["InstrumentID"]
exchange = symbol_exchange_map.get(symbol, "")
if not exchange:
self.order_data.append(data)
return
frontid = data["FrontID"]
sessionid = data["SessionID"]
order_ref = data["OrderRef"]
orderid = f"{frontid}_{sessionid}_{order_ref}"
order = OrderData(
symbol=symbol,
exchange=exchange,
orderid=orderid,
type=ORDERTYPE_CTP2VT[data["OrderPriceType"]],
direction=DIRECTION_CTP2VT[data["Direction"]],
offset=OFFSET_CTP2VT[data["CombOffsetFlag"]],
price=data["LimitPrice"],
volume=data["VolumeTotalOriginal"],
traded=data["VolumeTraded"],
status=STATUS_CTP2VT[data["OrderStatus"]],
time=data["InsertTime"],
gateway_name=self.gateway_name
)
self.gateway.on_order(order)
self.sysid_orderid_map[data["OrderSysID"]] = orderid
# 无问西东
logger.info(f"gateway.on_order:{order}")
logger.info(f"data["OrderSysID"]:{data["OrderSysID"]}")gateway.py中 on_event ，添加打印如下：
def on_event(self, type: str, data: Any = None) -> None:
"""
General event push.
"""
event = Event(type, data)
self.event_engine.put(event)
# 无问西东
logger.info(f"gateway.py on_event event.type:{event.type}")
logger.info(f"gateway.py on_event event.data:{event.data}")eventengine中，添加打印如下：
def _run(self) -> None:
"""
Get event from queue and then process it.
"""
while self._active:
try:
event = self._queue.get(block=True, timeout=1)
# 无问西东
logger.info(f"_run event_engine event.type:{event.type}")
logger.info(f"_run event_engine event.data:{event.data}")
self._process(event)
except Empty:
pass1、请问在gateway.on_order函数中，为什么要推送两次？一次是EVENT_ORDER，一次是EVENT_ORDER + order.vt_orderid，两个的作用分别是什么？
def on_order(self, order: OrderData) -> None:
"""
Order event push.
Order event of a specific vt_orderid is also pushed.
"""
self.on_event(EVENT_ORDER, order)
self.on_event(EVENT_ORDER + order.vt_orderid, order)2、打印出来的结果如下，会发现EVENT_ORDER的event在eventengine中的_run中的队列中被提取掉，并被后续的mainengine处理，而EVENT_ORDER + order.vt_orderid对应的事件在_run函数中没有被提取，也就是没有被打印出来，导致后续所有的下单（包括vnpy自带的下单控件下的单就没有响应，可能是跟队列中，有没被提取的事件导致阻塞有关）。请问为什么平时vnpy自带的下单控件下单对应的EVENT_ORDER + order.vt_orderid事件能被处理，而用其他软件下单对应的EVENT_ORDER + order.vt_orderid事件不能被提取？：
2021-03-10 22:58:33.213 | INFO | vnpy.trader.gateway:on_event:99 - gateway.py on_event event.type:eOrder.
2021-03-10 22:58:33.213 | INFO | vnpy.event.engine:_run:66 - _run event_engine event.type:eOrder.
2021-03-10 22:58:33.227 | INFO | vnpy.trader.gateway:on_event:100 - gateway.py on_event event.data:OrderData(gateway_name='CTP', symbol='m2105', exchange=<Exchange.DCE: 'DCE'>, orderid='21_-647510950_000000000056', type=<OrderType.LIMIT: '限价'>, direction=<Direction.SHORT: '空'>, offset=<Offset.OPEN: '开'>, price=3215.0, volume=1, traded=0, status=<Status.SUBMITTING: '提交中'>, datetime=datetime.datetime(2021, 3, 10, 22, 58, 32, tzinfo=<DstTzInfo 'Asia/Shanghai' CST+8:00:00 STD>), reference='')
2021-03-10 22:58:33.227 | INFO | vnpy.event.engine:_run:67 - _run event_engine event.data:OrderData(gateway_name='CTP', symbol='m2105', exchange=<Exchange.DCE: 'DCE'>, orderid='21_-647510950_000000000056', type=<OrderType.LIMIT: '限价'>, direction=<Direction.SHORT: '空'>, offset=<Offset.OPEN: '开'>, price=3215.0, volume=1, traded=0, status=<Status.SUBMITTING: '提交中'>, datetime=datetime.datetime(2021, 3, 10, 22, 58, 32, tzinfo=<DstTzInfo 'Asia/Shanghai' CST+8:00:00 STD>), reference='')
2021-03-10 22:58:33.227 | INFO | vnpy.trader.gateway:on_event:99 - gateway.py on_event event.type:eOrder.CTP.21_-647510950_000000000056
2021-03-10 22:58:33.227 | INFO | vnpy.trader.engine:process_order_event:400 - mainengine event.type:eOrder.
