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-rw-r--r--lib/diameter/src/base/diameter_peer_fsm.erl33
-rw-r--r--lib/diameter/src/base/diameter_traffic.erl30
-rw-r--r--lib/diameter/src/base/diameter_watchdog.erl64
-rw-r--r--lib/diameter/src/transport/diameter_tcp.erl14
4 files changed, 102 insertions, 39 deletions
diff --git a/lib/diameter/src/base/diameter_peer_fsm.erl b/lib/diameter/src/base/diameter_peer_fsm.erl
index a9ee4940a3..83e0dda501 100644
--- a/lib/diameter/src/base/diameter_peer_fsm.erl
+++ b/lib/diameter/src/base/diameter_peer_fsm.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2015. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2016. 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
@@ -426,8 +426,8 @@ transition({connection_timeout, _}, _) ->
ok;
%% Incoming message from the transport.
-transition({diameter, {recv, Pkt}}, S) ->
- recv(Pkt, S);
+transition({diameter, {recv, MsgT}}, S) ->
+ incoming(MsgT, S);
%% Timeout when still in the same state ...
transition({timeout = T, PS}, #state{state = PS}) ->
@@ -553,6 +553,28 @@ encode(Rec, Dict) ->
diameter_codec:encode(Dict, #diameter_packet{header = Hdr,
msg = Rec}).
+%% incoming/2
+
+incoming({Msg, NPid}, S) ->
+ try recv(Msg, S) of
+ T ->
+ NPid ! {diameter, discard},
+ T
+ catch
+ {?MODULE, Name, Pkt} ->
+ S#state.parent ! {recv, self(), Name, {Pkt, NPid}},
+ rcv(Name, Pkt, S)
+ end;
+
+incoming(Msg, S) ->
+ try
+ recv(Msg, S)
+ catch
+ {?MODULE, Name, Pkt} ->
+ S#state.parent ! {recv, self(), Name, Pkt},
+ rcv(Name, Pkt, S)
+ end.
+
%% recv/2
recv(#diameter_packet{header = #diameter_header{} = Hdr}
@@ -607,9 +629,8 @@ recv1('DPA' = N,
%% Any other message with a header and no length errors: send to the
%% parent.
-recv1(Name, Pkt, #state{parent = Pid} = S) ->
- Pid ! {recv, self(), Name, Pkt},
- rcv(Name, Pkt, S).
+recv1(Name, Pkt, #state{}) ->
+ throw({?MODULE, Name, Pkt}).
%% recv/3
diff --git a/lib/diameter/src/base/diameter_traffic.erl b/lib/diameter/src/base/diameter_traffic.erl
index 5d39c08213..fba4d3736b 100644
--- a/lib/diameter/src/base/diameter_traffic.erl
+++ b/lib/diameter/src/base/diameter_traffic.erl
@@ -232,7 +232,20 @@ pending(TPids) ->
%% used to come through the service process but this avoids that
%% becoming a bottleneck.
-receive_message(TPid, Pkt, Dict0, RecvData)
+receive_message(TPid, {Pkt, NPid}, Dict0, RecvData) ->
+ NPid ! {diameter, case incoming(TPid, Pkt, Dict0, RecvData) of
+ Pid when is_pid(Pid) ->
+ {request, Pid};
+ _ ->
+ discard
+ end};
+
+receive_message(TPid, Pkt, Dict0, RecvData) ->
+ incoming(TPid, Pkt, Dict0, RecvData).
+
+%% incoming/4
+
+incoming(TPid, Pkt, Dict0, RecvData)
when is_pid(TPid) ->
#diameter_packet{header = #diameter_header{is_request = R}} = Pkt,
recv(R,
@@ -246,7 +259,13 @@ receive_message(TPid, Pkt, Dict0, RecvData)
%% Incoming request ...
recv(true, false, TPid, Pkt, Dict0, T) ->
- spawn_request(TPid, Pkt, Dict0, T);
+ try
+ spawn_request(TPid, Pkt, Dict0, T)
+ catch
+ error: system_limit = E -> %% discard
+ ?LOG(error, E),
+ {error, E}
+ end;
%% ... answer to known request ...
recv(false, #request{ref = Ref, handler = Pid} = Req, _, Pkt, Dict0, _) ->
@@ -275,12 +294,7 @@ spawn_request(TPid, Pkt, Dict0, RecvData) ->
spawn_request(TPid, Pkt, Dict0, ?DEFAULT_SPAWN_OPTS, RecvData).
spawn_request(TPid, Pkt, Dict0, Opts, RecvData) ->
- try
- spawn_opt(fun() -> recv_request(TPid, Pkt, Dict0, RecvData) end, Opts)
- catch
- error: system_limit = E -> %% discard
- ?LOG(error, E)
- end.
+ spawn_opt(fun() -> recv_request(TPid, Pkt, Dict0, RecvData) end, Opts).
%% ---------------------------------------------------------------------------
%% recv_request/4
diff --git a/lib/diameter/src/base/diameter_watchdog.erl b/lib/diameter/src/base/diameter_watchdog.erl
index 26bca7a5bc..43a8a5223f 100644
--- a/lib/diameter/src/base/diameter_watchdog.erl
+++ b/lib/diameter/src/base/diameter_watchdog.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2010-2015. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2016. 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
@@ -447,8 +447,14 @@ transition({'DOWN', _, process, TPid, _Reason} = D,
end;
%% Incoming message.
