set_int_safe_time
set_int_safe_time(osn_var, &osn_var->softirq.delta_start);
set_int_safe_time(osn_var, &osn_var->thread.delta_start);
last_int_count = set_int_safe_time(osn_var, &last_sample);
int_count = set_int_safe_time(osn_var, &sample);
set_int_safe_time(osn_var, &osn_var->irq.delta_start);