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-rw-r--r--lib/snmp/src/manager/snmpm_net_if.erl237
1 files changed, 195 insertions, 42 deletions
diff --git a/lib/snmp/src/manager/snmpm_net_if.erl b/lib/snmp/src/manager/snmpm_net_if.erl
index bdde8a5623..cb72871177 100644
--- a/lib/snmp/src/manager/snmpm_net_if.erl
+++ b/lib/snmp/src/manager/snmpm_net_if.erl
@@ -17,7 +17,9 @@
%% %CopyrightEnd%
%%
+-ifndef(snmpm_net_if_mt).
-module(snmpm_net_if).
+-endif.
-behaviour(gen_server).
-behaviour(snmpm_network_interface).
@@ -149,6 +151,64 @@ filter_reset(Pid) ->
%%%-------------------------------------------------------------------
+%%% Multi-thread manager
+%%%-------------------------------------------------------------------
+
+-ifdef(snmpm_net_if_mt).
+
+%% This function is called through the macro below to
+%% (in the not multithreaded case) avoid creating the
+%% Failer/4 fun, and to avoid calling the Worker through a fun
+%% (now it shall not be a fun, just a code snippet).
+
+worker(Worker, Failer, #state{log = Log} = State) ->
+ Verbosity = get(verbosity),
+ spawn_opt(
+ fun () ->
+ try
+ put(sname, mnifw),
+ put(verbosity, Verbosity),
+ NewState =
+ case do_reopen_log(Log) of
+ Log ->
+ State;
+ NewLog ->
+ State#state{log = NewLog}
+ end,
+ Worker(NewState)
+ of
+ Result ->
+ %% Winds up in handle_info {'DOWN', ...}
+ erlang:exit({net_if_worker, Result})
+ catch
+ Class:Reason ->
+ %% Winds up in handle_info {'DOWN', ...}
+ erlang:exit(
+ {net_if_worker, Failer,
+ Class, Reason, erlang:get_stacktrace()})
+ end
+ end,
+ [monitor]).
+-define(
+ worker(S, Worker, Failer, State),
+ begin
+ worker(
+ fun (S) -> begin Worker end end,
+ begin Failer end,
+ (State))
+ end).
+
+-else.
+
+-define(
+ worker(S, Worker, _Failer, State),
+ begin (S) = (State), begin Worker end end).
+
+-endif.
+
+
+
+%%%-------------------------------------------------------------------
%%% Callback functions from gen_server
%%%-------------------------------------------------------------------
@@ -168,6 +228,14 @@ init([Server, NoteStore]) ->
{error, Reason} ->
{stop, Reason}
end.
+
+-ifdef(snmpm_net_if_mt).
+%% This should really be protected, but it also needs to
+%% be writable for the worker processes, so...
+-define(inform_table_opts, [set, public, named_table, {keypos, 1}]).
+-else.
+-define(inform_table_opts, [set, protected, named_table, {keypos, 1}]).
+-endif.
do_init(Server, NoteStore) ->
process_flag(trap_exit, true),
@@ -177,8 +245,7 @@ do_init(Server, NoteStore) ->
process_flag(priority, Prio),
%% -- Create inform request table --
- ets:new(snmpm_inform_request_table,
- [set, protected, named_table, {keypos, 1}]),
+ ets:new(snmpm_inform_request_table, ?inform_table_opts),
%% -- Verbosity --
{ok, Verbosity} = snmpm_config:system_info(net_if_verbosity),
@@ -189,6 +256,7 @@ do_init(Server, NoteStore) ->
%% -- MPD --
{ok, Vsns} = snmpm_config:system_info(versions),
MpdState = snmpm_mpd:init(Vsns),
+ ?vdebug("MpdState: ~w", [MpdState]),
%% -- Module dependent options --
{ok, Opts} = snmpm_config:system_info(net_if_options),
@@ -205,6 +273,7 @@ do_init(Server, NoteStore) ->
%% -- Audit trail log ---
{ok, ATL} = snmpm_config:system_info(audit_trail_log),
Log = do_init_log(ATL),
+ ?vdebug("Log: ~w", [Log]),
{ok, DomainAddresses} = snmpm_config:system_info(transports),
?vdebug("DomainAddresses: ~w",[DomainAddresses]),
@@ -344,20 +413,65 @@ do_init_log(true) ->
Name, File, SeqNoGen, Size, Repair, true) of
{ok, Log} ->
?vdebug("log created: ~w", [Log]),
- {Log, Type};
+ {Name, Log, Type};
{error, Reason} ->
throw({error, {failed_create_audit_log, Reason}})
end;
_ ->
case snmp_log:create(Name, File, Size, Repair, true) of
{ok, Log} ->
- {Log, Type};
+ ?vdebug("log created: ~w", [Log]),
+ {Name, Log, Type};
{error, Reason} ->
throw({error, {failed_create_audit_log, Reason}})
end
end.
