From cd7f37d34645dd2f54175d60632f9684cf064c6c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= <essen@ninenines.eu>
Date: Thu, 27 Sep 2012 01:31:19 +0200
Subject: Optimize Connection header parsing

Still optimizing the critical path.

Removes cowboy_http:connection_to_atom/1.
---
 src/cowboy_http.erl | 25 -------------------------
 1 file changed, 25 deletions(-)

(limited to 'src/cowboy_http.erl')

diff --git a/src/cowboy_http.erl b/src/cowboy_http.erl
index c3bef2f..6ba4834 100644
--- a/src/cowboy_http.erl
+++ b/src/cowboy_http.erl
@@ -42,7 +42,6 @@
 -export([ce_identity/1]).
 
 %% Interpretation.
--export([connection_to_atom/1]).
 -export([version_to_binary/1]).
 -export([urldecode/1]).
 -export([urldecode/2]).
@@ -773,20 +772,6 @@ ce_identity(Data) ->
 
 %% Interpretation.
 
-%% @doc Walk through a tokens list and return whether
-%% the connection is keepalive or closed.
-%%
-%% The connection token is expected to be lower-case.
--spec connection_to_atom([binary()]) -> keepalive | close.
-connection_to_atom([]) ->
-	keepalive;
-connection_to_atom([<<"keep-alive">>|_Tail]) ->
-	keepalive;
-connection_to_atom([<<"close">>|_Tail]) ->
-	close;
-connection_to_atom([_Any|Tail]) ->
-	connection_to_atom(Tail).
-
 %% @doc Convert an HTTP version tuple to its binary form.
 -spec version_to_binary(version()) -> binary().
 version_to_binary({1, 1}) -> <<"HTTP/1.1">>;
@@ -1030,16 +1015,6 @@ asctime_date_test_() ->
 	],
 	[{V, fun() -> R = asctime_date(V) end} || {V, R} <- Tests].
 
-connection_to_atom_test_() ->
-	%% {Tokens, Result}
-	Tests = [
-		{[<<"close">>], close},
-		{[<<"keep-alive">>], keepalive},
-		{[<<"keep-alive">>, <<"upgrade">>], keepalive}
-	],
-	[{lists:flatten(io_lib:format("~p", [T])),
-		fun() -> R = connection_to_atom(T) end} || {T, R} <- Tests].
-
 content_type_test_() ->
 	%% {ContentType, Result}
 	Tests = [
-- 
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