Queue Handler

The open62541 server template includes a Queue Object and provides a corresponding functionality which adds or removes queue entries to the queue_variable based on tge method calls add_queue_element and remove_queue_element. Since the queue handler operates in a separate thread, the boolean running variable of the server’s main loop has to be passed to this thread, so that it terminates when the server shuts down.

alternate textgit 
/* Arguments:
 * UA_Server *server: server instance
 * UA_NodeId module_object_nodeId: NodeId of the instance of the Instance of the ModuleType
 * UA_Boolean *running: Pointer to the server's running variable to shut down the thread
 */
UA_StatusCode start_queue_handler(UA_Server *server,
                                  UA_NodeId module_object_nodeId,
                                  UA_Boolean *running);