Ответ 1
Ваша проблема проста: task_threads
возвращает массив портов Mach, а не массив pthread_t
. При вызове pthread_getname_np
вы обрабатываете порт Mach как pthread_t
. Но порт Mach не является pthread_t
. Вам нужно преобразовать их в pthread_t
с помощью pthread_from_mach_thread_np
:
static void dumpThreads(void) {
char name[256];
mach_msg_type_number_t count;
thread_act_array_t list;
task_threads(mach_task_self(), &list, &count);
for (int i = 0; i < count; ++i) {
pthread_t pt = pthread_from_mach_thread_np(list[i]);
if (pt) {
name[0] = '\0';
int rc = pthread_getname_np(pt, name, sizeof name);
NSLog(@"mach thread %u: getname returned %d: %s", list[i], rc, name);
} else {
NSLog(@"mach thread %u: no pthread found", list[i]);
}
}
}
Результат моей тестовой программы:
2013-03-14 03:21:45.908 hole[28315:c07] url connection complete
2013-03-14 03:21:46.787 hole[28315:c07] mach thread 3079: getname returned 0:
2013-03-14 03:21:46.789 hole[28315:c07] mach thread 6147: getname returned 0:
2013-03-14 03:21:46.790 hole[28315:c07] mach thread 6915: getname returned 0:
2013-03-14 03:21:46.792 hole[28315:c07] mach thread 7683: getname returned 0: WebThread
2013-03-14 03:21:46.794 hole[28315:c07] mach thread 13059: getname returned 0: com.apple.NSURLConnectionLoader
2013-03-14 03:21:46.796 hole[28315:c07] mach thread 16131: getname returned 0:
2013-03-14 03:21:46.798 hole[28315:c07] mach thread 17667: getname returned 0:
2013-03-14 03:21:46.801 hole[28315:c07] mach thread 18187: getname returned 0: com.apple.CFSocket.private
2013-03-14 03:21:46.802 hole[28315:c07] mach thread 20227: getname returned 0: