diff options
Diffstat (limited to 'lib/kernel/src')
72 files changed, 9103 insertions, 1275 deletions
diff --git a/lib/kernel/src/Makefile b/lib/kernel/src/Makefile index 5946620f0f..3d1506ea08 100644 --- a/lib/kernel/src/Makefile +++ b/lib/kernel/src/Makefile @@ -1,7 +1,7 @@ # # %CopyrightBegin% # -# Copyright Ericsson AB 1996-2017. All Rights Reserved. +# Copyright Ericsson AB 1996-2018. All Rights Reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. @@ -106,8 +106,23 @@ MODULES = \ inet_sctp \ kernel \ kernel_config \ + kernel_refc \ local_udp \ local_tcp \ + logger \ + logger_backend \ + logger_config \ + logger_handler_watcher \ + logger_std_h \ + logger_disk_log_h \ + logger_h_common \ + logger_filters \ + logger_formatter \ + logger_olp \ + logger_proxy \ + logger_server \ + logger_simple_h \ + logger_sup \ net \ net_adm \ net_kernel \ @@ -120,17 +135,25 @@ MODULES = \ user \ user_drv \ user_sup \ + raw_file_io \ + raw_file_io_compressed \ + raw_file_io_inflate \ + raw_file_io_deflate \ + raw_file_io_delayed \ + raw_file_io_list \ + raw_file_io_raw \ wrap_log_reader HRL_FILES= ../include/file.hrl ../include/inet.hrl ../include/inet_sctp.hrl \ ../include/dist.hrl ../include/dist_util.hrl \ - ../include/net_address.hrl + ../include/net_address.hrl ../include/logger.hrl INTERNAL_HRL_FILES= application_master.hrl disk_log.hrl \ - erl_epmd.hrl hipe_ext_format.hrl \ + erl_epmd.hrl file_int.hrl hipe_ext_format.hrl \ inet_dns.hrl inet_res.hrl \ inet_boot.hrl inet_config.hrl inet_int.hrl \ - inet_dns_record_adts.hrl + inet_dns_record_adts.hrl \ + logger_internal.hrl logger_olp.hrl logger_h_common.hrl ERL_FILES= $(MODULES:%=%.erl) @@ -215,7 +238,7 @@ release_docs_spec: # Include dependencies -- list below added by Kostis Sagonas -$(EBIN)/application_controller.beam: application_master.hrl +$(EBIN)/application_controller.beam: application_master.hrl ../include/logger.hrl $(EBIN)/application_master.beam: application_master.hrl $(EBIN)/auth.beam: ../include/file.hrl $(EBIN)/code.beam: ../include/file.hrl @@ -226,7 +249,9 @@ $(EBIN)/disk_log_server.beam: disk_log.hrl $(EBIN)/dist_util.beam: ../include/dist_util.hrl ../include/dist.hrl $(EBIN)/erl_boot_server.beam: inet_boot.hrl $(EBIN)/erl_epmd.beam: inet_int.hrl erl_epmd.hrl -$(EBIN)/file.beam: ../include/file.hrl +$(EBIN)/error_logger.beam: logger_internal.hrl ../include/logger.hrl +$(EBIN)/file.beam: ../include/file.hrl file_int.hrl +$(EBIN)/file_io_server.beam: ../include/file.hrl file_int.hrl $(EBIN)/gen_tcp.beam: inet_int.hrl $(EBIN)/gen_udp.beam: inet_int.hrl $(EBIN)/gen_sctp.beam: ../include/inet_sctp.hrl @@ -250,7 +275,26 @@ $(EBIN)/inet_udp.beam: inet_int.hrl $(EBIN)/inet_sctp.beam: inet_int.hrl ../include/inet_sctp.hrl $(EBIN)/local_udp.beam: inet_int.hrl $(EBIN)/local_tcp.beam: inet_int.hrl +$(EBIN)/logger.beam: logger_internal.hrl ../include/logger.hrl +$(EBIN)/logger_backend.beam: logger_internal.hrl ../include/logger.hrl +$(EBIN)/logger_config.beam: logger_internal.hrl ../include/logger.hrl +$(EBIN)/logger_disk_log_h.beam: logger_h_common.hrl logger_internal.hrl ../include/logger.hrl ../include/file.hrl +$(EBIN)/logger_filters.beam: logger_internal.hrl ../include/logger.hrl +$(EBIN)/logger_formatter.beam: logger_internal.hrl ../include/logger.hrl +$(EBIN)/logger_olp.beam: logger_olp.hrl logger_internal.hrl +$(EBIN)/logger_proxy.beam: logger_internal.hrl +$(EBIN)/logger_server.beam: logger_internal.hrl ../include/logger.hrl +$(EBIN)/logger_simple_h.beam: logger_internal.hrl ../include/logger.hrl +$(EBIN)/logger_std_h.beam: logger_h_common.hrl logger_internal.hrl ../include/logger.hrl ../include/file.hrl +$(EBIN)/logger_h_common.beam: logger_h_common.hrl logger_internal.hrl ../include/logger.hrl $(EBIN)/net_kernel.beam: ../include/net_address.hrl $(EBIN)/os.beam: ../include/file.hrl $(EBIN)/ram_file.beam: ../include/file.hrl $(EBIN)/wrap_log_reader.beam: disk_log.hrl ../include/file.hrl +$(EBIN)/raw_file_io.beam: ../include/file.hrl file_int.hrl +$(EBIN)/raw_file_io_compressed.beam: ../include/file.hrl file_int.hrl +$(EBIN)/raw_file_io_inflate.beam: ../include/file.hrl file_int.hrl +$(EBIN)/raw_file_io_deflate.beam: ../include/file.hrl file_int.hrl +$(EBIN)/raw_file_io_delayed.beam: ../include/file.hrl file_int.hrl +$(EBIN)/raw_file_io_list.beam: ../include/file.hrl file_int.hrl +$(EBIN)/raw_file_io_raw.beam: ../include/file.hrl file_int.hrl diff --git a/lib/kernel/src/application.erl b/lib/kernel/src/application.erl index bc6be2f8f5..5c2e981e4b 100644 --- a/lib/kernel/src/application.erl +++ b/lib/kernel/src/application.erl @@ -25,7 +25,7 @@ which_applications/0, which_applications/1, loaded_applications/0, permit/2]). -export([ensure_started/1, ensure_started/2]). --export([set_env/3, set_env/4, unset_env/2, unset_env/3]). +-export([set_env/1, set_env/2, set_env/3, set_env/4, unset_env/2, unset_env/3]). -export([get_env/1, get_env/2, get_env/3, get_all_env/0, get_all_env/1]). -export([get_key/1, get_key/2, get_all_key/0, get_all_key/1]). -export([get_application/0, get_application/1, info/0]). @@ -279,6 +279,26 @@ loaded_applications() -> info() -> application_controller:info(). +-spec set_env(Config) -> 'ok' when + Config :: [{Application, Env}], + Application :: atom(), + Env :: [{Par :: atom(), Val :: term()}]. + +set_env(Config) when is_list(Config) -> + set_env(Config, []). + +-spec set_env(Config, Opts) -> 'ok' when + Config :: [{Application, Env}], + Application :: atom(), + Env :: [{Par :: atom(), Val :: term()}], + Opts :: [{timeout, timeout()} | {persistent, boolean()}]. + +set_env(Config, Opts) when is_list(Config), is_list(Opts) -> + case application_controller:set_env(Config, Opts) of + ok -> ok; + {error, Msg} -> erlang:error({badarg, Msg}, [Config, Opts]) + end. + -spec set_env(Application, Par, Val) -> 'ok' when Application :: atom(), Par :: atom(), diff --git a/lib/kernel/src/application_controller.erl b/lib/kernel/src/application_controller.erl index 3b642f5873..9a8091fb2e 100644 --- a/lib/kernel/src/application_controller.erl +++ b/lib/kernel/src/application_controller.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2017. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -26,7 +26,7 @@ control_application/1, change_application_data/2, prep_config_change/0, config_change/1, which_applications/0, which_applications/1, - loaded_applications/0, info/0, + loaded_applications/0, info/0, set_env/2, get_pid_env/2, get_env/2, get_pid_all_env/1, get_all_env/1, get_pid_key/2, get_key/2, get_pid_all_key/1, get_all_key/1, get_master/1, get_application/1, get_application_module/1, @@ -44,6 +44,7 @@ keyfind/3, keydelete/3, keyreplace/4]). -include("application_master.hrl"). +-include("logger.hrl"). -define(AC, ?MODULE). % Name of process @@ -344,9 +345,6 @@ get_all_env(AppName) -> map(fun([Key, Val]) -> {Key, Val} end, ets:match(ac_tab, {{env, AppName, '$1'}, '$2'})). - - - get_pid_key(Master, Key) -> case ets:match(ac_tab, {{application_master, '$1'}, Master}) of [[AppName]] -> get_key(AppName, Key); @@ -460,6 +458,15 @@ permit_application(ApplName, Flag) -> {permit_application, ApplName, Flag}, infinity). +set_env(Config, Opts) -> + case check_conf_data(Config) of + ok -> + Timeout = proplists:get_value(timeout, Opts, 5000), + gen_server:call(?AC, {set_env, Config, Opts}, Timeout); + + {error, _} = Error -> + Error + end. set_env(AppName, Key, Val) -> gen_server:call(?AC, {set_env, AppName, Key, Val, []}). @@ -527,19 +534,17 @@ check_conf_data([]) -> check_conf_data(ConfData) when is_list(ConfData) -> [Application | ConfDataRem] = ConfData, case Application of - {kernel, List} when is_list(List) -> - case check_para_kernel(List) of - ok -> - check_conf_data(ConfDataRem); - Error1 -> - Error1 - end; {AppName, List} when is_atom(AppName), is_list(List) -> - case check_para(List, atom_to_list(AppName)) of - ok -> - check_conf_data(ConfDataRem); - Error2 -> - Error2 + case lists:keymember(AppName, 1, ConfDataRem) of + true -> + ?LOG_WARNING("duplicate application config: " ++ atom_to_list(AppName)); + false -> + ok + end, + + case check_para(List, AppName) of + ok -> check_conf_data(ConfDataRem); + Error -> Error end; {AppName, List} when is_list(List) -> ErrMsg = "application: " @@ -552,36 +557,40 @@ check_conf_data(ConfData) when is_list(ConfData) -> ++ "; parameters must be a list", {error, ErrMsg}; Else -> - ErrMsg = "invalid application name: " ++ - lists:flatten(io_lib:format(" ~tp",[Else])), + ErrMsg = "invalid application config: " + ++ lists:flatten(io_lib:format("~tp",[Else])), {error, ErrMsg} end; check_conf_data(_ConfData) -> - {error, 'configuration must be a list ended by <dot><whitespace>'}. - + {error, "configuration must be a list ended by <dot><whitespace>"}. -%% Special check of distributed parameter for kernel -check_para_kernel([]) -> + +check_para([], _AppName) -> ok; -check_para_kernel([{distributed, Apps} | ParaList]) when is_list(Apps) -> - case check_distributed(Apps) of - {error, _ErrorMsg} = Error -> - Error; - _ -> - check_para_kernel(ParaList) +check_para([{Para, Val} | ParaList], AppName) when is_atom(Para) -> + case lists:keymember(Para, 1, ParaList) of + true -> + ?LOG_WARNING("application: " ++ atom_to_list(AppName) ++ + "; duplicate parameter: " ++ atom_to_list(Para)); + false -> + ok + end, + + case check_para_value(Para, Val, AppName) of + ok -> check_para(ParaList, AppName); + {error, _} = Error -> Error end; -check_para_kernel([{distributed, _Apps} | _ParaList]) -> - {error, "application: kernel; erroneous parameter: distributed"}; -check_para_kernel([{Para, _Val} | ParaList]) when is_atom(Para) -> - check_para_kernel(ParaList); -check_para_kernel([{Para, _Val} | _ParaList]) -> - {error, "application: kernel; invalid parameter: " ++ +check_para([{Para, _Val} | _ParaList], AppName) -> + {error, "application: " ++ atom_to_list(AppName) ++ "; invalid parameter name: " ++ lists:flatten(io_lib:format("~tp",[Para]))}; -check_para_kernel(Else) -> - {error, "application: kernel; invalid parameter list: " ++ +check_para([Else | _ParaList], AppName) -> + {error, "application: " ++ atom_to_list(AppName) ++ "; invalid parameter: " ++ lists:flatten(io_lib:format("~tp",[Else]))}. - +check_para_value(distributed, Apps, kernel) -> check_distributed(Apps); +check_para_value(_Para, _Val, _AppName) -> ok. + +%% Special check of distributed parameter for kernel check_distributed([]) -> ok; check_distributed([{App, List} | Apps]) when is_atom(App), is_list(List) -> @@ -594,18 +603,6 @@ check_distributed(_Else) -> {error, "application: kernel; erroneous parameter: