diff options
| -rw-r--r-- | lib/diameter/src/base/diameter_config.erl | 106 | ||||
| -rw-r--r-- | lib/diameter/src/base/diameter_config_sup.erl | 58 | ||||
| -rw-r--r-- | lib/diameter/src/base/diameter_sup.erl | 3 | ||||
| -rw-r--r-- | lib/diameter/src/modules.mk | 3 | ||||
| -rw-r--r-- | lib/diameter/src/transport/diameter_sctp.erl | 37 | ||||
| -rw-r--r-- | lib/diameter/src/transport/diameter_tcp.erl | 31 | ||||
| -rw-r--r-- | lib/diameter/test/diameter_transport_SUITE.erl | 6 |
7 files changed, 172 insertions, 72 deletions
diff --git a/lib/diameter/src/base/diameter_config.erl b/lib/diameter/src/base/diameter_config.erl index 702f11593a..73b828536b 100644 --- a/lib/diameter/src/base/diameter_config.erl +++ b/lib/diameter/src/base/diameter_config.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2010-2015. All Rights Reserved. +%% Copyright Ericsson AB 2010-2016. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -45,10 +45,12 @@ add_transport/2, remove_transport/2, have_transport/2, - lookup/1]). + lookup/1, + subscribe/2]). -%% child server start --export([start_link/0]). +%% server start +-export([start_link/0, + start_link/1]). %% gen_server callbacks -export([init/1, @@ -58,8 +60,9 @@ handle_info/2, code_change/3]). -%% diameter_sync requests. --export([sync/1]). +%% callbacks +-export([sync/1, %% diameter_sync requests + remove/0]). %% transport server termination %% debug -export([state/0, @@ -77,6 +80,9 @@ %% Table config is written to. -define(TABLE, ?MODULE). +%% Key on which a transport-specific child registers itself. +-define(TRANSPORT_KEY(Ref), {?MODULE, transport, Ref}). + %% Workaround for dialyzer's lack of understanding of match specs. -type match(T) :: T | '_' | '$1' | '$2' | '$3' | '$4'. @@ -225,6 +231,13 @@ pred(_) -> ?THROW(pred). %% -------------------------------------------------------------------------- +%% # subscribe/2 +%% -------------------------------------------------------------------------- + +subscribe(Ref, T) -> + diameter_reg:subscribe(?TRANSPORT_KEY(Ref), T). + +%% -------------------------------------------------------------------------- %% # have_transport/2 %% %% Output: true | false @@ -264,6 +277,9 @@ start_link() -> Options = [{spawn_opt, diameter_lib:spawn_opts(server, [])}], gen_server:start_link(ServerName, Module, Args, Options). +start_link(T) -> + proc_lib:start_link(?MODULE, init, [T], infinity, []). + state() -> call(state). @@ -274,8 +290,42 @@ uptime() -> %%% # init/1 %%% ---------------------------------------------------------- +%% ?SERVER start. init([]) -> - {ok, #state{}}. + {ok, #state{}}; + +%% Child start as a consequence of add_transport. +init({SvcName, Type, Opts}) -> + Res = try + add(SvcName, Type, Opts) + catch + ?FAILURE(Reason) -> {error, Reason} + end, + proc_lib:init_ack({ok, self(), Res}), + sleep(Res). + +%% sleep/1 + +sleep({ok, _}) -> + sleep(); + +sleep({error, _}) -> + ok. %% die + +%% sleep/0 + +sleep() -> + proc_lib:hibernate(?MODULE, remove, []). + +%% remove/0 + +remove() -> + receive + {?MODULE, stop} -> + ok; + _ -> + sleep() + end. %%% ---------------------------------------------------------- %%% # handle_call/2 @@ -404,19 +454,22 @@ sync({start_service, SvcName, Opts}) -> sync({stop_service, SvcName}) -> stop(SvcName); +%% Start a child whose only purpose is to be alive for the lifetime of +%% the transport configuration and publish itself in diameter_reg. +%% This is to provide a way for processes to to be notified when the +%% configuration is removed (diameter_reg:subscribe/2). sync({add, SvcName, Type, Opts}) -> - try - add(SvcName, Type, Opts) - catch - ?FAILURE(Reason) -> {error, Reason} - end; + {ok, _Pid, Res} = diameter_config_sup:start_child({SvcName, Type, Opts}), + Res; sync({remove, SvcName, Pred}) -> - remove(select([{#transport{service = '$1', _ = '_'}, + Recs = select([{#transport{service = '$1', _ = '_'}, [{'=:=', '$1', {const, SvcName}}], ['$_']}]), - SvcName, - Pred). + F = fun(#transport{ref = R, type = T, options = O}) -> + Pred(R,T,O) + end, + remove(SvcName, lists:filter(F, Recs)). %% start/3 @@ -503,6 +556,7 @@ add(SvcName, Type, Opts) -> ok = transport_opts(Opts), Ref = make_ref(), + true = diameter_reg:add_new(?TRANSPORT_KEY(Ref)), T = {Ref, Type, Opts}, %% The call to the service returns error if the service isn't %% started yet, which is harmless. The transport will be started @@ -594,26 +648,30 @@ start_transport(SvcName, T) -> No end. -%% remove/3 - -remove(L, SvcName, Pred) -> - rm(SvcName, lists:filter(fun(#transport{ref = R, type = T, options = O}) -> - Pred(R,T,O) - end, - L)). +%% remove/2 -rm(_, []) -> +remove(_, []) -> ok; -rm(SvcName, L) -> + +remove(SvcName, L) -> Refs = lists:map(fun(#transport{ref = R}) -> R end, L), case stop_transport(SvcName, Refs) of ok -> + lists:foreach(fun stop_child/1, Refs), diameter_stats:flush(Refs), lists:foreach(fun delete_object/1, L); {error, _} = No -> No end. +stop_child(Ref) -> + case diameter_reg:match(?TRANSPORT_KEY(Ref)) of + [{_, Pid}] -> %% tell the transport-specific child to die + Pid ! {?MODULE, stop}; + [] -> %% already removed/dead + ok + end. + stop_transport(SvcName, Refs) -> case diameter_service:stop_transport(SvcName, Refs) of ok -> diff --git a/lib/diameter/src/base/diameter_config_sup.erl b/lib/diameter/src/base/diameter_config_sup.erl new file mode 100644 index 0000000000..9524573378 --- /dev/null +++ b/lib/diameter/src/base/diameter_config_sup.erl @@ -0,0 +1,58 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2016. All Rights Reserved. +%% +%% The contents of this file are subject to the Erlang Public License, +%% Version 1.1, (the "License"); you may not use this file except in +%% compliance with the License. You should have received a copy of the +%% Erlang Public License along with this software. If not, it can be +%% retrieved online at http://www.erlang.org/. +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and limitations +%% under the License. +%% +%% %CopyrightEnd% +%% + +%% +%% Supervisor for config processes. +%% + +-module(diameter_config_sup). + +-behaviour(supervisor). + +%% interface +-export([start_link/0, %% supervisor start + start_child/1]). %% config start + +-export([init/1]). + +-define(NAME, ?MODULE). %% supervisor name + +%% start_link/0 + +start_link() -> + SupName = {local, ?NAME}, + supervisor:start_link(SupName, ?MODULE, []). + +%% start_child/1 + +start_child(T) -> + supervisor:start_child(?NAME, [T]). + +%% init/1 + +init([]) -> + Mod = diameter_config, + Flags = {simple_one_for_one, 0, 1}, + ChildSpec = {Mod, + {Mod, start_link, []}, + temporary, + 1000, + worker, + [Mod]}, + {ok, {Flags, [ChildSpec]}}. diff --git a/lib/diameter/src/base/diameter_sup.erl b/lib/diameter/src/base/diameter_sup.erl index e89ede9843..482289cb9a 100644 --- a/lib/diameter/src/base/diameter_sup.erl +++ b/lib/diameter/src/base/diameter_sup.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2010-2015. All Rights Reserved. +%% Copyright Ericsson AB 2010-2016. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -34,6 +34,7 @@ -export([init/1]). -define(CHILDREN, [diameter_misc_sup, + diameter_config_sup, diameter_watchdog_sup, diameter_peer_fsm_sup, diameter_transport_sup, diff --git a/lib/diameter/src/modules.mk b/lib/diameter/src/modules.mk index 3b223ea391..4e4ce60ddf 100644 --- a/lib/diameter/src/modules.mk +++ b/lib/diameter/src/modules.mk @@ -1,7 +1,7 @@ # %CopyrightBegin% # -# Copyright Ericsson AB 2010-2015. All Rights Reserved. +# Copyright Ericsson AB 2010-2016. All Rights Reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. @@ -37,6 +37,7 @@ RT_MODULES = \ base/diameter_callback \ base/diameter_capx \ base/diameter_config \ + base/diameter_config_sup \ base/diameter_codec \ base/diameter_dict \ base/diameter_lib \ diff --git a/lib/diameter/src/transport/diameter_sctp.erl b/lib/diameter/src/transport/diameter_sctp.erl index 8a80ce630a..4a005b853d 100644 --- a/lib/diameter/src/transport/diameter_sctp.erl +++ b/lib/diameter/src/transport/diameter_sctp.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2010-2015. All Rights Reserved. +%% Copyright Ericsson AB 2010-2016. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -61,10 +61,6 @@ %% Remote addresses to accept connections from. -define(DEFAULT_ACCEPT, []). %% any -%% How long a listener with no associations lives before offing -%% itself. --define(LISTENER_TIMEOUT, 30000). - %% How long to wait for a transport process to attach after %% association establishment. -define(ACCEPT_TIMEOUT, 5000). @@ -104,7 +100,6 @@ socket :: gen_sctp:sctp_socket(), count = 0 :: uint(), %% attached transport processes pending = {0, queue:new()}, - tref :: reference() | undefined, accept :: [match()]}). %% Field pending implements two queues: the first of transport-to-be %% processes to which an association has been assigned but for which @@ -216,14 +211,15 @@ init(T) -> %% A process owning a listening socket. i({listen, Ref, {Opts, Addrs}}) -> + [_] = diameter_config:subscribe(Ref, transport), %% assert existence {[Matches], Rest} = proplists:split(Opts, [accept]), {LAs, Sock} = AS = open(Addrs, Rest, ?DEFAULT_PORT), ok = gen_sctp:listen(Sock, true), true = diameter_reg:add_new({?MODULE, listener, {Ref, AS}}), proc_lib:init_ack({ok, self(), LAs}), - start_timer(#listener{ref = Ref, - socket = Sock, - accept = [[M] || {accept, M} <- Matches]}); + #listener{ref = Ref, + socket = Sock, + accept = [[M] || {accept, M} <- Matches]}; %% A connecting transport. i({connect, Pid, Opts, Addrs, Ref}) -> @@ -431,13 +427,6 @@ putr(Key, Val) -> getr(Key) -> get({?MODULE, Key}). -%% start_timer/1 - -start_timer(#listener{count = 0} = S) -> - S#listener{tref = erlang:start_timer(?LISTENER_TIMEOUT, self(), close)}; -start_timer(S) -> - S. - %% l/2 %% %% Transition listener state. @@ -455,12 +444,10 @@ l({sctp, Sock, _RA, _RP, Data} = T, #listener{socket = Sock, l({'DOWN', _MRef, process, TPid, _}, #listener{pending = {_,Q}} = S) -> down(queue:member(TPid, Q), TPid, S); -%% Timeout after the last accepting process has died. -l({timeout, TRef, close = T}, #listener{tref = TRef, - count = 0}) -> - x(T); -l({timeout, _, close}, #listener{} = S) -> - S. +%% Transport has been removed. +l({transport, remove, _} = T, #listener{socket = Sock}) -> + gen_sctp:close(Sock), + x(T). %% down/3 %% @@ -472,15 +459,15 @@ down(true, TPid, #listener{pending = {N,Q}, = S) -> NQ = queue:filter(fun(P) -> P /= TPid end, Q), if N < 0 -> %% awaiting an association ... - start_timer(S#listener{count = K-1, - pending = {N+1, NQ}}); + S#listener{count = K-1, + pending = {N+1, NQ}}; true -> %% ... or one has been assigned S#listener{pending = {N-1, NQ}} end; %% ... or one that's already