-
+-ifdef(snmpm_net_if_mt).
+do_reopen_log(undefined) ->
+ undefined;
+do_reopen_log({Name, Log, Type}) ->
+ case snmp_log:open(Name, Log) of
+ {ok, NewLog} ->
+ {Name, NewLog, Type};
+ {error, Reason} ->
+ warning_msg(
+ "NetIf worker ~p failed to open ATL:~n"
+ " ~p", [self(), Reason]),
+ undefined
+ end.
+-endif.
+
+%% Close log
+do_close_log(undefined) ->
+ ok;
+do_close_log({_Name, Log, _Type}) ->
+ (catch snmp_log:sync(Log)),
+ (catch snmp_log:close(Log)),
+ ok;
+do_close_log(_) ->
+ ok.
+
+%% Log
+logger(undefined, _Type, _Domain, _Addr) ->
+ fun(_) ->
+ ok
+ end;
+logger({_Name, Log, Types}, Type, Domain, Addr) ->
+ case lists:member(Type, Types) of
+ true ->
+ AddrString =
+ iolist_to_binary(snmp_conf:mk_addr_string({Domain, Addr})),
+ fun(Msg) ->
+ snmp_log:log(Log, Msg, AddrString)
+ end;
+ false ->
+ fun(_) ->
+ ok
+ end
+ end.
+
+
%%--------------------------------------------------------------------
%% Func: handle_call/3
%% Returns: {reply, Reply, State} |
@@ -475,11 +589,42 @@ handle_info({disk_log, _Node, Log, Info}, State) ->
State2 = handle_disk_log(Log, Info, State),
{noreply, State2};
+handle_info({'DOWN', _, _, _, _} = Info, State) ->
+ handle_info_down(Info, State);
+
handle_info(Info, State) ->
+ handle_info_unknown(Info, State).
+
+
+handle_info_unknown(Info, State) ->
warning_msg("received unknown info: ~n~p", [Info]),
{noreply, State}.
+-ifdef(snmpm_net_if_mt).
+handle_info_down(
+ {'DOWN', _MRef, process, _Pid,
+ {net_if_worker, _Result}},
+ State) ->
+ ?vdebug("received DOWN message from net_if worker [~w]: "
+ "~n Result: ~p", [_Pid, _Result]),
+ {noreply, State};
+handle_info_down(
+ {'DOWN', _MRef, process, Pid,
+ {net_if_worker, Failer, Class, Reason, Stacktrace} = _ExitStatus},
+ State) ->
+ ?vdebug("received DOWN message from net_if worker [~w]: "
+ "~n ExitStatus: ~p", [Pid, _ExitStatus]),
+ Failer(Pid, Class, Reason, Stacktrace),
+ {noreply, State};
+handle_info_down(Info, State) ->
+ handle_info_unknown(Info, State).
+-else.
+handle_info_down(Info, State) ->
+ handle_info_unknown(Info, State).
+-endif.
+
+
%%--------------------------------------------------------------------
%% Func: terminate/2
%% Purpose: Shutdown the server
@@ -493,14 +638,6 @@ terminate(Reason, #state{log = Log, irgc = IrGcRef}) ->
ok.
-do_close_log({Log, _Type}) ->
- (catch snmp_log:sync(Log)),
- (catch snmp_log:close(Log)),
- ok;
-do_close_log(_) ->
- ok.
