From 2e222053c23054dafcbd9ced1072667a3d7f065a Mon Sep 17 00:00:00 2001 From: Anders Svensson Date: Tue, 25 Apr 2017 09:36:25 +0200 Subject: Simplify diameter_caps construction Replace old macro-based implementation with something more readable. --- lib/diameter/src/base/diameter_capx.erl | 42 +++++++++++++-------------------- 1 file changed, 17 insertions(+), 25 deletions(-) (limited to 'lib/diameter/src') diff --git a/lib/diameter/src/base/diameter_capx.erl b/lib/diameter/src/base/diameter_capx.erl index 30ac847a54..837125339a 100644 --- a/lib/diameter/src/base/diameter_capx.erl +++ b/lib/diameter/src/base/diameter_capx.erl @@ -94,6 +94,9 @@ recv_CER(CER, Svc, Dict) -> recv_CEA(CEA, Svc, Dict) -> try_it([fun rCEA/3, CEA, Svc, Dict]). +-spec make_caps(#diameter_caps{}, [{atom(), term()}]) + -> tried(#diameter_caps{}). + make_caps(Caps, Opts) -> try_it([fun mk_caps/2, Caps, Opts]). @@ -110,31 +113,20 @@ try_it([Fun | Args]) -> %% mk_caps/2 mk_caps(Caps0, Opts) -> - {Caps, _} = lists:foldl(fun set_cap/2, - {Caps0, #diameter_caps{_ = false}}, - Opts), - Caps. - --define(SC(K,F), - set_cap({K, Val}, {Caps, #diameter_caps{F = false} = C}) -> - {Caps#diameter_caps{F = cap(K, copy(Val))}, - C#diameter_caps{F = true}}). - -?SC('Origin-Host', origin_host); -?SC('Origin-Realm', origin_realm); -?SC('Host-IP-Address', host_ip_address); -?SC('Vendor-Id', vendor_id); -?SC('Product-Name', product_name); -?SC('Origin-State-Id', origin_state_id); -?SC('Supported-Vendor-Id', supported_vendor_id); -?SC('Auth-Application-Id', auth_application_id); -?SC('Inband-Security-Id', inband_security_id); -?SC('Acct-Application-Id', acct_application_id); -?SC('Vendor-Specific-Application-Id', vendor_specific_application_id); -?SC('Firmware-Revision', firmware_revision); - -set_cap({Key, _}, _) -> - ?THROW({duplicate, Key}). + Fields = diameter_gen_base_rfc3588:'#info-'(diameter_base_CER, fields), + Defs = lists:zip(Fields, tl(tuple_to_list(Caps0))), + Unset = maps:from_list([{F, true} || F <- lists:droplast(Fields)]), %% no 'AVP' + {Caps, _} = lists:foldl(fun set_cap/2, {Defs, Unset}, Opts), + #diameter_caps{} = list_to_tuple([diameter_caps | [V || {_,V} <- Caps]]). + +set_cap({F,V}, {Caps, Unset}) -> + case Unset of + #{F := true} -> + {lists:keyreplace(F, 1, Caps, {F, cap(F, copy(V))}), + maps:remove(F, Unset)}; + _ -> + ?THROW({duplicate, F}) + end. cap(K, V) when K == 'Origin-Host'; -- cgit v1.2.3