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-rw-r--r--erts/emulator/test/binary_SUITE.erl141
-rw-r--r--erts/emulator/test/code_parallel_load_SUITE.erl36
-rw-r--r--erts/emulator/test/process_SUITE.erl219
3 files changed, 335 insertions, 61 deletions
diff --git a/erts/emulator/test/binary_SUITE.erl b/erts/emulator/test/binary_SUITE.erl
index a340a805b5..6b5c542b8a 100644
--- a/erts/emulator/test/binary_SUITE.erl
+++ b/erts/emulator/test/binary_SUITE.erl
@@ -447,26 +447,26 @@ terms(Config) when is_list(Config) ->
Sz1 when is_integer(Sz1), size(Bin1) =< Sz1 ->
ok
end,
- Term = binary_to_term(Bin),
- Term = binary_to_term(Bin, [safe]),
+ Term = binary_to_term_stress(Bin),
+ Term = binary_to_term_stress(Bin, [safe]),
Unaligned = make_unaligned_sub_binary(Bin),
- Term = binary_to_term(Unaligned),
- Term = binary_to_term(Unaligned, []),
- Term = binary_to_term(Bin, [safe]),
+ Term = binary_to_term_stress(Unaligned),
+ Term = binary_to_term_stress(Unaligned, []),
+ Term = binary_to_term_stress(Bin, [safe]),
BinC = erlang:term_to_binary(Term, [compressed]),
- Term = binary_to_term(BinC),
+ Term = binary_to_term_stress(BinC),
true = size(BinC) =< size(Bin),
Bin = term_to_binary(Term, [{compressed,0}]),
terms_compression_levels(Term, size(Bin), 1),
UnalignedC = make_unaligned_sub_binary(BinC),
- Term = binary_to_term(UnalignedC)
+ Term = binary_to_term_stress(UnalignedC)
end,
?line test_terms(TestFun),
ok.
terms_compression_levels(Term, UncompressedSz, Level) when Level < 10 ->
BinC = erlang:term_to_binary(Term, [{compressed,Level}]),
- Term = binary_to_term(BinC),
+ Term = binary_to_term_stress(BinC),
Sz = byte_size(BinC),
true = Sz =< UncompressedSz,
terms_compression_levels(Term, UncompressedSz, Level+1);
@@ -476,9 +476,9 @@ terms_float(Config) when is_list(Config) ->
?line test_floats(fun(Term) ->
Bin0 = term_to_binary(Term),
Bin0 = term_to_binary(Term, [{minor_version,0}]),
- Term = binary_to_term(Bin0),
+ Term = binary_to_term_stress(Bin0),
Bin1 = term_to_binary(Term, [{minor_version,1}]),
- Term = binary_to_term(Bin1),
+ Term = binary_to_term_stress(Bin1),
true = size(Bin1) < size(Bin0),
Size0 = erlang:external_size(Term),
Size00 = erlang:external_size(Term, [{minor_version, 0}]),
@@ -490,7 +490,7 @@ terms_float(Config) when is_list(Config) ->
float_middle_endian(Config) when is_list(Config) ->
%% Testing for roundtrip is not enough.
?line <<131,70,63,240,0,0,0,0,0,0>> = term_to_binary(1.0, [{minor_version,1}]),
- ?line 1.0 = binary_to_term(<<131,70,63,240,0,0,0,0,0,0>>).
+ ?line 1.0 = binary_to_term_stress(<<131,70,63,240,0,0,0,0,0,0>>).
external_size(Config) when is_list(Config) ->
%% Build a term whose external size only fits in a big num (on 32-bit CPU).
@@ -608,10 +608,10 @@ bad_binary_to_term(Config) when is_list(Config) ->
ok.
bad_bin_to_term(BadBin) ->
- {'EXIT',{badarg,_}} = (catch binary_to_term(BadBin)).
+ {'EXIT',{badarg,_}} = (catch binary_to_term_stress(BadBin)).
bad_bin_to_term(BadBin,Opts) ->
- {'EXIT',{badarg,_}} = (catch binary_to_term(BadBin,Opts)).
+ {'EXIT',{badarg,_}} = (catch binary_to_term_stress(BadBin,Opts)).
safe_binary_to_term2(doc) -> "Test safety options for binary_to_term/2";
safe_binary_to_term2(Config) when is_list(Config) ->
@@ -622,7 +622,7 @@ safe_binary_to_term2(Config) when is_list(Config) ->
BadRef = <<131,114,0,3,BadHostAtom/binary,0,<<0,0,0,255>>/binary,
Empty/binary,Empty/binary>>,
?line bad_bin_to_term(BadRef, [safe]), % good ref, with a bad atom
- ?line fullsweep_after = binary_to_term(<<131,100,0,15,"fullsweep_after">>, [safe]), % should be a good atom
+ ?line fullsweep_after = binary_to_term_stress(<<131,100,0,15,"fullsweep_after">>, [safe]), % should be a good atom
BadExtFun = <<131,113,100,0,4,98,108,117,101,100,0,4,109,111,111,110,97,3>>,
?line bad_bin_to_term(BadExtFun, [safe]),
ok.
@@ -679,14 +679,14 @@ corrupter0(Term) ->
corrupter(Bin, Pos) when Pos >= 0 ->
?line {ShorterBin, Rest} = split_binary(Bin, Pos),
- ?line catch binary_to_term(ShorterBin), %% emulator shouldn't crash
+ ?line catch binary_to_term_stress(ShorterBin), %% emulator shouldn't crash
?line MovedBin = list_to_binary([ShorterBin]),
- ?line catch binary_to_term(MovedBin), %% emulator shouldn't crash
+ ?line catch binary_to_term_stress(MovedBin), %% emulator shouldn't crash
%% Bit faults, shouldn't crash
<<Byte,Tail/binary>> = Rest,
Fun = fun(M) -> FaultyByte = Byte bxor M,
- catch binary_to_term(<<ShorterBin/binary,
+ catch binary_to_term_stress(<<ShorterBin/binary,
FaultyByte, Tail/binary>>) end,
?line lists:foreach(Fun,[1,2,4,8,16,32,64,128,255]),
?line corrupter(Bin, Pos-1);
@@ -700,7 +700,7 @@ more_bad_terms(Config) when is_list(Config) ->
?line ok = io:format("File: ~s\n", [BadFile]),
?line case file:read_file(BadFile) of
{ok,Bin} ->
- ?line {'EXIT',{badarg,_}} = (catch binary_to_term(Bin)),
+ ?line {'EXIT',{badarg,_}} = (catch binary_to_term_stress(Bin)),
ok;
Other ->
?line ?t:fail(Other)
@@ -709,7 +709,7 @@ more_bad_terms(Config) when is_list(Config) ->
otp_5484(Config) when is_list(Config) ->
?line {'EXIT',_} =
(catch
- binary_to_term(
+ binary_to_term_stress(
<<131,
104,2, %Tuple, 2 elements
103, %Pid
@@ -722,7 +722,7 @@ otp_5484(Config) when is_list(Config) ->
?line {'EXIT',_} =
(catch
- binary_to_term(
+ binary_to_term_stress(
<<131,
104,2, %Tuple, 2 elements
103, %Pid
@@ -734,13 +734,13 @@ otp_5484(Config) when is_list(Config) ->
?line {'EXIT',_} =
(catch
- binary_to_term(
+ binary_to_term_stress(
%% A old-type fun in a list containing a bad creator pid.
<<131,108,0,0,0,1,117,0,0,0,0,103,100,0,13,110,111,110,111,100,101,64,110,111,104,111,115,116,255,255,0,25,255,0,0,0,0,100,0,1,116,97,0,98,6,142,121,72,106>>)),
?line {'EXIT',_} =
(catch
- binary_to_term(
+ binary_to_term_stress(
%% A new-type fun in a list containing a bad creator pid.
%%
<<131,
@@ -752,7 +752,7 @@ otp_5484(Config) when is_list(Config) ->
?line {'EXIT',_} =
(catch
- binary_to_term(
+ binary_to_term_stress(
%% A new-type fun in a list containing a bad module.
<<131,
108,0,0,0,1, %List, 1 element
@@ -763,7 +763,7 @@ otp_5484(Config) when is_list(Config) ->
?line {'EXIT',_} =
(catch
- binary_to_term(
+ binary_to_term_stress(
%% A new-type fun in a list containing a bad index.
<<131,
108,0,0,0,1, %List, 1 element
@@ -775,7 +775,7 @@ otp_5484(Config) when is_list(Config) ->
?line {'EXIT',_} =
(catch
- binary_to_term(
+ binary_to_term_stress(
%% A new-type fun in a list containing a bad unique value.
<<131,
108,0,0,0,1, %List, 1 element
@@ -788,46 +788,46 @@ otp_5484(Config) when is_list(Config) ->
%% An absurdly large atom.
?line {'EXIT',_} =
- (catch binary_to_term(iolist_to_binary([<<131,100,65000:16>>|
+ (catch binary_to_term_stress(iolist_to_binary([<<131,100,65000:16>>|
lists:duplicate(65000, 42)]))),
%% Longer than 255 characters.
?line {'EXIT',_} =
- (catch binary_to_term(iolist_to_binary([<<131,100,256:16>>|
+ (catch binary_to_term_stress(iolist_to_binary([<<131,100,256:16>>|
lists:duplicate(256, 42)]))),
%% OTP-7218. Thanks to Matthew Dempsky. Also make sure that we
%% cover the other error cases for external funs (EXPORT_EXT).
?line {'EXIT',_} =
- (catch binary_to_term(
+ (catch binary_to_term_stress(
<<131,
113, %EXPORT_EXP
97,13, %Integer: 13
97,13, %Integer: 13
97,13>>)), %Integer: 13
?line {'EXIT',_} =
- (catch binary_to_term(
+ (catch binary_to_term_stress(
<<131,
113, %EXPORT_EXP
100,0,1,64, %Atom: '@'
97,13, %Integer: 13
97,13>>)), %Integer: 13
?line {'EXIT',_} =
- (catch binary_to_term(
+ (catch binary_to_term_stress(
<<131,
113, %EXPORT_EXP
100,0,1,64, %Atom: '@'
100,0,1,64, %Atom: '@'
106>>)), %NIL
?line {'EXIT',_} =
- (catch binary_to_term(
+ (catch binary_to_term_stress(
<<131,
113, %EXPORT_EXP
100,0,1,64, %Atom: '@'
100,0,1,64, %Atom: '@'
98,255,255,255,255>>)), %Integer: -1
?line {'EXIT',_} =
- (catch binary_to_term(
+ (catch binary_to_term_stress(
<<131,
113, %EXPORT_EXP
100,0,1,64, %Atom: '@'
@@ -835,7 +835,7 @@ otp_5484(Config) when is_list(Config) ->
113,97,13,97,13,97,13>>)), %fun 13:13/13
%% Bad funs.
- ?line {'EXIT',_} = (catch binary_to_term(fake_fun(0, lists:seq(0, 256)))),
+ ?line {'EXIT',_} = (catch binary_to_term_stress(fake_fun(0, lists:seq(0, 256)))),
ok.
fake_fun(Arity, Env0) ->
@@ -869,7 +869,7 @@ try_bad_lengths(B) ->
try_bad_lengths(B, L) when L > 16#FFFFFFF0 ->
Bin = <<B/binary,L:32>>,
io:format("~p\n", [Bin]),
- {'EXIT',_} = (catch binary_to_term(Bin)),
+ {'EXIT',_} = (catch binary_to_term_stress(Bin)),
try_bad_lengths(B, L-1);
try_bad_lengths(_, _) -> ok.
@@ -923,7 +923,7 @@ otp_6817_try_bin(Bin) ->
%% If the bug is present, the heap pointer will moved when the invalid term
%% is found and we will have a linked list passing through the limbo area
%% between the heap top and the stack pointer.
- catch binary_to_term(Bin),
+ catch binary_to_term_stress(Bin),
%% If the bug is present, we will overwrite the pointers in the limbo area.
Filler = erlang:make_tuple(1024, 16#3FA),
@@ -1233,7 +1233,7 @@ bit_sized_binary_sizes(Config) when is_list(Config) ->
bsbs_1(A) ->
BinSize = 32+A,
io:format("A: ~p BinSize: ~p", [A,BinSize]),
- Bin = binary_to_term(<<131,$M,5:32,A,0,0,0,0,0>>),
+ Bin = binary_to_term_stress(<<131,$M,5:32,A,0,0,0,0,0>>),
BinSize = bit_size(Bin).
deep(Config) when is_list(Config) ->
@@ -1250,7 +1250,7 @@ deep(Config) when is_list(Config) ->
deep_roundtrip(T) ->
B = term_to_binary(T),
- T = binary_to_term(B).
+ T = binary_to_term_stress(B).
obsolete_funs(Config) when is_list(Config) ->
erts_debug:set_internal_state(available_internal_state, true),
@@ -1285,29 +1285,29 @@ obsolete_fun(Fun) ->
Tuple = no_fun_roundtrip(Fun).
no_fun_roundtrip(Term) ->
- binary_to_term(erts_debug:get_internal_state({term_to_binary_no_funs,Term})).
+ binary_to_term_stress(erts_debug:get_internal_state({term_to_binary_no_funs,Term})).
%% Test non-standard encodings never generated by term_to_binary/1
%% but recognized by binary_to_term/1.
robustness(Config) when is_list(Config) ->
- ?line [] = binary_to_term(<<131,107,0,0>>), %Empty string.
- ?line [] = binary_to_term(<<131,108,0,0,0,0,106>>), %Zero-length list.
+ ?line [] = binary_to_term_stress(<<131,107,0,0>>), %Empty string.
+ ?line [] = binary_to_term_stress(<<131,108,0,0,0,0,106>>), %Zero-length list.
%% {[],a} where [] is a zero-length list.
- ?line {[],a} = binary_to_term(<<131,104,2,108,0,0,0,0,106,100,0,1,97>>),
+ ?line {[],a} = binary_to_term_stress(<<131,104,2,108,0,0,0,0,106,100,0,1,97>>),
%% {42,a} where 42 is a zero-length list with 42 in the tail.
- ?line {42,a} = binary_to_term(<<131,104,2,108,0,0,0,0,97,42,100,0,1,97>>),
+ ?line {42,a} = binary_to_term_stress(<<131,104,2,108,0,0,0,0,97,42,100,0,1,97>>),
%% {{x,y},a} where {x,y} is a zero-length list with {x,y} in the tail.
- ?line {{x,y},a} = binary_to_term(<<131,104,2,108,0,0,0,0,
+ ?line {{x,y},a} = binary_to_term_stress(<<131,104,2,108,0,0,0,0,
104,2,100,0,1,120,100,0,1,
121,100,0,1,97>>),
%% Bignums fitting in 32 bits.
- ?line 16#7FFFFFFF = binary_to_term(<<131,98,127,255,255,255>>),
- ?line -1 = binary_to_term(<<131,98,255,255,255,255>>),
+ ?line 16#7FFFFFFF = binary_to_term_stress(<<131,98,127,255,255,255>>),
+ ?line -1 = binary_to_term_stress(<<131,98,255,255,255,255>>),
ok.
@@ -1325,7 +1325,7 @@ run_otp_8180(Name) ->
?line {ok,Bins} = file:consult(Name),
[begin
io:format("~p\n", [Bin]),
- ?line {'EXIT',{badarg,_}} = (catch binary_to_term(Bin))
+ ?line {'EXIT',{badarg,_}} = (catch binary_to_term_stress(Bin))
end || Bin <- Bins],
ok.
@@ -1394,3 +1394,52 @@ unaligned_sub_bin(Bin0, Offs) ->
Bin.
id(I) -> I.
+
+
+%% Stress binary_to_term with different initial reductions
+binary_to_term_stress(Bin) ->
+ binary_to_term_stress(Bin, no_opts).
+
+binary_to_term_stress(Bin, Opts) ->
+ Reds = get_reds(),
+ T = b2t(erlang:system_info(context_reductions),
+ Bin, Opts, catch_binary_to_term(Bin, Opts)),
+ set_reds(Reds),
+ T = case Opts of
+ no_opts -> binary_to_term(Bin);
+ _ -> binary_to_term(Bin,Opts)
+ end.
+
+catch_binary_to_term(Bin, no_opts) ->
+ try binary_to_term(Bin)
+ catch
+ error:badarg -> binary_to_term_throws_badarg
+ end;
+catch_binary_to_term(Bin, Opts) ->
+ try binary_to_term(Bin, Opts)
+ catch
+ error:badarg -> binary_to_term_throws_badarg
+ end.
+
+b2t(0, _Bin, _Opts, Term) ->
+ Term;
+b2t(Reds, Bin, Opts, Term) ->
+ set_reds(Reds),
+ Term = catch_binary_to_term(Bin,Opts),
+ b2t(Reds div 3, Bin, Opts, Term).
+
+set_reds(Reds) ->
+ try erts_debug:set_internal_state(reds_left, Reds)
+ catch
+ error:undef ->
+ erts_debug:set_internal_state(available_internal_state, true),
+ set_reds(Reds)
+ end.
+
+get_reds() ->
+ try erts_debug:get_internal_state(reds_left)
+ catch
+ error:undef ->
+ erts_debug:set_internal_state(available_internal_state, true),
+ get_reds()
+ end.
diff --git a/erts/emulator/test/code_parallel_load_SUITE.erl b/erts/emulator/test/code_parallel_load_SUITE.erl
index 1cfe015ea6..428f1242ab 100644
--- a/erts/emulator/test/code_parallel_load_SUITE.erl
+++ b/erts/emulator/test/code_parallel_load_SUITE.erl
@@ -159,22 +159,34 @@ setup_checkers(_,0) -> [];
setup_checkers(T,N) -> [spawn_link(fun() -> ?model:check(T) end) | setup_checkers(T, N-1)].
check_and_purge_processes_code(Pids, M) ->
- check_and_purge_processes_code(Pids, M, []).
-check_and_purge_processes_code([], M, []) ->
+ Tag = make_ref(),
+ N = request_cpc(Pids, M, Tag),
+ ok = handle_cpc_responses(N, Tag, M),
erlang:purge_module(M),
+ ok.
+
+request_cpc(Pid, M, Tag) when is_pid(Pid) ->
+ erlang:check_process_code(Pid, M, [{async, {Tag, Pid}}]),
+ 1;
+request_cpc(Pids, M, Tag) when is_list(Pids) ->
+ request_cpc(Pids, M, Tag, 0).
+
+request_cpc([], _M, _Tag, N) ->
+ N;
+request_cpc([Pid|Pids], M, Tag, N) ->
+ request_cpc(Pids, M, Tag, N + request_cpc(Pid, M, Tag)).
+
+handle_cpc_responses(0, _Tag, _Module) ->
ok;
-check_and_purge_processes_code([], M, Pending) ->
- io:format("Processes ~w are still executing old code - retrying.~n", [Pending]),
- check_and_purge_processes_code(Pending, M, []);
-check_and_purge_processes_code([Pid|Pids], M, Pending) ->
- case erlang:check_process_code(Pid, M) of
- false ->
- check_and_purge_processes_code(Pids, M, Pending);
- true ->
- check_and_purge_processes_code(Pids, M, [Pid|Pending])
+handle_cpc_responses(N, Tag, Module) ->
+ receive
+ {check_process_code, {Tag, _Pid}, false} ->
+ handle_cpc_responses(N-1, Tag, Module);
+ {check_process_code, {Tag, Pid}, true} ->
+ 1 = request_cpc(Pid, Module, Tag),
+ handle_cpc_responses(N, Tag, Module)
end.
-
generate(Module, Attributes, FunStrings) ->
FunForms = function_forms(FunStrings),
Forms = [
diff --git a/erts/emulator/test/process_SUITE.erl b/erts/emulator/test/process_SUITE.erl
index e3aae17df4..bf31655066 100644
--- a/erts/emulator/test/process_SUITE.erl
+++ b/erts/emulator/test/process_SUITE.erl
@@ -51,7 +51,13 @@
processes_term_proc_list/1,
otp_7738_waiting/1, otp_7738_suspended/1,
otp_7738_resume/1,
- garb_other_running/1]).
+ garb_other_running/1,
+ no_priority_inversion/1,
+ no_priority_inversion2/1,
+ system_task_blast/1,
+ system_task_on_suspended/1,
+ gc_request_when_gc_disabled/1,
+ gc_request_blast_when_gc_disabled/1]).
