http_response: use kgio_syssend with MSG_MORE

If Content-Length is known, try to save some bandwidth by
corking the headers until the body is sendable.  This allows
us to avoid sending an extra packet for small HTTP responses.

This allows high-performance websites like YHBT.net to be served
faster!

1 files changed, 5 insertions, 0 deletions

diff --git a/test/server_helper.rb b/test/server_helper.rb
index d4b8f98..a92a2da 100644
--- a/test/server_helper.rb
+++ b/test/server_helper.rb
@@ -100,4 +100,9 @@ module TrywriteBlocked
     return :wait_writable if $_tw_block_on.include?($_tw_blocked += 1)
     super
   end
+
+  def kgio_syssend(*args)
+    return :wait_writable if $_tw_block_on.include?($_tw_blocked += 1)
+    super
+  end
 end