#ifdef HTTP_HAVE_PERSISTENT_HANDLES
# define HTTP_CURL_SHARE_CTOR(ch) (SUCCESS == http_persistent_handle_acquire("http_request_datashare", &(ch)))
# define HTTP_CURL_SHARE_DTOR(chp) http_persistent_handle_release("http_request_datashare", (chp))
#ifdef HTTP_HAVE_PERSISTENT_HANDLES
# define HTTP_CURL_SHARE_CTOR(ch) (SUCCESS == http_persistent_handle_acquire("http_request_datashare", &(ch)))
# define HTTP_CURL_SHARE_DTOR(chp) http_persistent_handle_release("http_request_datashare", (chp))