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-rw-r--r--erts/emulator/test/Makefile1
-rw-r--r--erts/emulator/test/long_timers_test.erl96
-rw-r--r--erts/emulator/test/monitor_SUITE.erl113
-rw-r--r--erts/emulator/test/time_SUITE.erl407
-rw-r--r--erts/emulator/test/unique_SUITE.erl390
5 files changed, 970 insertions, 37 deletions
diff --git a/erts/emulator/test/Makefile b/erts/emulator/test/Makefile
index dfbe47786a..dd2e2cb504 100644
--- a/erts/emulator/test/Makefile
+++ b/erts/emulator/test/Makefile
@@ -108,6 +108,7 @@ MODULES= \
trace_call_time_SUITE \
scheduler_SUITE \
old_scheduler_SUITE \
+ unique_SUITE \
z_SUITE \
old_mod \
long_timers_test \
diff --git a/erts/emulator/test/long_timers_test.erl b/erts/emulator/test/long_timers_test.erl
index 28a4fba9f6..f381332b51 100644
--- a/erts/emulator/test/long_timers_test.erl
+++ b/erts/emulator/test/long_timers_test.erl
@@ -28,7 +28,7 @@
-define(MAX_TIMEOUT, 60). % Minutes
--define(MAX_LATE, 10*1000). % Milliseconds
+-define(MAX_LATE_MS, 10*1000). % Milliseconds
-define(REG_NAME, '___LONG___TIMERS___TEST___SERVER___').
-define(DRV_NAME, timer_driver).
@@ -75,7 +75,7 @@ check_result() ->
erlang:demonitor(Mon),
receive {'DOWN', Mon, _, _, _} -> ok after 0 -> ok end,
stop_node(Node),
- check(TORs, (timer:now_diff(End, Start) div 1000) - ?MAX_LATE, ok)
+ check(TORs, ms((End - Start) - max_late()), ok)
end.
check([#timeout_rec{timeout = Timeout,
@@ -83,7 +83,7 @@ check([#timeout_rec{timeout = Timeout,
timeout_diff = undefined} | TORs],
NeedRes,
_Ok) when Timeout < NeedRes ->
- io:format("~p timeout = ~p failed! No timeout.~n",
+ io:format("~p timeout = ~p ms failed! No timeout.~n",
[Type, Timeout]),
check(TORs, NeedRes, failed);
check([#timeout_rec{timeout_diff = undefined} | TORs],
@@ -95,7 +95,7 @@ check([#timeout_rec{timeout = Timeout,
timeout_diff = {error, Reason}} | TORs],
NeedRes,
_Ok) ->
- io:format("~p timeout = ~p failed! exit reason ~p~n",
+ io:format("~p timeout = ~p ms failed! exit reason ~p~n",
[Type, Timeout, Reason]),
check(TORs, NeedRes, failed);
check([#timeout_rec{timeout = Timeout,
@@ -103,43 +103,77 @@ check([#timeout_rec{timeout = Timeout,
timeout_diff = TimeoutDiff} | TORs],
NeedRes,
Ok) ->
- case (0 =< TimeoutDiff) and (TimeoutDiff =< ?MAX_LATE) of
- true ->
- io:format("~p timeout = ~p succeded! timeout diff = ~p.~n",
- [Type, Timeout, TimeoutDiff]),
- check(TORs, NeedRes, Ok);
- false ->
- io:format("~p timeout = ~p failed! timeout diff = ~p.~n",
- [Type, Timeout, TimeoutDiff]),
- check(TORs, NeedRes, failed)
- end;
+ {NewOk, SuccessStr} = case ((0 =< TimeoutDiff)
+ andalso (TimeoutDiff =< max_late())) of
+ true -> {Ok, "succeeded"};
+ false -> {failed, "FAILED"}
+ end,
+ io:format("~s timeout = ~s ms ~s! timeout diff = ~s.~n",
+ [type_str(Type),
+ time_str(Timeout),
+ SuccessStr,
+ time_str(TimeoutDiff, erlang:convert_time_unit(1, seconds, native))]),
+ check(TORs, NeedRes, NewOk);
check([], _NeedRes, Ok) ->
Ok.
+type_str(receive_after) -> "receive ... after";
+type_str(bif_timer) -> "BIF timer";
+type_str(driver) -> "driver".
+
+time_str(Time, Unit) ->
+ lists:flatten([time_str(Time), " ", unit_str(Unit)]).
+
+time_str(Time) ->
+ lists:reverse(conv_time_str(lists:reverse(integer_to_list(Time)))).
+
+conv_time_str([X,Y,Z,C|Cs]) when C /= $- ->
+ [X,Y,Z,$`|conv_time_str([C|Cs])];
+conv_time_str(Cs) ->
+ Cs.
+
+unit_str(1) -> "s";
+unit_str(1000) -> "ms";
+unit_str(1000000) -> "us";
+unit_str(1000000000) -> "ns";
+unit_str(Res) when is_integer(Res) -> ["/ ", integer_to_list(Res), " s"];
+unit_str(Res) -> Res.
+
+to_diff(Timeout, Start, Stop) ->
+ %% 'Timeout' in milli seconds
+ %% 'Start', 'Stop', and result in native unit
+ (Stop - Start) - erlang:convert_time_unit(Timeout, milli_seconds, native).
+
+ms(Time) ->
+ erlang:convert_time_unit(Time, native, milli_seconds).
+
+max_late() ->
+ erlang:convert_time_unit(?MAX_LATE_MS, milli_seconds, native).
