/* Main function */
int main()
{
Machine mach;
double A, k;
init(&mach);
k = (log(mach.fan.max_speed) - log(mach.fan.min_speed)) / (mach.high_temp - mach.low_temp);
A = mach.fan.max_speed * exp(-(mach.high_temp * k));
while(1)
{
mach.temp = get_temp(mach.cores);
mach.fan.speed = calc_fan_speed(mach, A, k);
if(mach.fan.old_speed != mach.fan.speed)
{
set_fan_speed(mach.fan.speed);
log_fan_speed(mach.fan.speed, mach.temp);
mach.fan.old_speed = mach.fan.speed;
mach.old_temp = mach.temp;
}
sleep(mach.polling_interval);
}
return SUCCESS;
}
int main(int argc, char * const argv[]){
/* Parse the command line arguments */
MFC.fork = TRUE;
parse_options(argc, argv);
signal(SIGHUP,Signal_Handler); /* hangup signal */
signal(SIGTERM,Signal_Handler); /* software termination signal from kill */
struct timespec timx,tim1;
openlog("mfc-daemon", LOG_PID, LOG_DAEMON);
MFC.syslog = TRUE;
/* check machine and pidfile*/
MFC.total_cpus = check_cpu();
MFC.total_fans = check_fan();
check_pidfile();
write_pidfile();
MFC.pidfile = TRUE;
if (MFC.fork) {
start_daemon();
}
int fan;
for (fan = 1; fan <= MFC.total_fans; ++fan) {
write_fan_manual(fan, 1);
}
tim1.tv_sec = TV_SEC;
tim1.tv_nsec = TV_NSEC;
//init
int wr_manual=0;
int change_number=0;
int old_fan_speed=-1;
INFO("Start");
int temp = get_cpu_temperature();
int old_temp_change = 0;
int fan_speed=GET_FAN_SPEED(temp);
fan_speed=set_min_max_fan_speed(fan_speed);
for (fan = 1; fan <= MFC.total_fans; ++fan) {
write_fan_speed(fan, fan_speed);
}
while (1){
wr_manual++;
if (wr_manual==9){
for (fan = 1; fan <= MFC.total_fans; ++fan) {
write_fan_manual(fan, 1);
}
wr_manual=0;
}
temp = get_cpu_temperature();
int diff = abs(temp - old_temp_change);
if (diff >= 2){
// temp = average of both cpu's
fan_speed=GET_FAN_SPEED(temp);
fan_speed=set_min_max_fan_speed(fan_speed);
if (fan_speed!=old_fan_speed){
for (fan = 1; fan <= MFC.total_fans; ++fan) {
write_fan_speed(fan, fan_speed);
}
change_number=log_fan_speed(fan_speed,change_number,temp);
old_fan_speed=fan_speed;
}
old_temp_change = temp;
}
if (nanosleep(&tim1,&timx) == -1){
QUIT_DAEMON("Error nanosleep");
}
}
}