distributed"}. -check_para([], _AppName) -> - ok; -check_para([{Para, _Val} | ParaList], AppName) when is_atom(Para) -> - check_para(ParaList, AppName); -check_para([{Para, _Val} | _ParaList], AppName) -> - {error, "application: " ++ AppName ++ "; invalid parameter: " ++ - lists:flatten(io_lib:format("~tp",[Para]))}; -check_para([Else | _ParaList], AppName) -> - {error, "application: " ++ AppName ++ "; invalid parameter: " ++ - lists:flatten(io_lib:format("~tp",[Else]))}. - - -type calls() :: 'info' | 'prep_config_change' | 'which_applications' | {'config_change' | 'control_application' | 'load_application' | 'start_type' | 'stop_application' | @@ -862,6 +859,16 @@ handle_call(which_applications, _From, S) -> end, S#state.running), {reply, Reply, S}; +handle_call({set_env, Config, Opts}, _From, S) -> + _ = [add_env(AppName, Env) || {AppName, Env} <- Config], + + case proplists:get_value(persistent, Opts, false) of + true -> + {reply, ok, S#state{conf_data = merge_env(S#state.conf_data, Config)}}; + false -> + {reply, ok, S} + end; + handle_call({set_env, AppName, Key, Val, Opts}, _From, S) -> ets:insert(ac_tab, {{env, AppName, Key}, Val}), case proplists:get_value(persistent, Opts, false) of @@ -1271,9 +1278,7 @@ load(S, {ApplData, ApplEnv, IncApps, Descr, Id, Vsn, Apps}) -> NewEnv = merge_app_env(ApplEnv, ConfEnv), CmdLineEnv = get_cmd_env(Name), NewEnv2 = merge_app_env(NewEnv, CmdLineEnv), - NewEnv3 = keyreplaceadd(included_applications, 1, NewEnv2, - {included_applications, IncApps}), - add_env(Name, NewEnv3), + add_env(Name, NewEnv2), Appl = #appl{name = Name, descr = Descr, id = Id, vsn = Vsn, appl_data = ApplData, inc_apps = IncApps, apps = Apps}, ets:insert(ac_tab, {{loaded, Name}, Appl}), @@ -1291,7 +1296,7 @@ load(S, {ApplData, ApplEnv, IncApps, Descr, Id, Vsn, Apps}) -> {ok, NewS}. unload(AppName, S) -> - {ok, IncApps} = get_env(AppName, included_applications), + {ok, IncApps} = get_key(AppName, included_applications), del_env(AppName), ets:delete(ac_tab, {loaded, AppName}), foldl(fun(App, S1) -> @@ -1546,9 +1551,8 @@ do_change_apps(Applications, Config, OldAppls) -> %% Report errors, but do not terminate %% (backwards compatible behaviour) lists:foreach(fun({error, {SysFName, Line, Str}}) -> - Str2 = lists:flatten(io_lib:format("~tp: ~w: ~ts~n", - [SysFName, Line, Str])), - error_logger:format(Str2, []) + ?LOG_ERROR("~tp: ~w: ~ts~n",[SysFName, Line, Str], + #{error_logger=>#{tag=>error}}) end, Errors), @@ -1583,13 +1587,9 @@ do_change_appl({ok, {ApplData, Env, IncApps, Descr, Id, Vsn, Apps}}, CmdLineEnv = get_cmd_env(AppName), NewEnv2 = merge_app_env(NewEnv1, CmdLineEnv), - %% included_apps is made into an env parameter as well - NewEnv3 = keyreplaceadd(included_applications, 1, NewEnv2, - {included_applications, IncApps}), - %% Update ets table with new application env del_env(AppName), - add_env(AppName, NewEnv3), + add_env(AppName, NewEnv2), OldAppl#appl{appl_data=ApplData, descr=Descr, @@ -1631,8 +1631,9 @@ make_term(Str) -> end. handle_make_term_error(Mod, Reason, Str) -> - error_logger:format("application_controller: ~ts: ~ts~n", - [Mod:format_error(Reason), Str]), + ?LOG_ERROR("application_controller: ~ts: ~ts~n", + [Mod:format_error(Reason), Str], + #{error_logger=>#{tag=>error}}), throw({error, {bad_environment_value, Str}}). get_env_i(Name, #state{conf_data = ConfData}) when is_list(ConfData) -> @@ -1819,8 +1820,9 @@ check_conf() -> %% Therefore read and merge contents. if BFName =:= "sys" -> + DName = filename:dirname(FName), {ok, SysEnv, Errors} = - check_conf_sys(NewEnv), + check_conf_sys(NewEnv, [], [], DName), %% Report first error, if any, and %% terminate @@ -1842,20 +1844,31 @@ check_conf() -> end. check_conf_sys(Env) -> - check_conf_sys(Env, [], []). + check_conf_sys(Env, [], [], []). -check_conf_sys([File|T], SysEnv, Errors) when is_list(File) -> +check_conf_sys([File|T], SysEnv, Errors, DName) when is_list(File),is_list(DName) -> BFName = filename:basename(File, ".config"), FName = filename:join(filename:dirname(File), BFName ++ ".config"), - case load_file(FName) of + LName = case filename:pathtype(FName) of + relative when (DName =/= []) -> + % Check if relative to sys.config dir otherwise use legacy mode, + % i.e relative to cwd. + RName = filename:join(DName, FName), + case erl_prim_loader:read_file_info(RName) of + {ok, _} -> RName ; + error -> FName + end; + _ -> FName + end, + case load_file(LName) of {ok, NewEnv} -> - check_conf_sys(T, merge_env(SysEnv, NewEnv), Errors); + check_conf_sys(T, merge_env(SysEnv, NewEnv), Errors, DName); {error, {Line, _Mod, Str}} -> - check_conf_sys(T, SysEnv, [{error, {FName, Line, Str}}|Errors]) + check_conf_sys(T, SysEnv, [{error, {LName, Line, Str}}|Errors], DName) end; -check_conf_sys([Tuple|T], SysEnv, Errors) -> - check_conf_sys(T, merge_env(SysEnv, [Tuple]), Errors); -check_conf_sys([], SysEnv, Errors) -> +check_conf_sys([Tuple|T], SysEnv, Errors, DName) -> + check_conf_sys(T, merge_env(SysEnv, [Tuple]), Errors, DName); +check_conf_sys([], SysEnv, Errors, _) -> {ok, SysEnv, lists:reverse(Errors)}. load_file(File) -> @@ -1913,19 +1926,25 @@ config_error() -> "configuration file must contain ONE list ended by <dot>"}}. %%----------------------------------------------------------------- -%% Info messages sent to error_logger +%% Info messages sent to logger %%----------------------------------------------------------------- info_started(Name, Node) -> - Rep = [{application, Name}, - {started_at, Node}], - error_logger:info_report(progress, Rep). + ?LOG_INFO(#{label=>{application_controller,progress}, + report=>[{application, Name}, + {started_at, Node}]}, + #{domain=>[otp,sasl], + report_cb=>fun logger:format_otp_report/1, + logger_formatter=>#{title=>"PROGRESS REPORT"}, + error_logger=>#{tag=>info_report,type=>progress}}). info_exited(Name, Reason, Type) -> - Rep = [{application, Name}, - {exited, Reason}, - {type, Type}], - error_logger:info_report(Rep). - + ?LOG_NOTICE(#{label=>{application_controller,exit}, + report=>[{application, Name}, + {exited, Reason}, + {type, Type}]}, + #{domain=>[otp], + report_cb=>fun logger:format_otp_report/1, + error_logger=>#{tag=>info_report,type=>std_info}}). %%----------------------------------------------------------------- %% Reply to all processes waiting this application to be started. @@ -2012,5 +2031,5 @@ to_string(Term) -> true -> Term; false -> - lists:flatten(io_lib:format("~134217728p", [Term])) + lists:flatten(io_lib:format("~0p", [Term])) end. diff --git a/lib/kernel/src/application_master.erl b/lib/kernel/src/application_master.erl index 5da2b0b06c..8697143dfb 100644 --- a/lib/kernel/src/application_master.erl +++ b/lib/kernel/src/application_master.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2016. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -118,6 +118,10 @@ init(Parent, Starter, ApplData, Type) -> link(Parent), process_flag(trap_exit, true), OldGleader = group_leader(), + %% We become the group leader, but forward all I/O to OldGleader. + %% This is just a way to identify processes that belong to the + %% application. Used for example to find ourselves from any + %% process, or, reciprocally, to kill them all when we terminate. group_leader(self(), self()), %% Insert ourselves as master for the process. This ensures that %% the processes in the application can use get_env/1 at startup. diff --git a/lib/kernel/src/auth.erl b/lib/kernel/src/auth.erl index 40feee6bf0..4d18daf9e4 100644 --- a/lib/kernel/src/auth.erl +++ b/lib/kernel/src/auth.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2016. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -107,7 +107,7 @@ get_cookie() -> get_cookie(_Node) when node() =:= nonode@nohost -> nocookie; get_cookie(Node) -> - gen_server:call(auth, {get_cookie, Node}). + gen_server:call(auth, {get_cookie, Node}, infinity). -spec set_cookie(Cookie :: cookie()) -> 'true'. @@ -119,12 +119,12 @@ set_cookie(Cookie) -> set_cookie(_Node, _Cookie) when node() =:= nonode@nohost -> erlang:error(distribution_not_started); set_cookie(Node, Cookie) -> - gen_server:call(auth, {set_cookie, Node, Cookie}). + gen_server:call(auth, {set_cookie, Node, Cookie}, infinity). -spec sync_cookie() -> any(). sync_cookie() -> - gen_server:call(auth, sync_cookie). + gen_server:call(auth, sync_cookie, infinity). -spec print(Node :: node(), Format :: string(), Args :: [_]) -> 'ok'. diff --git a/lib/kernel/src/code.erl b/lib/kernel/src/code.erl index 9969021a6c..7faef93609 100644 --- a/lib/kernel/src/code.erl +++ b/lib/kernel/src/code.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2017. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -149,8 +149,11 @@ load_file(Mod) when is_atom(Mod) -> -spec ensure_loaded(Module) -> {module, Module} | {error, What} when Module :: module(), What :: embedded | badfile | nofile | on_load_failure. -ensure_loaded(Mod) when is_atom(Mod) -> - call({ensure_loaded,Mod}). +ensure_loaded(Mod) when is_atom(Mod) -> + case erlang:module_loaded(Mod) of + true -> {module, Mod}; + false -> call({ensure_loaded,Mod}) + end. %% XXX File as an atom is allowed only for backwards compatibility. -spec load_abs(Filename) -> load_ret() when @@ -627,7 +630,7 @@ do_par_recv(N, Good, Bad) -> call(Req) -> code_server:call(Req). --spec start_link() -> {'ok', pid()} | {'error', 'crash'}. +-spec start_link() -> {'ok', pid()}. start_link() -> do_start(). diff --git a/lib/kernel/src/code_server.erl b/lib/kernel/src/code_server.erl index f5a890cb95..68e1205301 100644 --- a/lib/kernel/src/code_server.erl +++ b/lib/kernel/src/code_server.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1998-2016. All Rights Reserved. +%% Copyright Ericsson AB 1998-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -1434,14 +1434,26 @@ all_loaded(Db) -> -spec error_msg(io:format(), [term()]) -> 'ok'. error_msg(Format, Args) -> - Msg = {notify,{error, group_leader(), {self(), Format, Args}}}, - error_logger ! Msg, + %% This is equal to calling logger:error/3 which we don't want to + %% do from code_server. We don't want to call logger:timestamp() + %% either. + logger ! {log,error,Format,Args, + #{pid=>self(), + gl=>group_leader(), + time=>os:system_time(microsecond), + error_logger=>#{tag=>error}}}, ok. -spec info_msg(io:format(), [term()]) -> 'ok'. info_msg(Format, Args) -> - Msg = {notify,{info_msg, group_leader(), {self(), Format, Args}}}, - error_logger ! Msg, + %% This is equal to calling logger:info/3 which we don't want to + %% do from code_server. We don't want to call logger:timestamp() + %% either. + logger ! {log,info,Format,Args, + #{pid=>self(), + gl=>group_leader(), + time=>os:system_time(microsecond), + error_logger=>#{tag=>info_msg}}}, ok. objfile_extension() -> diff --git a/lib/kernel/src/disk_log_1.erl b/lib/kernel/src/disk_log_1.erl index 93856aa7b3..41ef33c613 100644 --- a/lib/kernel/src/disk_log_1.erl +++ b/lib/kernel/src/disk_log_1.