DataBlade API Programmer's Manual Chapter 12: DataBlade API Function Descriptions

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MI_CALLBACK_HANDLE *mi_register_callback(conn, event_type, func, user_data,

	parent)

		MI_CONNECTION *conn;

		MI_EVENT_TYPE event_type;

		MI_CALLBACK_FUNC func;

		void  *user_data;

		MI_CALLBACK_HANDLE *parent; 


conn
is the connection descriptor. In the database server, conn must be NULL for the following event types:

MI_EVENT_END_STMT

MI_EVENT_END_SESSION

MI_Xact_State_Change

event_type
is the type of event that is handled by the callback. For a complete list of event types, see "Events".

func
is a pointer to the callback function. For more information on callbacks, see "Callbacks".

user_data
is a pointer to a user-provided structure that is passed to the callback function when the event specified by event_type occurs. It can be used to pass additional information to the callback.

parent
must be NULL.





 



Valid in Client Application?

Valid in Server Routine?

Yes
Yes