防止对线路重复执行挂机操作

FsLink/OperationReactor.cpp

@@ -200,8 +200,16 @@ bool COperationReactor::__procOpHangUp( LONG Instance, ULONG ResID, LineOpParam*
 
 
 	// 如果线路正在执行其它操作
-	if(pChan->currOp() != NULL) 
+	if (pChan->currOp() != NULL)
+	{
+		if (pChan->currOp()->type() == LINE_OP_HANG_UP)
+		{
+			LOGGER(LOG_LEVEL_NORMAL, _T("{OperationReactor}: 当前线路正在执行挂机"));
+			return false; // 使任务删除
+		}
+		LOGGER(LOG_LEVEL_NORMAL, _T("{OperationReactor}: 执行挂机, 当前线路绑定操作, Operation = %d"), pChan->currOp()->type());
 		return pChan->currOp()->hangup(Instance);
+	}
 		
 	if (pChan->state() == CHAN_LOGIC_STATE_FREE || pChan->state() == CHAN_LOGIC_STATE_DISABLED)
 	{