thoughts on message queuee message

new interface. What if there are MQ messages with different sizes?
-> generic interface

furthermore, maybe command message should be refactored to operate
on a mq message instead of implementing it

datapoollocal/LocalDataPoolManager.cpp

@@ -41,7 +41,7 @@ ReturnValue_t LocalDataPoolManager::initializeHousekeepingPoolEntriesOnce() {
 }
 
 ReturnValue_t LocalDataPoolManager::handleHousekeepingMessage(
-		CommandMessage *message) {
+		MessageQueueMessage *message) {
 	return HasReturnvaluesIF::RETURN_OK;
 }
 

datapoollocal/LocalDataPoolManager.h

@@ -46,7 +46,7 @@ public:
 	LocalDataPoolManager operator=(const LocalDataPoolManager&) = delete;
 
 	ReturnValue_t generateHousekeepingPacket(sid_t sid);
-	ReturnValue_t handleHousekeepingMessage(CommandMessage* message);
+	ReturnValue_t handleHousekeepingMessage(MessageQueueMessage* message);
 
 	/**
 	 * This function is used to fill the local data pool map with pool

devicehandlers/DeviceHandlerBase.cpp

@@ -8,6 +8,8 @@
 #include <framework/datapoolglob/GlobalPoolVariable.h>
 #include <framework/devicehandlers/DeviceTmReportingWrapper.h>
 #include <framework/globalfunctions/CRC.h>
+#include <framework/housekeeping/HousekeepingMessage.h>
+#include <framework/ipc/MessageQueueMessage.h>
 #include <framework/subsystem/SubsystemBase.h>
 #include <framework/ipc/QueueFactory.h>
 #include <framework/serviceinterface/ServiceInterfaceStream.h>
@@ -36,7 +38,7 @@ DeviceHandlerBase::DeviceHandlerBase(object_id_t setObjectId,
 		transitionSourceMode(_MODE_POWER_DOWN), transitionSourceSubMode(
 		SUBMODE_NONE), deviceSwitch(setDeviceSwitch) {
 	commandQueue = QueueFactory::instance()->createMessageQueue(cmdQueueSize,
-			CommandMessage::MAX_MESSAGE_SIZE);
+			MessageQueueMessage::MAX_MESSAGE_SIZE);
 	insertInCommandMap(RAW_COMMAND_ID);
 	cookieInfo.state = COOKIE_UNUSED;
 	cookieInfo.pendingCommand = deviceCommandMap.end();
@@ -212,40 +214,59 @@ void DeviceHandlerBase::readCommandQueue() {
 		return;
 	}
 
-	CommandMessage message;
+	// This is not ideal. What if it is not a command message? (e.g. another
-	ReturnValue_t result = commandQueue->receiveMessage(&message);
+	// message with 3 parameters). The full buffer is filled anyway
+	// and I could just copy the content into the other message but
+	// all I need are few additional functions the other message type offers.
+	CommandMessage cmdMessage;
+	ReturnValue_t result = commandQueue->receiveMessage(&cmdMessage);
 	if (result != RETURN_OK) {
 		return;
 	}
 
+	// This is really annoying. I can't cast a parent object to a child.
+	// But I want to use another message format..
+//	CommandMessage* cmdMessage = dynamic_cast<CommandMessage*>(msgPtr);
+//	if(cmdMessage == nullptr) {
+//		sif::error << "DeviceHandlerBase::readCommandQueue: Could not cast"
+//				" message to CommandMessage!" << std::endl;
+//		return;
+//	}
+
 	if(healthHelperActive) {
-		result = healthHelper.handleHealthCommand(&message);
+		result = healthHelper.handleHealthCommand(&cmdMessage);
 		if (result == RETURN_OK) {
 			return;
 		}
 	}
 
-	result = modeHelper.handleModeCommand(&message);
+	result = modeHelper.handleModeCommand(&cmdMessage);
 	if (result == RETURN_OK) {
 		return;
 	}
 
-	result = actionHelper.handleActionMessage(&message);
+	result = actionHelper.handleActionMessage(&cmdMessage);
 	if (result == RETURN_OK) {
 		return;
 	}
 
-	result = parameterHelper.handleParameterMessage(&message);
+	result = parameterHelper.handleParameterMessage(&cmdMessage);
 	if (result == RETURN_OK) {
 		return;
 	}
 
-	result = handleDeviceHandlerMessage(&message);
+//	HousekeepingMessage* hkMessage = dynamic_cast<HousekeepingMessage*>(msgPtr);
+//	result = hkManager.handleHousekeepingMessage(hkMessage);
+//	if (result == RETURN_OK) {
+//		return;
+//	}
+
+	result = handleDeviceHandlerMessage(&cmdMessage);
 	if (result == RETURN_OK) {
 		return;
 	}
 
