[增强] 增加策略持仓，股票等事件

vnpy/trader/event.py

@@ -5,10 +5,25 @@ Event type string used in VN Trader.
 from vnpy.event import EVENT_TIMER  # noqa
 
 EVENT_TICK = "eTick."
-EVENT_BAR = "eBar."
 EVENT_TRADE = "eTrade."
 EVENT_ORDER = "eOrder."
 EVENT_POSITION = "ePosition."
 EVENT_ACCOUNT = "eAccount."
 EVENT_CONTRACT = "eContract."
 EVENT_LOG = "eLog"
+
+# 扩展
+EVENT_BAR = "eBar."
+EVENT_STRATEGY_POS = "eStrategyPos."
+
+# 拓展， 支持股票账号中，历史交成交/历史委托/资金流水
+EVENT_HISTORY_TRADE = 'eHistoryTrade.'
+EVENT_HISTORY_ORDER = 'eHistoryOrder.'
+EVENT_FUNDS_FLOW = 'eFundsFlow.'
+
+
+# 扩展，支持系统发出得异常事件
+EVENT_ERROR = 'eError'
+EVENT_WARNING = 'eWarning'
+EVENT_CRITICAL = 'eCritical'
+