1#define _GNU_SOURCE 2#include <sched.h> 3 4int __sched_cpucount(size_t size, const cpu_set_t* set) { 5 size_t i, j, cnt = 0; 6 const unsigned char* p = (const void*)set; 7 for (i = 0; i < size; i++) 8 for (j = 0; j < 8; j++) 9 if (p[i] & (1 << j)) 10 cnt++; 11 return cnt; 12} 13