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-rw-r--r--lib/stdlib/test/gen_statem_SUITE.erl2
-rw-r--r--lib/stdlib/test/stdlib.spec3
-rw-r--r--lib/stdlib/test/stdlib_bench.spec3
-rw-r--r--lib/stdlib/test/stdlib_bench_SUITE.erl237
-rw-r--r--lib/stdlib/test/stdlib_bench_SUITE_data/generic_fsm.erl59
-rw-r--r--lib/stdlib/test/stdlib_bench_SUITE_data/generic_statem.erl58
-rw-r--r--lib/stdlib/test/stdlib_bench_SUITE_data/generic_statem_complex.erl66
7 files changed, 355 insertions, 73 deletions
diff --git a/lib/stdlib/test/gen_statem_SUITE.erl b/lib/stdlib/test/gen_statem_SUITE.erl
index 5b9daecfd3..c747db475a 100644
--- a/lib/stdlib/test/gen_statem_SUITE.erl
+++ b/lib/stdlib/test/gen_statem_SUITE.erl
@@ -21,7 +21,7 @@
-include_lib("common_test/include/ct.hrl").
--compile(export_all).
+-compile([export_all, nowarn_export_all]).
-behaviour(gen_statem).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/lib/stdlib/test/stdlib.spec b/lib/stdlib/test/stdlib.spec
index 1adec67ac9..9c625091a8 100644
--- a/lib/stdlib/test/stdlib.spec
+++ b/lib/stdlib/test/stdlib.spec
@@ -1,3 +1,4 @@
{suites,"../stdlib_test",all}.
-{skip_groups,"../stdlib_test",stdlib_bench_SUITE,[base64,gen_server,unicode],
+{skip_groups,"../stdlib_test",stdlib_bench_SUITE,
+ [base64,gen_server,gen_statem,unicode],
"Benchmark only"}.
diff --git a/lib/stdlib/test/stdlib_bench.spec b/lib/stdlib/test/stdlib_bench.spec
index f82f1ab9b3..7a0da811a0 100644
--- a/lib/stdlib/test/stdlib_bench.spec
+++ b/lib/stdlib/test/stdlib_bench.spec
@@ -5,5 +5,6 @@
{skip_suites,"../stdlib_test",string_SUITE, "bench only"}.
{suites,"../stdlib_test",[stdlib_bench_SUITE]}.
-{skip_groups,"../stdlib_test",stdlib_bench_SUITE,[gen_server_comparison],
+{skip_groups,"../stdlib_test",stdlib_bench_SUITE,
+ [gen_server_comparison,gen_statem_comparison],
"Not a benchmark"}.
diff --git a/lib/stdlib/test/stdlib_bench_SUITE.erl b/lib/stdlib/test/stdlib_bench_SUITE.erl
index 9ad4bae2f5..294898a932 100644
--- a/lib/stdlib/test/stdlib_bench_SUITE.erl
+++ b/lib/stdlib/test/stdlib_bench_SUITE.erl
@@ -30,7 +30,8 @@ suite() -> [{ct_hooks,[{ts_install_cth,[{nodenames,2}]}]}].
all() ->
[{group,unicode},{group,base64},
- {group,gen_server},{group,gen_server_comparison}].
+ {group,gen_server},{group,gen_statem},
+ {group,gen_server_comparison},{group,gen_statem_comparison}].
groups() ->
[{unicode,[{repeat,5}],
@@ -44,20 +45,39 @@ groups() ->
encode_list, encode_list_to_string,
mime_binary_decode, mime_binary_decode_to_string,
mime_list_decode, mime_list_decode_to_string]},
- {gen_server, [{repeat,5}],
- [simple, simple_timer, simple_mon, simple_timer_mon,
- generic, generic_timer]},
+ {gen_server, [{repeat,5}], cases(gen_server)},
+ {gen_statem, [{repeat,3}], cases(gen_statem)},
{gen_server_comparison, [],
[single_small, single_medium, single_big,
sched_small, sched_medium, sched_big,
- multi_small, multi_medium, multi_big]}].
