diff options
Diffstat (limited to 'erts')
| -rw-r--r-- | erts/emulator/test/gc_SUITE.erl | 151 |
1 files changed, 76 insertions, 75 deletions
diff --git a/erts/emulator/test/gc_SUITE.erl b/erts/emulator/test/gc_SUITE.erl index 35dd147550..2c2cb9c32d 100644 --- a/erts/emulator/test/gc_SUITE.erl +++ b/erts/emulator/test/gc_SUITE.erl @@ -203,89 +203,90 @@ long_receive() -> end. minor_major_gc_option_self(_Config) -> - Endless = fun Endless() -> - receive - {gc, Type} -> erlang:garbage_collect(self(), [{type, Type}]) - after 100 -> ok end, - Endless() - end, - - %% Try as major, a test process will self-trigger GC - P1 = spawn(Endless), - erlang:garbage_collect(P1, []), - erlang:trace(P1, true, [garbage_collection]), - P1 ! {gc, major}, - expect_trace_messages(P1, [gc_major_start, gc_major_end]), - erlang:trace(P1, false, [garbage_collection]), - erlang:exit(P1, kill), - - %% Try as minor, a test process will self-trigger GC - P2 = spawn(Endless), - erlang:garbage_collect(P2, []), - erlang:trace(P2, true, [garbage_collection]), - P2 ! {gc, minor}, - expect_trace_messages(P2, [gc_minor_start, gc_minor_end]), - erlang:trace(P2, false, [garbage_collection]), - erlang:exit(P2, kill). + %% Try as major, the test process will self-trigger GC + check_gc_tracing_around( + fun(Pid, Ref) -> + Pid ! {gc, Ref, major} + end, [gc_major_start, gc_major_end]), + + %% Try as minor, the test process will self-trigger GC + check_gc_tracing_around( + fun(Pid, Ref) -> + Pid ! {gc, Ref, minor} + end, [gc_minor_start, gc_minor_end]). minor_major_gc_option_async(_Config) -> - Endless = fun Endless() -> - receive after 100 -> ok end, - Endless() - end, - - %% Try with default option, must be major gc - P1 = spawn(Endless), - erlang:garbage_collect(P1, []), - erlang:trace(P1, true, [garbage_collection]), - erlang:garbage_collect(P1, []), - expect_trace_messages(P1, [gc_major_start, gc_major_end]), - erlang:trace(P1, false, [garbage_collection]), - erlang:exit(P1, kill), + %% Try with default option, must be major GC + check_gc_tracing_around( + fun(Pid, _Ref) -> + erlang:garbage_collect(Pid, []) + end, [gc_major_start, gc_major_end]), %% Try with the 'major' type - P2 = spawn(Endless), - erlang:garbage_collect(P2, []), - erlang:trace(P2, true, [garbage_collection]), - erlang:garbage_collect(P2, [{type, major}]), - expect_trace_messages(P2, [gc_major_start, gc_major_end]), - erlang:trace(P2, false, [garbage_collection]), - erlang:exit(P2, kill), + check_gc_tracing_around( + fun(Pid, _Ref) -> + erlang:garbage_collect(Pid, [{type, major}]) + end, [gc_major_start, gc_major_end]), %% Try with 'minor' option, once - P3 = spawn(Endless), - erlang:garbage_collect(P3, []), - erlang:trace(P3, true, [garbage_collection]), - erlang:garbage_collect(P3, [{type, minor}]), - expect_trace_messages(P3, [gc_minor_start, gc_minor_end]), - erlang:trace(P3, false, [garbage_collection]), - erlang:exit(P3, kill), + check_gc_tracing_around( + fun(Pid, _Ref) -> + erlang:garbage_collect(Pid, [{type, minor}]) + end, [gc_minor_start, gc_minor_end]), %% Try with 'minor' option, once, async - P4 = spawn(Endless), + check_gc_tracing_around( + fun(Pid, Ref) -> + ?assertEqual(async, + erlang:garbage_collect(Pid, [{type, minor}, {async, Ref}])), + + receive + {garbage_collect, Ref, true} -> + ok + after 10000 -> + ct:fail("Did not receive a completion notification on async GC") + end + end, [gc_minor_start, gc_minor_end]). + +%% Traces garbage collection around the given operation, and fails the test if +%% it results in any unexpected messages or if the expected trace tags are not +%% received. +check_gc_tracing_around(Fun, ExpectedTraceTags) -> Ref = erlang:make_ref(), - erlang:garbage_collect(P4, []), - erlang:trace(P4, true, [garbage_collection]), - ?assertEqual(async, - erlang:garbage_collect(P4, [{type, minor}, {async, Ref}])), - expect_trace_messages(P4, [gc_minor_start, gc_minor_end]), - erlang:trace(P4, false, [garbage_collection]), - receive {garbage_collect, Ref, true} -> ok; - Other4 -> ct:pal("Unexpected message: ~p~n" - ++ "while waiting for async gc result", [Other4]) - after 2000 -> ?assert(false) - end, - erlang:exit(P4, kill). - -%% Given a list of atoms, trace tags - receives messages and checks if they are -%% trace events, and if the tag matches. Else will crash failing the test. -expect_trace_messages(_Pid, []) -> ok; + Pid = spawn( + fun Endless() -> + receive + {gc, Ref, Type} -> + erlang:garbage_collect(self(), [{type, Type}]) + after 100 -> + ok + end, + Endless() + end), + erlang:garbage_collect(Pid, []), + erlang:trace(Pid, true, [garbage_collection]), + Fun(Pid, Ref), + expect_trace_messages(Pid, ExpectedTraceTags), + erlang:trace(Pid, false, [garbage_collection]), + erlang:exit(Pid, kill), + check_no_unexpected_messages(). + +%% Ensures that trace messages with the provided tags have all been received +%% within a reasonable timeframe. +expect_trace_messages(_Pid, []) -> + ok; expect_trace_messages(Pid, [Tag | TraceTags]) -> receive - {trace, Pid, Tag, _Data} -> ok; - AnythingElse -> - ct:pal("Unexpected message: ~p~nWhile expected {trace, _, ~p, _}", - [AnythingElse, Tag]), - ?assert(false) - end, - expect_trace_messages(Pid, TraceTags). + {trace, Pid, Tag, _Data} -> + expect_trace_messages(Pid, TraceTags) + after 4000 -> + ct:fail("Didn't receive tag ~p within 4000ms", [Tag]) + end. + +check_no_unexpected_messages() -> + receive + Anything -> + ct:fail("Unexpected message: ~p", [Anything]) + after 0 -> + ok + end. |