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2017. All Rights Reserved. +%% Copyright Ericsson AB 1997-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -630,7 +630,7 @@ is_head(Bin) when is_binary(Bin) -> %% Writes MaxB bytes on each file. %% Creates a file called Name.idx in the Dir. This %% file contains the last written FileName as one byte, and -%% follwing that, the sizes of each file (size 0 number of items). +%% following that, the sizes of each file (size 0 number of items). %% On startup, this file is read, and the next available %% filename is used as first log file. %% Reports can be browsed with Report Browser Tool (rb), or diff --git a/lib/kernel/src/dist_util.erl b/lib/kernel/src/dist_util.erl index b3507e5d13..ecc022b28d 100644 --- a/lib/kernel/src/dist_util.erl +++ b/lib/kernel/src/dist_util.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1999-2017. All Rights Reserved. +%% Copyright Ericsson AB 1999-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -27,8 +27,10 @@ %%-compile(export_all). -export([handshake_we_started/1, handshake_other_started/1, + strict_order_flags/0, start_timer/1, setup_timer/2, reset_timer/1, cancel_timer/1, + is_node_name/1, split_node/1, is_allowed/2, shutdown/3, shutdown/4]). -import(error_logger,[error_msg/2]). @@ -74,22 +76,52 @@ ticked = 0 }). -remove_flag(Flag, Flags) -> - case Flags band Flag of - 0 -> - Flags; - _ -> - Flags - Flag - end. +dflag2str(?DFLAG_PUBLISHED) -> + "PUBLISHED"; +dflag2str(?DFLAG_ATOM_CACHE) -> + "ATOM_CACHE"; +dflag2str(?DFLAG_EXTENDED_REFERENCES) -> + "EXTENDED_REFERENCES"; +dflag2str(?DFLAG_DIST_MONITOR) -> + "DIST_MONITOR"; +dflag2str(?DFLAG_FUN_TAGS) -> + "FUN_TAGS"; +dflag2str(?DFLAG_DIST_MONITOR_NAME) -> + "DIST_MONITOR_NAME"; +dflag2str(?DFLAG_HIDDEN_ATOM_CACHE) -> + "HIDDEN_ATOM_CACHE"; +dflag2str(?DFLAG_NEW_FUN_TAGS) -> + "NEW_FUN_TAGS"; +dflag2str(?DFLAG_EXTENDED_PIDS_PORTS) -> + "EXTENDED_PIDS_PORTS"; +dflag2str(?DFLAG_EXPORT_PTR_TAG) -> + "EXPORT_PTR_TAG"; +dflag2str(?DFLAG_BIT_BINARIES) -> + "BIT_BINARIES"; +dflag2str(?DFLAG_NEW_FLOATS) -> + "NEW_FLOATS"; +dflag2str(?DFLAG_UNICODE_IO) -> + "UNICODE_IO"; +dflag2str(?DFLAG_DIST_HDR_ATOM_CACHE) -> + "DIST_HDR_ATOM_CACHE"; +dflag2str(?DFLAG_SMALL_ATOM_TAGS) -> + "SMALL_ATOM_TAGS"; +dflag2str(?DFLAG_UTF8_ATOMS) -> + "UTF8_ATOMS"; +dflag2str(?DFLAG_MAP_TAG) -> + "MAP_TAG"; +dflag2str(?DFLAG_BIG_CREATION) -> + "BIG_CREATION"; +dflag2str(?DFLAG_SEND_SENDER) -> + "SEND_SENDER"; +dflag2str(?DFLAG_BIG_SEQTRACE_LABELS) -> + "BIG_SEQTRACE_LABELS"; +dflag2str(_) -> + "UNKNOWN". + adjust_flags(ThisFlags, OtherFlags) -> - case (?DFLAG_PUBLISHED band ThisFlags) band OtherFlags of - 0 -> - {remove_flag(?DFLAG_PUBLISHED, ThisFlags), - remove_flag(?DFLAG_PUBLISHED, OtherFlags)}; - _ -> - {ThisFlags, OtherFlags} - end. + ThisFlags band OtherFlags. publish_flag(hidden, _) -> 0; @@ -101,38 +133,56 @@ publish_flag(_, OtherNode) -> 0 end. -make_this_flags(RequestType, OtherNode) -> - publish_flag(RequestType, OtherNode) bor - %% The parenthesis below makes the compiler generate better code. - (?DFLAG_EXPORT_PTR_TAG bor - ?DFLAG_EXTENDED_PIDS_PORTS bor - ?DFLAG_EXTENDED_REFERENCES bor - ?DFLAG_DIST_MONITOR bor - ?DFLAG_FUN_TAGS bor - ?DFLAG_DIST_MONITOR_NAME bor - ?DFLAG_HIDDEN_ATOM_CACHE bor - ?DFLAG_NEW_FUN_TAGS bor - ?DFLAG_BIT_BINARIES bor - ?DFLAG_NEW_FLOATS bor - ?DFLAG_UNICODE_IO bor - ?DFLAG_DIST_HDR_ATOM_CACHE bor - ?DFLAG_SMALL_ATOM_TAGS bor - ?DFLAG_UTF8_ATOMS bor - ?DFLAG_MAP_TAG bor - ?DFLAG_BIG_CREATION). - -handshake_other_started(#hs_data{request_type=ReqType}=HSData0) -> + +%% Sync with dist.c +-record(erts_dflags, { + default, % flags erts prefers + mandatory, % flags erts needs + addable, % flags local dist implementation is allowed to add + rejectable, % flags local dist implementation is allowed to reject + strict_order % flags for features needing strict order delivery +}). + +-spec strict_order_flags() -> integer(). +strict_order_flags() -> + EDF = erts_internal:get_dflags(), + EDF#erts_dflags.strict_order. + +make_this_flags(RequestType, AddFlags, RejectFlags, OtherNode, + #erts_dflags{}=EDF) -> + case RejectFlags band (bnot EDF#erts_dflags.rejectable) of + 0 -> ok; + Rerror -> exit({"Rejecting non rejectable flags", Rerror}) + end, + case AddFlags band (bnot EDF#erts_dflags.addable) of + 0 -> ok; + Aerror -> exit({"Adding non addable flags", Aerror}) + end, + Flgs0 = EDF#erts_dflags.default, + Flgs1 = Flgs0 bor publish_flag(RequestType, OtherNode), + Flgs2 = Flgs1 bor AddFlags, + Flgs2 band (bnot RejectFlags). + +handshake_other_started(#hs_data{request_type=ReqType, + add_flags=AddFlgs0, + reject_flags=RejFlgs0, + require_flags=ReqFlgs0}=HSData0) -> + AddFlgs = convert_flags(AddFlgs0), + RejFlgs = convert_flags(RejFlgs0), + ReqFlgs = convert_flags(ReqFlgs0), {PreOtherFlags,Node,Version} = recv_name(HSData0), - PreThisFlags = make_this_flags(ReqType, Node), - {ThisFlags, OtherFlags} = adjust_flags(PreThisFlags, - PreOtherFlags), - HSData = HSData0#hs_data{this_flags=ThisFlags, - other_flags=OtherFlags, + EDF = erts_internal:get_dflags(), + PreThisFlags = make_this_flags(ReqType, AddFlgs, RejFlgs, Node, EDF), + ChosenFlags = adjust_flags(PreThisFlags, PreOtherFlags), + HSData = HSData0#hs_data{this_flags=ChosenFlags, + other_flags=ChosenFlags, other_version=Version, other_node=Node, - other_started=true}, - check_dflags(HSData), - is_allowed(HSData), + other_started=true, + add_flags=AddFlgs, + reject_flags=RejFlgs, + require_flags=ReqFlgs}, + check_dflags(HSData, EDF), ?debug({"MD5 connection from ~p (V~p)~n", [Node, HSData#hs_data.other_version]}), mark_pending(HSData), @@ -150,38 +200,16 @@ handshake_other_started(OldHsData) when element(1,OldHsData) =:= hs_data -> %% -%% check if connecting node is allowed to connect -%% with allow-node-scheme -%% -is_allowed(#hs_data{other_node = Node, - allowed = Allowed} = HSData) -> - case lists:member(Node, Allowed) of - false when Allowed =/= [] -> - send_status(HSData, not_allowed), - error_msg("** Connection attempt from " - "disallowed node ~w ** ~n", [Node]), - ?shutdown2(Node, {is_allowed, not_allowed}); - _ -> true - end. - -%% -%% Check that both nodes can handle the same types of extended -%% node containers. If they can not, abort the connection. +%% Check mandatory flags... %% check_dflags(#hs_data{other_node = Node, other_flags = OtherFlags, - other_started = OtherStarted} = HSData) -> - - Mandatory = [{?DFLAG_EXTENDED_REFERENCES, "EXTENDED_REFERENCES"}, - {?DFLAG_EXTENDED_PIDS_PORTS, "EXTENDED_PIDS_PORTS"}, - {?DFLAG_UTF8_ATOMS, "UTF8_ATOMS"}], - Missing = lists:filtermap(fun({Bit, Str}) -> - case Bit band OtherFlags of - Bit -> false; - 0 -> {true, Str} - end - end, - Mandatory), + other_started = OtherStarted, + require_flags = RequiredFlags} = HSData, + #erts_dflags{}=EDF) -> + + Mandatory = (EDF#erts_dflags.mandatory bor RequiredFlags), + Missing = check_mandatory(Mandatory, OtherFlags, []), case Missing of [] -> ok; @@ -201,6 +229,21 @@ check_dflags(#hs_data{other_node = Node, ?shutdown2(Node, {check_dflags_failed, Missing}) end. +check_mandatory(0, _OtherFlags, Missing) -> + Missing; +check_mandatory(Mandatory, OtherFlags, Missing) -> + Left = Mandatory band (Mandatory - 1), % clear lowest set bit + DFlag = Mandatory bxor Left, % only lowest set bit + NewMissing = case DFlag band OtherFlags of + 0 -> + %% Mandatory and missing... + [dflag2str(DFlag) | Missing]; + _ -> + %% Mandatory and present... + Missing + end, + check_mandatory(Left, OtherFlags, NewMissing). + %% No nodedown will be sent if we fail before this process has %% succeeded to mark the node as pending. @@ -314,17 +357,27 @@ flush_down() -> end. handshake_we_started(#hs_data{request_type=ReqType, - other_node=Node}=PreHSData) -> - PreThisFlags = make_this_flags(ReqType, Node), - HSData = PreHSData#hs_data{this_flags=PreThisFlags}, + other_node=Node, + add_flags=AddFlgs0, + reject_flags=RejFlgs0, + require_flags=ReqFlgs0}=PreHSData) -> + AddFlgs = convert_flags(AddFlgs0), + RejFlgs = convert_flags(RejFlgs0), + ReqFlgs = convert_flags(ReqFlgs0), + EDF = erts_internal:get_dflags(), + PreThisFlags = make_this_flags(ReqType, AddFlgs, RejFlgs, Node, EDF), + HSData = PreHSData#hs_data{this_flags = PreThisFlags, + add_flags = AddFlgs, + reject_flags = RejFlgs, + require_flags = ReqFlgs}, send_name(HSData), recv_status(HSData), {PreOtherFlags,ChallengeA} = recv_challenge(HSData), - {ThisFlags,OtherFlags} = adjust_flags(PreThisFlags, PreOtherFlags), - NewHSData = HSData#hs_data{this_flags = ThisFlags, - other_flags = OtherFlags, + ChosenFlags = adjust_flags(PreThisFlags, PreOtherFlags), + NewHSData = HSData#hs_data{this_flags = ChosenFlags, + other_flags = ChosenFlags, other_started = false}, - check_dflags(NewHSData), + check_dflags(NewHSData, EDF), MyChallenge = gen_challenge(), {MyCookie,HisCookie} = get_cookies(Node), send_challenge_reply(NewHSData,MyChallenge, @@ -336,15 +389,16 @@ handshake_we_started(#hs_data{request_type=ReqType, handshake_we_started(OldHsData) when element(1,OldHsData) =:= hs_data -> handshake_we_started(convert_old_hsdata(OldHsData)). -convert_old_hsdata({hs_data, KP, ON, TN, S, T, TF, A, OV, OF, OS, FS, FR, - FS_PRE, FS_POST, FG, FA, MFT, MFG, RT}) -> - #hs_data{ - kernel_pid = KP, other_node = ON, this_node = TN, socket = S, timer = T, - this_flags = TF, allowed = A, other_version = OV, other_flags = OF, - other_started = OS, f_send = FS, f_recv = FR, f_setopts_pre_nodeup = FS_PRE, - f_setopts_post_nodeup = FS_POST, f_getll = FG, f_address = FA, - mf_tick = MFT, mf_getstat = MFG, request_type = RT}. +convert_old_hsdata(OldHsData) -> + OHSDL = tuple_to_list(OldHsData), + NoMissing = tuple_size(#hs_data{}) - tuple_size(OldHsData), + true = NoMissing > 0, + list_to_tuple(OHSDL ++ lists:duplicate(NoMissing, undefined)). +convert_flags(Flags) when is_integer(Flags) -> + Flags; +convert_flags(_Undefined) -> + 0. %% -------------------------------------------------------------- %% The connection has been established. @@ -359,15 +413,20 @@ connection(#hs_data{other_node = Node, PType = publish_type(HSData#hs_data.other_flags), case FPreNodeup(Socket) of ok -> - do_setnode(HSData), % Succeeds or exits the process. + DHandle = do_setnode(HSData), % Succeeds or exits the process. Address = FAddress(Socket,Node), mark_nodeup(HSData,Address), case FPostNodeup(Socket) of ok -> + case HSData#hs_data.f_handshake_complete of + undefined -> ok; + HsComplete -> HsComplete(Socket, Node, DHandle) + end, con_loop({HSData#hs_data.kernel_pid, Node, Socket, PType, + DHandle, HSData#hs_data.mf_tick, HSData#hs_data.mf_getstat, HSData#hs_data.mf_setopts, @@ -425,18 +484,16 @@ do_setnode(#hs_data{other_node = Node, socket = Socket, [Node, Port, {publish_type(Flags), '(', Flags, ')', Version}]), - case (catch - erlang:setnode(Node, Port, - {Flags, Version, '', ''})) of - {'EXIT', {system_limit, _}} -> + try + erlang:setnode(Node, Port, {Flags, Version, '', ''}) + catch + error:system_limit -> error_msg("** Distribution system limit reached, " "no table space left for node ~w ** ~n", [Node]), ?shutdown(Node); - {'EXIT', Other} -> - exit(Other); - _Else -> - ok + error:Other:Stacktrace -> + exit({Other, Stacktrace}) end; _ -> error_msg("** Distribution connection error, " @@ -468,7 +525,13 @@ mark_nodeup(#hs_data{kernel_pid = Kernel, ?shutdown(Node) end. -con_loop({Kernel, Node, Socket, Type, MFTick, MFGetstat, MFSetOpts, MFGetOpts}=ConData, +getstat(DHandle, _Socket, undefined) -> + erlang:dist_get_stat(DHandle); +getstat(_DHandle, Socket, MFGetstat) -> + MFGetstat(Socket). + +con_loop({Kernel, Node, Socket, Type, DHandle, MFTick, MFGetstat, + MFSetOpts, MFGetOpts}=ConData, Tick) -> receive {tcp_closed, Socket} -> @@ -476,15 +539,15 @@ con_loop({Kernel, Node, Socket, Type, MFTick, MFGetstat, MFSetOpts, MFGetOpts}=C {Kernel, disconnect} -> ?shutdown2(Node, disconnected); {Kernel, aux_tick} -> - case MFGetstat(Socket) of + case getstat(DHandle, Socket, MFGetstat) of {ok, _, _, PendWrite} -> - send_tick(Socket, PendWrite, MFTick); + send_aux_tick(Type, Socket, PendWrite, MFTick); _ -> ignore_it end, con_loop(ConData, Tick); {Kernel, tick} -> - case send_tick(Socket, Tick, Type, + case send_tick(DHandle, Socket, Tick, Type, MFTick, MFGetstat) of {ok, NewTick} -> con_loop(ConData, NewTick); @@ -497,7 +560,7 @@ con_loop({Kernel, Node, Socket, Type, MFTick, MFGetstat, MFSetOpts, MFGetOpts}=C ?shutdown2(Node, send_net_tick_failed) end; {From, get_status} -> - case MFGetstat(Socket) of + case getstat(DHandle, Socket, MFGetstat) of {ok, Read, Write, _} -> From ! {self(), get_status, {ok, Read, Write}}, con_loop(ConData, Tick); @@ -564,33 +627,130 @@ send_challenge_ack(#hs_data{socket = Socket, f_send = FSend}, %% tcp_drv.c which used it to detect simultaneous connection %% attempts). %% -recv_name(#hs_data{socket = Socket, f_recv = Recv}) -> +recv_name(#hs_data{socket = Socket, f_recv = Recv} = HSData) -> case Recv(Socket, 0, infinity) of - {ok,Data} -> - get_name(Data); + {ok, + [$n,VersionA, VersionB, Flag1, Flag2, Flag3, Flag4 + | OtherNode] = Data} -> + case is_node_name(OtherNode) of + true -> + Flags = ?u32(Flag1, Flag2, Flag3, Flag4), + Version = ?u16(VersionA,VersionB), + is_allowed(HSData, Flags, OtherNode, Version); + false -> + ?shutdown(Data) + end; _ -> ?shutdown(no_node) end. -get_name([$n,VersionA, VersionB, Flag1, Flag2, Flag3, Flag4 | OtherNode] = Data) -> - case is_valid_name(OtherNode) of +is_node_name(OtherNodeName) -> + case string:split(OtherNodeName, "@", all) of + [Name,Host] -> + (not string:is_empty(Name)) + andalso (not string:is_empty(Host)); + _ -> + false + end. + +split_node(Node) -> + Split = string:split(listify(Node), "@", all), + case Split of + [Name,Host] -> + case string:is_empty(Name) of + true -> + Split; + false -> + case string:is_empty(Host) of + true -> + {name,Name}; + false -> + {node,Name,Host} + end + end; + [Host] -> + case string:is_empty(Host) of + true -> + Split; + false -> + {host,Host} + end + end. + +%% Check if connecting node is allowed to connect +%% with allow-node-scheme. An empty allowed list +%% allows all nodes. +%% +is_allowed(#hs_data{allowed = []}, Flags, Node, Version) -> + {Flags,list_to_atom(Node),Version}; +is_allowed(#hs_data{allowed = Allowed} = HSData, Flags, Node, Version) -> + case is_allowed(Node, Allowed) of true -> - {?u32(Flag1, Flag2, Flag3, Flag4), list_to_atom(OtherNode), - ?u16(VersionA,VersionB)}; + {Flags,list_to_atom(Node),Version}; false -> - ?shutdown(Data) - end; -get_name(Data) -> - ?shutdown(Data). - -is_valid_name(OtherNodeName) -> - case string:lexemes(OtherNodeName,"@") of - [_OtherNodeName,_OtherNodeHost] -> - true; - _else -> - false + send_status(HSData#hs_data{other_node = Node}, not_allowed), + error_msg("** Connection attempt from " + "disallowed node ~s ** ~n", [Node]), + ?shutdown2(Node, {is_allowed, not_allowed}) + end. + +%% The allowed list can contain node names, host names +%% or names before '@', in atom or list form: +%% [[email protected], "host.example.org", "node@"]. +%% An empty allowed list allows no nodes. +%% +%% Allow a node that matches any entry in the allowed list. +%% Also allow allowed entries as node to match, not from +%% this module; here the node has to be a valid name. +%% +is_allowed(_Node, []) -> + false; +is_allowed(Node, [Node|_Allowed]) -> + %% Just an optimization + true; +is_allowed(Node, [AllowedNode|Allowed]) -> + case split_node(AllowedNode) of + {node,AllowedName,AllowedHost} -> + %% Allowed node name + case split_node(Node) of + {node,AllowedName,AllowedHost} -> + true; + _ -> + is_allowed(Node, Allowed) + end; + {host,AllowedHost} -> + %% Allowed host name + case split_node(Node) of + {node,_,AllowedHost} -> + %% Matching Host part + true; + {host,AllowedHost} -> + %% Host matches Host + true; + _ -> + is_allowed(Node, Allowed) + end; + {name,AllowedName} -> + %% Allowed name before '@' + case split_node(Node) of + {node,AllowedName,_} -> + %% Matching Name part + true; + {name,AllowedName} -> + %% Name matches Name + true; + _ -> + is_allowed(Node, Allowed) + end; + _ -> + is_allowed(Node, Allowed) end. +listify(Atom) when is_atom(Atom) -> + atom_to_list(Atom); +listify(Node) when is_list(Node) -> + Node. + publish_type(Flags) -> case Flags band ?DFLAG_PUBLISHED of 0 -> @@ -731,51 +891,57 @@ send_status(#hs_data{socket = Socket, other_node = Node, %% The detection time interval is thus, by default, 45s < DT < 75s -%% A HIDDEN node is always (if not a pending write) ticked if -%% we haven't read anything as a hidden node only ticks when it receives -%% a TICK !! +%% A HIDDEN node is always ticked if we haven't read anything +%% as a (primitive) hidden node only ticks when it receives a TICK !! -send_tick(Socket, Tick, Type, MFTick, MFGetstat) -> +send_tick(DHandle, Socket, Tick, Type, MFTick, MFGetstat) -> #tick{tick = T0, read = Read, write = Write, - ticked = Ticked} = Tick, + ticked = Ticked0} = Tick, T = T0 + 1, T1 = T rem 4, - case MFGetstat(Socket) of - {ok, Read, _, _} when Ticked =:= T -> + case getstat(DHandle, Socket, MFGetstat) of + {ok, Read, _, _} when Ticked0 =:= T -> {error, not_responding}; - {ok, Read, W, Pend} when Type =:= hidden -> - send_tick(Socket, Pend, MFTick), - {ok, Tick#tick{write = W + 1, - tick = T1}}; - {ok, Read, Write, Pend} -> - send_tick(Socket, Pend, MFTick), - {ok, Tick#tick{write = Write + 1, - tick = T1}}; - {ok, R, Write, Pend} -> - send_tick(Socket, Pend, MFTick), - {ok, Tick#tick{write = Write + 1, - read = R, - tick = T1, - ticked = T}}; - {ok, Read, W, _} -> - {ok, Tick#tick{write = W, - tick = T1}}; - {ok, R, W, _} -> - {ok, Tick#tick{write = W, - read = R, - tick = T1, - ticked = T}}; + + {ok, R, W1, Pend} -> + RDiff = R - Read, + W2 = case need_to_tick(Type, RDiff, W1-Write, Pend) of + true -> + MFTick(Socket), + W1 + 1; + false -> + W1 + end, + + Ticked1 = case RDiff of + 0 -> Ticked0; + _ -> T + end, + + {ok, Tick#tick{write = W2, + tick = T1, + read = R, + ticked = Ticked1}}; + Error -> Error end. -send_tick(Socket, 0, MFTick) -> - MFTick(Socket); -send_tick(_, _Pend, _) -> - %% Dont send tick if pending write. - ok. +need_to_tick(_, _, 0, 0) -> % nothing written and empty send queue + true; +need_to_tick(_, _, 0, false) -> % nothing written and empty send queue + true; +need_to_tick(hidden, 0, _, _) -> % nothing read from hidden + true; +need_to_tick(_, _, _, _) -> + false. + +send_aux_tick(normal, _, Pend, _) when Pend /= false, Pend /= 0 -> + ok; %% Dont send tick if pending write. +send_aux_tick(_Type, Socket, _Pend, MFTick) -> + MFTick(Socket). %% ------------------------------------------------------------ %% Connection setup timeout timer. diff --git a/lib/kernel/src/erl_boot_server.erl b/lib/kernel/src/erl_boot_server.erl index 2578b74428..4ac945ce01 100644 --- a/lib/kernel/src/erl_boot_server.erl +++ b/lib/kernel/src/erl_boot_server.erl @@ -252,9 +252,9 @@ handle_info({udp, U, IP, Port, Data}, S0) -> "~w is not a valid address ** ~n", [IP]), {noreply,S0}; {true,_,_} -> - case catch string:substr(Data, 1, length(?EBOOT_REQUEST)) of + case catch string:slice(Data, 0, length(?EBOOT_REQUEST)) of ?EBOOT_REQUEST -> - Vsn = string:substr(Data, length(?EBOOT_REQUEST)+1, length(Data)), + Vsn = string:slice(Data, length(?EBOOT_REQUEST), length(Data)), error_logger:error_msg("** Illegal boot server connection attempt: " "client version is ~s ** ~n", [Vsn]); _ -> diff --git a/lib/kernel/src/erl_epmd.erl b/lib/kernel/src/erl_epmd.erl index 7bc9e2ede3..7a14e2635c 100644 --- a/lib/kernel/src/erl_epmd.erl +++ b/lib/kernel/src/erl_epmd.