+ multi_small, multi_medium, multi_big]},
+ {gen_statem_comparison, [],
+ [single_small, single_big,
+ sched_small, sched_big,
+ multi_small, multi_big]}].
-init_per_group(GroupName, Config) when GroupName =:= gen_server;
- GroupName =:= gen_server_comparison ->
- DataDir = ?config(data_dir, Config),
- Files = filelib:wildcard(filename:join(DataDir, "{simple,generic}*.erl")),
- _ = [{ok, _} = compile:file(File) || File <- Files],
- Config;
+cases(gen_server) ->
+ [simple, simple_timer, simple_mon, simple_timer_mon,
+ generic, generic_timer];
+cases(gen_statem) ->
+ [generic, generic_fsm, generic_fsm_transit,
+ generic_statem, generic_statem_transit,
+ generic_statem_complex].
+
+init_per_group(gen_server, Config) ->
+ compile_servers(Config),
+ [{benchmark_suite,"stdlib_gen_server"}|Config];
+init_per_group(gen_statem, Config) ->
+ compile_servers(Config),
+ [{benchmark_suite,"stdlib_gen_statem"}|Config];
+init_per_group(gen_server_comparison, Config) ->
+ compile_servers(Config),
+ [{cases,cases(gen_server)},
+ {benchmark_suite,"stdlib_gen_server"}|Config];
+init_per_group(gen_statem_comparison, Config) ->
+ compile_servers(Config),
+ [{cases,cases(gen_statem)},
+ {benchmark_suite,"stdlib_gen_statem"}|Config];
init_per_group(_GroupName, Config) ->
Config.
@@ -77,23 +97,33 @@ end_per_testcase(_Func, _Conf) ->
ok.
+compile_servers(Config) ->
+ DataDir = ?config(data_dir, Config),
+ Files = filelib:wildcard(filename:join(DataDir, "{simple,generic}*.erl")),
+ _ = [{ok, _} = compile:file(File) || File <- Files],
+ ok.
+
+comment(Value) ->
+ C = lists:flatten(io_lib:format("~p", [Value])),
+ {comment, C}.
+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-define(REPEAT_NORM, 5).
norm_nfc_list(Config) ->
Bin = norm_data(Config),
{_N, Mean, _Stddev, Res} = unicode_util_SUITE:time_count(nfc, list, Bin, ?REPEAT_NORM),
- report(1000.0*Res / Mean).
+ comment(report(1000.0*Res / Mean)).
norm_nfc_deep_l(Config) ->
Bin = norm_data(Config),
{_N, Mean, _Stddev, Res} = unicode_util_SUITE:time_count(nfc, deep_l, Bin, ?REPEAT_NORM),
- report(1000.0*Res / Mean).
+ comment(report(1000.0*Res / Mean)).
norm_nfc_binary(Config) ->
Bin = norm_data(Config),
{_N, Mean, _Stddev, Res} = unicode_util_SUITE:time_count(nfc, binary, Bin, ?REPEAT_NORM),
- report(1000.0*Res / Mean).
+ comment(report(1000.0*Res / Mean)).
string_lexemes_list(Config) ->
@@ -102,7 +132,7 @@ string_lexemes_list(Config) ->
Bin = norm_data(Config),
Fun = fun(Str) -> string:nth_lexeme(Str, 200000, [$;,$\n,$\r]), 200000 end,
{_N, Mean, _Stddev, Res} = string_SUITE:time_func(Fun, list, Bin, 15),
- report(1000.0*Res / Mean).
+ comment(report(1000.0*Res / Mean)).
string_lexemes_binary(Config) ->
%% Use nth_lexeme instead of lexemes to avoid building a result of
@@ -110,7 +140,7 @@ string_lexemes_binary(Config) ->
Bin = norm_data(Config),
Fun = fun(Str) -> string:nth_lexeme(Str, 200000, [$;,$\n,$\r]), 200000 end,
{_N, Mean, _Stddev, Res} = string_SUITE:time_func(Fun, binary, Bin, ?REPEAT_NORM),
- report(1000.0*Res / Mean).
