From 33a1962290ba6a6116cefe9fabb2e6cef823b33b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?John=20H=C3=B6gberg?= Date: Fri, 23 Jun 2017 13:15:22 +0200 Subject: Break erts_debug:lock_counters/1 into separate BIFs --- lib/kernel/src/erts_debug.erl | 35 +++++++++++++++----- lib/kernel/src/kernel.app.src | 2 +- lib/tools/src/lcnt.erl | 77 +++++++++++++++++++++++++++++++------------ lib/tools/src/tools.app.src | 2 +- 4 files changed, 85 insertions(+), 31 deletions(-) (limited to 'lib') 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 1128ee3ec5..7aefbbd9b6 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/tools/src/lcnt.erl b/lib/tools/src/lcnt.erl index d881fedbd5..139b3d8a4a 100644 --- a/lib/tools/src/lcnt.erl +++ b/lib/tools/src/lcnt.erl @@ -34,8 +34,11 @@ -export([start/0, stop/0]). -%% erts_debug:lock_counters api --export([rt_collect/0, +%% erts_debug:lcnt_xxx api +-export([rt_mask/0, + rt_mask/1, + rt_mask/2, + rt_collect/0, rt_collect/1, rt_clear/0, rt_clear/1, @@ -134,27 +137,61 @@ start_internal() -> %% -------------------------------------------------------------------- %% %% -%% API erts_debug:lock_counters +%% API erts_debug:lcnt_xxx %% %% -------------------------------------------------------------------- %% -rt_collect() -> - erts_debug:lock_counters(info). +rt_mask(Node, Categories) when is_atom(Node), is_list(Categories) -> + rpc:call(Node, lcnt, rt_mask, [Categories]). + +rt_mask(Node) when is_atom(Node) -> + rpc:call(Node, lcnt, rt_mask, []); + +rt_mask(Categories) when is_list(Categories) -> + case erts_debug:lcnt_control(copy_save) of + false -> + erts_debug:lcnt_control(mask, Categories); + true -> + {error, copy_save_enabled} + end. + +rt_mask() -> + erts_debug:lcnt_control(mask). rt_collect(Node) -> - rpc:call(Node, erts_debug, lock_counters, [info]). + rpc:call(Node, lcnt, rt_collect, []). +rt_collect() -> + erts_debug:lcnt_collect(). +rt_clear(Node) -> + rpc:call(Node, lcnt, rt_clear, []). rt_clear() -> - erts_debug:lock_counters(clear). + erts_debug:lcnt_clear(). -rt_clear(Node) -> - rpc:call(Node, erts_debug, lock_counters, [clear]). +rt_opt(Node, Arg) -> + rpc:call(Node, lcnt, rt_opt, [Arg]). -rt_opt({Type, Opt}) -> - erts_debug:lock_counters({Type, Opt}). +%% Compatibility shims for the "process/port_locks" options mentioned in the +%% manual. +rt_opt({process_locks, Enable}) -> + toggle_category(process, Enable); +rt_opt({port_locks, Enable}) -> + toggle_category(io, Enable); -rt_opt(Node, {Type, Opt}) -> - rpc:call(Node, erts_debug, lock_counters, [{Type, Opt}]). +rt_opt({Type, NewVal}) -> + PreviousVal = erts_debug:lcnt_control(Type), + erts_debug:lcnt_control(Type, NewVal), + PreviousVal. + +toggle_category(Category, true) -> + PreviousMask = erts_debug:lcnt_control(mask), + erts_debug:lcnt_control(mask, [Category | PreviousMask]), + lists:member(Category, PreviousMask); + +toggle_category(Category, false) -> + PreviousMask = erts_debug:lcnt_control(mask), + erts_debug:lcnt_control(mask, lists:delete(Category, PreviousMask)), + lists:member(Category, PreviousMask). %% -------------------------------------------------------------------- %% %% @@ -192,13 +229,9 @@ call(Msg) -> gen_server:call(?MODULE, Msg, infinity). %% -------------------------------------------------------------------- %% apply(M,F,As) when is_atom(M), is_atom(F), is_list(As) -> - ok = start_internal(), - Opt = lcnt:rt_opt({copy_save, true}), - lcnt:clear(), - Res = erlang:apply(M,F,As), - lcnt:collect(), - lcnt:rt_opt({copy_save, Opt}), - Res. + apply(fun() -> + erlang:apply(M,F,As) + end). apply(Fun) when is_function(Fun) -> lcnt:apply(Fun, []). @@ -209,7 +242,9 @@ apply(Fun, As) when is_function(Fun) -> lcnt:clear(), Res = erlang:apply(Fun, As), lcnt:collect(), - lcnt:rt_opt({copy_save, Opt}), + %% _ is bound to silence a dialyzer warning; it used to fail silently and + %% we don't want to change the error semantics. + _ = lcnt:rt_opt({copy_save, Opt}), Res. all_conflicts() -> all_conflicts(time). diff --git a/lib/tools/src/tools.app.src b/lib/tools/src/tools.app.src index 12f0cfd2df..8beef49bf9 100644 --- a/lib/tools/src/tools.app.src +++ b/lib/tools/src/tools.app.src @@ -41,6 +41,6 @@ ] }, {runtime_dependencies, ["stdlib-3.1","runtime_tools-1.8.14", - "kernel-3.0","erts-7.0","compiler-5.0"]} + "kernel-5.4","erts-9.1","compiler-5.0"]} ] }. -- cgit v1.2.3