+
receive_after(Timeout) ->
- Start = now(),
+ Start = erlang:monotonic_time(),
receive
{get_result, ?REG_NAME} ->
?REG_NAME ! #timeout_rec{pid = self(),
type = receive_after,
timeout = Timeout}
after Timeout ->
- Stop = now(),
+ Stop = erlang:monotonic_time(),
receive
{get_result, ?REG_NAME} ->
- TimeoutDiff = ((timer:now_diff(Stop, Start) div 1000)
- - Timeout),
?REG_NAME ! #timeout_rec{pid = self(),
type = receive_after,
timeout = Timeout,
- timeout_diff = TimeoutDiff}
+ timeout_diff = to_diff(Timeout,
+ Start,
+ Stop)}
end
end.
driver(Timeout) ->
Port = open_port({spawn, ?DRV_NAME},[]),
link(Port),
- Start = now(),
+ Start = erlang:monotonic_time(),
erlang:port_command(Port, <<?START_TIMER, Timeout:32>>),
receive
{get_result, ?REG_NAME} ->
@@ -147,38 +181,38 @@ driver(Timeout) ->
type = driver,
timeout = Timeout};
{Port,{data,[?TIMER]}} ->
- Stop = now(),
+ Stop = erlang:monotonic_time(),
unlink(Port),
true = erlang:port_close(Port),
receive
{get_result, ?REG_NAME} ->
- TimeoutDiff = ((timer:now_diff(Stop, Start) div 1000)
- - Timeout),
?REG_NAME ! #timeout_rec{pid = self(),
type = driver,
timeout = Timeout,
- timeout_diff = TimeoutDiff}
+ timeout_diff = to_diff(Timeout,
+ Start,
+ Stop)}
end
end.
bif_timer(Timeout) ->
Tmr = erlang:start_timer(Timeout, self(), ok),
- Start = now(),
+ Start = erlang:monotonic_time(),
receive
{get_result, ?REG_NAME} ->
?REG_NAME ! #timeout_rec{pid = self(),
type = bif_timer,
timeout = Timeout};
{timeout, Tmr, ok} ->
- Stop = now(),
+ Stop = erlang:monotonic_time(),
receive
{get_result, ?REG_NAME} ->
- TimeoutDiff = ((timer:now_diff(Stop, Start) div 1000)
- - Timeout),
?REG_NAME ! #timeout_rec{pid = self(),
type = bif_timer,
timeout = Timeout,
- timeout_diff = TimeoutDiff}
+ timeout_diff = to_diff(Timeout,
+ Start,
+ Stop)}
end
end.
@@ -189,7 +223,7 @@ test(Starter, DrvDir, StartDone) ->
register(?REG_NAME, self()),
{group_leader, GL} = process_info(whereis(net_kernel),group_leader),
group_leader(GL, self()),
- Start = now(),
+ Start = erlang:monotonic_time(),
TORs = lists:map(fun (Min) ->
TO = Min*60*1000,
[#timeout_rec{pid = spawn_opt(
@@ -222,7 +256,7 @@ test(Starter, DrvDir, StartDone) ->
test_loop(TORs, Start) ->
receive
{get_result, ?REG_NAME, Pid} ->
- End = now(),
+ End = erlang:monotonic_time(),
Pid ! {result, ?REG_NAME, get_test_results(TORs), Start, End},
erl_ddll:unload_driver(?DRV_NAME),
erl_ddll:stop(),
diff --git a/erts/emulator/test/monitor_SUITE.erl b/erts/emulator/test/monitor_SUITE.erl
index aec59867d8..07e2862b2a 100644
--- a/erts/emulator/test/monitor_SUITE.erl
+++ b/erts/emulator/test/monitor_SUITE.erl
@@ -26,7 +26,8 @@
case_1/1, case_1a/1, case_2/1, case_2a/1, mon_e_1/1, demon_e_1/1, demon_1/1,
demon_2/1, demon_3/1, demonitor_flush/1,
local_remove_monitor/1, remote_remove_monitor/1, mon_1/1, mon_2/1,
- large_exit/1, list_cleanup/1, mixer/1, named_down/1, otp_5827/1]).
+ large_exit/1, list_cleanup/1, mixer/1, named_down/1, otp_5827/1,
+ monitor_time_offset/1]).
-export([init_per_testcase/2, end_per_testcase/2]).
@@ -38,7 +39,8 @@ all() ->
[case_1, case_1a, case_2, case_2a, mon_e_1, demon_e_1,
demon_1, mon_1, mon_2, demon_2, demon_3,
demonitor_flush, {group, remove_monitor}, large_exit,
- list_cleanup, mixer, named_down, otp_5827].
+ list_cleanup, mixer, named_down, otp_5827,
+ monitor_time_offset].
groups() ->
[{remove_monitor, [],
@@ -59,7 +61,7 @@ end_per_group(_GroupName, Config) ->
init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
Dog=?t:timetrap(?t:minutes(15)),
- [{watchdog, Dog}|Config].
+ [{watchdog, Dog},{testcase, Func}|Config].
end_per_testcase(_Func, Config) ->
Dog=?config(watchdog, Config),
@@ -837,6 +839,89 @@ otp_5827(Config) when is_list(Config) ->
?line ?t:fail("erlang:monitor/2 hangs")
end.
+monitor_time_offset(Config) when is_list(Config) ->
+ {ok, Node} = start_node(Config, "+C single_time_warp"),
+ Me = self(),
+ PMs = lists:map(fun (_) ->
+ Pid = spawn(Node,
+ fun () ->
+ check_monitor_time_offset(Me)
+ end),
+ {Pid, erlang:monitor(process, Pid)}
+ end,
+ lists:seq(1, 100)),
+ lists:foreach(fun ({P, _M}) ->
+ P ! check_no_change_message
+ end, PMs),
+ lists:foreach(fun ({P, M}) ->
+ receive
+ {no_change_message_received, P} ->
+ ok;
+ {'DOWN', M, process, P, Reason} ->
+ ?t:fail(Reason)
+ end
+ end, PMs),
+ preliminary = rpc:call(Node, erlang, system_flag, [time_offset, finalize]),
+ lists:foreach(fun ({P, M}) ->
+ receive
+ {change_messages_received, P} ->
+ erlang:demonitor(M, [flush]);
+ {'DOWN', M, process, P, Reason} ->
+ ?t:fail(Reason)
+ end
+ end, PMs),
+ stop_node(Node),
+ ok.
