 diff --git a/README b/README
-index 2f68e14..4f2c4a7 100644
+index 2f68e14..262822a 100644
 --- a/README
 +++ b/README
-@@ -1,3 +1,40 @@
+@@ -1,3 +1,38 @@
 +This is an Nginx fork that adds dtrace USDT probes.
  
 -Documentation is available at http://nginx.org
-+This is still under development and not usable yet.
-+
 +Installation:
 +
 +    ./configure --with-dtrace-probes \

+
+        } else {
+            out .= "\"\""
+        }
+
+        if (ngx_buf_last_buf(buf)) {

+}
+
+
+function ngx_buf_in_file(b)
+{
+    return @cast(b, "ngx_buf_t", "NGX_SBIN_PATH")->in_file
+}
+
+
+function ngx_buf_last_buf(b)
+{
+    return @cast(b, "ngx_buf_t", "/home/agentzh/git/lua-nginx-module/work/nginx/sbin/nginx")->last_buf