+ comment(report(1000.0*Res / Mean)).
%%%
report(Tps) ->
@@ -128,40 +158,40 @@ norm_data(Config) ->
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
decode_binary(_Config) ->
- test(decode, encoded_binary()).
+ comment(test(decode, encoded_binary())).
decode_binary_to_string(_Config) ->
- test(decode_to_string, encoded_binary()).
+ comment(test(decode_to_string, encoded_binary())).
decode_list(_Config) ->
- test(decode, encoded_list()).
+ comment(test(decode, encoded_list())).
decode_list_to_string(_Config) ->
- test(decode_to_string, encoded_list()).
+ comment(test(decode_to_string, encoded_list())).
encode_binary(_Config) ->
- test(encode, binary()).
+ comment(test(encode, binary())).
encode_binary_to_string(_Config) ->
- test(encode_to_string, binary()).
+ comment(test(encode_to_string, binary())).
encode_list(_Config) ->
- test(encode, list()).
+ comment(test(encode, list())).
encode_list_to_string(_Config) ->
- test(encode_to_string, list()).
+ comment(test(encode_to_string, list())).
mime_binary_decode(_Config) ->
- test(mime_decode, encoded_binary()).
+ comment(test(mime_decode, encoded_binary())).
mime_binary_decode_to_string(_Config) ->
- test(mime_decode_to_string, encoded_binary()).
+ comment(test(mime_decode_to_string, encoded_binary())).
mime_list_decode(_Config) ->
- test(mime_decode, encoded_list()).
+ comment(test(mime_decode, encoded_list())).
mime_list_decode_to_string(_Config) ->
- test(mime_decode_to_string, encoded_list()).
+ comment(test(mime_decode_to_string, encoded_list())).
-define(SIZE, 10000).
-define(N, 1000).
@@ -223,94 +253,106 @@ mbb(N, Acc) ->
lists:reverse(Acc, B).
simple(Config) when is_list(Config) ->
- do_tests(simple, single_small).
+ comment(do_tests(simple, single_small, Config)).
simple_timer(Config) when is_list(Config) ->
- do_tests(simple_timer, single_small).
+ comment(do_tests(simple_timer, single_small, Config)).
simple_mon(Config) when is_list(Config) ->
- do_tests(simple_mon, single_small).
+ comment(do_tests(simple_mon, single_small, Config)).
simple_timer_mon(Config) when is_list(Config) ->
- do_tests(simple_timer_mon, single_small).
+ comment(do_tests(simple_timer_mon, single_small, Config)).
generic(Config) when is_list(Config) ->
- do_tests(generic, single_small).
+ comment(do_tests(generic, single_small, Config)).
generic_timer(Config) when is_list(Config) ->
- do_tests(generic_timer, single_small).
+ comment(do_tests(generic_timer, single_small, Config)).
+
+generic_statem(Config) when is_list(Config) ->
+ comment(do_tests(generic_statem, single_small, Config)).
+
+generic_statem_transit(Config) when is_list(Config) ->
+ comment(do_tests(generic_statem_transit, single_small, Config)).
+
+generic_statem_complex(Config) when is_list(Config) ->
+ comment(do_tests(generic_statem_complex, single_small, Config)).
+
+generic_fsm(Config) when is_list(Config) ->
+ comment(do_tests(generic_fsm, single_small, Config)).
+
+generic_fsm_transit(Config) when is_list(Config) ->
+ comment(do_tests(generic_fsm_transit, single_small, Config)).
single_small(Config) when is_list(Config) ->
- comparison(single_small).
+ comparison(?config(cases, Config), single_small, Config).
single_medium(Config) when is_list(Config) ->
- comparison(single_medium).
+ comparison(?config(cases, Config), single_medium, Config).
single_big(Config) when is_list(Config) ->
- comparison(single_big).
+ comparison(?config(cases, Config), single_big, Config).
sched_small(Config) when is_list(Config) ->
- comparison(sched_small).