+
+check_monitor_time_offset(Leader) ->
+ Mon1 = erlang:monitor(time_offset, clock_service),
+ Mon2 = erlang:monitor(time_offset, clock_service),
+ Mon3 = erlang:monitor(time_offset, clock_service),
+ Mon4 = erlang:monitor(time_offset, clock_service),
+
+ erlang:demonitor(Mon2, [flush]),
+
+ Mon5 = erlang:monitor(time_offset, clock_service),
+ Mon6 = erlang:monitor(time_offset, clock_service),
+ Mon7 = erlang:monitor(time_offset, clock_service),
+
+ receive check_no_change_message -> ok end,
+ receive
+ {'CHANGE', _, time_offset, clock_service, _} ->
+ exit(unexpected_change_message_received)
+ after 0 ->
+ Leader ! {no_change_message_received, self()}
+ end,
+ receive after 100 -> ok end,
+ erlang:demonitor(Mon4, [flush]),
+ receive
+ {'CHANGE', Mon3, time_offset, clock_service, _} ->
+ ok
+ end,
+ receive
+ {'CHANGE', Mon6, time_offset, clock_service, _} ->
+ ok
+ end,
+ erlang:demonitor(Mon5, [flush]),
+ receive
+ {'CHANGE', Mon7, time_offset, clock_service, _} ->
+ ok
+ end,
+ receive
+ {'CHANGE', Mon1, time_offset, clock_service, _} ->
+ ok
+ end,
+ receive
+ {'CHANGE', _, time_offset, clock_service, _} ->
+ exit(unexpected_change_message_received)
+ after 1000 ->
+ ok
+ end,
+ Leader ! {change_messages_received, self()}.
+
+%%
+%% ...
+%%
wait_for_m(_,_,0) ->
exit(monitor_wait_timeout);
@@ -959,3 +1044,25 @@ generate(_Fun, 0) ->
[];
generate(Fun, N) ->
[Fun() | generate(Fun, N-1)].
+
+start_node(Config) ->
+ start_node(Config, "").
+
+start_node(Config, Args) ->
+ TestCase = ?config(testcase, Config),
+ PA = filename:dirname(code:which(?MODULE)),
+ ESTime = erlang:monotonic_time(1) + erlang:time_offset(1),
+ Unique = erlang:unique_integer([positive]),
+ Name = list_to_atom(atom_to_list(?MODULE)
+ ++ "-"
+ ++ atom_to_list(TestCase)
+ ++ "-"
+ ++ integer_to_list(ESTime)
+ ++ "-"
+ ++ integer_to_list(Unique)),
+ test_server:start_node(Name,
+ slave,
+ [{args, "-pa " ++ PA ++ " " ++ Args}]).
+
+stop_node(Node) ->
+ test_server:stop_node(Node).
diff --git a/erts/emulator/test/time_SUITE.erl b/erts/emulator/test/time_SUITE.erl
index a0a8a9c42c..43f7ac7f7c 100644
--- a/erts/emulator/test/time_SUITE.erl
+++ b/erts/emulator/test/time_SUITE.erl
@@ -34,7 +34,14 @@
bad_univ_to_local/1, bad_local_to_univ/1,
univ_to_seconds/1, seconds_to_univ/1,
consistency/1,
- now_unique/1, now_update/1, timestamp/1]).
+ now_unique/1, now_update/1, timestamp/1,
+ time_warp_modes/1,
+ monotonic_time_monotonicity/1,
+ time_unit_conversion/1,
+ signed_time_unit_conversion/1,
+ erlang_timestamp/1]).
+
+-export([init_per_testcase/2, end_per_testcase/2]).
-export([local_to_univ_utc/1]).
@@ -56,6 +63,12 @@
-define(dst_timezone, 2).
+init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
+ [{testcase, Func}|Config].
+
+end_per_testcase(_Func, Config) ->
+ ok.
+
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
@@ -63,7 +76,12 @@ all() ->
bad_univ_to_local, bad_local_to_univ,
univ_to_seconds, seconds_to_univ,
consistency,
- {group, now}, timestamp].
+ {group, now}, timestamp,
+ time_warp_modes,
+ monotonic_time_monotonicity,
+ time_unit_conversion,
+ signed_time_unit_conversion,
+ erlang_timestamp].
groups() ->
[{now, [], [now_unique, now_update]}].
@@ -420,6 +438,368 @@ now_update1(N) when N > 0 ->
now_update1(0) ->
?line test_server:fail().
+time_warp_modes(Config) when is_list(Config) ->
+ %% All time warp modes always supported in
+ %% combination with no time correction...
+ check_time_warp_mode(Config, false, no_time_warp),
+ check_time_warp_mode(Config, false, single_time_warp),
+ check_time_warp_mode(Config, false, multi_time_warp),
+
+ erts_debug:set_internal_state(available_internal_state, true),
+ try
+ case erts_debug:get_internal_state({check_time_config,
+ true, no_time_warp}) of
+ false -> ok;
+ true -> check_time_warp_mode(Config, true, no_time_warp)
+ end,
+ case erts_debug:get_internal_state({check_time_config,
+ true, single_time_warp}) of
+ false -> ok;
+ true -> check_time_warp_mode(Config, true, single_time_warp)
+ end,
+ case erts_debug:get_internal_state({check_time_config,
+ true, multi_time_warp}) of
+ false -> ok;
+ true -> check_time_warp_mode(Config, true, multi_time_warp)
+ end
+ after
+ erts_debug:set_internal_state(available_internal_state, false)
+ end.