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1998-2016. All Rights Reserved. +%% Copyright Ericsson AB 1998-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -29,10 +29,20 @@ -define(port_please_failure2(Term), noop). -endif. +-ifndef(erlang_daemon_port). +-define(erlang_daemon_port, 4369). +-endif. +-ifndef(epmd_dist_high). +-define(epmd_dist_high, 4370). +-endif. +-ifndef(epmd_dist_low). +-define(epmd_dist_low, 4370). +-endif. + %% External exports -export([start/0, start_link/0, stop/0, port_please/2, port_please/3, names/0, names/1, - register_node/2, register_node/3, open/0, open/1, open/2]). + register_node/2, register_node/3, address_please/3, open/0, open/1, open/2]). %% gen_server callbacks -export([init/1, handle_call/3, handle_cast/2, handle_info/2, @@ -53,7 +63,7 @@ start() -> gen_server:start({local, erl_epmd}, ?MODULE, [], []). - +-spec start_link() -> {ok, pid()} | ignore | {error,term()}. start_link() -> gen_server:start_link({local, erl_epmd}, ?MODULE, [], []). @@ -66,9 +76,22 @@ stop() -> %% return {port, P, Version} | noport %% +-spec port_please(Name, Host) -> {ok, Port, Version} | noport when + Name :: atom() | string(), + Host :: atom() | string() | inet:ip_address(), + Port :: non_neg_integer(), + Version :: non_neg_integer(). + port_please(Node, Host) -> port_please(Node, Host, infinity). +-spec port_please(Name, Host, Timeout) -> {ok, Port, Version} | noport when + Name :: atom() | string(), + Host :: atom() | string() | inet:ip_address(), + Timeout :: non_neg_integer() | infinity, + Port :: non_neg_integer(), + Version :: non_neg_integer(). + port_please(Node,HostName, Timeout) when is_atom(HostName) -> port_please1(Node,atom_to_list(HostName), Timeout); port_please(Node,HostName, Timeout) when is_list(HostName) -> @@ -79,17 +102,34 @@ port_please(Node, EpmdAddr, Timeout) -> port_please1(Node,HostName, Timeout) -> - case inet:gethostbyname(HostName, inet, Timeout) of + Family = case inet_db:res_option(inet6) of + true -> + inet6; + false -> + inet + end, + case inet:gethostbyname(HostName, Family, Timeout) of {ok,{hostent, _Name, _ , _Af, _Size, [EpmdAddr | _]}} -> get_port(Node, EpmdAddr, Timeout); Else -> Else end. +-spec names() -> {ok, [{Name, Port}]} | {error, Reason} when + Name :: string(), + Port :: non_neg_integer(), + Reason :: address | file:posix(). + names() -> {ok, H} = inet:gethostname(), names(H). +-spec names(Host) -> {ok, [{Name, Port}]} | {error, Reason} when + Host :: atom() | string() | inet:ip_address(), + Name :: string(), + Port :: non_neg_integer(), + Reason :: address | file:posix(). + names(HostName) when is_atom(HostName); is_list(HostName) -> case inet:gethostbyname(HostName) of {ok,{hostent, _Name, _ , _Af, _Size, [EpmdAddr | _]}} -> @@ -100,9 +140,22 @@ names(HostName) when is_atom(HostName); is_list(HostName) -> names(EpmdAddr) -> get_names(EpmdAddr). +-spec register_node(Name, Port) -> Result when + Name :: string(), + Port :: non_neg_integer(), + Creation :: non_neg_integer(), + Result :: {ok, Creation} | {error, already_registered} | term(). register_node(Name, PortNo) -> - register_node(Name, PortNo, inet). + register_node(Name, PortNo, inet). + +-spec register_node(Name, Port, Driver) -> Result when + Name :: string(), + Port :: non_neg_integer(), + Driver :: inet_tcp | inet6_tcp | inet | inet6, + Creation :: non_neg_integer(), + Result :: {ok, Creation} | {error, already_registered} | term(). + register_node(Name, PortNo, inet_tcp) -> register_node(Name, PortNo, inet); register_node(Name, PortNo, inet6_tcp) -> @@ -110,6 +163,17 @@ register_node(Name, PortNo, inet6_tcp) -> register_node(Name, PortNo, Family) -> gen_server:call(erl_epmd, {register, Name, PortNo, Family}, infinity). +-spec address_please(Name, Host, AddressFamily) -> Success | {error, term()} when + Name :: string(), + Host :: string() | inet:ip_address(), + AddressFamily :: inet | inet6, + Port :: non_neg_integer(), + Version :: non_neg_integer(), + Success :: {ok, inet:ip_address()} | {ok, inet:ip_address(), Port, Version}. + +address_please(_Name, Host, AddressFamily) -> + inet:getaddr(Host, AddressFamily). + %%%---------------------------------------------------------------------- %%% Callback functions from gen_server %%%---------------------------------------------------------------------- diff --git a/lib/kernel/src/erl_reply.erl b/lib/kernel/src/erl_reply.erl index e1e046cbb4..e1c4ffe839 100644 --- a/lib/kernel/src/erl_reply.erl +++ b/lib/kernel/src/erl_reply.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2016. All Rights Reserved. +%% Copyright Ericsson AB 1997-2017. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -42,7 +42,7 @@ reply(_) -> %% convert ip number to tuple ip_string_to_tuple(Ip) -> - [Ip1,Ip2,Ip3,Ip4] = string:tokens(Ip,"."), + [Ip1,Ip2,Ip3,Ip4] = string:lexemes(Ip,"."), {list_to_integer(Ip1), list_to_integer(Ip2), list_to_integer(Ip3), diff --git a/lib/kernel/src/erl_signal_handler.erl b/lib/kernel/src/erl_signal_handler.erl index 22f235d4e4..5be905d8ae 100644 --- a/lib/kernel/src/erl_signal_handler.erl +++ b/lib/kernel/src/erl_signal_handler.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2017. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -19,12 +19,21 @@ -module(erl_signal_handler). -behaviour(gen_event). --export([init/1, format_status/2, +-export([start/0, init/1, format_status/2, handle_event/2, handle_call/2, handle_info/2, terminate/2, code_change/3]). -record(state,{}). +start() -> + %% add signal handler + case whereis(erl_signal_server) of + %% in case of minimal mode + undefined -> ok; + _ -> + gen_event:add_handler(erl_signal_server, erl_signal_handler, []) + end. + init(_Args) -> {ok, #state{}}. diff --git a/lib/kernel/src/error_handler.erl b/lib/kernel/src/error_handler.erl index 59ca8e690d..a89ef83261 100644 --- a/lib/kernel/src/error_handler.erl +++ b/lib/kernel/src/error_handler.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2016. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -106,8 +106,8 @@ crash(M, F, A) -> crash(Tuple) -> try erlang:error(undef) catch - error:undef -> - Stk = [Tuple|tl(erlang:get_stacktrace())], + error:undef:Stacktrace -> + Stk = [Tuple|tl(Stacktrace)], erlang:raise(error, undef, Stk) end. diff --git a/lib/kernel/src/error_logger.erl b/lib/kernel/src/error_logger.erl index 585507c545..e324be5290 100644 --- a/lib/kernel/src/error_logger.erl +++ b/lib/kernel/src/error_logger.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2017. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -19,22 +19,23 @@ %% -module(error_logger). --export([start/0,start_link/0,format/2,error_msg/1,error_msg/2,error_report/1, +-include("logger_internal.hrl"). + +-export([start/0,start_link/0,stop/0, + format/2,error_msg/1,error_msg/2,error_report/1, error_report/2,info_report/1,info_report/2,warning_report/1, warning_report/2,error_info/1, info_msg/1,info_msg/2,warning_msg/1,warning_msg/2, - logfile/1,tty/1,swap_handler/1, + logfile/1,tty/1, add_report_handler/1,add_report_handler/2, - delete_report_handler/1]). + delete_report_handler/1, + which_report_handlers/0]). --export([init/1, - handle_event/2, handle_call/2, handle_info/2, - terminate/2]). +%% logger callbacks +-export([adding_handler/1, removing_handler/1, log/2]). -export([get_format_depth/0, limit_term/1]). --define(buffer_size, 10). - %%----------------------------------------------------------------- %% Types used in this file %%----------------------------------------------------------------- @@ -43,8 +44,6 @@ | 'info' | 'info_msg' | 'info_report' | 'warning_msg' | 'warning_report'. --type state() :: {non_neg_integer(), non_neg_integer(), [term()]}. - %%% BIF -export([warning_map/0]). @@ -59,26 +58,164 @@ warning_map() -> %%----------------------------------------------------------------- --spec start() -> {'ok', pid()} | {'error', any()}. +%%%----------------------------------------------------------------- +%%% Start the event manager process under logger_sup, which is part of +%%% the kernel application's supervision tree. +-spec start() -> 'ok' | {'error', any()}. start() -> - case gen_event:start({local, error_logger}) of - {ok, Pid} -> - simple_logger(?buffer_size), - {ok, Pid}; - Error -> Error + case whereis(?MODULE) of + undefined -> + ErrorLogger = + #{id => ?MODULE, + start => {?MODULE, start_link, []}, + restart => transient, + shutdown => 2000, + type => worker, + modules => dynamic}, + case supervisor:start_child(logger_sup, ErrorLogger) of + {ok,Pid} -> + ok = logger_handler_watcher:register_handler(?MODULE,Pid); + Error -> + Error + end; + _ -> + ok end. +%%%----------------------------------------------------------------- +%%% Start callback specified in child specification to supervisor, see start/0 -spec start_link() -> {'ok', pid()} | {'error', any()}. start_link() -> - case gen_event:start_link({local, error_logger}) of - {ok, Pid} -> - simple_logger(?buffer_size), - {ok, Pid}; - Error -> Error + gen_event:start_link({local, ?MODULE}, + [{spawn_opt,[{message_queue_data, off_heap}]}]). + +%%%----------------------------------------------------------------- +%%% Stop the event manager +-spec stop() -> ok. +stop() -> + case whereis(?MODULE) of + undefined -> + ok; + _Pid -> + _ = gen_event:stop(?MODULE,{shutdown,stopped},infinity), + _ = supervisor:delete_child(logger_sup,?MODULE), + ok + end. + +%%%----------------------------------------------------------------- +%%% Callbacks for logger +-spec adding_handler(logger:handler_config()) -> + {ok,logger:handler_config()} | {error,term()}. +adding_handler(#{id:=?MODULE}=Config) -> + case start() of + ok -> + {ok,Config}; + Error -> + Error end. +-spec removing_handler(logger:handler_config()) -> ok. +removing_handler(#{id:=?MODULE}) -> + stop(), + ok. + +-spec log(logger:log_event(),logger:handler_config()) -> ok. +log(#{level:=Level,msg:=Msg,meta:=Meta},_Config) -> + do_log(Level,Msg,Meta). + +do_log(Level,{report,Msg},#{?MODULE:=#{tag:=Tag,type:=Type}}=Meta) -> + %% From error_logger:*_report/1,2, or logger call which added + %% error_logger data to obtain backwards compatibility with + %% error_logger:*_report/1,2 + Report = + case Msg of + #{label:=_,report:=R} -> R; + _ -> Msg + end, + notify(Level,Tag,Type,Report,Meta); +do_log(Level,{report,Msg},#{?MODULE:=#{tag:=Tag}}=Meta) -> + {Format,Args} = + case Msg of + #{label:=_,format:=F,args:=A} -> + %% From error_logger:*_msg/1,2. + %% In order to be backwards compatible with handling + %% of faulty parameters to error_logger:*_msg/1,2, + %% don't use report_cb here. + {F,A}; + _ -> + %% From logger call which added error_logger data to + %% obtain backwards compatibility with error_logger:*_msg/1,2 + case maps:get(report_cb,Meta,fun logger:format_report/1) of + RCBFun when is_function(RCBFun,1) -> + try RCBFun(Msg) of + {F,A} when is_list(F), is_list(A) -> + {F,A}; + Other -> + {"REPORT_CB ERROR: ~tp; Returned: ~tp",[Msg,Other]} + catch C:R -> + {"REPORT_CB CRASH: ~tp; Reason: ~tp",[Msg,{C,R}]} + end; + RCBFun when is_function(RCBFun,2) -> + try RCBFun(Msg,#{depth=>get_format_depth(), + chars_limit=>unlimited, + single_line=>false}) of + Chardata when ?IS_STRING(Chardata) -> + {"~ts",[Chardata]}; + Other -> + {"REPORT_CB ERROR: ~tp; Returned: ~tp",[Msg,Other]} + catch C:R -> + {"REPORT_CB CRASH: ~tp; Reason: ~tp",[Msg,{C,R}]} + end + end + end, + notify(Level,Tag,Format,Args,Meta); +do_log(Level,{Format,Args},#{?MODULE:=#{tag:=Tag}}=Meta) + when is_list(Format), is_list(Args) -> + %% From logger call which added error_logger data to obtain + %% backwards compatibility with error_logger:*_msg/1,2 + notify(Level,Tag,Format,Args,Meta); +do_log(_Level,_Msg,_Meta) -> + %% Ignore the rest - i.e. to get backwards compatibility with + %% error_logger, you must use the error_logger API for logging. + %% Some modules within OTP go around this by adding