diff options
| -rw-r--r-- | lib/snmp/test/modules.mk | 3 | ||||
| -rw-r--r-- | lib/snmp/test/snmp_agent_test.erl | 13 | ||||
| -rw-r--r-- | lib/snmp/test/snmp_test_mgr.erl | 3 | ||||
| -rw-r--r-- | lib/snmp/test/snmp_test_mgr_counter_server.erl | 152 |
4 files changed, 169 insertions, 2 deletions
diff --git a/lib/snmp/test/modules.mk b/lib/snmp/test/modules.mk index 3d658bf8e8..fd8315ec4d 100644 --- a/lib/snmp/test/modules.mk +++ b/lib/snmp/test/modules.mk @@ -2,7 +2,7 @@ # %CopyrightBegin% # -# Copyright Ericsson AB 2004-2012. All Rights Reserved. +# Copyright Ericsson AB 2004-2014. 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 @@ -42,6 +42,7 @@ TEST_UTIL_MODULES = \ snmp_test_manager \ snmp_test_mgr \ snmp_test_mgr_misc \ + snmp_test_mgr_counter_server \ sa \ klas3 \ test1 \ diff --git a/lib/snmp/test/snmp_agent_test.erl b/lib/snmp/test/snmp_agent_test.erl index 84fa1af71d..a6571548d6 100644 --- a/lib/snmp/test/snmp_agent_test.erl +++ b/lib/snmp/test/snmp_agent_test.erl @@ -555,6 +555,8 @@ init_per_suite(Config0) when is_list(Config0) -> Config3 = [{mib_dir, MibDir}, {std_mib_dir, StdMibDir} | Config2], + snmp_test_mgr_counter_server:start(), + ?DBG("init_per_suite -> end with" "~n Config3: ~p", [Config3]), @@ -565,6 +567,17 @@ end_per_suite(Config) when is_list(Config) -> ?DBG("end_per_suite -> entry with" "~n Config: ~p", [Config]), + case snmp_test_mgr_counter_server:stop() of + {ok, Counters} -> + ?DBG("end_per_suite -> sucessfully stopped counter server" + "~n Counters: ~p", [Counters]); + + {error, Reason} -> + ?DBG("end_per_suite -> failed stopping counter server" + "~n Reason: ~p", [Reason]) + end, + + ?DBG("end_per_suite -> end", []), Config. diff --git a/lib/snmp/test/snmp_test_mgr.erl b/lib/snmp/test/snmp_test_mgr.erl index 40fcbce8f1..d4eb00ff91 100644 --- a/lib/snmp/test/snmp_test_mgr.erl +++ b/lib/snmp/test/snmp_test_mgr.erl @@ -657,7 +657,8 @@ make_vb(Oid) -> #varbind{oid = Oid, variabletype = 'NULL', value = 'NULL'}. make_request_id() -> - random:uniform(16#FFFFFFF-1). + %% random:uniform(16#FFFFFFF-1). + snmp_test_mgr_counter_server:increment(mgr_request_id, 1, 1, 2147483647). echo_pdu(PDU, MiniMIB) -> io:format("~s", [snmp_misc:format_pdu(PDU, MiniMIB)]). diff --git a/lib/snmp/test/snmp_test_mgr_counter_server.erl b/lib/snmp/test/snmp_test_mgr_counter_server.erl new file mode 100644 index 0000000000..db31e0380b --- /dev/null +++ b/lib/snmp/test/snmp_test_mgr_counter_server.erl @@ -0,0 +1,152 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2014-2014. 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% +%% + +%% +%% The reason for this (test) counter server is that the +%% agent test suite is implemented in such a way that the +%% agent is started once and then used for several test cases. +%% Each request is given a request id which *was* generated using +%% random! It is therefor possible, although unlikely, that a +%% request may get a request id that has recently been used, +%% which will cause the agent to silently reject the request. +%% For this reason, we start this server at the start of the +%% agent suite and stop it at the end and all request ids are +%% generated by this server. +%% + +-module(snmp_test_mgr_counter_server). + +-export([start/0, stop/0, increment/4]). + +-define(SERVER, ?MODULE). +-define(TAB, snmp_test_mgr_counter_tab). + + +%%%------------------------------------------------------------------- +%%% API +%%%------------------------------------------------------------------- + +-spec start() -> ok. + +start() -> + Parent = self(), + ReqIdServer = spawn(fun() -> init(Parent) end), + receive + {ReqIdServer, ok} -> + ok; + {ReqIdServer, {error, Reason}} -> + exit({failed_starting_counter_server, Reason}) + after 5000 -> + exit(ReqIdServer, kill), % Cleanup, just in case + exit({failed_starting_counter_server, timeout}) + end. + +-spec stop() -> {ok, Counters :: list()} | {error, Reason :: term()}. + +stop() -> + request(stop). + + +-spec increment(Counter :: atom(), + Initial :: non_neg_integer(), + Increment :: pos_integer(), + Max :: pos_integer()) -> + Next :: pos_integer(). + +increment(Counter, Initial, Increment, Max) -> + Request = {increment, Counter, Initial, Increment, Max}, + case request(Request) of + {ok, ReqId} -> + ReqId; + {error, Reason} -> + exit(Reason) + end. + + +request(Request) -> + Id = make_ref(), + Msg = {self(), Id, Request}, + try + begin + global:send(?SERVER, Msg), + receive + {reply, Id, Reply} -> + {ok, Reply} + end + end + catch + T:E -> + {error, {T, E}} + end. + + +%%%------------------------------------------------------------------- +%%% Internal functions +%%%------------------------------------------------------------------- + +init(Parent) -> + p("starting"), + case global:register_name(?SERVER, self()) of + yes -> + p("name registration ok"), + Parent ! {self(), ok}; + no -> + p("name registration failed"), + Parent ! {self(), registration_failed}, + exit(registration_failed) + end, + ets:new(?TAB, [set, named_table, {keypos, 1}]), + loop(). + +loop() -> + receive + {From, Id, {increment, Counter, Initial, Increment, Max}} -> + Position = 2, + Threshold = Max, + SetValue = Initial, + UpdateOp = {Position, Increment, Threshold, SetValue}, + NextVal = + try ets:update_counter(?TAB, Counter, UpdateOp) of + Next when is_integer(Next) -> + p("increment ~w: (next) ~w", [Counter, Next]), + Next + catch + error:badarg -> + %% Oups, first time + p("increment ~w: (initial) ~w", [Counter, Initial]), + ets:insert(?TAB, {Counter, Initial}), + Initial + end, + From ! {reply, Id, NextVal}, + loop(); + + {From, Id, stop} -> + p("stop"), + Counters = ets:tab2list(?TAB), + From ! {reply, Id, Counters}, + exit(normal) + end. + + +p(F) -> + p(F, []). + +p(F, A) -> + io:format("*** [~s] COUNTER-SERVER [~w] " ++ F ++ "~n", + [snmp_test_lib:formated_timestamp(), self() | A]). |