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-rw-r--r--src/cow_spdy.erl35
1 files changed, 33 insertions, 2 deletions
diff --git a/src/cow_spdy.erl b/src/cow_spdy.erl
index 59036ee..8484180 100644
--- a/src/cow_spdy.erl
+++ b/src/cow_spdy.erl
@@ -27,7 +27,7 @@
-export([syn_stream/12]).
-export([syn_reply/6]).
-export([rst_stream/2]).
-%% @todo settings
+-export([settings/2]).
-export([ping/1]).
-export([goaway/2]).
%% @todo headers
@@ -235,7 +235,27 @@ rst_stream(StreamID, Status) ->
<< 1:1, 3:15, 3:16, 0:8, 8:24,
0:1, StreamID:31, StatusCode:32 >>.
-%% @todo settings
+settings(ClearSettingsFlag, Settings) ->
+ IsClearSettingsFlag = to_flag(ClearSettingsFlag),
+ NbEntries = length(Settings),
+ Entries = [begin
+ IsWasPersistedFlag = to_flag(WasPersistedFlag),
+ IsPersistFlag = to_flag(PersistFlag),
+ ID = case Key of
+ upload_bandwidth -> 1;
+ download_bandwidth -> 2;
+ round_trip_time -> 3;
+ max_concurrent_streams -> 4;
+ current_cwnd -> 5;
+ download_retrans_rate -> 6;
+ initial_window_size -> 7;
+ client_certificate_vector_size -> 8
+ end,
+ << 0:6, IsWasPersistedFlag:1, IsPersistFlag:1, ID:24, Value:32 >>
+ end || {Key, Value, WasPersistedFlag, PersistFlag} <- Settings],
+ Length = 4 + iolist_size(Entries),
+ [<< 1:1, 3:15, 4:16, 0:7, IsClearSettingsFlag:1, Length:24,
+ NbEntries:32 >>, Entries].
ping(PingID) ->
<< 1:1, 3:15, 6:16, 0:8, 4:24, PingID:32 >>.
@@ -252,6 +272,17 @@ goaway(LastGoodStreamID, Status) ->
%% @todo headers
%% @todo window_update
+-ifdef(TEST).
+settings_frame_test() ->
+ ClearSettingsFlag = false,
+ Settings = [{max_concurrent_streams,1000,false,false},
+ {initial_window_size,10485760,false,false}],
+ Bin = list_to_binary(cow_spdy:settings(ClearSettingsFlag, Settings)),
+ P = cow_spdy:parse(Bin, undefined),
+ P = {settings, ClearSettingsFlag, Settings},
+ ok.
+-endif.
+
build_headers(Zdef, Headers) ->
NbHeaders = length(Headers),
Headers2 = [begin