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authorSverker Eriksson <sverker@erlang.org>2012-10-05 18:40:52 +0200
committerSverker Eriksson <sverker@erlang.org>2012-10-05 18:40:52 +0200
commit76b58003d10eeffe5567cc4c15d37885f4788b3e (patch)
treec59e297ebf409e6a9aa7707c6c5655220a60d3e0 /lib
parent952db27ba0a5b87a2a47f3a7034a9bf92e3651e5 (diff)
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stdlib: Tweak ets_SUITE:heir to not exhaust memory
while trying to spawn a process with a specific pid
Diffstat (limited to 'lib')
-rw-r--r--lib/stdlib/test/ets_SUITE.erl54
1 files changed, 29 insertions, 25 deletions
diff --git a/lib/stdlib/test/ets_SUITE.erl b/lib/stdlib/test/ets_SUITE.erl
index 95f10b1df3..f2f93f07ea 100644
--- a/lib/stdlib/test/ets_SUITE.erl
+++ b/lib/stdlib/test/ets_SUITE.erl
@@ -2170,20 +2170,29 @@ heir_do(Opts) ->
?line undefined = ets:info(foo),
%% When heir dies and pid reused before founder dies
- NextPidIx = erts_debug:get_internal_state(next_pid),
- {Founder4,MrefF4} = my_spawn_monitor(fun()->heir_founder(Master,"The dying heir",Opts)end),
- {Heir4,MrefH4} = my_spawn_monitor(fun()->heir_heir(Founder4)end),
- Founder4 ! {go, Heir4},
- ?line {'DOWN', MrefH4, process, Heir4, normal} = receive_any(),
- erts_debug:set_internal_state(next_pid, NextPidIx),
- {Heir4,MrefH4_B} = spawn_monitor_with_pid(Heir4,
- fun()-> ?line die_please = receive_any() end),
- Founder4 ! die_please,
- ?line {'DOWN', MrefF4, process, Founder4, normal} = receive_any(),
- Heir4 ! die_please,
- ?line {'DOWN', MrefH4_B, process, Heir4, normal} = receive_any(),
- ?line undefined = ets:info(foo),
-
+ repeat_while(fun() ->
+ NextPidIx = erts_debug:get_internal_state(next_pid),
+ {Founder4,MrefF4} = my_spawn_monitor(fun()->heir_founder(Master,"The dying heir",Opts)end),
+ {Heir4,MrefH4} = my_spawn_monitor(fun()->heir_heir(Founder4)end),
+ Founder4 ! {go, Heir4},
+ ?line {'DOWN', MrefH4, process, Heir4, normal} = receive_any(),
+ erts_debug:set_internal_state(next_pid, NextPidIx),
+ DoppelGanger = spawn_monitor_with_pid(Heir4,
+ fun()-> ?line die_please = receive_any() end),
+ Founder4 ! die_please,
+ ?line {'DOWN', MrefF4, process, Founder4, normal} = receive_any(),
+ case DoppelGanger of
+ {Heir4,MrefH4_B} ->
+ Heir4 ! die_please,
+ ?line {'DOWN', MrefH4_B, process, Heir4, normal} = receive_any(),
+ ?line undefined = ets:info(foo),
+ false;
+ failed ->
+ io:format("Failed to spawn process with pid ~p\n", [Heir4]),
+ true % try again
+ end
+ end),
+
?line verify_etsmem(EtsMem).
heir_founder(Master, HeirData, Opts) ->
@@ -5795,25 +5804,20 @@ receive_any_spinning(Loops, N, Tries) when N>0 ->
spawn_monitor_with_pid(Pid, Fun) when is_pid(Pid) ->
- spawn_monitor_with_pid(Pid, Fun, 1, 10).
+ spawn_monitor_with_pid(Pid, Fun, 10).
-spawn_monitor_with_pid(Pid, Fun, N, M) when N > M*10 ->
- spawn_monitor_with_pid(Pid, Fun, N, M*10);
-spawn_monitor_with_pid(Pid, Fun, N, M) ->
- ?line false = is_process_alive(Pid),
+spawn_monitor_with_pid(_, _, 0) ->
+ failed;
+spawn_monitor_with_pid(Pid, Fun, N) ->
case my_spawn(fun()-> case self() of
Pid -> Fun();
_ -> die
end
end) of
- Pid ->
+ Pid ->
{Pid, erlang:monitor(process, Pid)};
Other ->
- case N rem M of
- 0 -> io:format("Failed ~p times to get pid ~p (current = ~p)\n",[N,Pid,Other]);
- _ -> ok
- end,
- spawn_monitor_with_pid(Pid,Fun,N+1,M)
+ spawn_monitor_with_pid(Pid,Fun,N-1)
end.