Function dds_lget_subscription_matched_arg

Function Documentation

dds_return_t dds_lget_subscription_matched_arg(const dds_listener_t *listener, dds_on_subscription_matched_fn *callback, void **arg, bool *reset_on_invoke)

Get the subscription_matched callback from the listener structure.

Parameters
  • listener[in] The pointer to the listener structure, where the callback will be retrieved from

  • callback[out] Callback function; may be a null pointer

  • arg[out] Callback argument pointer; may be a null pointer

  • reset_on_invoke[out] Whether the status is reset by listener invocation; may be a null pointer

Return values
  • DDS_RETCODE_OK – if successful

  • DDS_RETCODE_BAD_PARAMETER – listener is a null pointer