diff options
Diffstat (limited to 'lib/diameter/src/base/diameter_service.erl')
| -rw-r--r-- | lib/diameter/src/base/diameter_service.erl | 115 |
1 files changed, 66 insertions, 49 deletions
diff --git a/lib/diameter/src/base/diameter_service.erl b/lib/diameter/src/base/diameter_service.erl index cffba4fc94..29046e6462 100644 --- a/lib/diameter/src/base/diameter_service.erl +++ b/lib/diameter/src/base/diameter_service.erl @@ -494,7 +494,7 @@ handle_call({info, Item}, _From, S) -> {reply, service_info(Item, S), S}; handle_call(stop, _From, S) -> - shutdown(S), + shutdown(service, S), {stop, normal, ok, S}; %% The server currently isn't guaranteed to be dead when the caller %% gets the reply. We deal with this in the call to the server, @@ -681,9 +681,10 @@ upgrade_insert(#state{service = #diameter_service{pid = Pid}} = S) -> %%% --------------------------------------------------------------------------- terminate(Reason, #state{service_name = Name} = S) -> + send_event(Name, stop), ets:delete(?STATE_TABLE, Name), shutdown == Reason %% application shutdown - andalso shutdown(S). + andalso shutdown(application, S). %%% --------------------------------------------------------------------------- %%% # code_change(FromVsn, State, Extra) @@ -766,44 +767,48 @@ mod_state(Alias, ModS) -> %%% # shutdown/2 %%% --------------------------------------------------------------------------- -shutdown(Refs, #state{peerT = PeerT}) -> - ets:foldl(fun(P,ok) -> s(P, Refs), ok end, ok, PeerT). +%% remove_transport: ask watchdogs to terminate their transport. +shutdown(Refs, #state{peerT = PeerT}) + when is_list(Refs) -> + ets:foldl(fun(P,ok) -> sp(P, Refs), ok end, ok, PeerT); -s(#peer{ref = Ref, pid = Pid}, Refs) -> - s(lists:member(Ref, Refs), Pid); - -s(true, Pid) -> - Pid ! {shutdown, self()}; %% 'DOWN' will cleanup as usual -s(false, _) -> - ok. - -%%% --------------------------------------------------------------------------- -%%% # shutdown/1 -%%% --------------------------------------------------------------------------- - -shutdown(#state{peerT = PeerT}) -> +%% application/service shutdown: ask transports to terminate themselves. +shutdown(Reason, #state{peerT = PeerT}) -> %% A transport might not be alive to receive the shutdown request %% but give those that are a chance to shutdown gracefully. - wait(fun st/2, PeerT), + shutdown(conn, Reason, PeerT), %% Kill the watchdogs explicitly in case there was no transport. - wait(fun sw/2, PeerT). + shutdown(peer, Reason, PeerT). -wait(Fun, T) -> - diameter_lib:wait(ets:foldl(Fun, [], T)). +%% sp/2 -st(#peer{op_state = {OS,_}} = P, Acc) -> - st(P#peer{op_state = OS}, Acc); -st(#peer{op_state = ?STATE_UP, conn = Pid}, Acc) -> - Pid ! shutdown, - [Pid | Acc]; -st(#peer{}, Acc) -> - Acc. +sp(#peer{ref = Ref, pid = Pid}, Refs) -> + lists:member(Ref, Refs) + andalso (Pid ! {shutdown, self()}). %% 'DOWN' cleans up + +%% shutdown/3 + +shutdown(Who, Reason, T) -> + diameter_lib:wait(ets:foldl(fun(X,A) -> shutdown(Who, X, Reason, A) end, + [], + T)). + +shutdown(conn = Who, #peer{op_state = {OS,_}} = P, Reason, Acc) -> + shutdown(Who, P#peer{op_state = OS}, Reason, Acc); -sw(#peer{pid = Pid}, Acc) +shutdown(conn, + #peer{pid = Pid, op_state = ?STATE_UP, conn = TPid}, + Reason, + Acc) -> + TPid ! {shutdown, Pid, Reason}, + [TPid | Acc]; + +shutdown(peer, #peer{pid = Pid}, _Reason, Acc) when is_pid(Pid) -> exit(Pid, shutdown), [Pid | Acc]; -sw(#peer{}, Acc) -> + +shutdown(_, #peer{}, _, Acc) -> Acc. %%% --------------------------------------------------------------------------- @@ -857,6 +862,7 @@ i(SvcName) -> lists:foreach(fun(T) -> start_fsm(T,S) end, CL), init_shared(S), + send_event(SvcName, start), S. cfg_acc({SvcName, #diameter_service{applications = Apps} = Rec, Opts}, @@ -2171,15 +2177,13 @@ reply([Msg], Dict, TPid, Fs, Pkt) reply(Msg, Dict, TPid, Fs, Pkt#diameter_packet{errors = []}); %% No errors or a diameter_header/avp list. -reply(Msg, Dict, TPid, Fs, #diameter_packet{errors = Es, - transport_data = TD} - = ReqPkt) +reply(Msg, Dict, TPid, Fs, #diameter_packet{errors = Es} = ReqPkt) when [] == Es; is_record(hd(Msg), diameter_header) -> Pkt = diameter_codec:encode(Dict, make_answer_packet(Msg, ReqPkt)), eval_packet(Pkt, Fs), incr(send, Pkt, Dict, TPid), %% count result codes in sent answers - send(TPid, Pkt#diameter_packet{transport_data = TD}); + send(TPid, Pkt); %% Or not: set Result-Code and Failed-AVP AVP's. reply(Msg, Dict, TPid, Fs, #diameter_packet{errors = [H|_] = Es} = Pkt) -> @@ -2194,23 +2198,36 @@ eval_packet(Pkt, Fs) -> %% make_answer_packet/2 +%% A reply message clears the R and T flags and retains the P flag. +%% The E flag will be set at encode. 6.2 of 3588 requires the same P +%% flag on an answer as on the request. A #diameter_packet{} returned +%% from a handle_request callback can circumvent this by setting its +%% own header values. +make_answer_packet(#diameter_packet{header = Hdr, + msg = Msg, + transport_data = TD}, + #diameter_packet{header = ReqHdr}) -> + Hdr0 = ReqHdr#diameter_header{version = ?DIAMETER_VERSION, + is_request = false, + is_error = undefined, + is_retransmitted = false}, + #diameter_packet{header = fold_record(Hdr0, Hdr), + msg = Msg, + transport_data = TD}; + %% Binaries and header/avp lists are sent as-is. -make_answer_packet(Bin, _) +make_answer_packet(Bin, #diameter_packet{transport_data = TD}) when is_binary(Bin) -> - #diameter_packet{bin = Bin}; -make_answer_packet([#diameter_header{} | _] = Msg, _) -> - #diameter_packet{msg = Msg}; - -%% Otherwise a reply message clears the R and T flags and retains the -%% P flag. The E flag will be set at encode. 6.2 of 3588 requires the -%% same P flag on an answer as on the request. -make_answer_packet(Msg, #diameter_packet{header = ReqHdr}) -> - Hdr = ReqHdr#diameter_header{version = ?DIAMETER_VERSION, - is_request = false, - is_error = undefined, - is_retransmitted = false}, - #diameter_packet{header = Hdr, - msg = Msg}. + #diameter_packet{bin = Bin, + transport_data = TD}; +make_answer_packet([#diameter_header{} | _] = Msg, + #diameter_packet{transport_data = TD}) -> + #diameter_packet{msg = Msg, + transport_data = TD}; + +%% Otherwise, preserve transport_data. +make_answer_packet(Msg, #diameter_packet{transport_data = TD} = Pkt) -> + make_answer_packet(#diameter_packet{msg = Msg, transport_data = TD}, Pkt). %% rc/1 |