an + %% error_logger field to its metadata. This is done only to allow + %% complete backwards compatibility for log events originating + %% from within OTP, while still using the new logger interface. + ok. + +-spec notify(logger:level(), msg_tag(), any(), any(), map()) -> 'ok'. +notify(Level,Tag0,FormatOrType0,ArgsOrReport,#{pid:=Pid0,gl:=GL,?MODULE:=My}) -> + {Tag,FormatOrType} = maybe_map_warnings(Level,Tag0,FormatOrType0), + Pid = case maps:get(emulator,My,false) of + true -> emulator; + _ -> Pid0 + end, + gen_event:notify(?MODULE,{Tag,GL,{Pid,FormatOrType,ArgsOrReport}}). + +%% For backwards compatibility with really old even handlers, check +%% the warning map and update tag and type. +maybe_map_warnings(warning,Tag,FormatOrType) -> + case error_logger:warning_map() of + warning -> + {Tag,FormatOrType}; + Level -> + {fix_warning_tag(Level,Tag),fix_warning_type(Level,FormatOrType)} + end; +maybe_map_warnings(_,Tag,FormatOrType) -> + {Tag,FormatOrType}. + +fix_warning_tag(error,warning_msg) -> error; +fix_warning_tag(error,warning_report) -> error_report; +fix_warning_tag(info,warning_msg) -> info_msg; +fix_warning_tag(info,warning_report) -> info_report; +fix_warning_tag(_,Tag) -> Tag. + +fix_warning_type(error,std_warning) -> std_error; +fix_warning_type(info,std_warning) -> std_info; +fix_warning_type(_,Type) -> Type. + %%----------------------------------------------------------------- %% These two simple old functions generate events tagged 'error' %% Used for simple messages; error or information. @@ -95,14 +232,18 @@ error_msg(Format) -> Data :: list(). error_msg(Format, Args) -> - notify({error, group_leader(), {self(), Format, Args}}). + logger:log(error, + #{label=>{?MODULE,error_msg}, + format=>Format, + args=>Args}, + meta(error)). -spec format(Format, Data) -> 'ok' when Format :: string(), Data :: list(). format(Format, Args) -> - notify({error, group_leader(), {self(), Format, Args}}). + error_msg(Format, Args). %%----------------------------------------------------------------- %% This functions should be used for error reports. Events @@ -124,7 +265,10 @@ error_report(Report) -> Report :: report(). error_report(Type, Report) -> - notify({error_report, group_leader(), {self(), Type, Report}}). + logger:log(error, + #{label=>{?MODULE,error_report}, + report=>Report}, + meta(error_report,Type)). %%----------------------------------------------------------------- %% This function should be used for warning reports. @@ -146,25 +290,10 @@ warning_report(Report) -> Report :: report(). warning_report(Type, Report) -> - {Tag, NType} = case error_logger:warning_map() of - info -> - if - Type =:= std_warning -> - {info_report, std_info}; - true -> - {info_report, Type} - end; - warning -> - {warning_report, Type}; - error -> - if - Type =:= std_warning -> - {error_report, std_error}; - true -> - {error_report, Type} - end - end, - notify({Tag, group_leader(), {self(), NType, Report}}). + logger:log(warning, + #{label=>{?MODULE,warning_report}, + report=>Report}, + meta(warning_report,Type)). %%----------------------------------------------------------------- %% This function provides similar functions as error_msg for @@ -183,15 +312,11 @@ warning_msg(Format) -> Data :: list(). warning_msg(Format, Args) -> - Tag = case error_logger:warning_map() of - warning -> - warning_msg; - info -> - info_msg; - error -> - error - end, - notify({Tag, group_leader(), {self(), Format, Args}}). + logger:log(warning, + #{label=>{?MODULE,warning_msg}, + format=>Format, + args=>Args}, + meta(warning_msg)). %%----------------------------------------------------------------- %% This function should be used for information reports. Events @@ -210,7 +335,10 @@ info_report(Report) -> Report :: report(). info_report(Type, Report) -> - notify({info_report, group_leader(), {self(), Type, Report}}). + logger:log(notice, + #{label=>{?MODULE,info_report}, + report=>Report}, + meta(info_report,Type)). %%----------------------------------------------------------------- %% This function provides similar functions as error_msg for @@ -228,7 +356,11 @@ info_msg(Format) -> Data :: list(). info_msg(Format, Args) -> - notify({info_msg, group_leader(), {self(), Format, Args}}). + logger:log(notice, + #{label=>{?MODULE,info_msg}, + format=>Format, + args=>Args}, + meta(info_msg)). %%----------------------------------------------------------------- %% Used by the init process. Events are tagged 'info'. @@ -236,38 +368,75 @@ info_msg(Format, Args) -> -spec error_info(Error :: any()) -> 'ok'. +%% unused? error_info(Error) -> - notify({info, group_leader(), {self(), Error, []}}). - --spec notify({msg_tag(), pid(), {pid(), any(), any()}}) -> 'ok'. - -notify(Msg) -> - gen_event:notify(error_logger, Msg). - --type swap_handler_type() :: 'false' | 'silent' | 'tty' | {'logfile', string()}. --spec swap_handler(Type :: swap_handler_type()) -> any(). - -swap_handler(tty) -> - R = gen_event:swap_handler(error_logger, {error_logger, swap}, - {error_logger_tty_h, []}), - ok = simple_logger(), - R; -swap_handler({logfile, File}) -> - R = gen_event:swap_handler(error_logger, {error_logger, swap}, - {error_logger_file_h, File}), - ok = simple_logger(), - R; -swap_handler(silent) -> - _ = gen_event:delete_handler(error_logger, error_logger, delete), - ok = simple_logger(); -swap_handler(false) -> - ok. % keep primitive event handler as-is + {Format,Args} = + case string_p(Error) of + true -> {Error,[]}; + false -> {"~p",[Error]} + end, + MyMeta = #{tag=>info,type=>Error}, + logger:log(notice, Format, Args, #{?MODULE=>MyMeta,domain=>[Error]}). + +%%----------------------------------------------------------------- +%% Create metadata +meta(Tag) -> + meta(Tag,undefined). +meta(Tag,Type) -> + meta(Tag,Type,#{report_cb=>fun report_to_format/1}). +meta(Tag,undefined,Meta0) -> + Meta0#{?MODULE=>#{tag=>Tag}}; +meta(Tag,Type,Meta0) -> + maybe_add_domain(Tag,Type,Meta0#{?MODULE=>#{tag=>Tag,type=>Type}}). + +%% This is to prevent events of non standard type from being printed +%% with the standard logger. Similar to how error_logger_tty_h +%% discards events of non standard type. +maybe_add_domain(error_report,std_error,Meta) -> Meta; +maybe_add_domain(info_report,std_info,Meta) -> Meta; +maybe_add_domain(warning_report,std_warning,Meta) -> Meta; +maybe_add_domain(_,Type,Meta) -> Meta#{domain=>[Type]}. + +%% ----------------------------------------------------------------- +%% Report formatting - i.e. Term => {Format,Args} +%% This was earlier done in the event handler (error_logger_tty_h, etc) +%% ----------------------------------------------------------------- +report_to_format(#{label:={?MODULE,_}, + report:=Report}) when is_map(Report) -> + %% logger:format_otp_report does maps:to_list, and for backwards + %% compatibility reasons we don't want that. + {"~tp\n",[Report]}; +report_to_format(#{label:={?MODULE,_}, + format:=Format, + args:=Args}) -> + %% This is not efficient, but needed for backwards compatibility + %% in giving faulty arguments to the *_msg functions. + try io_lib:scan_format(Format,Args) of + _ -> {Format,Args} + catch _:_ -> + {"ERROR: ~tp - ~tp",[Format,Args]} + end; +report_to_format(Term) -> + logger:format_otp_report(Term). + +string_p(List) when is_list(List) -> + string_p1(lists:flatten(List)); +string_p(_) -> + false. +string_p1([]) -> + false; +string_p1(FlatList) -> + io_lib:printable_list(FlatList). + +%% ----------------------------------------------------------------- +%% Stuff directly related to the event manager +%% ----------------------------------------------------------------- -spec add_report_handler(Handler) -> any() when Handler :: module(). add_report_handler(Module) when is_atom(Module) -> - gen_event:add_handler(error_logger, Module, []). + add_report_handler(Module, []). -spec add_report_handler(Handler, Args) -> Result when Handler :: module(), @@ -275,24 +444,37 @@ add_report_handler(Module) when is_atom(Module) -> Result :: gen_event:add_handler_ret(). add_report_handler(Module, Args) when is_atom(Module) -> - gen_event:add_handler(error_logger, Module, Args). + _ = logger:add_handler(?MODULE,?MODULE,#{level=>info,filter_default=>log}), + gen_event:add_handler(?MODULE, Module, Args). -spec delete_report_handler(Handler) -> Result when Handler :: module(), Result :: gen_event:del_handler_ret(). delete_report_handler(Module) when is_atom(Module) -> - gen_event:delete_handler(error_logger, Module, []). - -%% Start the lowest level error_logger handler with Buffer. - -simple_logger(Buffer_size) when is_integer(Buffer_size) -> - gen_event:add_handler(error_logger, error_logger, Buffer_size). - -%% Start the lowest level error_logger handler without Buffer. + case whereis(?MODULE) of + Pid when is_pid(Pid) -> + Return = gen_event:delete_handler(?MODULE, Module, []), + case gen_event:which_handlers(?MODULE) of + [] -> + %% Don't want a lot of logs here if it's not needed + _ = logger:remove_handler(?MODULE), + ok; + _ -> + ok + end, + Return; + _ -> + ok + end. -simple_logger() -> - gen_event:add_handler(error_logger, error_logger, []). +which_report_handlers() -> + case whereis(?MODULE) of + Pid when is_pid(Pid) -> + gen_event:which_handlers(?MODULE); + undefined -> + [] + end. %% Log all errors to File for all eternity @@ -308,26 +490,35 @@ simple_logger() -> FilenameReason :: no_log_file. logfile({open, File}) -> - case lists:member(error_logger_file_h, - gen_event:which_handlers(error_logger)) of + case lists:member(error_logger_file_h,which_report_handlers()) of true -> {error, allready_have_logfile}; _ -> - gen_event:add_handler(error_logger, error_logger_file_h, File) + add_report_handler(error_logger_file_h, File) end; logfile(close) -> - case gen_event:delete_handler(error_logger, error_logger_file_h, normal) of - {error,Reason} -> - {error,Reason}; - _ -> - ok + case whereis(?MODULE) of + Pid when is_pid(Pid) -> + case gen_event:delete_handler(?MODULE, error_logger_file_h, normal) of + {error,Reason} -> + {error,Reason}; + _ -> + ok + end; + _ -> + {error,module_not_found} end; logfile(filename) -> - case gen_event:call(error_logger, error_logger_file_h, filename) of - {error,_} -> - {error, no_log_file}; - Val -> - Val + case whereis(?MODULE) of + Pid when is_pid(Pid) -> + case gen_event:call(?MODULE, error_logger_file_h, filename) of + {error,_} -> + {error, no_log_file}; + Val -> + Val + end; + _ -> + {error, no_log_file} end. %% Possibly turn off all tty printouts, maybe we only want the errors @@ -337,194 +528,38 @@ logfile(filename) -> Flag :: boolean(). tty(true) -> - Hs = gen_event:which_handlers(error_logger), - case lists:member(error_logger_tty_h, Hs) of - false -> - gen_event:add_handler(error_logger, error_logger_tty_h, []); - true -> - ignore - end, + _ = case lists:member(error_logger_tty_h, which_report_handlers()) of + false -> + case logger:get_handler_config(default) of + {ok,#{module:=logger_std_h,config:=#{type:=standard_io}}} -> + logger:remove_handler_filter(default, + error_logger_tty_false); + _ -> + logger:add_handler(error_logger_tty_true,logger_std_h, + #{filter_default=>stop, + filters=>?DEFAULT_HANDLER_FILTERS( + [otp]), + formatter=>{?DEFAULT_FORMATTER, + ?DEFAULT_FORMAT_CONFIG}, + config=>#{type=>standard_io}}) + end; + true -> + ok + end, ok; tty(false) -> - gen_event:delete_handler(error_logger, error_logger_tty_h, []), + delete_report_handler(error_logger_tty_h), + _ = logger:remove_handler(error_logger_tty_true), + _ = case logger:get_handler_config(default) of + {ok,#{module:=logger_std_h,config:=#{type:=standard_io}}} -> + logger:add_handler_filter(default,error_logger_tty_false, + {fun(_,_) -> stop end, ok}); + _ -> + ok + end, ok. - -%%% --------------------------------------------------- -%%% This is the default error_logger handler. -%%% --------------------------------------------------- - --spec init(term()) -> {'ok', state() | []}. - -init(Max) when is_integer(Max) -> - {ok, {Max, 0, []}}; -%% This one is called if someone took over from us, and now wants to -%% go back. -init({go_back, _PostState}) -> - {ok, {?buffer_size, 0, []}}; -init(_) -> - %% The error logger process may receive a huge amount of - %% messages. Make sure that they are stored off heap to - %% avoid exessive GCs. - process_flag(message_queue_data, off_heap), - {ok, []}. - --spec handle_event(term(), state()) -> {'ok', state()}. - -handle_event({Type, GL, Msg}, State) when node(GL) =/= node() -> - gen_event:notify({error_logger, node(GL)},{Type, GL, Msg}), - %% handle_event2({Type, GL, Msg}, State); %% Shall we do something - {ok, State}; %% at this node too ??? -handle_event({info_report, _, {_, Type, _}}, State) when Type =/= std_info -> - {ok, State}; %% Ignore other info reports here -handle_event(Event, State) -> - handle_event2(Event, State). - --spec handle_info(term(), state()) -> {'ok', state()}. - -handle_info({emulator, GL, Chars}, State) when node(GL) =/= node() -> - {error_logger, node(GL)} ! {emulator, GL, add_node(Chars,self())}, - {ok, State}; -handle_info({emulator, GL, Chars}, State) -> - handle_event2({emulator, GL, Chars}, State); -handle_info(_, State) -> - {ok, State}. - --spec handle_call(term(), state()) -> {'ok', {'error', 'bad_query'}, state()}. - -handle_call(_Query, State) -> {ok, {error, bad_query}, State}. - --spec terminate(term(), state()) -> {'error_logger', [term()]}. - -terminate(swap, {_, 0, Buff}) -> - {error_logger, Buff}; -terminate(swap, {_, Lost, Buff}) -> - Myevent = {info, group_leader(), {self(), {lost_messages, Lost}, []}}, - {error_logger, [tag_event(Myevent)|Buff]}; -terminate(_, _) -> - {error_logger, []}. - -handle_event2(Event, {1, Lost, Buff}) -> - display(tag_event(Event)), - {ok, {1, Lost+1, Buff}}; -handle_event2(Event, {N, Lost, Buff}) -> - Tagged = tag_event(Event), - display(Tagged), - {ok, {N-1, Lost, [Tagged|Buff]}}; -handle_event2(_, State) -> - {ok, State}. - -tag_event(Event) -> - {erlang:localtime(), Event}. - -display({Tag,{error,_,{_,Format,Args}}}) -> - display2(Tag,Format,Args); -display({Tag,{error_report,_,{_,Type,Report}}}) -> - display2(Tag,Type,Report); -display({Tag,{info_report,_,{_,Type,Report}}}) -> - display2(Tag,Type,Report); -display({Tag,{info,_,{_,Error,_}}}) -> - display2(Tag,Error,[]); -display({Tag,{info_msg,_,{_,Format,Args}}}) -> - display2(Tag,Format,Args); -display({Tag,{warning_report,_,{_,Type,Report}}}) -> - display2(Tag,Type,Report); -display({Tag,{warning_msg,_,{_,Format,Args}}}) -> - display2(Tag,Format,Args); -display({Tag,{emulator,_,Chars}}) -> - display2(Tag,Chars,[]). - -add_node(X, Pid) when is_atom(X) -> - add_node(atom_to_list(X), Pid); -add_node(X, Pid) -> - lists:concat([X,"** at node ",node(Pid)," **~n"]). - -%% Can't do io_lib:format - -display2({{_Y,_Mo,_D},{_H,_Mi,_S}} = Date, F, A) -> - display_date(Date), - display3(string_p(F), F, A). - -display_date({{Y,Mo,D},{H,Mi,S}}) -> - erlang:display_string( - integer_to_list(Y) ++ "-" ++ - two_digits(Mo) ++ "-" ++ - two_digits(D) ++ " " ++ - two_digits(H) ++ ":" ++ - two_digits(Mi) ++ ":" ++ - two_digits(S) ++ " "). - -two_digits(N) when 0 =< N, N =< 9 -> - [$0, $0 + N]; -two_digits(N) -> - integer_to_list(N). - -display3(true, F, A) -> - %% Format string with arguments - erlang:display_string(F ++ "\n"), - [begin - erlang:display_string("\t"), - erlang:display(Arg) - end || Arg <- A], - ok; -display3(false, Atom, A) when is_atom(Atom) -> - %% The widest atom seems to be 'supervisor_report' at 17. - ColumnWidth = 20, - AtomString = atom_to_list(Atom), - AtomLength = length(AtomString), - Padding = lists:duplicate(ColumnWidth - AtomLength, $\s), - erlang:display_string(AtomString ++ Padding), - display4(A); -display3(_, F, A) -> - erlang:display({F, A}). - -display4([A, []]) -> - %% Not sure why crash reports look like this. - display4(A); -display4(A = [_|_]) -> - case lists:all(fun({Key,_Value}) -> is_atom(Key); (_) -> false end, A) of - true -> - erlang:display_string("\n"), - lists:foreach( - fun({Key, Value}) -> - erlang:display_string( - " " ++ - atom_to_list(Key) ++ - ": "), - erlang:display(Value) - end, A); - false -> - erlang:display(A) - end; -display4(A) -> - erlang:display(A). - -string_p([]) -> - false; -string_p(Term) -> - string_p1(Term). - -string_p1([H|T]) when is_integer(H), H >= $\040, H =< $\176 -> - string_p1(T); -string_p1([H|T]) when is_integer(H), H >= 16#A0, H < 16#D800; - is_integer(H), H > 16#DFFF, H < 16#FFFE; - is_integer(H), H > 16#FFFF, H =< 16#10FFFF -> - string_p1(T); -string_p1([$\n|T]) -> string_p1(T); -string_p1([$\r|T]) -> string_p1(T); -string_p1([$\t|T]) -> string_p1(T); -string_p1([$\v|T]) -> string_p1(T); -string_p1([$\b|T]) -> string_p1(T); -string_p1([$\f|T]) -> string_p1(T); -string_p1([$\e|T]) -> string_p1(T); -string_p1([H|T]) when is_list(H) -> - case string_p1(H) of - true -> string_p1(T); - _ -> false - end; -string_p1([]) -> true; -string_p1(_) -> false. - +%%%----------------------------------------------------------------- -spec limit_term(term()) -> term(). limit_term(Term) -> @@ -539,6 +574,8 @@ get_format_depth() -> case application:get_env(kernel, error_logger_format_depth) of {ok, Depth} when is_integer(Depth) -> max(10, Depth); + {ok, unlimited} -> + unlimited; undefined -> unlimited end. diff --git a/lib/kernel/src/erts_debug.erl b/lib/kernel/src/erts_debug.erl index 9662f8fa90..1270de4144 100644 --- a/lib/kernel/src/erts_debug.erl +++ b/lib/kernel/src/erts_debug.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1999-2016. All Rights Reserved. +%% Copyright Ericsson AB 1999-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -21,7 +21,7 @@ %% Low-level debugging support. EXPERIMENTAL! --export([size/1,df/1,df/2,df/3,df/4,ic/1]). +-export([size/1,df/1,df/2,df/3,dis_to_file/2,ic/1]). %% This module contains the following *experimental* BIFs: %% disassemble/1 @@ -32,11 +32,11 @@ %%% BIFs -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, + flat_size/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, - lcnt_control/1, lcnt_control/2, lcnt_collect/0, lcnt_clear/0]). + lcnt_control/1, lcnt_control/2, lcnt_collect/0, lcnt_clear/0, + lc_graph/0, lc_graph_to_dot/2, lc_graph_merge/2]). -spec breakpoint(MFA, Flag) -> non_neg_integer() when MFA :: {Module :: module(), @@ -70,18 +70,6 @@ display(_) -> dist_ext_to_term(_, _) -> erlang:nif_error(undef). --spec dump_monitors(Id) -> true when - Id :: pid() | atom(). - -dump_monitors(_) -> - erlang:nif_error(undef). - --spec dump_links(Id) -> true when - Id :: pid() | port() | atom(). - -dump_links(_) -> - erlang:nif_error(undef). - -spec flat_size(Term) -> non_neg_integer() when Term :: term(). @@ -347,55 +335,52 @@ is_term_seen(_, []) -> false. -spec df(module()) -> df_ret(). df(Mod) when is_atom(Mod) -> - df(lists:concat([Mod, ".dis"]), Mod). - --spec df(module(), atom()) -> df_ret(); - (file:io_device() | file:filename(), module()) -> df_ret(). - -df(Mod, Func) when is_atom(Mod), is_atom(Func) -> - df(lists:concat([Mod, "_", Func, ".dis"]), Mod, Func); -df(Name, Mod) when is_atom(Mod) -> try Mod:module_info(functions) of Fs0 when is_list(Fs0) -> + Name = lists:concat([Mod, ".dis"]), Fs = [{Mod,Func,Arity} || {Func,Arity} <- Fs0], dff(Name, Fs) catch _:_ -> {undef,Mod} end. +-spec df(module(), atom()) -> df_ret(). --spec df(module(), atom(), arity()) -> df_ret(); - (file:io_device() | file:filename(), module(), atom()) -> df_ret(). - -df(Mod, Func, Arity) when is_atom(Mod), is_atom(Func), is_integer(Arity) -> - df(lists:concat([Mod, "_", Func, "_", Arity, ".dis"]), Mod, Func, Arity); -df(Name, Mod, Func) when is_atom(Mod), is_atom(Func) -> +df(Mod, Func) when is_atom(Mod), is_atom(Func) -> try Mod:module_info(functions) of Fs0 when is_list(Fs0) -> + Name = lists:concat([Mod, "_", Func, ".dis"]), Fs = [{Mod,Func1,Arity} || {Func1,Arity} <- Fs0, Func1 =:= Func], dff(Name, Fs) catch _:_ -> {undef,Mod} end. --spec df(file:io_device() | file:filename(), module(), atom(), arity()) -> df_ret(). -df(Name, Mod, Func, Arity) when is_atom(Mod), is_atom(Func), is_integer(Arity) -> +-spec df(module(), atom(), arity()) -> df_ret(). + +df(Mod, Func, Arity) when is_atom(Mod), is_atom(Func) -> try Mod:module_info(functions) of Fs0 when is_list(Fs0) -> + Name = lists:concat([Mod, "_", Func, "_", Arity, ".dis"]), Fs = [{Mod,Func1,Arity1} || {Func1,Arity1} <- Fs0, Func1 =:= Func, Arity1 =:= Arity], dff(Name, Fs) catch _:_ -> {undef,Mod} end. -dff(File, Fs) when is_pid(File), is_list(Fs) -> - lists:foreach(fun(Mfa) -> - disassemble_function(File, Mfa), - io:nl(File) - end, Fs); -dff(Name, Fs) when is_list(Name) -> - case file:open(Name, [write]) of +-spec dis_to_file(module(), file:filename()) -> df_ret(). + +dis_to_file(Mod, Name) when is_atom(Mod) -> + try Mod:module_info(functions) of + Fs0 when is_list(Fs0) -> + Fs = [{Mod,Func,Arity} || {Func,Arity} <- Fs0], + dff(Name, Fs) + catch _:_ -> {undef,Mod} + end. + +dff(Name, Fs) -> + case file:open(Name, [write,raw,delayed_write]) of {ok,F} -> try - dff(F, Fs) + dff_1(F, Fs) after _ = file:close(F) end; @@ -403,12 +388,18 @@ dff(Name, Fs) when is_list(Name) -> {error,{badopen,Reason}} end. +dff_1(File, Fs) -> + lists:foreach(fun(Mfa) -> + disassemble_function(File, Mfa), + file:write(File, "\n") + end, Fs). + disassemble_function(File, {_,_,_}=MFA) -> cont_dis(File, erts_debug:disassemble(MFA), MFA). cont_dis(_, false, _) -> ok; cont_dis(File, {Addr,Str,MFA}, MFA) -> - io:put_chars(File, binary_to_list(Str)), + ok = file:write(File, Str), cont_dis(File, erts_debug:disassemble(Addr), MFA); cont_dis(_, {_,_,_}, _) -> ok. @@ -417,3 +408,90 @@ cont_dis(_, {_,_,_}, _) -> ok. map_info(_) -> erlang:nif_error(undef). + +%% Create file "lc_graph.