fsfw/osal/host/QueueMapManager.h

#ifndef FSFW_OSAL_HOST_QUEUEMAPMANAGER_H_
#define FSFW_OSAL_HOST_QUEUEMAPMANAGER_H_

#include "../../ipc/MessageQueueSenderIF.h"
#include "../../osal/host/MessageQueue.h"
#include <unordered_map>
#include <atomic>

using QueueMap = std::unordered_map<MessageQueueId_t, MessageQueueIF*>;


/**
 * An internal map to map message queue IDs to message queues.
 * This propably should be a singleton..
 */
class QueueMapManager {
public:


    //! Returns the single instance of QueueMapManager.
    static QueueMapManager* instance();

    /**
     * Insert a message queue into the map and returns a message queue ID
     * @param queue The message queue to insert.
     * @param id The passed value will be set unless a nullptr is passed
     * @return
     */
    ReturnValue_t addMessageQueue(MessageQueueIF* queue, MessageQueueId_t*
            id = nullptr);
    /**
     * Get the message queue handle by providing a message queue ID. Returns nullptr
     * if the queue ID is not contained inside the internal map.
     * @param messageQueueId
     * @return
     */
    MessageQueueIF* getMessageQueue(MessageQueueId_t messageQueueId) const;

private:
    //! External instantiation is forbidden. Constructor still required for singleton instantiation.
    QueueMapManager();
    ~QueueMapManager();

    uint32_t queueCounter = 0;
    MutexIF* mapLock;
    QueueMap queueMap;
    static QueueMapManager* mqManagerInstance;
};



#endif /* FSFW_OSAL_HOST_QUEUEMAPMANAGER_H_ */