Function dds_lget_subscription_matched_arg¶
Defined in File dds_public_listener.h
Function Documentation¶
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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