MME2 changes - Propped commits from openmme/paging branch. Added scripts
for code gen

Change-Id: Ie55032217232214ac8544ca76ea34335205329e4
diff --git a/src/stateMachineFwk/stateMachineEngine.cpp b/src/stateMachineFwk/stateMachineEngine.cpp
new file mode 100644
index 0000000..79bfa2c
--- /dev/null
+++ b/src/stateMachineFwk/stateMachineEngine.cpp
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2019, Infosys Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <iostream>
+#include <time.h>
+#include <msgBuffer.h>
+#include "stateMachineEngine.h"
+#include "controlBlock.h"
+#include "event.h"
+#include "state.h"
+#include "smTypes.h"
+extern "C"
+{
+    #include "log.h"
+}
+using namespace std;
+
+namespace SM
+{
+	StateMachineEngine::StateMachineEngine():
+		procQ_m()
+	{
+	}
+
+	
+	StateMachineEngine::~StateMachineEngine()
+	{
+	}
+
+	
+	StateMachineEngine* StateMachineEngine::Instance()
+	{
+		static StateMachineEngine SM;
+		return &SM;
+	}
+	
+	
+	bool StateMachineEngine::addCBToProcQ(ControlBlock* cb)
+	{
+            return procQ_m.push(cb);
+	}
+
+	void StateMachineEngine::run()
+	{
+		ControlBlock* cb = procQ_m.pop();
+
+		if(cb == NULL)
+			return;
+
+		if (cb->getControlBlockState() == FREE)
+		{
+		    log_msg(LOG_INFO, "Control block is freed\n");
+		    return;
+		}
+
+		while (true)
+		{
+			Event currentEvent;
+			if (cb->getCurrentEvent(currentEvent) == false)
+			{
+				break;
+			}
+
+			State *currentState_p = cb->getCurrentState();
+			if (currentState_p == NULL)
+			{
+				log_msg(LOG_INFO, "Current state is NULL"
+						" for control block idx %d\n", cb->getCBIndex());
+
+				// TODO: free event msg data or cleaner handling
+
+				break;;
+			}
+
+			log_msg(LOG_DEBUG,
+					"################ Executing actions for event: %s and State: %s #################\n",
+					 Events[currentEvent.getEventId()], States[currentState_p->getStateId()]);
+
+			time_t mytime = time(NULL);
+			debugEventInfo dEventInfo(currentEvent.getEventId(), currentState_p->getStateId(), mytime);
+			cb->addDebugInfo(dEventInfo);
+
+			ActStatus ret = currentState_p->executeActions(currentEvent.getEventId(),*cb);
+			if(PROCEED != ret)
+			{
+				// TODO: Error Handling, do not process further events for now
+				break;;
+			}
+
+			void * event_data = currentEvent.getEventData();
+			if (event_data != NULL)
+				delete static_cast <cmn::utils::MsgBuffer *>(event_data);
+		}
+
+		if (cb->getControlBlockState() == ALLOCATED)
+		    cb->setProcQueueFlag(false);
+	}
+}
+