problem in tbox http client

c

#include "tbox/tbox.h"

int main() {
    tb_init(tb_null, tb_null);
    int i = 10;
    while (i --> 1) {
        tb_http_ref_t http = tb_http_init();
        tb_http_ctrl(http, TB_HTTP_OPTION_SET_COOKIES, tb_cookies());
        tb_http_ctrl(http, TB_HTTP_OPTION_SET_METHOD, TB_HTTP_METHOD_GET);
        tb_http_ctrl(http, TB_HTTP_OPTION_SET_URL, "http://google.com");
        if (!tb_http_open(http)) {
            return -1;
        }
        tb_http_status_t *status = tb_http_status(http);
        tb_http_exit(http);
        tb_http_close(http);
    }
    
    tb_sleep(1000);
}