sasl_idle man page
sasl_idle — Perform precalculations during an idle period
#include <sasl/sasl.h> int sasl_idle( sasl_conn_t *conn)
sasl_idle may be called during an idle period to allow the SASL library or any mechanisms to perform any necessary precalculation.
conn may be NULL to do precalculation prior to a connection taking place.
Returns 1 if action was taken, 0 if no action was taken.