+ comparison(?config(cases, Config), sched_small, Config).
sched_medium(Config) when is_list(Config) ->
- comparison(sched_medium).
+ comparison(?config(cases, Config), sched_medium, Config).
sched_big(Config) when is_list(Config) ->
- comparison(sched_big).
+ comparison(?config(cases, Config), sched_big, Config).
multi_small(Config) when is_list(Config) ->
- comparison(multi_small).
+ comparison(?config(cases, Config), multi_small, Config).
multi_medium(Config) when is_list(Config) ->
- comparison(multi_medium).
+ comparison(?config(cases, Config), multi_medium, Config).
multi_big(Config) when is_list(Config) ->
- comparison(multi_big).
-
-comparison(Kind) ->
- Simple0 = do_tests(simple, Kind),
- SimpleTimer0 = do_tests(simple_timer, Kind),
- SimpleMon0 = do_tests(simple_mon, Kind),
- SimpleTimerMon0 = do_tests(simple_timer_mon, Kind),
- Generic0 = do_tests(generic, Kind),
- GenericTimer0 = do_tests(generic_timer, Kind),
- %% Normalize
- Simple = norm(Simple0, Simple0),
- SimpleTimer = norm(SimpleTimer0, Simple0),
- SimpleMon = norm(SimpleMon0, Simple0),
- SimpleTimerMon = norm(SimpleTimerMon0, Simple0),
- Generic = norm(Generic0, Simple0),
- GenericTimer = norm(GenericTimer0, Simple0),
+ comparison(?config(cases, Config), multi_big, Config).
+
+comparison(Cases, Kind, Config) ->
+ Cases = ?config(cases, Config),
+ [RefResult|_] = Results =
+ [do_tests(Case, Kind, Config) || Case <- Cases],
+ Normalized = [norm(Result, RefResult) || Result <- Results],
{Parallelism, Message} = bench_params(Kind),
Wordsize = erlang:system_info(wordsize),
MSize = Wordsize * erts_debug:flat_size(Message),
What = io_lib:format("#parallel gen_server instances: ~.4w, "
"message flat size: ~.5w bytes",
[Parallelism, MSize]),
- C = io_lib:format("~s: "
- "Simple: ~s Simple+Timer: ~s "
- "Simple+Monitor: ~s Simple+Timer+Monitor: ~s "
- "Generic: ~s Generic+Timer: ~s",
- [What, Simple, SimpleTimer, SimpleMon, SimpleTimerMon,
- Generic, GenericTimer]),
+ Format =
+ lists:flatten(
+ ["~s: "] ++
+ [[atom_to_list(Case),": ~s "] || Case <- Cases]),
+ C = lists:flatten(io_lib:format(Format, [What] ++ Normalized)),
{comment, C}.
norm(T, Ref) ->
- io_lib:format("~.2f", [Ref/T]).
+ try Ref / T of
+ Norm ->
+ io_lib:format("~.2f", [Norm])
+ catch error:badarith ->
+ "---"
+ end.
-define(MAX_TIME_SECS, 3). % s
-define(MAX_TIME, 1000 * ?MAX_TIME_SECS). % ms
-define(CALLS_PER_LOOP, 5).
-do_tests(Test, ParamSet) ->
+do_tests(Test, ParamSet, Config) ->
+ BenchmarkSuite = ?config(benchmark_suite, Config),
{Client, ServerMod} = bench(Test),
{Parallelism, Message} = bench_params(ParamSet),
Fun = create_clients(Message, ServerMod, Client, Parallelism),
{TotalLoops, AllPidTime} = run_test(Fun),
PerSecond = ?CALLS_PER_LOOP * round((1000 * TotalLoops) / AllPidTime),
- ct_event:notify(#event{name = benchmark_data,
- data = [{suite,"stdlib_gen_server"},
- {value,PerSecond}]}),
+ ct_event:notify(
+ #event{
+ name = benchmark_data,
+ data = [{suite,BenchmarkSuite},{value,PerSecond}]}),
PerSecond.
-define(COUNTER, n).