+
+check_time_warp_mode(Config, TimeCorrection, TimeWarpMode) ->
+ io:format("~n~n~n***** Testing TimeCorrection=~p TimeWarpMode=~p *****~n",
+ [TimeCorrection, TimeWarpMode]),
+ Mon = erlang:monitor(time_offset, clock_service),
+ _ = erlang:time_offset(),
+ Start = erlang:monotonic_time(1000),
+ MonotonicityTimeout = 2000,
+ {ok, Node} = start_node(Config,
+ "+c " ++ atom_to_list(TimeCorrection)
+ ++ " +C " ++ atom_to_list(TimeWarpMode)),
+ StartTime = rpc:call(Node, erlang, system_info, [start_time]),
+ Me = self(),
+ MonotincityTestStarted = make_ref(),
+ MonotincityTestDone = make_ref(),
+ spawn_link(Node,
+ fun () ->
+ Me ! MonotincityTestStarted,
+ cmp_times(erlang:start_timer(MonotonicityTimeout,
+ self(),
+ timeout),
+ erlang:monotonic_time()),
+ Me ! MonotincityTestDone
+ end),
+ receive MonotincityTestStarted -> ok end,
+ check_time_offset(Node, TimeWarpMode),
+ TimeWarpMode = rpc:call(Node, erlang, system_info, [time_warp_mode]),
+ TimeCorrection = rpc:call(Node, erlang, system_info, [time_correction]),
+ receive MonotincityTestDone -> ok end,
+ MonotonicTime = rpc:call(Node, erlang, monotonic_time, []),
+ MonotonicTimeUnit = rpc:call(Node,
+ erlang,
+ convert_time_unit,
+ [1, seconds, native]),
+ UpMilliSeconds = erlang:convert_time_unit(MonotonicTime - StartTime,
+ MonotonicTimeUnit,
+ milli_seconds),
+ io:format("UpMilliSeconds=~p~n", [UpMilliSeconds]),
+ End = erlang:monotonic_time(milli_seconds),
+ stop_node(Node),
+ try
+ true = (UpMilliSeconds > (98*MonotonicityTimeout) div 100),
+ true = (UpMilliSeconds < (102*(End-Start)) div 100)
+ catch
+ error:_ ->
+ io:format("Uptime inconsistency", []),
+ case {TimeCorrection, erlang:system_info(time_correction)} of
+ {true, true} ->
+ ?t:fail(uptime_inconsistency);
+ {true, false} ->
+ _ = erlang:time_offset(),
+ receive
+ {'CHANGE', Mon, time_offset, clock_service, _} ->
+ ignore
+ after 1000 ->
+ ?t:fail(uptime_inconsistency)
+ end;
+ _ ->
+ ignore
+ end
+ end,
+ erlang:demonitor(Mon, [flush]),
+ ok.
+
+check_time_offset(Node, no_time_warp) ->
+ final = rpc:call(Node, erlang, system_info, [time_offset]),
+ final = rpc:call(Node, erlang, system_flag, [time_offset, finalize]),
+ final = rpc:call(Node, erlang, system_info, [time_offset]);
+check_time_offset(Node, single_time_warp) ->
+ preliminary = rpc:call(Node, erlang, system_info, [time_offset]),
+ preliminary = rpc:call(Node, erlang, system_flag, [time_offset, finalize]),
+ final = rpc:call(Node, erlang, system_info, [time_offset]),
+ final = rpc:call(Node, erlang, system_flag, [time_offset, finalize]);
+check_time_offset(Node, multi_time_warp) ->
+ volatile = rpc:call(Node, erlang, system_info, [time_offset]),
+ volatile = rpc:call(Node, erlang, system_flag, [time_offset, finalize]),
+ volatile = rpc:call(Node, erlang, system_info, [time_offset]).
+
+monotonic_time_monotonicity(Config) when is_list(Config) ->
+ Done = erlang:start_timer(10000,self(),timeout),
+ cmp_times(Done, erlang:monotonic_time()).
+
+cmp_times(Done, X0) ->
+ X1 = erlang:monotonic_time(),
+ X2 = erlang:monotonic_time(),
+ X3 = erlang:monotonic_time(),
+ X4 = erlang:monotonic_time(),
+ X5 = erlang:monotonic_time(),
+ true = (X0 =< X1),
+ true = (X1 =< X2),
+ true = (X2 =< X3),
+ true = (X3 =< X4),
+ true = (X4 =< X5),
+ receive
+ {timeout, Done, timeout} ->
+ ok
+ after 0 ->
+ cmp_times(Done, X5)
+ end.
+
+-define(CHK_RES_CONVS_TIMEOUT, 400).
+
+time_unit_conversion(Config) when is_list(Config) ->
+ Mon = erlang:monitor(time_offset, clock_service),
+ start_check_res_convs(Mon, 1000000000000),
+ start_check_res_convs(Mon, 2333333333333),
+ start_check_res_convs(Mon, 5732678356789),
+ erlang:demonitor(Mon, [flush]).
+
+start_check_res_convs(Mon, Res) ->
+ io:format("Checking ~p time_unit~n", [Res]),
+ check_res_convs(Mon,
+ erlang:start_timer(?CHK_RES_CONVS_TIMEOUT,
+ self(),
+ timeout),
+ Res).
+
+
+check_res_convs(Mon, Done, Res) ->
+ receive
+ {timeout, Done, timeout} ->
+ case Res div 10 of
+ 0 ->
+ ok;
+ NewRes ->
+ start_check_res_convs(Mon, NewRes)
+ end
+ after 0 ->
+ do_check_res_convs(Mon, Done, Res)
+ end.
+
+do_check_res_convs(Mon, Done, Res) ->
+ TStart = erlang:monotonic_time(),
+ T = erlang:monotonic_time(Res),
+ TEnd = erlang:monotonic_time(),
+ TMin = erlang:convert_time_unit(TStart, native, Res),
+ TMax = erlang:convert_time_unit(TEnd, native, Res),
+ %io:format("~p =< ~p =< ~p~n", [TMin, T, TEnd]),
+ true = (TMin =< T),
+ true = (TMax >= T),
+ check_time_offset_res_conv(Mon, Res),
+ check_res_convs(Mon, Done, Res).
+
+
+check_time_offset_res_conv(Mon, Res) ->
+ TORes = erlang:time_offset(Res),
+ TO = erlang:time_offset(),
+ case erlang:convert_time_unit(TO, native, Res) of
+ TORes ->
+ ok;
+ TORes2 ->
+ case check_time_offset_change(Mon, TO, 1000) of
+ {TO, false} ->
+ ?t:fail({time_unit_conversion_inconsistency,
+ TO, TORes, TORes2});
+ {_NewTO, true} ->
+ ?t:format("time_offset changed", []),
+ check_time_offset_res_conv(Mon, Res)
+ end
+ end.
