diff options
Diffstat (limited to 'lib/stdlib')
| -rw-r--r-- | lib/stdlib/test/ets_SUITE.erl | 140 |
1 files changed, 138 insertions, 2 deletions
diff --git a/lib/stdlib/test/ets_SUITE.erl b/lib/stdlib/test/ets_SUITE.erl index 87ca9bd32c..cd32f25abd 100644 --- a/lib/stdlib/test/ets_SUITE.erl +++ b/lib/stdlib/test/ets_SUITE.erl @@ -42,6 +42,8 @@ select_bound_chunk/1, t_delete_all_objects/1, t_insert_list/1, t_test_ms/1, t_select_delete/1,t_select_replace/1,t_select_replace_next_bug/1,t_ets_dets/1]). +-export([test_table_size_concurrency/1,test_table_memory_concurrency/1, + test_delete_table_while_size_snapshot/1, test_delete_table_while_size_snapshot_helper/0]). -export([ordered/1, ordered_match/1, interface_equality/1, fixtable_next/1, fixtable_insert/1, rename/1, rename_unnamed/1, evil_rename/1, @@ -156,7 +158,11 @@ all() -> whereis_table, delete_unfix_race, test_throughput_benchmark, - {group, benchmark}]. + {group, benchmark}, + test_table_size_concurrency, + test_table_memory_concurrency, + test_delete_table_while_size_snapshot]. + groups() -> [{new, [], @@ -828,7 +834,11 @@ adjust_xmem([_T1,_T2,_T3,_T4], {A0,B0,C0,D0} = _Mem0, EstCnt) -> {TabSz, EstSz} = erts_debug:get_internal_state('DbTable_words'), HTabSz = TabSz + EstCnt*EstSz, - {A0+TabSz, B0+HTabSz, C0+HTabSz, D0+HTabSz}. + OrdSetExtra = case erlang:system_info(wordsize) of + 8 -> 40; % larger stack on 64 bit architectures + _ -> 0 + end, + {A0+TabSz+OrdSetExtra, B0+HTabSz, C0+HTabSz, D0+HTabSz}. %% Misc. whitebox tests t_whitebox(Config) when is_list(Config) -> @@ -4102,6 +4112,11 @@ slot_do(Opts) -> fill_tab(Tab,foo), Elts = ets:info(Tab,size), Elts = slot_loop(Tab,0,0), + case ets:info(Tab, type) of + ordered_set -> + '$end_of_table' = ets:slot(Tab,Elts); + _ -> ok + end, true = ets:delete(Tab), verify_etsmem(EtsMem). @@ -4453,6 +4468,127 @@ info_do(Opts) -> undefined = ets:info(non_existing_table_xxyy,safe_fixed), verify_etsmem(EtsMem). +size_loop(_T, 0, _, _) -> + ok; +size_loop(T, I, PrevSize, WhatToTest) -> + Size = ets:info(T, WhatToTest), + case Size < PrevSize of + true -> ct:fail("Bad ets:info/2"); + _ -> ok + end, + size_loop(T, I -1, Size, WhatToTest). + +add_loop(_T, 0) -> + ok; +add_loop(T, I) -> + ets:insert(T, {I}), + add_loop(T, I -1). + + +test_table_counter_concurrency(WhatToTest) -> + ItemsToAdd = 1000000, + SizeLoopSize = 1000, + T = ets:new(k, [public, ordered_set, {write_concurrency, true}]), + 0 = ets:info(T, size), + P = self(), + SpawnedSizeProcs = + [spawn(fun() -> + size_loop(T, SizeLoopSize, 0, WhatToTest), + P ! done + end) + || _ <- lists:seq(1, 6)], + spawn(fun() -> + add_loop(T, ItemsToAdd), + P ! done_add + end), + [receive + done -> ok; + done_add -> ok + end + || _ <- [ok|SpawnedSizeProcs]], + case WhatToTest =:= size of + true -> + ItemsToAdd = ets:info(T, size); + _ -> + ok + end, + ok. + +test_table_size_concurrency(Config) when is_list(Config) -> + test_table_counter_concurrency(size). + +test_table_memory_concurrency(Config) when is_list(Config) -> + test_table_counter_concurrency(memory). + +%% Tests that calling the ets:delete operation on a table T with +%% decentralized counters works while ets:info(T, size) operations are +%% active +test_delete_table_while_size_snapshot(Config) when is_list(Config) -> + %% Run test case in a slave node as other test suites in stdlib + %% depend on that pids are ordered in creation order which is no + %% longer the case when many processes have been started before + Node = start_slave(), + ok = rpc:call(Node, ?MODULE, test_delete_table_while_size_snapshot_helper, []), + test_server:stop_node(Node), + ok. + +test_delete_table_while_size_snapshot_helper()-> + TopParent = self(), + repeat_par( + fun() -> + Table = ets:new(t, [public, ordered_set, + {write_concurrency, true}]), + Parent = self(), + NrOfSizeProcs = 100, + Pids = [ spawn(fun()-> size_process(Table, Parent) end) + || _ <- lists:seq(1, NrOfSizeProcs)], + timer:sleep(1), + ets:delete(Table), + [receive + table_gone -> ok; + Problem -> TopParent ! Problem + end || _ <- Pids] + end, + 15000), + receive + Problem -> throw(Problem) + after 0 -> ok + end. + +size_process(Table, Parent) -> + try ets:info(Table, size) of + N when is_integer(N) -> + size_process(Table, Parent); + undefined -> Parent ! table_gone; + E -> Parent ! {got_unexpected, E} + catch + E -> Parent ! {got_unexpected_exception, E} + end. + +start_slave() -> + MicroSecs = erlang:monotonic_time(), + Name = "ets_" ++ integer_to_list(MicroSecs), + Pa = filename:dirname(code:which(?MODULE)), + {ok, Node} = test_server:start_node(list_to_atom(Name), slave, [{args, "-pa " ++ Pa}]), + Node. + +repeat_par(FunToRepeat, NrOfTimes) -> + repeat_par_help(FunToRepeat, NrOfTimes, NrOfTimes). + +repeat_par_help(_FunToRepeat, 0, OrgNrOfTimes) -> + repeat(fun()-> receive done -> ok end end, OrgNrOfTimes); +repeat_par_help(FunToRepeat, NrOfTimes, OrgNrOfTimes) -> + Parent = self(), + case NrOfTimes rem 5 of + 0 -> timer:sleep(1); + _ -> ok + end, + spawn(fun()-> + FunToRepeat(), + Parent ! done + end), + repeat_par_help(FunToRepeat, NrOfTimes-1, OrgNrOfTimes). + %% Test various duplicate_bags stuff. dups(Config) when is_list(Config) -> repeat_for_opts(fun dups_do/1). |