uint32_t thread_count_native(struct cpuid_state_t *state)
{
#if defined(TARGET_OS_MACOSX)
uint32_t count;
size_t size = sizeof(count);
if (sysctlbyname("hw.ncpu", &count, &size, NULL, 0))
return 1;
return count;
#elif defined(TARGET_OS_SOLARIS)
long count;
if ((count = sysconf(_SC_NPROCESSORS_ONLN)) == -1)
return 1;
(void)state;
return (uint32_t)count;
#else
static unsigned int i = 0;
if (i) return i;
if (thread_bind_native(state, 0) != 0) {
fprintf(stderr, "ERROR: thread_bind() doesn't appear to be working correctly.\n");
abort();
}
while (thread_bind_native(state, ++i) == 0);
return i;
#endif
}
static void *apic_nonsensical_worker_thread(void *flagptr)
{
uint8_t *flag = (uint8_t *)flagptr;
uint32_t hwthreads = thread_count_native(NULL);
struct timeval tv;
while (*flag) {
thread_bind_native(NULL, rand() % hwthreads);
gettimeofday(&tv, NULL);
}
pthread_exit(NULL);
return NULL;
}
uint32_t thread_count_native( __unused_variable struct cpuid_state_t *state)
{
#ifdef TARGET_OS_MACOSX
uint32_t count;
size_t size = sizeof(count);
if (sysctlbyname("hw.ncpu", &count, &size, NULL, 0))
return 1;
return count;
#else
static unsigned int i = 0;
if (i) return i;
if (thread_bind_native(state, 0) != 0) {
fprintf(stderr, "ERROR: thread_bind() doesn't appear to be working correctly.\n");
abort();
}
while (thread_bind_native(state, ++i) == 0);
return i;
#endif
}
static void *apic_validation_thread(void *ptr)
{
struct apic_validate_t *meta = (struct apic_validate_t *)ptr;
thread_bind_native(NULL, meta->index);
while (!meta->failed && *meta->worker_flag) {
usleep(5000);
if (get_apicid(meta->state) != meta->expected) {
meta->failed = 1;
}
}
pthread_exit(NULL);
return NULL;
}