+
+signed_time_unit_conversion(Config) when is_list(Config) ->
+ chk_strc(1000000000, 1000000),
+ chk_strc(1000000000, 1000),
+ chk_strc(1000000000, 1),
+ chk_strc(1000000, 1000),
+ chk_strc(1000000, 1),
+ chk_strc(1000, 1),
+ chk_strc(4711, 17),
+ chk_strc(1 bsl 10, 1),
+ chk_strc(1 bsl 16, 10),
+ chk_strc(1 bsl 17, 1 bsl 8),
+ chk_strc((1 bsl 17) + 1, (1 bsl 8) - 1),
+ chk_strc(1 bsl 17, 11),
+ ok.
+
+chk_strc(Res0, Res1) ->
+ case (Res0 /= Res1) andalso (Res0 =< 1000000) andalso (Res1 =< 1000000) of
+ true ->
+ {FromRes, ToRes} = case Res0 > Res1 of
+ true -> {Res0, Res1};
+ false -> {Res1, Res0}
+ end,
+ MinFromValuesPerToValue = FromRes div ToRes,
+ MaxFromValuesPerToValue = ((FromRes-1) div ToRes)+1,
+ io:format("~p -> ~p [~p, ~p]~n",
+ [FromRes, ToRes,
+ MinFromValuesPerToValue, MaxFromValuesPerToValue]),
+ chk_values_per_value(FromRes, ToRes,
+ -10*FromRes, 10*FromRes,
+ MinFromValuesPerToValue,
+ MaxFromValuesPerToValue,
+ undefined, MinFromValuesPerToValue);
+ _ ->
+ ok
+ end,
+ chk_random_values(Res0, Res1),
+ chk_random_values(Res1, Res0),
+ ok.
+
+chk_random_values(FR, TR) ->
+% case (FR rem TR == 0) orelse (TR rem FR == 0) of
+% true ->
+ io:format("rand values ~p -> ~p~n", [FR, TR]),
+ random:seed(268438039, 268440479, 268439161),
+ Values = lists:map(fun (_) -> random:uniform(1 bsl 65) - (1 bsl 64) end,
+ lists:seq(1, 100000)),
+ CheckFun = fun (V) ->
+ CV = erlang:convert_time_unit(V, FR, TR),
+ case {(FR*CV) div TR =< V,
+ (FR*(CV+1)) div TR >= V} of
+ {true, true} ->
+ ok;
+ Failure ->
+ ?t:fail({Failure, CV, V, FR, TR})
+ end
+ end,
+ lists:foreach(CheckFun, Values).%;
+% false -> ok
+% end.
+
+
+chk_values_per_value(_FromRes, _ToRes,
+ EndValue, EndValue,
+ MinFromValuesPerToValue, MaxFromValuesPerToValue,
+ _ToValue, FromValueCount) ->
+% io:format("~p [~p]~n", [EndValue, FromValueCount]),
+ case ((MinFromValuesPerToValue =< FromValueCount)
+ andalso (FromValueCount =< MaxFromValuesPerToValue)) of
+ false ->
+ ?t:fail({MinFromValuesPerToValue,
+ FromValueCount,
+ MaxFromValuesPerToValue});
+ true ->
+ ok
+ end;
+chk_values_per_value(FromRes, ToRes, Value, EndValue,
+ MinFromValuesPerToValue, MaxFromValuesPerToValue,
+ ToValue, FromValueCount) ->
+ case erlang:convert_time_unit(Value, FromRes, ToRes) of
+ ToValue ->
+ chk_values_per_value(FromRes, ToRes,
+ Value+1, EndValue,
+ MinFromValuesPerToValue,
+ MaxFromValuesPerToValue,
+ ToValue, FromValueCount+1);
+ NewToValue ->
+ case ((MinFromValuesPerToValue =< FromValueCount)
+ andalso (FromValueCount =< MaxFromValuesPerToValue)) of
+ false ->
+ ?t:fail({MinFromValuesPerToValue,
+ FromValueCount,
+ MaxFromValuesPerToValue});
+ true ->
+% io:format("~p -> ~p [~p]~n",
+% [Value, NewToValue, FromValueCount]),
+ chk_values_per_value(FromRes, ToRes,
+ Value+1, EndValue,
+ MinFromValuesPerToValue,
+ MaxFromValuesPerToValue,
+ NewToValue, 1)
+ end
+ end.
+
+erlang_timestamp(Config) when is_list(Config) ->
+ Mon = erlang:monitor(time_offset, clock_service),
+ {TO, _} = check_time_offset_change(Mon,
+ erlang:time_offset(),
+ 0),
+ Done = erlang:start_timer(10000,self(),timeout),
+ ok = check_erlang_timestamp(Done, Mon, TO).
+
+check_erlang_timestamp(Done, Mon, TO) ->
+ receive
+ {timeout, Done, timeout} ->
+ erlang:demonitor(Mon, [flush]),
+ ok
+ after 0 ->
+ do_check_erlang_timestamp(Done, Mon, TO)
+ end.
+
+do_check_erlang_timestamp(Done, Mon, TO) ->
+ MinMon = erlang:monotonic_time(),
+ {MegaSec, Sec, MicroSec} = erlang:timestamp(),
+ MaxMon = erlang:monotonic_time(),
+ TsMin = erlang:convert_time_unit(MinMon+TO,
+ native,
+ micro_seconds),
+ TsMax = erlang:convert_time_unit(MaxMon+TO,
+ native,
+ micro_seconds),
+ TsTime = (MegaSec*1000000+Sec)*1000000+MicroSec,
+ case (TsMin =< TsTime) andalso (TsTime =< TsMax) of
+ true ->
+ NewTO = case erlang:time_offset() of
+ TO ->
+ TO;
+ _ ->
+ check_time_offset_change(Mon, TO, 0)
+ end,
+ check_erlang_timestamp(Done, Mon, NewTO);
+ false ->
+ io:format("TsMin=~p TsTime=~p TsMax=~p~n", [TsMin, TsTime, TsMax]),
+ ?t:format("Detected inconsistency; "
+ "checking for time_offset change...", []),
+ case check_time_offset_change(Mon, TO, 1000) of
+ {TO, false} ->
+ ?t:fail(timestamp_inconsistency);
+ {NewTO, true} ->
+ ?t:format("time_offset changed", []),
+ check_erlang_timestamp(Done, Mon, NewTO)
+ end
+ end.