-transition({recv, TPid, Name, Pkt}, #watchdog{transport = TPid} = S) ->
- recv(Name, Pkt, S);
+transition({recv, TPid, Name, PktT}, #watchdog{transport = TPid} = S) ->
+ try
+ incoming(Name, PktT, S)
+ catch
+ #watchdog{dictionary = Dict0, receive_data = T} = NS ->
+ diameter_traffic:receive_message(TPid, PktT, Dict0, T),
+ NS
+ end;
%% Current watchdog has timed out.
transition({timeout, TRef, tw}, #watchdog{tref = TRef} = S) ->
@@ -576,22 +582,32 @@ send_watchdog(#watchdog{pending = false,
%% Don't count encode errors since we don't expect any on DWR/DWA.
+%% incoming/3
+
+incoming(Name, {Pkt, NPid}, S) ->
+ NS = recv(Name, Pkt, S),
+ NPid ! {diameter, discard},
+ NS;
+
+incoming(Name, Pkt, S) ->
+ recv(Name, Pkt, S).
+
%% recv/3
recv(Name, Pkt, S) ->
- try rcv(Name, S) of
+ try rcv(Name, Pkt, rcv(Name, S)) of
#watchdog{} = NS ->
- rcv(Name, Pkt, S),
- NS
+ throw(NS)
catch
- {?MODULE, throwaway, #watchdog{} = NS} ->
+ #watchdog{} = NS -> %% throwaway
NS
end.
%% rcv/3
rcv('DWR', Pkt, #watchdog{transport = TPid,
- dictionary = Dict0}) ->
+ dictionary = Dict0}
+ = S) ->
?LOG(recv, 'DWR'),
DPkt = diameter_codec:decode(Dict0, Pkt),
diameter_traffic:incr(recv, DPkt, TPid, Dict0),
@@ -608,32 +624,30 @@ rcv('DWR', Pkt, #watchdog{transport = TPid,
send(TPid, {send, #diameter_packet{header = H,
transport_data = T,
bin = Bin}}),
- ?LOG(send, 'DWA');
+ ?LOG(send, 'DWA'),
+ throw(S);
rcv('DWA', Pkt, #watchdog{transport = TPid,
- dictionary = Dict0}) ->
+ dictionary = Dict0}
+ = S) ->
?LOG(recv, 'DWA'),
diameter_traffic:incr(recv, Pkt, TPid, Dict0),
diameter_traffic:incr_rc(recv,
diameter_codec:decode(Dict0, Pkt),
TPid,
- Dict0);
+ Dict0),
+ throw(S);
-rcv(N, _, _)
+rcv(N, _, S)
when N == 'CER';
N == 'CEA';
N == 'DPR' ->
- false;
+ throw(S);
%% DPR can be sent explicitly with diameter:call/4. Only the
%% corresponding DPAs arrive here.
-rcv(_, Pkt, #watchdog{transport = TPid,
- dictionary = Dict0,
- receive_data = T}) ->
- diameter_traffic:receive_message(TPid, Pkt, Dict0, T).
-
-throwaway(S) ->
- throw({?MODULE, throwaway, S}).
+rcv(_, _, S)->
+ S.
%% rcv/2
%%
@@ -650,20 +664,20 @@ throwaway(S) ->
%% INITIAL Receive non-DWA Throwaway() INITIAL
rcv('DWA', #watchdog{status = initial} = S) ->
- throwaway(S#watchdog{pending = false});
+ throw(S#watchdog{pending = false});
rcv(_, #watchdog{status = initial} = S) ->
- throwaway(S);
+ throw(S);
%% DOWN Receive DWA Pending = FALSE
%% Throwaway() DOWN
%% DOWN Receive non-DWA Throwaway() DOWN
rcv('DWA', #watchdog{status = down} = S) ->
- throwaway(S#watchdog{pending = false});
+ throw(S#watchdog{pending = false});
rcv(_, #watchdog{status = down} = S) ->
- throwaway(S);
+ throw(S);
%% OKAY Receive DWA Pending = FALSE
%% SetWatchdog() OKAY
@@ -719,7 +733,7 @@ rcv('DWR', #watchdog{status = reopen} = S) ->
S; %% ensure DWA: the RFC isn't explicit about answering
rcv(_, #watchdog{status = reopen} = S) ->
- throwaway(S).
+ throw(S).
%% timeout/1
%%
diff --git a/lib/diameter/src/transport/diameter_tcp.erl b/lib/diameter/src/transport/diameter_tcp.erl
index 91e8d26d36..7f9255c097 100644
--- a/lib/diameter/src/transport/diameter_tcp.erl
+++ b/lib/diameter/src/transport/diameter_tcp.erl
@@ -878,6 +878,20 @@ throttle(ok, #transport{parent = Pid, throttled = Msg} = S) ->
throttle({ok = T, F}, S) ->
throttle(T, S#transport{throttle_cb = F});
+%% Callback says to accept a received message and acknowledged the
+%% returned pid with a {request, Pid} message if a request pid is
+%% spawned, a discard message otherwise. The latter does not mean that
+%% the message was necessarily discarded: it could have been an
+%% answer.
+throttle(NPid, #transport{parent = Pid, throttled = Msg} = S)
+ when is_pid(NPid), is_binary(Msg) ->
+ diameter_peer:recv(Pid, {Msg, NPid}),
+ throttle(S#transport{throttled = true});
+
+throttle({NPid, F}, #transport{throttled = Msg} = S)
+ when is_pid(NPid), is_binary(Msg) ->
+ throttle(NPid, S#transport{throttle_cb = F});
+
%% Callback says to ask again in the specified number of milliseconds.
throttle({timeout, Tmo}, #transport{} = S) ->
erlang:send_after(Tmo, self(), throttle),
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 14:07:54 +0000