/*
* Parser comma separated list of strings to Glist
*
* @param list comma separated list of strings
* @returns GList or null if the list is empty
*/
GList *parse_list(const char* list)
{
if (list == NULL)
return NULL;
char *tmp_list = xstrdup(list);
GList *l = parse_delimited_list(tmp_list, LIST_DELIMITER);
free(tmp_list);
return l;
}
/*
* Finds the cpumask related to a pmu. If no cpumask file is present,
* it assumes the default mask, i.e., the set of all cpus.
*/
void setup_cpu_config(struct pmu *pmu_ptr, int *ncpus, int **cpuarr)
{
FILE *cpulist;
char cpumask_path[PATH_MAX], *line;
int *on_cpus = NULL;
size_t len = 0;
memset(cpumask_path, '\0', PATH_MAX);
snprintf(cpumask_path, PATH_MAX, "%s%s/%s", dev_dir, pmu_ptr->name,
PMU_CPUMASK);
cpulist = fopen(cpumask_path, "r");
/*
* If this file is not available, then the cpumask is the set of all
* available cpus.
*/
if (!cpulist)
return;
if (getline(&line, &len, cpulist) > 0) {
*ncpus = parse_delimited_list(line, NULL);
if (*ncpus > 0) {
on_cpus = calloc(*ncpus, sizeof (*on_cpus));
if (!on_cpus) {
fclose(cpulist);
*cpuarr = NULL;
return;
}
} else {
*cpuarr = NULL;
return;
}
parse_delimited_list(line, on_cpus);
*cpuarr = on_cpus;
}
fclose(cpulist);
}