-export([prio_server/2, prio_client/2]).
-export([init_per_testcase/2, end_per_testcase/2]).
@@ -73,7 +79,8 @@ all() ->
bad_register, garbage_collect, process_info_messages,
process_flag_badarg, process_flag_heap_size,
spawn_opt_heap_size, otp_6237, {group, processes_bif},
- {group, otp_7738}, garb_other_running].
+ {group, otp_7738}, garb_other_running,
+ {group, system_task}].
groups() ->
[{t_exit_2, [],
@@ -87,7 +94,11 @@ groups() ->
processes_gc_trap, processes_term_proc_list]},
{otp_7738, [],
[otp_7738_waiting, otp_7738_suspended,
- otp_7738_resume]}].
+ otp_7738_resume]},
+ {system_task, [],
+ [no_priority_inversion, no_priority_inversion2,
+ system_task_blast, system_task_on_suspended,
+ gc_request_when_gc_disabled, gc_request_blast_when_gc_disabled]}].
init_per_suite(Config) ->
A0 = case application:start(sasl) of
@@ -2214,6 +2225,208 @@ garb_other_running(Config) when is_list(Config) ->
receive {'DOWN', Mon, process, Pid, normal} -> ok end,
ok.
+no_priority_inversion(Config) when is_list(Config) ->
+ Prio = process_flag(priority, max),
+ HTLs = lists:map(fun (_) ->
+ spawn_opt(fun () ->
+ tok_loop()
+ end,
+ [{priority, high}, monitor, link])
+ end,
+ lists:seq(1, 2*erlang:system_info(schedulers))),
+ receive after 500 -> ok end,
+ LTL = spawn_opt(fun () ->
+ tok_loop()
+ end,
+ [{priority, low}, monitor, link]),
+ false = erlang:check_process_code(element(1, LTL), nonexisting_module),
+ true = erlang:garbage_collect(element(1, LTL)),
+ lists:foreach(fun ({P, _}) ->
+ unlink(P),
+ exit(P, kill)
+ end, [LTL | HTLs]),
+ lists:foreach(fun ({P, M}) ->
+ receive
+ {'DOWN', M, process, P, killed} ->
+ ok
+ end
+ end, [LTL | HTLs]),
+ process_flag(priority, Prio),
+ ok.
+
+no_priority_inversion2(Config) when is_list(Config) ->
+ Prio = process_flag(priority, max),
+ MTLs = lists:map(fun (_) ->
+ spawn_opt(fun () ->
+ tok_loop()
+ end,
+ [{priority, max}, monitor, link])
+ end,
+ lists:seq(1, 2*erlang:system_info(schedulers))),
+ receive after 500 -> ok end,
+ {PL, ML} = spawn_opt(fun () ->
+ tok_loop()
+ end,
+ [{priority, low}, monitor, link]),
+ RL = request_gc(PL, low),
+ RN = request_gc(PL, normal),
+ RH = request_gc(PL, high),
+ receive
+ {garbage_collect, _, _} ->
+ ?t:fail(unexpected_gc)
+ after 1000 ->
+ ok
+ end,
+ RM = request_gc(PL, max),
+ receive
+ {garbage_collect, RM, true} ->
+ ok
+ end,
+ lists:foreach(fun ({P, _}) ->
+ unlink(P),
+ exit(P, kill)
+ end, MTLs),
+ lists:foreach(fun ({P, M}) ->
+ receive
+ {'DOWN', M, process, P, killed} ->
+ ok
+ end
+ end, MTLs),
+ receive
+ {garbage_collect, RH, true} ->
+ ok
+ end,
+ receive
+ {garbage_collect, RN, true} ->
+ ok
+ end,
+ receive
+ {garbage_collect, RL, true} ->
+ ok
+ end,
+ unlink(PL),
+ exit(PL, kill),
+ receive
+ {'DOWN', ML, process, PL, killed} ->
+ ok
+ end,
+ process_flag(priority, Prio),
+ ok.