@@ -369,6 +411,51 @@ generic_timer_client(N, M, P) ->
_ = generic_server_timer:reply(P, M),
generic_timer_client(N+1, M, P).
+generic_statem_client(N, M, P) ->
+ put(?COUNTER, N),
+ _ = generic_statem:reply(P, M),
+ _ = generic_statem:reply(P, M),
+ _ = generic_statem:reply(P, M),
+ _ = generic_statem:reply(P, M),
+ _ = generic_statem:reply(P, M),
+ generic_statem_client(N+1, M, P).
+
+generic_statem_transit_client(N, M, P) ->
+ put(?COUNTER, N),
+ _ = generic_statem:transit(P, M),
+ _ = generic_statem:transit(P, M),
+ _ = generic_statem:transit(P, M),
+ _ = generic_statem:transit(P, M),
+ _ = generic_statem:transit(P, M),
+ generic_statem_transit_client(N+1, M, P).
+
+generic_statem_complex_client(N, M, P) ->
+ put(?COUNTER, N),
+ _ = generic_statem:reply(P, M),
+ _ = generic_statem:reply(P, M),
+ _ = generic_statem:reply(P, M),
+ _ = generic_statem:reply(P, M),
+ _ = generic_statem:reply(P, M),
+ generic_statem_complex_client(N+1, M, P).
+
+generic_fsm_client(N, M, P) ->
+ put(?COUNTER, N),
+ _ = generic_fsm:reply(P, M),
+ _ = generic_fsm:reply(P, M),
+ _ = generic_fsm:reply(P, M),
+ _ = generic_fsm:reply(P, M),
+ _ = generic_fsm:reply(P, M),
+ generic_fsm_client(N+1, M, P).
+
+generic_fsm_transit_client(N, M, P) ->
+ put(?COUNTER, N),
+ _ = generic_fsm:transit(P, M),
+ _ = generic_fsm:transit(P, M),
+ _ = generic_fsm:transit(P, M),
+ _ = generic_fsm:transit(P, M),
+ _ = generic_fsm:transit(P, M),
+ generic_fsm_transit_client(N+1, M, P).
+
bench(simple) ->
{fun simple_client/3, simple_server};
bench(simple_timer) ->
@@ -380,7 +467,17 @@ bench(simple_timer_mon) ->
bench(generic) ->
{fun generic_client/3, generic_server};
bench(generic_timer) ->
- {fun generic_timer_client/3, generic_server_timer}.
+ {fun generic_timer_client/3, generic_server_timer};
+bench(generic_statem) ->
+ {fun generic_statem_client/3, generic_statem};
+bench(generic_statem_transit) ->
+ {fun generic_statem_transit_client/3, generic_statem};
+bench(generic_statem_complex) ->
+ {fun generic_statem_complex_client/3, generic_statem_complex};
+bench(generic_fsm) ->
+ {fun generic_fsm_client/3, generic_fsm};
+bench(generic_fsm_transit) ->
+ {fun generic_fsm_transit_client/3, generic_fsm}.
%% -> {Parallelism, MessageTerm}
bench_params(single_small) -> {1, small()};
diff --git a/lib/stdlib/test/stdlib_bench_SUITE_data/generic_fsm.erl b/lib/stdlib/test/stdlib_bench_SUITE_data/generic_fsm.erl
new file mode 100644
index 0000000000..50f7df7a2a
--- /dev/null
+++ b/lib/stdlib/test/stdlib_bench_SUITE_data/generic_fsm.erl
@@ -0,0 +1,59 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2017-2018. 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.
+%% You may obtain a copy of the License at
+%%
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(generic_fsm).
+
+-export([start/1, reply/2, transit/2, stop/1]).
+
+-export([init/1, terminate/3]).
+-export([state1/3, state2/3]).
+
+-behaivour(gen_fsm).
+
+
+%% API
+
+start(Data) ->
+ {ok, Pid} = gen_fsm:start(?MODULE, Data, []),
+ Pid.
+
+stop(P) ->
+ ok = gen_fsm:stop(P).
+
+reply(S, M) ->
+ gen_fsm:sync_send_event(S, {reply, M}, infinity).
