7 int cpumap[MAX_NR_CPUS];
9 static int default_cpu_map(void)
13 nr_cpus = sysconf(_SC_NPROCESSORS_ONLN);
14 assert(nr_cpus <= MAX_NR_CPUS);
15 assert((int)nr_cpus >= 0);
17 for (i = 0; i < nr_cpus; ++i)
23 int read_cpu_map(void)
30 onlnf = fopen("/sys/devices/system/cpu/online", "r");
32 return default_cpu_map();
37 n = fscanf(onlnf, "%u%c", &cpu, &sep);
41 assert(nr_cpus + cpu - prev - 1 < MAX_NR_CPUS);
43 cpumap[nr_cpus++] = prev;
45 assert (nr_cpus < MAX_NR_CPUS);
46 cpumap[nr_cpus++] = cpu;
47 if (n == 2 && sep == '-')
51 if (n == 1 || sep == '\n')
58 return default_cpu_map();