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/************************************************************************
* This file is part of paramano. *
* *
* paramano is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License as *
* published by the Free Software Foundation; either version 3 of the *
* License, or (at your option) any later version. *
* *
* paramano is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with paramano. If not, see *
* <http://www.gnu.org/licenses/>. *
************************************************************************/
#include "getcore.h"
#include "common.h"
#include <stdio.h>
#include <stdlib.h>
#include <glib.h>
#include <unistd.h>
unsigned int cores;
/***********************************************************************
* Return true/false if specified core num exists
**********************************************************************/
bool core_exists(unsigned int core)
{
char* path;
int result;
asprintf(&path, "/sys/devices/system/cpu/cpu%d/cpufreq", core);
debug("Checking if core %d exists by opening '%s'\n",core,path);
result = access(path, F_OK);
free (path);
return (result != -1);
}
/***********************************************************************
* Initialise surrounding variables
**********************************************************************/
void gc_init()
{
cores = 0;
while(core_exists(cores))
cores++;
debug("Found %d cores\n",cores);
}
/***********************************************************************
* Return number of cores
**********************************************************************/
int gc_number()
{
return cores;
}
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