+
+check_time_offset_change(Mon, TO, Wait) ->
+ process_changed_time_offset(Mon, TO, false, Wait).
+
+process_changed_time_offset(Mon, TO, Changed, Wait) ->
+ receive
+ {'CHANGE', Mon, time_offset, clock_service, NewTO} ->
+ process_changed_time_offset(Mon, NewTO, true, Wait)
+ after Wait ->
+ case erlang:time_offset() of
+ TO ->
+ {TO, Changed};
+ _OtherTO ->
+ receive
+ {'CHANGE', Mon, time_offset, clock_service, NewTO} ->
+ process_changed_time_offset(Mon, NewTO, true, Wait)
+ end
+ end
+ end.
+
+
+
%% Returns the test data: a list of {Utc, Local} tuples.
test_data() ->
@@ -554,4 +934,25 @@ bad_dates() ->
{{1996, 4, 30}, {12, 0, -1}}, % Sec
{{1996, 4, 30}, {12, 0, 60}}].
-
+
+start_node(Config) ->
+ start_node(Config, "").
+
+start_node(Config, Args) ->
+ TestCase = ?config(testcase, Config),
+ PA = filename:dirname(code:which(?MODULE)),
+ ESTime = erlang:monotonic_time(1) + erlang:time_offset(1),
+ Unique = erlang:unique_integer([positive]),
+ Name = list_to_atom(atom_to_list(?MODULE)
+ ++ "-"
+ ++ atom_to_list(TestCase)
+ ++ "-"
+ ++ integer_to_list(ESTime)
+ ++ "-"
+ ++ integer_to_list(Unique)),
+ test_server:start_node(Name,
+ slave,
+ [{args, "-pa " ++ PA ++ " " ++ Args}]).
+
+stop_node(Node) ->
+ test_server:stop_node(Node).
diff --git a/erts/emulator/test/unique_SUITE.erl b/erts/emulator/test/unique_SUITE.erl
new file mode 100644
index 0000000000..5ad6e59272
--- /dev/null
+++ b/erts/emulator/test/unique_SUITE.erl
@@ -0,0 +1,390 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 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%
+%%
+
+-module(unique_SUITE).
+
+-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
+ init_per_group/2,end_per_group/2,
+ init_per_testcase/2,end_per_testcase/2]).
+-export([unique_monotonic_integer_white_box/1,
+ unique_integer_white_box/1]).
+
+-include_lib("test_server/include/test_server.hrl").
+
+%-define(P(V), V).
+-define(P(V), print_ret_val(?FILE, ?LINE, V)).
+
+-define(PRINT(V), print_ret_val(?FILE, ?LINE, V)).
+
+
+init_per_testcase(Case, Config) ->
+ ?line Dog=test_server:timetrap(test_server:minutes(2)),
+ [{watchdog, Dog}, {testcase, Case}|Config].
+
+end_per_testcase(_, Config) ->
+ Dog=?config(watchdog, Config),
+ test_server:timetrap_cancel(Dog),
+ ok.
+
+suite() -> [{ct_hooks,[ts_install_cth]}].
+
+all() ->
+ [unique_monotonic_integer_white_box,
+ unique_integer_white_box].
+
+groups() ->
+ [].
+
+init_per_suite(Config) ->
+ erts_debug:set_internal_state(available_internal_state, true),
+ Config.
+
+end_per_suite(_Config) ->
+ erts_debug:set_internal_state(available_internal_state, false),
+ ok.
+
+init_per_group(_GroupName, Config) ->
+ Config.
+
+end_per_group(_GroupName, Config) ->
+ Config.
+
+%%
+%%
+%% Unique counter white box test case
+%%
+%%
+
+unique_monotonic_integer_white_box(Config) when is_list(Config) ->
+ {ok, Node} = start_node(Config),
+ TestServer = self(),
+ Success = make_ref(),
+ %% Run this in a separate node, so we don't mess up
+ %% the system when moving the strict monotonic counter
+ %% around in a non-strict monotonic way...
+ Test = spawn(Node,
+ fun () ->
+ unique_monotonic_integer_white_box_test(TestServer, Success)
+ end),
+ Mon = erlang:monitor(process, Test),
+ receive
+ {'DOWN', Mon, process, Test, Error} ->
+ ?t:fail(Error);
+ Success ->
+ ok
+ end,
+ erlang:demonitor(Mon, [flush]),
+ stop_node(Node),
+ ok.
+
+set_unique_monotonic_integer_state(MinCounter, NextValue) ->
+ true = erts_debug:set_internal_state(unique_monotonic_integer_state,
+ NextValue-MinCounter-1).
+
+
+
+unique_monotonic_integer_white_box_test(TestServer, Success) ->
+ erts_debug:set_internal_state(available_internal_state, true),
+
+ WordSize = erlang:system_info({wordsize, internal}),
+ SmallBits = WordSize*8 - 4,
+
+ MinSmall = -1*(1 bsl (SmallBits-1)),
+ MaxSmall = (1 bsl (SmallBits-1))-1,
+ %% Make sure we got small sizes correct...
+ 0 = erts_debug:size(MinSmall),
+ false = 0 =:= erts_debug:size(MinSmall-1),
+ 0 = erts_debug:size(MaxSmall),
+ false = 0 =:= erts_debug:size(MaxSmall+1),
+
+ ?PRINT({min_small, MinSmall}),
+ ?PRINT({max_small, MaxSmall}),
+
+ MinSint64 = -1*(1 bsl 63),
+ MaxSint64 = (1 bsl 63)-1,
+
+ ?PRINT({min_Sint64, MinSint64}),
+ ?PRINT({max_Sint64, MaxSint64}),
+
+ MinCounter = erts_debug:get_internal_state(min_unique_monotonic_integer),
+ MaxCounter = MinCounter + (1 bsl 64) - 1,
+
+ ?PRINT({min_counter, MinCounter}),
+ ?PRINT({max_counter, MaxCounter}),
+
+ case WordSize of
+ 4 ->
+ MinCounter = MinSint64;
+ 8 ->
+ MinCounter = MinSmall
+ end,
+
+ StartState = erts_debug:get_internal_state(unique_monotonic_integer_state),
+
+ %% Verify that we get expected results over all internal limits...
