增加CTA模块中，策略对于当前运行环境的识别函数

vn.trader/ctaAlgo/ctaBacktesting.py

@@ -42,6 +42,9 @@ class BacktestingEngine(object):
         self.stopOrderDict = {}             # 停止单撤销后不会从本字典中删除
         self.workingStopOrderDict = {}      # 停止单撤销后会从本字典中删除
         
+        # 引擎类型为回测
+        self.engineType = ENGINETYPE_BACKTESTING
+        
         # 回测相关
         self.strategy = None        # 回测策略
         self.mode = self.BAR_MODE   # 回测模式，默认为K线

vn.trader/ctaAlgo/ctaBase.py

@@ -33,6 +33,9 @@ TICK_DB_NAME = 'VnTrader_Tick_Db'
 DAILY_DB_NAME = 'VnTrader_Daily_Db'
 MINUTE_DB_NAME = 'VnTrader_1Min_Db'
 
+# 引擎类型，用于区分当前策略的运行环境
+ENGINETYPE_BACKTESTING = 'backtesting'  # 回测
+ENGINETYPE_TRADING = 'trading'          # 实盘
 
 # CTA引擎中涉及的数据类定义
 from vtConstant import EMPTY_UNICODE, EMPTY_STRING, EMPTY_FLOAT, EMPTY_INT

vn.trader/ctaAlgo/ctaEngine.py

@@ -70,6 +70,9 @@ class CtaEngine(object):
         # key为vtSymbol，value为PositionBuffer对象
         self.posBufferDict = {}
         
+        # 引擎类型为实盘
+        self.engineType = ENGINETYPE_TRADING
+        
         # 注册事件监听
         self.registerEvent()
  

vn.trader/ctaAlgo/ctaTemplate.py

@@ -165,4 +165,9 @@ class CtaTemplate(object):
     def putEvent(self):
         """发出策略状态变化事件"""
         self.ctaEngine.putStrategyEvent(self.name)
+        
+    #----------------------------------------------------------------------
+    def getEngineType(self):
+        """查询当前运行的环境"""
+        return self.ctaEngine.engineType