#include #include #include #include static int do_test (void) { cpu_set_t cs; if (sched_getaffinity (getpid (), sizeof (cs), &cs) != 0) { printf ("getaffinity failed: %m\n"); return 1; } int result = 0; int cpu = 0; while (CPU_COUNT (&cs) != 0) { if (CPU_ISSET (cpu, &cs)) { cpu_set_t cs2; CPU_ZERO (&cs2); CPU_SET (cpu, &cs2); if (sched_setaffinity (getpid (), sizeof (cs2), &cs2) != 0) { printf ("setaffinity(%d) failed: %m\n", cpu); result = 1; } else { int cpu2 = sched_getcpu (); if (cpu2 == -1 && errno == ENOSYS) { puts ("getcpu syscall not implemented"); return 0; } if (cpu2 != cpu) { printf ("getcpu results %d not possible\n", cpu2); result = 1; } } CPU_CLR (cpu, &cs); } ++cpu; } return result; } #define TEST_FUNCTION do_test () #include