awCanSubscribe

awCanSubscribe

BrokerError awCanSubscribe(
BrokerClient client,
char *event_type_name,
BrokerBoolean *can_subscribe);

client	The Broker client whose ability to subscribe is to be tested.
event_type_name	The event type name to which the Broker client wishes to subscribe.
can_subscribe	An indication of whether or not the Broker client is permitted to subscribe to the specified event type. Set to 1 (true) if the Broker client is permitted; otherwise, set to 0 (false). This parameter is used for output.

Determines whether or not the specified client can subscribe to the specified event type. Also determines if an event of the specified type can be delivered to the client. Upon return, the can_subscribe parameter is set to1 (true) if the Broker client is allowed to subscribe to the event; otherwise can_subscribe is set to 0 (false).

Possible BrokerError major codes	Meaning
AW_ERROR_INVALID_CLIENT	The client has been destroyed or disconnected.
AW_ERROR_NULL_PARAM	The parameter event_type_name or can_subscribe is NULL.
AW_ERROR_UNKNOWN_EVENT_TYPE	The event type does not exist on the Broker.