-
-
%%----------------------------------------------------------------------
%% Func: code_change/3
%% Purpose: Convert process state when code is changed
@@ -519,7 +656,20 @@ code_change(_Vsn, State, _Extra) ->
%%% Internal functions
%%%-------------------------------------------------------------------
-maybe_handle_recv_msg(
+maybe_handle_recv_msg(Domain, Addr, Bytes, State) ->
+ ?worker(
+ S, maybe_handle_recv_msg_mt(Domain, Addr, Bytes, S),
+ fun (Pid, Class, Reason, Stacktrace) ->
+ warning_msg(
+ "Worker process (~p) terminated "
+ "while processing (incomming) message from %s:~n"
+ "~w:~w at ~p",
+ [Pid, snmp_conf:mk_addr_string({Domain, Addr}),
+ Class, Reason, Stacktrace])
+ end,
+ State).
+
+maybe_handle_recv_msg_mt(
Domain, Addr, Bytes,
#state{filter = FilterMod, transports = Transports} = State) ->
{Arg1, Arg2} = fix_filter_address(Transports, {Domain, Addr}),
@@ -669,6 +819,19 @@ handle_inform_request(
end.
handle_inform_response(Ref, Domain, Addr, State) ->
+ ?worker(
+ S, handle_inform_response_mt(Ref, Domain, Addr, S),
+ fun (Pid, Class, Reason, Stacktrace) ->
+ warning_msg(
+ "Worker process (~p) terminated "
+ "while processing (outgoing) inform response for %s:~n"
+ "~w:~w at ~p",
+ [Pid, snmp_conf:mk_addr_string({Domain, Addr}),
+ Class, Reason, Stacktrace])
+ end,
+ State).
+
+handle_inform_response_mt(Ref, Domain, Addr, State) ->
Key = {Ref, Domain, Addr},
case ets:lookup(snmpm_inform_request_table, Key) of
[{Key, _, {Vsn, ACM, RePdu}}] ->
@@ -737,18 +900,30 @@ irgc_stop(undefined) ->
irgc_stop(Ref) ->
(catch erlang:cancel_timer(Ref)).
-
-maybe_handle_send_pdu(
+maybe_handle_send_pdu(Pdu, Vsn, MsgData, Domain, Addr, State) ->
+ ?worker(
+ S, maybe_handle_send_pdu_mt(Pdu, Vsn, MsgData, Domain, Addr, S),
+ fun (Pid, Class, Reason, Stacktrace) ->
+ warning_msg(
+ "Worker process (~p) terminated "
+ "while processing (outgoing) pdu for %s:~n"
+ "~w:~w at ~p",
+ [Pid, snmp_conf:mk_addr_string({Domain, Addr}),
+ Class, Reason, Stacktrace])
+ end,
+ State).
+
+maybe_handle_send_pdu_mt(
Pdu, Vsn, MsgData, Domain, Addr,
#state{filter = FilterMod, transports = Transports} = State) ->
{Arg1, Arg2} = fix_filter_address(Transports, {Domain, Addr}),
case (catch FilterMod:accept_send_pdu(Arg1, Arg2, pdu_type_of(Pdu))) of
false ->
- inc(netIfPduOutDrops),
- ok;
+ inc(netIfPduOutDrops);
_ ->
handle_send_pdu(Pdu, Vsn, MsgData, Domain, Addr, State)
- end.
+ end,
+ ok.
handle_send_pdu(
Pdu, Vsn, MsgData, Domain, Addr,
@@ -766,8 +941,7 @@ handle_send_pdu(
?vlog("PDU not sent: "
"~n PDU: ~p"
"~n Reason: ~p", [Pdu, Reason]),
- Pid ! {snmp_error, Pdu, Reason},
- ok
+ Pid ! {snmp_error, Pdu, Reason}
end.
@@ -1087,27 +1261,6 @@ t() ->
%% -------------------------------------------------------------------
-logger(undefined, _Type, _Domain, _Addr) ->
- fun(_) ->
- ok
- end;
-logger({Log, Types}, Type, Domain, Addr) ->
- case lists:member(Type, Types) of
- true ->
- AddrString =
- iolist_to_binary(snmp_conf:mk_addr_string({Domain, Addr})),
- fun(Msg) ->
- snmp_log:log(Log, Msg, AddrString)
- end;
- false ->
- fun(_) ->
- ok
- end
- end.
-
-
-%% -------------------------------------------------------------------
-
%% info_msg(F, A) ->
%% ?snmpm_info("NET-IF server: " ++ F, A).
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-26 08:00:23 +0000