diff options
Diffstat (limited to 'lib/diameter/src')
| -rw-r--r-- | lib/diameter/src/transport/diameter_sctp.erl | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/lib/diameter/src/transport/diameter_sctp.erl b/lib/diameter/src/transport/diameter_sctp.erl index 8de19e904e..4eb3379d59 100644 --- a/lib/diameter/src/transport/diameter_sctp.erl +++ b/lib/diameter/src/transport/diameter_sctp.erl @@ -102,6 +102,7 @@ streams :: {uint(), uint()} %% {InStream, OutStream} counts | undefined, os = 0 :: uint(), %% next output stream + rotate = 1 :: boolean() | 0 | 1, %% rotate os? packet = true :: boolean() %% legacy transport_data? | raw, message_cb = false :: false | diameter:eval(), @@ -692,11 +693,16 @@ send(#diameter_packet{transport_data = {outstream, SId}} = S) -> send(SId rem OS, Msg, S); -%% ... or not: rotate through all streams. -send(Msg, #transport{streams = {_, OS}, +%% ... or not: rotate when sending on multiple streams ... +send(Msg, #transport{rotate = true, + streams = {_, OS}, os = N} = S) -> - send(N, Msg, S#transport{os = (N + 1) rem OS}). + send(N, Msg, S#transport{os = (N + 1) rem OS}); + +%% ... or send on the only stream available. +send(Msg, S) -> + send(0, Msg, S). %% send/3 @@ -764,7 +770,7 @@ recv({[#sctp_sndrcvinfo{assoc_id = Id}], _Bin} %% Inbound Diameter message. recv({[#sctp_sndrcvinfo{}], Bin} = Msg, S) when is_binary(Bin) -> - message(recv, Msg, S); + message(recv, Msg, recv(S)); recv({_, #sctp_shutdown_event{}}, _) -> stop; @@ -784,6 +790,25 @@ recv({_, #sctp_paddr_change{}}, _) -> recv({_, #sctp_pdapi_event{}}, _) -> ok. +%% recv/1 +%% +%% Start sending unordered after the second reception, so that an +%% outgoing CER/CEA will arrive at the peer before another request. + +recv(#transport{rotate = B} = S) + when is_boolean(B) -> + S; + +recv(#transport{rotate = 0, streams = {_,N}, socket = Sock} = S) -> + ok = inet:setopts(Sock, [{sctp_default_send_param, + #sctp_sndrcvinfo{flags = [unordered]}}]), + S#transport{rotate = 1 < N}; + +recv(#transport{rotate = N} = S) -> + S#transport{rotate = N-1}. + +%% publish/4 + publish(T, Ref, Id, Sock) -> true = diameter_reg:add_new({?MODULE, T, {Ref, {Id, Sock}}}), putr(?INFO_KEY, {gen_sctp, Sock}). %% for info/1 |