diff options
Diffstat (limited to 'lib/kernel')
| -rw-r--r-- | lib/kernel/src/erts_debug.erl | 35 | ||||
| -rw-r--r-- | lib/kernel/src/kernel.app.src | 2 | ||||
| -rw-r--r-- | lib/kernel/test/gen_tcp_misc_SUITE.erl | 44 |
3 files changed, 69 insertions, 12 deletions
diff --git a/lib/kernel/src/erts_debug.erl b/lib/kernel/src/erts_debug.erl index ad92aafc2f..480db6814e 100644 --- a/lib/kernel/src/erts_debug.erl +++ b/lib/kernel/src/erts_debug.erl @@ -33,10 +33,10 @@ -export([breakpoint/2, disassemble/1, display/1, dist_ext_to_term/2, dump_monitors/1, dump_links/1, flat_size/1, - get_internal_state/1, instructions/0, lock_counters/1, + get_internal_state/1, instructions/0, map_info/1, same/2, set_internal_state/2, - size_shared/1, copy_shared/1, dirty_cpu/2, dirty_io/2, - dirty/3]). + size_shared/1, copy_shared/1, dirty_cpu/2, dirty_io/2, dirty/3, + lcnt_control/1, lcnt_control/2, lcnt_collect/0, lcnt_clear/0]). -spec breakpoint(MFA, Flag) -> non_neg_integer() when MFA :: {Module :: module(), @@ -142,12 +142,31 @@ ic(F) when is_function(F) -> io:format("Total: ~w~n",[lists:sum([C||{_I,C}<-Is])]), R. --spec lock_counters(info) -> term(); - (clear) -> ok; - ({copy_save, boolean()}) -> boolean(); - ({process_locks, boolean()}) -> boolean(). +-spec lcnt_control + (copy_save, boolean()) -> ok; + (mask, list(atom())) -> ok. -lock_counters(_) -> +lcnt_control(_Option, _Value) -> + erlang:nif_error(undef). + +-spec lcnt_control + (copy_save) -> boolean(); + (mask) -> list(atom()). + +lcnt_control(_Option) -> + erlang:nif_error(undef). + +-type lcnt_lock_info() :: {atom(), term(), atom(), term()}. + +-spec lcnt_collect() -> + list({duration, {non_neg_integer(), non_neg_integer()}} | + {locks, list(lcnt_lock_info())}). + +lcnt_collect() -> + erlang:nif_error(undef). + +-spec lcnt_clear() -> ok. +lcnt_clear() -> erlang:nif_error(undef). -spec same(Term1, Term2) -> boolean() when diff --git a/lib/kernel/src/kernel.app.src b/lib/kernel/src/kernel.app.src index e150938487..2a11b04310 100644 --- a/lib/kernel/src/kernel.app.src +++ b/lib/kernel/src/kernel.app.src @@ -120,6 +120,6 @@ {applications, []}, {env, [{error_logger, tty}]}, {mod, {kernel, []}}, - {runtime_dependencies, ["erts-9.0", "stdlib-3.0", "sasl-3.0"]} + {runtime_dependencies, ["erts-9.1", "stdlib-3.0", "sasl-3.0"]} ] }. diff --git a/lib/kernel/test/gen_tcp_misc_SUITE.erl b/lib/kernel/test/gen_tcp_misc_SUITE.erl index 929f66d400..331864b5de 100644 --- a/lib/kernel/test/gen_tcp_misc_SUITE.erl +++ b/lib/kernel/test/gen_tcp_misc_SUITE.erl @@ -50,9 +50,8 @@ killing_acceptor/1,killing_multi_acceptors/1,killing_multi_acceptors2/1, several_accepts_in_one_go/1, accept_system_limit/1, active_once_closed/1, send_timeout/1, send_timeout_active/1, - otp_7731/1, zombie_sockets/1, otp_7816/1, otp_8102/1, - wrapping_oct/0, wrapping_oct/1, - otp_9389/1]). + otp_7731/1, zombie_sockets/1, otp_7816/1, otp_8102/1, + wrapping_oct/0, wrapping_oct/1, otp_9389/1, otp_13939/1]). %% Internal exports. -export([sender/3, not_owner/1, passive_sockets_server/2, priority_server/1, @@ -3014,3 +3013,42 @@ ok({ok,V}) -> V. get_hostname(Name) -> "@"++Host = lists:dropwhile(fun(C) -> C =/= $@ end, atom_to_list(Name)), Host. + +otp_13939(doc) -> + ["Check that writing to a remotely closed socket doesn't block forever " + "when exit_on_close is false."]; +otp_13939(suite) -> + []; +otp_13939(Config) when is_list(Config) -> + {Pid, Ref} = spawn_opt( + fun() -> + {ok, Listener} = gen_tcp:listen(0, [{exit_on_close, false}]), + {ok, Port} = inet:port(Listener), + + spawn_link( + fun() -> + {ok, Client} = gen_tcp:connect("localhost", Port, + [{active, false}]), + ok = gen_tcp:close(Client) + end), + + {ok, Accepted} = gen_tcp:accept(Listener), + + ok = gen_tcp:send(Accepted, <<0:(10*1024*1024*8)>>), + + %% The bug surfaces when there's a delay between the send + %% operations; inet:getstat is a red herring. + timer:sleep(100), + + {error, Code} = gen_tcp:send(Accepted, <<0:(10*1024*1024*8)>>), + ct:pal("gen_tcp:send returned ~p~n", [Code]) + end, [link, monitor]), + + receive + {'DOWN', Ref, process, Pid, normal} -> + ok + after 1000 -> + demonitor(Ref, [flush]), + exit(Pid, normal), + ct:fail("Server process blocked on send.") + end. |