Function test_once_thread

lib_acl/samples/thread/thread1/main.c:228–257

static acl_pthread_once_t once_control = ACL_PTHREAD_ONCE_INIT;
static void *test_once_thread(void *arg acl_unused)
{
	ACL_VSTRING *buf;
	static acl_pthread_key_t buf_key = -1;
	static __thread ACL_VSTRING *__vbuf = NULL;

	acl_pthread_once(&once_control, init_once);

	if (__vbuf == NULL) {
		__vbuf = acl_vstring_alloc(256);
		acl_pthread_atexit_add(__vbuf, free_vbuf);
	}

	buf = (ACL_VSTRING*) acl_pthread_tls_get(&buf_key);
	if (buf == NULL) {
		buf = acl_vstring_alloc(256);
		acl_pthread_tls_set(buf_key, buf, free_buf);
	}

	buf = (ACL_VSTRING*) acl_pthread_tls_get(&buf_key);
	if (buf == NULL)
		printf(">>>%s(tid=%d) buf null\n", __FUNCTION__, (int) acl_pthread_self());
	else
		printf(">>>%s(tid=%d) buf not null\n", __FUNCTION__, (int) acl_pthread_self());

	printf(">>>%s: in thread %d, last error: %s\n",
		__FUNCTION__, (int) acl_pthread_self(), acl_last_serror());

	return (NULL);
}

static void test_pthread_once(void)
{