failsafe.c


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#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "cputemp2maxfreq.h"
#include "cpufreq.h"

extern struct s_cpudata cpudata;
extern struct s_config config;

void failsafe(int code)
{
// First try to set the CPU to it's minimum frequency
 if (cpufreq_set_long_int("scaling_max_freq",cpudata.min_freq,100)>0)
 {
  printf("Set scaling frequency to CPU's minimum frequency.\n");
  exit(code);
 }
 printf("Failed to set scaling frequency to CPU's minimum frequency, error: %d (%s).\n",errno,strerror(errno));

// If that failed, try the fallback frequency
 if (cpufreq_set_long_int("scaling_max_freq",config.fallback_freq,100)>0)
 {
  printf("Set scaling frequency to fallback frequency.\n");
  exit(code);
 }
 printf("Failed to set scaling frequency to fallback frequency, error: %d (%s).\n",errno,strerror(errno));

// Everything failed, issue a warning 
 printf("All safety measures failed, watch out not to fry your hardware.\n");
 exit(code);
}