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#include "getgov.h"
#include "getcore.h"
#include "common.h"
#include <stdio.h>
#include <string.h>
#include <glib.h>
/* [CORE][GOVERNOR NUMBER] */
static char governors[999][50][13];
static int total_governors;
/***********************************************************************
* Grab all available governors
**********************************************************************/
void gg_init()
{
char gov_string[500];
unsigned int i = 0;
total_governors = 0;
for (i = 0; i < 1/*gc_number()*/; i++)
{
memset(gov_string, '\0', sizeof(gov_string) );
gg_available(i, gov_string, sizeof(gov_string) );
char** list = g_strsplit(g_strstrip(gov_string), " ", -1);
for (char** name = list; *name; ++name) {
memset(governors[i][total_governors], '\0', 13); /* FIXME magic */
memmove(governors[i][total_governors], *name, strlen(*name));
total_governors++;
}
}
}
/***********************************************************************
* Populate out with current governor for core
**********************************************************************/
bool gg_current(int core, char* out, int size)
{
FILE* fd = NULL;
char path[1024];
snprintf(path, sizeof(path), "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_governor", core);
if (!(fd = fopen(path, "r")))
return false;
fgets(out, size, fd);
fclose(fd);
chomp(out);
return true;
}
/***********************************************************************
* Populate `out` with governors as specified by sysfs
**********************************************************************/
bool gg_available(int core, char* out, int size)
{
FILE *fd = NULL;
char path[1024];
snprintf(path, sizeof(path), "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_available_governors", core);
if (!(fd = fopen(path, "r")))
return false;
fgets(out, size, fd);
fclose(fd);
return true;
}
/***********************************************************************
* Return pointer to name of gov
**********************************************************************/
char* gg_gov(int core, int index)
{
return governors[core][index];
}
/***********************************************************************
* Return total number of governors
**********************************************************************/
unsigned int gg_number()
{
return total_governors;
}
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