+
+request_gc(Pid, Prio) ->
+ Ref = make_ref(),
+ erts_internal:request_system_task(Pid, Prio, {garbage_collect, Ref}),
+ Ref.
+
+system_task_blast(Config) when is_list(Config) ->
+ Me = self(),
+ GCReq = fun () ->
+ RL = gc_req(Me, 100),
+ lists:foreach(fun (R) ->
+ receive
+ {garbage_collect, R, true} ->
+ ok
+ end
+ end, RL),
+ exit(it_worked)
+ end,
+ HTLs = lists:map(fun (_) -> spawn_monitor(GCReq) end, lists:seq(1, 1000)),
+ lists:foreach(fun ({P, M}) ->
+ receive
+ {'DOWN', M, process, P, it_worked} ->
+ ok
+ end
+ end, HTLs),
+ ok.
+
+gc_req(_Pid, 0) ->
+ [];
+gc_req(Pid, N) ->
+ R0 = request_gc(Pid, low),
+ R1 = request_gc(Pid, normal),
+ R2 = request_gc(Pid, high),
+ R3 = request_gc(Pid, max),
+ [R0, R1, R2, R3 | gc_req(Pid, N-1)].
+
+system_task_on_suspended(Config) when is_list(Config) ->
+ {P, M} = spawn_monitor(fun () ->
+ tok_loop()
+ end),
+ true = erlang:suspend_process(P),
+ {status, suspended} = process_info(P, status),
+ true = erlang:garbage_collect(P),
+ {status, suspended} = process_info(P, status),
+ true = erlang:resume_process(P),
+ false = ({status, suspended} == process_info(P, status)),
+ exit(P, kill),
+ receive
+ {'DOWN', M, process, P, killed} ->
+ ok
+ end.
+
+gc_request_when_gc_disabled(Config) when is_list(Config) ->
+ Master = self(),
+ AIS = erts_debug:set_internal_state(available_internal_state, true),
+ {P, M} = spawn_opt(fun () ->
+ true = erts_debug:set_internal_state(gc_state,
+ false),
+ Master ! {self(), gc_state, false},
+ receive after 1000 -> ok end,
+ Master ! {self(), gc_state, true},
+ false = erts_debug:set_internal_state(gc_state,
+ true),
+ receive after 100 -> ok end
+ end, [monitor, link]),
+ receive {P, gc_state, false} -> ok end,
+ ReqId = make_ref(),
+ async = garbage_collect(P, [{async, ReqId}]),
+ receive
+ {garbage_collect, ReqId, Result} ->
+ ?t:fail({unexpected_gc, Result});
+ {P, gc_state, true} ->
+ ok
+ end,
+ receive {garbage_collect, ReqId, true} -> ok end,
+ erts_debug:set_internal_state(available_internal_state, AIS),
+ receive {'DOWN', M, process, P, _Reason} -> ok end,
+ ok.
+
+gc_request_blast_when_gc_disabled(Config) when is_list(Config) ->
+ Master = self(),
+ AIS = erts_debug:set_internal_state(available_internal_state, true),
+ {P, M} = spawn_opt(fun () ->
+ true = erts_debug:set_internal_state(gc_state,
+ false),
+ Master ! {self(), gc_state, false},
+ receive after 1000 -> ok end,
+ false = erts_debug:set_internal_state(gc_state,
+ true),
+ receive after 100 -> ok end
+ end, [monitor, link]),
+ receive {P, gc_state, false} -> ok end,
+ PMs = lists:map(fun (N) ->
+ Prio = case N rem 4 of
+ 0 -> max;
+ 1 -> high;
+ 2 -> normal;
+ 3 -> low
+ end,
+ spawn_opt(fun () ->
+ erlang:garbage_collect(P)
+ end, [monitor, link, {priority, Prio}])
+ end, lists:seq(1, 10000)),
+ lists:foreach(fun ({Proc, Mon}) ->
+ receive
+ {'DOWN', Mon, process, Proc, normal} ->
+ ok
+ end
+ end,
+ PMs),
+ erts_debug:set_internal_state(available_internal_state, AIS),
+ receive {'DOWN', M, process, P, _Reason} -> ok end,
+ ok.
+
+
%% Internal functions
wait_until(Fun) ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-16 18:35:07 +0000