act_sleep = SIMIX_action_sleep(SIMIX_host_self(), max_duration);
SIMIX_register_action_to_condition(act_sleep,cond);
SIMIX_register_condition_to_action(act_sleep,cond);
act_sleep = SIMIX_action_sleep(SIMIX_host_self(), max_duration);
SIMIX_register_action_to_condition(act_sleep,cond);
SIMIX_register_condition_to_action(act_sleep,cond);