ck_epoch_recycle3

#include <ck_epoch.h>
#include <stdlib.h>
/*
 * epoch was previously initialized with ck_epoch_init.
 */
ck_epoch_t *epoch;
void
function(void)
{
	ck_epoch_record_t *record;
	record = ck_epoch_recycle(&epoch);
	if (record == NULL) {
		record = malloc(sizeof *record);
		if (record == NULL)
			return;
		ck_epoch_register(&epoch, record, NULL);
	}
	/*
	 * After we are done, we will unregister the record so it
	 * can be used by other new participants in the epoch system
	 * provided by the object pointed to by "epoch".
	 */
	ck_epoch_unregister(&epoch, record);
	return;
}