auparse_add_callback(3) centos man page | unix.com

AUPARSE_ADD_CALLBACK(3) 					  Linux Audit API					   AUPARSE_ADD_CALLBACK(3)

NAME
       auparse_add_callback - add a callback handler for notifications

SYNOPSIS
       #include <auparse.h>

       void
       auparse_add_callback(auparse_state_t *au, auparse_callback_ptr callback,
			    void *user_data, user_destroy user_destroy_func);

DESCRIPTION
       auparse_add_callback adds a callback function to the parse state which is invoked to notify the application of parsing events.

       The signature of the callback is:

       void
       auparse_callback(auparse_state_t *au, auparse_cb_event_t cb_event_type,
			void *user_data);

       When the callback is invoked it is passed:

       au
	       a pointer to the parse_state

       cb_event_type
	      enumerated value indicating the reason why the callback was invoked

       user_data
	      pointer to user supplied private data. May be NULL.

       user_destroy_func
	      pointer to function called when user_data is destroyed. May be NULL.  The signature is:

	      void destroy(void *user_data);

	      The destroy() function should be prepared to accept user_data possibly being NULL.

       The cb_event_type argument indicates why the callback was invoked. It's possible values are:

       AUPARSE_CB_EVENT_READY
	      A  complete event has been parsed and is ready to be examined. This is logically equivalent to the parse state immediately following
	      auparse_next_event()

       See auparse_feed(3) for a complete code example.

RETURN VALUE
       Returns the previous callback pointer.

SEE ALSO
       auparse_feed(3), auparse_flush_feed(3).

AUTHOR
       John Dennis

Red Hat 							     May 2007						   AUPARSE_ADD_CALLBACK(3)