attached. down(false, _TPid, #listener{count = K} = S) -> - start_timer(S#listener{count = K-1}). + S#listener{count = K-1}. %% t/2 %% diff --git a/lib/diameter/src/transport/diameter_tcp.erl b/lib/diameter/src/transport/diameter_tcp.erl index 6a5e5fe89d..546c2cfa5e 100644 --- a/lib/diameter/src/transport/diameter_tcp.erl +++ b/lib/diameter/src/transport/diameter_tcp.erl @@ -57,7 +57,6 @@ -define(ERROR(T), erlang:error({T, ?MODULE, ?LINE})). -define(DEFAULT_PORT, 3868). %% RFC 3588, ch 2.1 --define(LISTENER_TIMEOUT, 30000). -define(DEFAULT_FRAGMENT_TIMEOUT, 1000). -define(IS_UINT32(N), (is_integer(N) andalso 0 =< N andalso 0 == N bsr 32)). @@ -73,8 +72,10 @@ %% Listener process state. -record(listener, {socket :: inet:socket(), - count = 1 :: non_neg_integer(), - tref :: reference() | undefined}). + count = 1 :: non_neg_integer()}). %% accepting processes +%% The count of accepting processes was previously used to terminate +%% the listening process, but diameter_reg:subscribe/2 is now used for +%% this. Leave the the count for trace purposes. %% Monitor process state. -record(monitor, @@ -240,6 +241,7 @@ i(#monitor{parent = Pid, transport = TPid} = S) -> %% gen_tcp seems to so. Links should be left to supervisors. i({listen, LRef, APid, {Mod, Opts, Addrs}}) -> + [_] = diameter_config:subscribe(LRef, transport), %% assert existence {[LA, LP], Rest} = proplists:split(Opts, [ip, port]), LAddrOpt = get_addr(LA, Addrs), LPort = get_port(LP), @@ -248,7 +250,7 @@ i({listen, LRef, APid, {Mod, Opts, Addrs}}) -> true = diameter_reg:add_new({?MODULE, listener, {LRef, {LAddr, LSock}}}), proc_lib:init_ack({ok, self(), {LAddr, LSock}}), monitor(process, APid), - start_timer(#listener{socket = LSock}). + #listener{socket = LSock}. laddr([], Mod, Sock) -> {ok, {Addr, _Port}} = sockname(Mod, Sock), @@ -484,13 +486,6 @@ putr(Key, Val) -> getr(Key) -> get({?MODULE, Key}). -%% start_timer/1 - -start_timer(#listener{count = 0} = S) -> - S#listener{tref = erlang:start_timer(?LISTENER_TIMEOUT, self(), close)}; -start_timer(S) -> - S. - %% m/2 %% %% Transition monitor state. @@ -512,21 +507,19 @@ m({'DOWN', _, process, Pid, _}, #monitor{parent = Pid, %% %% Transition listener state. -%% Another accept transport is attaching. +%% An accepting transport is attaching. l({accept, TPid}, #listener{count = N} = S) -> monitor(process, TPid), S#listener{count = N+1}; %% Accepting process has died. l({'DOWN', _, process, _, _}, #listener{count = N} = S) -> - start_timer(S#listener{count = N-1}); + S#listener{count = N-1}; -%% Timeout after the last accepting process has died. -l({timeout, TRef, close = T}, #listener{tref = TRef, - count = 0}) -> - x(T); -l({timeout, _, close}, #listener{} = S) -> - S. +%% Transport has been removed. +l({transport, remove, _} = T, #listener{socket = Sock}) -> + gen_tcp:close(Sock), + x(T). %% t/2 %% diff --git a/lib/diameter/test/diameter_transport_SUITE.erl b/lib/diameter/test/diameter_transport_SUITE.erl index 53d2d6660e..f2884eacb4 100644 --- a/lib/diameter/test/diameter_transport_SUITE.erl +++ b/lib/diameter/test/diameter_transport_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2010-2015. All Rights Reserved. +%% Copyright Ericsson AB 2010-2016. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -140,7 +140,9 @@ sctp_accept(Config) -> -define(PEER_COUNT, 8). accept(Prot) -> - T = {Prot, make_ref()}, + Ref = make_ref(), + true = diameter_reg:add_new({diameter_config, transport, Ref}), %% fake it + T = {Prot, Ref}, [] = ?util:run(?util:scramble(acc(2*?PEER_COUNT, T, []))). acc(0, _, Acc) -> |