-#define http_message_parse_headers_callback _http_message_parse_headers_callback
-PHP_HTTP_API void _http_message_parse_headers_callback(void *message, char *http_line, size_t line_length, HashTable **headers TSRMLS_DC);
+#define http_message_parse(m, l) http_message_parse_ex(NULL, (m), (l))
+#define http_message_parse_ex(h, m, l) _http_message_parse_ex((h), (m), (l) TSRMLS_CC)
+PHP_HTTP_API http_message *_http_message_parse_ex(http_message *msg, const char *message, size_t length TSRMLS_DC);