struct <RoutineInterface-Namespace>::<RoutineInterface>::<RoutineInterface6>StartOutput

The structure <RoutineInterface6>StartOutput from the module diag of the AUTOSAR Adaptive Platform encapsulates all output arguments for the start operation of a diagnostic routine. When a start request arrives, the application-specific routine implementation populates the data fields of the structure with the resulting values and passes the instance to the platform, presumably embedded in an asynchronous return object. Question (open) In accordance with interpretation, error states are not signaled in the data structure itself but via separate error codes, which is why all required output parameters must always be completely and consistently initialized before return.

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Context

The structure <RoutineInterface6>StartOutput is part of the module diag of the AUTOSAR Adaptive Platform in release R25-11. Within this diagnostic module, the type serves as a data container that aggregates the outgoing arguments for the operation to start a diagnostic routine. When executing diagnostic functions via routine control, an application-specific service implementation and the diagnostic infrastructure of the platform typically interact with each other. Here, the structure acts at the interface between the concrete routine implementation and the management layer for diagnostic requests.

In this setup, <RoutineInterface6>StartOutput assumes the role of providing all output data generated by an application when executing the start command in a bundled manner. Interpretation: The structure presumably serves as a pure data transfer object (DTO) without its own business logic, whose specific member fields correspond to the output parameters of the routine defined in the interface model. Question Q-99209f0267b43982 (open) This encapsulation ensures that the calling diagnostic management can receive the return values as a whole and process them further or prepare them for feedback to external diagnostic testers.

Lifecycle

The lifecycle of <RoutineInterface6>StartOutput is closely coupled to the execution context of the start operation of the diagnostic routine. An instance of this structure is instantiated by the executing routine implementation of the application as soon as a request to start the routine is processed. During processing, the application populates the individual attributes of the structure with the data resulting from the start procedure.

Regarding ownership, control over the object initially resides locally with the executing routine. If return to diagnostic management is expected to occur, this typically happens by passing by value or move semantics, for example in the context of asynchronous return structures of the platform. Question (open) After handover to the platform runtime environment and forwarding of the data to the diagnostic protocol layer, the lifecycle of the object ends, whereupon the structure is destroyed and the occupied memory is freed. Because the structure is designed as a pure data container, it has no internal state machine of its own; life phases are limited to creation, population, return, and release.

Usage Path

The typical sequence for using <RoutineInterface6>StartOutput is divided into a fixed series of steps within routine processing:

• Initialization: Upon arrival of a start request, the providing application instantiates an instance of <RoutineInterface6>StartOutput on the stack or within the responsible execution context.
• Population of data fields: The application carries out the functional checks and actions to start up the routine. The output data determined in the process is assigned to the fields of the structure.
• Feedback: The fully populated structure is returned to the diagnostic system as a function result. The return presumably occurs embedded in a typed container such as ara::core::Result or ara::core::Future in order to comply with the asynchronous interface conventions of the Adaptive Platform. Question Q-08976b247fab2180 (open)
• Processing by the platform: The platform reads the contained values, transfers them into the corresponding diagnostic response message, and concludes the processing procedure.

For developers of diagnostic applications, the main task consists in ensuring the correct and complete assignment of all required output values before leaving the method.

Error Scenarios

Since <RoutineInterface6>StartOutput is defined as a data structure for regular output parameters, it does not encapsulate error codes or exception handling itself. Error scenarios occur primarily if the routine cannot be started properly or invalid output values are generated.

Interpretation: If execution of the start operation fails, the resulting diagnostic errors are likely not transported via fields of this structure, but via the platform error model, for example by means of standardized error codes in ara::core::ErrorCode. Question Q-fe76c79ba073f321 (open) A precondition for successful use of the structure is that the triggering start action was permissible and the conditions required for routine execution are satisfied. The postcondition is that all output parameters of the structure declared in the interface are left in a valid and consistent state before handover to the diagnostic system occurs.