[experimental-ims] e1f1d8f do_stream

[Geoff Simmons]

commit e1f1d8f157eda6545b93161792f095615228a35d
Author: Per Buer <perbu at varnish-software.com>
Date:   Thu Jun 30 10:23:25 2011 +0200

    do_stream

diff --git a/doc/sphinx/reference/vcl.rst b/doc/sphinx/reference/vcl.rst
index 4a88dd1..8ed308d 100644
--- a/doc/sphinx/reference/vcl.rst
+++ b/doc/sphinx/reference/vcl.rst
@@ -647,6 +647,12 @@ The following variables are available after the requested object has
 been retrieved from the backend, before it is entered into the cache. In
 other words, they are available in vcl_fetch:
 
+beresp.do_stream 
+  Deliver the object to the client directly without fetching the whole
+  object into varnish. If this request is pass'ed it will not be
+  stored in memory. As of Varnish Cache 3.0 the object will marked as busy
+  as it is delivered so only client can access the object.
+
 beresp.do_esi
   Boolean. ESI-process the object after fetching it. Defaults to false. Set it
   to true to parse the object for ESI directives.