add client_header_buffer_size tuning parameter

We're changing our default to 1K buffers to save memory.  This
should reduce memory usage of idle clients and lower pressure on
the MRI GC.  Rails applications using session cookies (the
default) may want to up this to 2K or more.

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/rainbows/http_server.rb b/lib/rainbows/http_server.rb
index 4e1d7d9..c36b7bf 100644
--- a/lib/rainbows/http_server.rb
+++ b/lib/rainbows/http_server.rb
@@ -141,4 +141,10 @@ class Rainbows::HttpServer < Unicorn::HttpServer
     end
     Rainbows.max_bytes = nr
   end
+
+  def client_header_buffer_size(bytes)
+    Integer === bytes && bytes > 0 or raise ArgumentError,
+            "client_header_buffer_size must be a positive Integer"
+    Rainbows.client_header_buffer_size = bytes
+  end
 end