ObjFW  Check-in [903b3326e2]

	return of_tlskey_get(threadKey);
}

bool
of_thread_join(of_thread_t thread)
{
	ObtainSemaphore(&thread->semaphore);
	@try {
		if (thread->done) {
			free(thread);
			return true;
		}

	if (thread->done) {
		ReleaseSemaphore(&thread->semaphore);

		free(thread);
		return true;
	}

	@try {
		if (thread->detached || thread->joinTask != NULL) {
			errno = EINVAL;
			return false;
		}

		if ((thread->joinSigBit = AllocSignal(-1)) == -1) {
			errno = EAGAIN;