-	result = letChildHandleMessage(&message);
+	result = letChildHandleMessage(&cmdMessage);
 	if (result == RETURN_OK) {
 		return;
 	}

housekeeping/HousekeepingMessage.cpp

@@ -1,5 +1,13 @@
 #include <framework/housekeeping/HousekeepingMessage.h>
 
+HousekeepingMessage::HousekeepingMessage() {
+
+}
+
+void HousekeepingMessage::setHkReportMessage() {
+}
+
+
 //void HousekeepingMessage::setAddHkReportStructMessage(CommandMessage *message,
 //		set_t setId, store_address_t packet) {
 //	message->setCommand(ADD_HK_REPORT_STRUCT);

housekeeping/HousekeepingMessage.h

@@ -5,12 +5,14 @@
 #include <limits>
 
 union sid_t {
-	static constexpr uint64_t INVALID_ADDRESS = std::numeric_limits<uint64_t>::max();
+	static constexpr uint64_t INVALID_ADDRESS =
+			std::numeric_limits<uint64_t>::max();
 	sid_t(): raw(INVALID_ADDRESS) {}
 
 	struct {
 		object_id_t objectId ;
-		// A generic 32 bit ID to identify unique HK packets for a single object.
+		// A generic 32 bit ID to identify unique HK packets for a single
+		// object.
 		// For example, the DeviceCommandId_t is used for DeviceHandlers
 		uint32_t ownerSetId;
 	};
@@ -19,15 +21,17 @@ union sid_t {
 	 */
 	uint64_t raw;
 };
-class HousekeepingMessage {
+
+
+class HousekeepingMessage: public MessageQueueMessage {
 public:
 	/**
 	 * No instances of a message shall be created, instead
 	 * a CommandMessage instance is manipulated.
 	 */
-	HousekeepingMessage() = delete;
+	HousekeepingMessage();
-	HousekeepingMessage(const HousekeepingMessage&) = delete;
+//	HousekeepingMessage(const HousekeepingMessage&) = delete;
-	HousekeepingMessage operator=(const HousekeepingMessage &) = delete;
+//	HousekeepingMessage operator=(const HousekeepingMessage &) = delete;
 
 	static constexpr uint8_t MESSAGE_ID = MESSAGE_TYPE::HOUSEKEEPING;
 	static constexpr Command_t ADD_HK_REPORT_STRUCT =
@@ -76,6 +80,7 @@ public:
 
 //	static void setAddHkReportStructMessage(CommandMessage* message,
 //			DevisetId, store_address_t packet);
+	static void setHkReportMessage();
 };
 
 

ipc/CommandMessage.h

@@ -28,7 +28,8 @@ public:
 	static const Command_t REPLY_REJECTED = MAKE_COMMAND_ID( 0xD1 );
 
 	/**
-	 * This is the size of a message as it is seen by the MessageQueue
+	 * This is the size of a message as it is seen by the MessageQueue.
+	 * 14 of the 24 available MessageQueueMessage bytes are used.
 	 */
 	static const size_t COMMAND_MESSAGE_SIZE = HEADER_SIZE
 			+ sizeof(Command_t) + 2 * sizeof(uint32_t);

ipc/MessageQueueMessage.h

@@ -1,6 +1,7 @@
 #ifndef MESSAGEQUEUEMESSAGE_H_
 #define MESSAGEQUEUEMESSAGE_H_
 
+#include <framework/ipc/MessageQueueMessageIF.h>
 #include <framework/ipc/MessageQueueSenderIF.h>
 #include <stddef.h>
 
@@ -23,7 +24,7 @@
  *	receive messages from other tasks.
  *	@ingroup message_queue
  */
-class MessageQueueMessage {
+class MessageQueueMessage: public MessageQueueMessageIF {
 public:
 	/**
 	 * @brief	The class is initialized empty with this constructor.
@@ -43,6 +44,7 @@ public:
 	 * 				MAX_MESSAGE_SIZE and larger than MIN_MESSAGE_SIZE.
 	 */
 	MessageQueueMessage(uint8_t* data, size_t size);
+
 	/**
 	 * @brief	The size information of each message is stored in this attribute.
 	 * @details

ipc/MessageQueueMessageIF.h

@@ -0,0 +1,44 @@
+#ifndef FRAMEWORK_IPC_MESSAGEQUEUEMESSAGEIF_H_
+#define FRAMEWORK_IPC_MESSAGEQUEUEMESSAGEIF_H_
+#include <framework/ipc/MessageQueueSenderIF.h>
+#include <cstddef>
+
+class MessageQueueMessageIF {
+public:
+	virtual ~MessageQueueMessageIF() {};
+
+	/**
+	 * @brief	With this method, the whole content and the message
+	 * 			size is set to zero.
+	 */
+	virtual void clear() = 0;
+	/**
+	 * @brief	This is a debug method that prints the content
+	 * 			(till messageSize) to the debug output.
+	 */
+	virtual void print() = 0;
+	virtual const uint8_t* getBuffer() const = 0;
+	/**
+	 * @brief	This method is used to get the complete data of the message.
+	 */
+	virtual uint8_t* getBuffer() = 0;
+	/**
+	 * @brief	This method is used to set the sender's message queue id
+	 * 			information prior to sending the message.
+	 * @param setId	The message queue id that identifies the sending message queue.
+	 */
+	virtual void setSender(MessageQueueId_t setId) = 0;
+	/**
+	 * @brief	This helper function is used by the MessageQueue class to
+	 * 			check the size of an incoming message.
+	 * @details
+	 * The method must be overwritten by child classes if size checks shall
+	 * be more strict.
+	 * @return	The default implementation returns HEADER_SIZE.
+	 */
+	virtual size_t getMinimumMessageSize() = 0;
+};
+
+
+
+#endif /* FRAMEWORK_IPC_MESSAGEQUEUEMESSAGEIF_H_ */