2021-03-10 22:58:33.227 | INFO | vnpy.trader.gateway:on_event:100 - gateway.py on_event event.data:OrderData(gateway_name='CTP', symbol='m2105', exchange=<Exchange.DCE: 'DCE'>, orderid='21_-647510950_000000000056', type=<OrderType.LIMIT: '限价'>, direction=<Direction.SHORT: '空'>, offset=<Offset.OPEN: '开'>, price=3215.0, volume=1, traded=0, status=<Status.SUBMITTING: '提交中'>, datetime=datetime.datetime(2021, 3, 10, 22, 58, 32, tzinfo=<DstTzInfo 'Asia/Shanghai' CST+8:00:00 STD>), reference='')
2021-03-10 22:58:33.227 | INFO | vnpy.trader.engine:process_order_event:401 - mainengine event.data:OrderData(gateway_name='CTP', symbol='m2105', exchange=<Exchange.DCE: 'DCE'>, orderid='21_-647510950_000000000056', type=<OrderType.LIMIT: '限价'>, direction=<Direction.SHORT: '空'>, offset=<Offset.OPEN: '开'>, price=3215.0, volume=1, traded=0, status=<Status.SUBMITTING: '提交中'>, datetime=datetime.datetime(2021, 3, 10, 22, 58, 32, tzinfo=<DstTzInfo 'Asia/Shanghai' CST+8:00:00 STD>), reference='')
2021-03-10 22:58:33.243 | INFO | vnpy.app.cta_strategy.engine:process_order_event:178 - cta_engine event.type:eOrder.
2021-03-10 22:58:33.243 | INFO | vnpy.app.cta_strategy.engine:process_order_event:179 - cta_engine event.data:OrderData(gateway_name='CTP', symbol='m2105', exchange=<Exchange.DCE: 'DCE'>, orderid='21_-647510950_000000000056', type=<OrderType.LIMIT: '限价'>, direction=<Direction.SHORT: '空'>, offset=<Offset.OPEN: '开'>, price=3215.0, volume=1, traded=0, status=<Status.SUBMITTING: '提交中'>, datetime=datetime.datetime(2021, 3, 10, 22, 58, 32, tzinfo=<DstTzInfo 'Asia/Shanghai' CST+8:00:00 STD>), reference='')
2021-03-10 22:58:33.259 | INFO | vnpy.trader.gateway:on_event:99 - gateway.py on_event event.type:eOrder.
2021-03-10 22:58:33.259 | INFO | vnpy.trader.gateway:on_event:100 - gateway.py on_event event.data:OrderData(gateway_name='CTP', symbol='m2105', exchange=<Exchange.DCE: 'DCE'>, orderid='21_-647510950_000000000056', type=<OrderType.LIMIT: '限价'>, direction=<Direction.SHORT: '空'>, offset=<Offset.OPEN: '开'>, price=3215.0, volume=1, traded=0, status=<Status.NOTTRADED: '未成交'>, datetime=datetime.datetime(2021, 3, 11, 22, 58, 32, tzinfo=<DstTzInfo 'Asia/Shanghai' CST+8:00:00 STD>), reference='')
2021-03-10 22:58:33.259 | INFO | vnpy.trader.gateway:on_event:99 - gateway.py on_event event.type:eOrder.CTP.21_-647510950_000000000056
2021-03-10 22:58:33.259 | INFO | vnpy.trader.gateway:on_event:100 - gateway.py on_event event.data:OrderData(gateway_name='CTP', symbol='m2105', exchange=<Exchange.DCE: 'DCE'>, orderid='21_-647510950_000000000056', type=<OrderType.LIMIT: '限价'>, direction=<Direction.SHORT: '空'>, offset=<Offset.OPEN: '开'>, price=3215.0, volume=1, traded=0, status=<Status.NOTTRADED: '未成交'>, datetime=datetime.datetime(2021, 3, 11, 22, 58, 32, tzinfo=<DstTzInfo 'Asia/Shanghai' CST+8:00:00 STD>), reference='')
