Function otSrpClientAddService 

pub unsafe extern "C" fn otSrpClientAddService(
    aInstance: *mut otInstance,
    aService: *mut otSrpClientService,
) -> otError

Adds a service to be registered with server.

After a successful call to this function, otSrpClientCallback will be called to report the status of the service addition/registration with SRP server.

The otSrpClientService instance being pointed to by @p aService MUST persist and remain unchanged after returning from this function (with OT_ERROR_NONE). OpenThread will save the pointer to the service instance.

The otSrpClientService instance is not longer tracked by OpenThread and can be reclaimed only when

• It is removed explicitly by a call to otSrpClientRemoveService() or removed along with other services by a call to otSrpClientRemoveHostAndServices() and only after the otSrpClientCallback` is called indicating the service was removed. Or,
• A call to otSrpClientClearHostAndServices() which removes the host and all related services immediately.

@param[in] aInstance A pointer to the OpenThread instance. @param[in] aService A pointer to a otSrpClientService instance to add.

@retval OT_ERROR_NONE The addition of service started successfully. The otSrpClientCallback will be called to report the status. @retval OT_ERROR_ALREADY A service with the same service and instance names is already in the list. @retval OT_ERROR_INVALID_ARGS The service structure is invalid (e.g., bad service name or otDnsTxtEntry).