+
+ case MinCounter < MinSmall of
+ false ->
+ 8 = WordSize,
+ ok;
+ true ->
+ 4 = WordSize,
+ ?PRINT(over_min_small),
+ set_unique_monotonic_integer_state(MinCounter, MinSmall-2),
+ true = (?P(erlang:unique_integer([monotonic])) == MinSmall - 2),
+ true = (?P(erlang:unique_integer([monotonic])) == MinSmall - 1),
+ true = (?P(erlang:unique_integer([monotonic])) == MinSmall),
+ true = (?P(erlang:unique_integer([monotonic])) == MinSmall + 1),
+ true = (?P(erlang:unique_integer([monotonic])) == MinSmall + 2),
+ garbage_collect(),
+ ok
+ end,
+
+ ?PRINT(over_zero), %% Not really an interesting limit, but...
+ set_unique_monotonic_integer_state(MinCounter, -2),
+ true = (?P(erlang:unique_integer([monotonic])) == -2),
+ true = (?P(erlang:unique_integer([monotonic])) == -1),
+ true = (?P(erlang:unique_integer([monotonic])) == 0),
+ true = (?P(erlang:unique_integer([monotonic])) == 1),
+ true = (?P(erlang:unique_integer([monotonic])) == 2),
+ garbage_collect(),
+
+ ?PRINT(over_max_small),
+ set_unique_monotonic_integer_state(MinCounter, MaxSmall-2),
+ true = (?P(erlang:unique_integer([monotonic])) == MaxSmall - 2),
+ true = (?P(erlang:unique_integer([monotonic])) == MaxSmall - 1),
+ true = (?P(erlang:unique_integer([monotonic])) == MaxSmall),
+ true = (?P(erlang:unique_integer([monotonic])) == MaxSmall + 1),
+ true = (?P(erlang:unique_integer([monotonic])) == MaxSmall + 2),
+ garbage_collect(),
+
+ case MaxCounter > MaxSint64 of
+ false ->
+ 4 = WordSize,
+ ok;
+ true ->
+ 8 = WordSize,
+ ?PRINT(over_max_sint64),
+ set_unique_monotonic_integer_state(MinCounter, MaxSint64-2),
+ true = (?P(erlang:unique_integer([monotonic])) == MaxSint64 - 2),
+ true = (?P(erlang:unique_integer([monotonic])) == MaxSint64 - 1),
+ true = (?P(erlang:unique_integer([monotonic])) == MaxSint64),
+ true = (?P(erlang:unique_integer([monotonic])) == MaxSint64 + 1),
+ true = (?P(erlang:unique_integer([monotonic])) == MaxSint64 + 2),
+ garbage_collect()
+ end,
+
+ ?PRINT(over_max_min_counter),
+ set_unique_monotonic_integer_state(MinCounter, if MaxCounter == MaxSint64 ->
+ MaxCounter-2;
+ true ->
+ MinCounter-3
+ end),
+ true = (?P(erlang:unique_integer([monotonic])) == MaxCounter - 2),
+ true = (?P(erlang:unique_integer([monotonic])) == MaxCounter - 1),
+ true = (?P(erlang:unique_integer([monotonic])) == MaxCounter),
+ true = (?P(erlang:unique_integer([monotonic])) == MinCounter),
+ true = (?P(erlang:unique_integer([monotonic])) == MinCounter + 1),
+ true = (?P(erlang:unique_integer([monotonic])) == MinCounter + 2),
+ garbage_collect(),
+
+ %% Restore initial state and hope we didn't mess it up for the
+ %% system...
+ true = erts_debug:set_internal_state(unique_monotonic_integer_state,
+ StartState),
+
+ TestServer ! Success.
+
+%%
+%%
+%% Unique integer white box test case
+%%
+%%
+
+-record(uniqint_info, {min_int,
+ max_int,
+ max_small,
+ schedulers,
+ sched_bits}).
+
+unique_integer_white_box(Config) when is_list(Config) ->
+ UinqintInfo = init_uniqint_info(),
+ #uniqint_info{min_int = MinInt,
+ max_int = MaxInt,
+ max_small = MaxSmall} = UinqintInfo,
+ io:format("****************************************************~n", []),
+ io:format("*** Around MIN_UNIQ_INT ~p ***~n", [MinInt]),
+ io:format("****************************************************~n", []),
+ check_unique_integer_around(MinInt, UinqintInfo),
+ io:format("****************************************************~n", []),
+ io:format("*** Around 0 ***~n", []),
+ io:format("****************************************************~n", []),
+ check_unique_integer_around(0, UinqintInfo),
+ io:format("****************************************************~n", []),
+ io:format("*** Around MAX_SMALL ~p ***~n", [MaxSmall]),
+ io:format("****************************************************~n", []),
+ check_unique_integer_around(MaxSmall, UinqintInfo),
+ io:format("****************************************************~n", []),
+ io:format("*** Around 2^64+MIN_UNIQ_INT ~p ***~n", [(1 bsl 64)+MinInt]),
+ io:format("****************************************************~n", []),
+ check_unique_integer_around((1 bsl 64)+MinInt, UinqintInfo),
+ io:format("****************************************************~n", []),
+ io:format("*** Around 2^64 ~p~n", [(1 bsl 64)]),
+ io:format("****************************************************~n", []),
+ check_unique_integer_around((1 bsl 64), UinqintInfo),
+ io:format("****************************************************~n", []),
+ io:format("*** Around 2^64-MIN_UNIQ_INT ~p ***~n", [(1 bsl 64)-MinInt]),
+ io:format("****************************************************~n", []),
+ check_unique_integer_around((1 bsl 64)-MinInt, UinqintInfo),
+ io:format("****************************************************~n", []),
+ io:format("*** Around MAX_UNIQ_INT ~p ***~n", [MaxInt]),
+ io:format("****************************************************~n", []),
+ check_unique_integer_around(MaxInt, UinqintInfo),
+ ok.