+
+transit(S, M) ->
+ gen_fsm:sync_send_event(S, {transit, M}, infinity).
+
+%% Implementation
+
+init(Data) ->
+ {ok, state1, Data}.
+
+terminate(_Reason, _State, _Data) ->
+ ok.
+
+state1({reply, M}, _From, Data) ->
+ {reply, M, ?FUNCTION_NAME, Data};
+state1({transit, M}, _From, Data) ->
+ {reply, M, state2, Data}.
+
+state2({transit, M}, _From, Data) ->
+ {reply, M, state1, Data}.
diff --git a/lib/stdlib/test/stdlib_bench_SUITE_data/generic_statem.erl b/lib/stdlib/test/stdlib_bench_SUITE_data/generic_statem.erl
new file mode 100644
index 0000000000..2e0491f060
--- /dev/null
+++ b/lib/stdlib/test/stdlib_bench_SUITE_data/generic_statem.erl
@@ -0,0 +1,58 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2017-2018. 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.
+%% You may obtain a copy of the License at
+%%
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(generic_statem).
+
+-export([start/1, reply/2, transit/2, stop/1]).
+
+-export([callback_mode/0, init/1]).
+-export([state1/3, state2/3]).
+
+-behaviour(gen_statem).
+
+%% API
+
+start(Data) ->
+ {ok, Pid} = gen_statem:start(?MODULE, Data, []),
+ Pid.
+
+stop(P) ->
+ ok = gen_statem:stop(P).
+
+reply(S, M) ->
+ gen_statem:call(S, {reply, M}, infinity).
+
+transit(S, M) ->
+ gen_statem:call(S, {transit, M}, infinity).
+
+%% Implementation
+
+callback_mode() ->
+ state_functions.
+
+init(Data) ->
+ {ok, state1, Data}.
+
+state1({call, From}, {reply, M}, Data) ->
+ {keep_state, Data, {reply, From, M}};
+state1({call, From}, {transit, M}, Data) ->
+ {next_state, state2, Data, {reply, From, M}}.
+
+state2({call, From}, {transit, M}, Data) ->
+ {next_state, state1, Data, {reply, From, M}}.
diff --git a/lib/stdlib/test/stdlib_bench_SUITE_data/generic_statem_complex.erl b/lib/stdlib/test/stdlib_bench_SUITE_data/generic_statem_complex.erl
new file mode 100644
index 0000000000..983227d281
--- /dev/null
+++ b/lib/stdlib/test/stdlib_bench_SUITE_data/generic_statem_complex.erl
@@ -0,0 +1,66 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2017-2018. 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.
+%% You may obtain a copy of the License at
+%%
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(generic_statem_complex).
+
+-export([start/1, reply/2, stop/1]).
+
+-export([callback_mode/0, init/1]).
+-export([state1/3, state2/3, state3/3]).
+
+-behaviour(gen_statem).
+
+%% API
+
+start(Data) ->
+ {ok, Pid} = gen_statem:start(?MODULE, Data, []),
+ Pid.
+
+stop(P) ->
+ ok = gen_statem:stop(P).
+
+reply(S, M) ->
+ gen_statem:call(S, {reply, M}, infinity).
+
+%% Implementation
+
+callback_mode() ->
+ [state_functions,state_enter].
+
+init(Data) ->
+ {ok, state1, Data}.
+
+state1(enter, _, Data) ->
+ {keep_state, Data,
+ {state_timeout, 5000, t1}};
+state1({call, _From}, {reply, _M}, Data) ->
+ {next_state, state2, Data,
+ [postpone,{next_event,internal,e}]}.
+
+state2(enter, _, _Data) ->
+ keep_state_and_data;
+state2(internal, e, Data) ->
+ {next_state, state3, Data}.
+
+state3(enter, _, Data) ->
+ {keep_state, Data,
+ {state_timeout, 5000, t3}};
+state3({call, From}, {reply, M}, Data) ->
+ {next_state, state1, Data,
+ {reply, From, M}}.
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 10:17:12 +0000