+
+
+%%% Internal unique_integer_white_box/1 test case
+
+calc_sched_bits(NoScheds, Shift) when NoScheds < 1 bsl Shift ->
+ Shift;
+calc_sched_bits(NoScheds, Shift) ->
+ calc_sched_bits(NoScheds, Shift+1).
+
+init_uniqint_info() ->
+ SmallBits = erlang:system_info({wordsize, internal})*8-4,
+ io:format("SmallBits=~p~n", [SmallBits]),
+ Schedulers = erlang:system_info(schedulers),
+ io:format("Schedulers=~p~n", [Schedulers]),
+ MinSmall = -1*(1 bsl (SmallBits-1)),
+ io:format("MinSmall=~p~n", [MinSmall]),
+ MaxSmall = (1 bsl (SmallBits-1))-1,
+ io:format("MaxSmall=~p~n", [MaxSmall]),
+ SchedBits = calc_sched_bits(Schedulers, 0),
+ io:format("SchedBits=~p~n", [SchedBits]),
+ MaxInt = ((((1 bsl 64) - 1) bsl SchedBits) bor Schedulers) + MinSmall,
+ io:format("MaxInt=~p~n", [MaxInt]),
+ #uniqint_info{min_int = MinSmall,
+ max_int = MaxInt,
+ max_small = MaxSmall,
+ schedulers = Schedulers,
+ sched_bits = SchedBits}.
+
+valid_uniqint(Int, #uniqint_info{min_int = MinInt} = UinqintInfo) when Int < MinInt ->
+ valid_uniqint(MinInt, UinqintInfo);
+valid_uniqint(Int, #uniqint_info{min_int = MinInt,
+ sched_bits = SchedBits,
+ schedulers = Scheds}) ->
+ Int1 = Int - MinInt,
+ {Inc, ThreadNo} = case Int1 band ((1 bsl SchedBits) - 1) of
+ TN when TN > Scheds ->
+ {1, Scheds};
+ TN ->
+ {0, TN}
+ end,
+ Counter = ((Int1 bsr SchedBits) + Inc) rem (1 bsl 64),
+ ((Counter bsl SchedBits) bor ThreadNo) + MinInt.
+
+smaller_valid_uniqint(Int, UinqintInfo) ->
+ Cand = Int-1,
+ case valid_uniqint(Cand, UinqintInfo) of
+ RI when RI < Int ->
+ RI;
+ _ ->
+ smaller_valid_uniqint(Cand, UinqintInfo)
+ end.
+
+int32_to_bigendian_list(Int) ->
+ 0 = Int bsr 32,
+ [(Int bsr 24) band 16#ff,
+ (Int bsr 16) band 16#ff,
+ (Int bsr 8) band 16#ff,
+ Int band 16#ff].
+
+mk_uniqint(Int, #uniqint_info {min_int = MinInt,
+ sched_bits = SchedBits} = _UinqintInfo) ->
+ Int1 = Int - MinInt,
+ ThrId = Int1 band ((1 bsl SchedBits) - 1),
+ Value = (Int1 bsr SchedBits) band ((1 bsl 64) - 1),
+ 0 = Int1 bsr (SchedBits + 64),
+ NodeName = atom_to_list(node()),
+ Make = {make_unique_integer, ThrId, Value},
+ %% erlang:display(Make),
+ Res = erts_debug:get_internal_state(Make),
+ %% erlang:display({uniq_int, Res}),
+ Res.
+
+check_uniqint(Int, UinqintInfo) ->
+ UniqInt = mk_uniqint(Int, UinqintInfo),
+ io:format("UniqInt=~p ", [UniqInt]),
+ case UniqInt =:= Int of
+ true ->
+ io:format("OK~n~n", []);
+ false ->
+ io:format("result UniqInt=~p FAILED~n", [UniqInt]),
+ exit(badres)
+ end.
+
+check_unique_integer_around(Int, #uniqint_info{min_int = MinInt,
+ max_int = MaxInt} = UinqintInfo) ->
+ {Start, End} = case {Int =< MinInt+100, Int >= MaxInt-100} of
+ {true, false} ->
+ {MinInt, MinInt+100};
+ {false, false} ->
+ {smaller_valid_uniqint(Int-100, UinqintInfo),
+ valid_uniqint(Int+100, UinqintInfo)};
+ {false, true} ->
+ {MaxInt-100, MaxInt}
+ end,
+ lists:foldl(fun (I, OldRefInt) ->
+ RefInt = valid_uniqint(I, UinqintInfo),
+ case OldRefInt =:= RefInt of
+ true ->
+ ok;
+ false ->
+ check_uniqint(RefInt, UinqintInfo)
+ end,
+ RefInt
+ end,
+ none,
+ lists:seq(Start, End)).
+
+
+%% helpers
+
+print_ret_val(File, Line, Value) ->
+ io:format("~s:~p: ~p~n", [File, Line, Value]),
+ Value.
+
+start_node(Config) ->
+ start_node(Config, []).
+start_node(Config, Opts) when is_list(Config), is_list(Opts) ->
+ ?line Pa = filename:dirname(code:which(?MODULE)),
+ ?line A = erlang:monotonic_time(1) + erlang:time_offset(1),
+ ?line B = erlang:unique_integer([positive]),
+ ?line Name = list_to_atom(atom_to_list(?MODULE)
+ ++ "-"
+ ++ atom_to_list(?config(testcase, Config))
+ ++ "-"
+ ++ integer_to_list(A)
+ ++ "-"
+ ++ integer_to_list(B)),
+ ?line ?t:start_node(Name, slave, [{args, Opts++" -pa "++Pa}]).
+
+stop_node(Node) ->
+ ?t:stop_node(Node).
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-05 06:50:53 +0000