<pid>" with all actual lock dependencies +%% recorded so far by the VM. +%% Needs debug VM or --enable-lock-checking config, returns 'notsup' otherwise. +lc_graph() -> + erts_debug:set_internal_state(available_internal_state, true), + erts_debug:get_internal_state(lc_graph). + +%% Convert "lc_graph.<pid>" file to https://www.graphviz.org dot format. +lc_graph_to_dot(OutFile, InFile) -> + {ok, [LL0]} = file:consult(InFile), + + [{"NO LOCK",0} | LL] = LL0, + Map = maps:from_list([{Id, Name} || {Name, Id, _, _} <- LL]), + + case file:open(OutFile, [exclusive]) of + {ok, Out} -> + ok = file:write(Out, "digraph G {\n"), + + [dot_print_lock(Out, Lck, Map) || Lck <- LL], + + ok = file:write(Out, "}\n"), + ok = file:close(Out); + + {error,eexist} -> + {"File already exists", OutFile} + end. + +dot_print_lock(Out, {_Name, Id, Lst, _}, Map) -> + [dot_print_edge(Out, From, Id, Map) || From <- Lst], + ok. + +dot_print_edge(_, 0, _, _) -> + ignore; % "NO LOCK" +dot_print_edge(Out, From, To, Map) -> + io:format(Out, "~p -> ~p;\n", [maps:get(From,Map), maps:get(To,Map)]). + + +%% Merge several "lc_graph" files into one file. +lc_graph_merge(OutFile, InFiles) -> + LLs = lists:map(fun(InFile) -> + {ok, [LL]} = file:consult(InFile), + LL + end, + InFiles), + + Res = lists:foldl(fun(A, B) -> lcg_merge(A, B) end, + hd(LLs), + tl(LLs)), + case file:open(OutFile, [exclusive]) of + {ok, Out} -> + try + lcg_print(Out, Res) + after + file:close(Out) + end, + ok; + {error, eexist} -> + {"File already exists", OutFile} + end. + +lcg_merge(A, B) -> + lists:zipwith(fun(LA, LB) -> lcg_merge_locks(LA, LB) end, + A, B). + +lcg_merge_locks(L, L) -> + L; +lcg_merge_locks({Name, Id, DA, IA}, {Name, Id, DB, IB}) -> + Direct = lists:umerge(DA, DB), + Indirect = lists:umerge(IA, IB), + {Name, Id, Direct, Indirect -- Direct}. + + +lcg_print(Out, LL) -> + io:format(Out, "[", []), + lcg_print_locks(Out, LL), + io:format(Out, "].\n", []), + ok. + +lcg_print_locks(Out, [{_,_}=NoLock | Rest]) -> + io:format(Out, "~p,\n", [NoLock]), + lcg_print_locks(Out, Rest); +lcg_print_locks(Out, [LastLock]) -> + io:format(Out, "~w", [LastLock]); +lcg_print_locks(Out, [Lock | Rest]) -> + io:format(Out, "~w,\n", [Lock]), + lcg_print_locks(Out, Rest). diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl index 933f2d5f65..1d4e37196c 100644 --- a/lib/kernel/src/file.erl +++ b/lib/kernel/src/file.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2017. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -69,10 +69,10 @@ %% Types that can be used from other modules -- alphabetically ordered. -export_type([date_time/0, fd/0, file_info/0, filename/0, filename_all/0, - io_device/0, name/0, name_all/0, posix/0]). + io_device/0, mode/0, name/0, name_all/0, posix/0]). %%% Includes and defines --include("file.hrl"). +-include("file_int.hrl"). -define(FILE_IO_SERVER_TABLE, file_io_servers). @@ -101,14 +101,25 @@ -type deep_list() :: [char() | atom() | deep_list()]. -type name() :: string() | atom() | deep_list(). -type name_all() :: string() | atom() | deep_list() | (RawFilename :: binary()). --type posix() :: 'eacces' | 'eagain' | 'ebadf' | 'ebusy' | 'edquot' - | 'eexist' | 'efault' | 'efbig' | 'eintr' | 'einval' - | 'eio' | 'eisdir' | 'eloop' | 'emfile' | 'emlink' - | 'enametoolong' - | 'enfile' | 'enodev' | 'enoent' | 'enomem' | 'enospc' - | 'enotblk' | 'enotdir' | 'enotsup' | 'enxio' | 'eperm' - | 'epipe' | 'erofs' | 'espipe' | 'esrch' | 'estale' - | 'exdev'. +-type posix() :: + 'eacces' | 'eagain' | + 'ebadf' | 'ebadmsg' | 'ebusy' | + 'edeadlk' | 'edeadlock' | 'edquot' | + 'eexist' | + 'efault' | 'efbig' | 'eftype' | + 'eintr' | 'einval' | 'eio' | 'eisdir' | + 'eloop' | + 'emfile' | 'emlink' | 'emultihop' | + 'enametoolong' | 'enfile' | + 'enobufs' | 'enodev' | 'enolck' | 'enolink' | 'enoent' | + 'enomem' | 'enospc' | 'enosr' | 'enostr' | 'enosys' | + 'enotblk' | 'enotdir' | 'enotsup' | 'enxio' | + 'eopnotsupp' | 'eoverflow' | + 'eperm' | 'epipe' | + 'erange' | 'erofs' | + 'espipe' | 'esrch' | 'estale' | + 'etxtbsy' | + 'exdev'. -type date_time() :: calendar:datetime(). -type posix_file_advise() :: 'normal' | 'sequential' | 'random' | 'no_reuse' | 'will_need' | 'dont_need'. @@ -454,41 +465,23 @@ raw_write_file_info(Name, #file_info{} = Info) -> Reason :: posix() | badarg | system_limit. open(Item, ModeList) when is_list(ModeList) -> - case lists:member(raw, ModeList) of - %% Raw file, use ?PRIM_FILE to handle this file - true -> + case {lists:member(raw, ModeList), lists:member(ram, ModeList)} of + {false, false} -> + %% File server file Args = [file_name(Item) | ModeList], case check_args(Args) of ok -> [FileName | _] = Args, - %% We rely on the returned Handle (in {ok, Handle}) - %% being a pid() or a #file_descriptor{} - ?PRIM_FILE:open(FileName, ModeList); + call(open, [FileName, ModeList]); Error -> Error - end; - false -> - case lists:member(ram, ModeList) of - %% RAM file, use ?RAM_FILE to handle this file - true -> - case check_args(ModeList) of - ok -> - ?RAM_FILE:open(Item, ModeList); - Error -> - Error - end; - %% File server file - false -> - Args = [file_name(Item) | ModeList], - case check_args(Args) of - ok -> - [FileName | _] = Args, - call(open, [FileName, ModeList]); - Error -> - Error - end - end + end; + {true, _Either} -> + raw_file_io:open(file_name(Item), ModeList); + {false, true} -> + ram_file:open(Item, ModeList) end; + %% Old obsolete mode specification in atom or 2-tuple format open(Item, Mode) -> open(Item, mode_list(Mode)). @@ -1254,15 +1247,18 @@ sendfile(File, _Sock, _Offet, _Bytes, _Opts) when is_pid(File) -> sendfile(File, Sock, Offset, Bytes, []) -> sendfile(File, Sock, Offset, Bytes, ?MAX_CHUNK_SIZE, [], [], []); sendfile(File, Sock, Offset, Bytes, Opts) -> - ChunkSize0 = proplists:get_value(chunk_size, Opts, ?MAX_CHUNK_SIZE), - ChunkSize = if ChunkSize0 > ?MAX_CHUNK_SIZE -> - ?MAX_CHUNK_SIZE; - true -> ChunkSize0 - end, - %% Support for headers, trailers and options has been removed because the - %% Darwin and BSD API for using it does not play nice with - %% non-blocking sockets. See unix_efile.c for more info. - sendfile(File, Sock, Offset, Bytes, ChunkSize, [], [], Opts). + try proplists:get_value(chunk_size, Opts, ?MAX_CHUNK_SIZE) of + ChunkSize0 when is_integer(ChunkSize0) -> + ChunkSize = erlang:min(ChunkSize0, ?MAX_CHUNK_SIZE), + %% Support for headers, trailers and options has been removed + %% because the Darwin and BSD API for using it does not play nice + %% with non-blocking sockets. See unix_efile.c for more info. + sendfile(File, Sock, Offset, Bytes, ChunkSize, [], [], Opts); + _Other -> + {error, badarg} + catch + error:_ -> {error, badarg} + end. %% sendfile/2 -spec sendfile(Filename, Socket) -> @@ -1397,8 +1393,8 @@ eval_stream2({ok,Form,EndLine}, Fd, H, Last, E, Bs0) -> try erl_eval:exprs(Form, Bs0) of {value,V,Bs} -> eval_stream(Fd, H, EndLine, {V}, E, Bs) - catch Class:Reason -> - Error = {EndLine,?MODULE,{Class,Reason,erlang:get_stacktrace()}}, + catch Class:Reason:StackTrace -> + Error = {EndLine,?MODULE,{Class,Reason,StackTrace}}, eval_stream(Fd, H, EndLine, Last, [Error|E], Bs0) end; eval_stream2({error,What,EndLine}, Fd, H, Last, E, Bs) -> diff --git a/lib/kernel/src/file_int.hrl b/lib/kernel/src/file_int.hrl new file mode 100644 index 0000000000..bafc330c04 --- /dev/null +++ b/lib/kernel/src/file_int.hrl @@ -0,0 +1,33 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% + +%% +%% Internal definitions for the 'file' module and friends. +%% + +-ifndef(FILE_INTERNAL_HRL_). +-define(FILE_INTERNAL_HRL_, 1). + +-include("file.hrl"). + +-define(CALL_FD(Fd, Method, Args), + apply(Fd#file_descriptor.module, Method, [Fd | Args])). + +-endif. diff --git a/lib/kernel/src/file_io_server.erl b/lib/kernel/src/file_io_server.erl index deb7b315b1..34d5497a4a 100644 --- a/lib/kernel/src/file_io_server.erl +++ b/lib/kernel/src/file_io_server.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2000-2015. All Rights Reserved. +%% Copyright Ericsson AB 2000-2017. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -28,7 +28,8 @@ -record(state, {handle,owner,mref,buf,read_mode,unic}). --define(PRIM_FILE, prim_file). +-include("file_int.hrl"). + -define(READ_SIZE_LIST, 128). -define(READ_SIZE_BINARY, (8*1024)). @@ -67,8 +68,9 @@ do_start(Spawn, Owner, FileName, ModeList) -> erlang:dt_restore_tag(Utag), %% process_flag(trap_exit, true), case parse_options(ModeList) of - {ReadMode, UnicodeMode, Opts} -> - case ?PRIM_FILE:open(FileName, Opts) of + {ReadMode, UnicodeMode, Opts0} -> + Opts = maybe_add_read_ahead(ReadMode, Opts0), + case raw_file_io:open(FileName, [raw | Opts]) of {error, Reason} = Error -> Self ! {Ref, Error}, exit(Reason); @@ -157,6 +159,24 @@ valid_enc({utf32,little}) -> valid_enc(_Other) -> {error,badarg}. +%% Add a small read_ahead buffer if the file is opened for reading +%% only in list mode and no read_ahead is already given. +maybe_add_read_ahead(binary, Opts) -> + Opts; +maybe_add_read_ahead(list, Opts) -> + P = fun(read_ahead) -> true; + ({read_ahead,_}) -> true; + (append) -> true; + (exclusive) -> true; + (write) -> true; + (_) -> false + end, + case lists:any(P, Opts) of + false -> + [{read_ahead, 4096}|Opts]; + true -> + Opts + end. server_loop(#state{mref = Mref} = State) -> receive @@ -205,7 +225,7 @@ io_reply(From, ReplyAs, Reply) -> file_request({advise,Offset,Length,Advise}, #state{handle=Handle}=State) -> - case ?PRIM_FILE:advise(Handle, Offset, Length, Advise) of + case ?CALL_FD(Handle, advise, [Offset, Length, Advise]) of {error,Reason}=Reply -> {stop,Reason,Reply,State}; Reply -> @@ -213,7 +233,7 @@ file_request({advise,Offset,Length,Advise}, end; file_request({allocate, Offset, Length}, #state{handle = Handle} = State) -> - Reply = ?PRIM_FILE:allocate(Handle, Offset, Length), + Reply = ?CALL_FD(Handle, allocate, [Offset, Length]), {reply, Reply, State}; file_request({pread,At,Sz}, State) when At =:= cur; @@ -256,7 +276,7 @@ file_request({pwrite,At,Data}, end; file_request(datasync, #state{handle=Handle}=State) -> - case ?PRIM_FILE:datasync(Handle) of + case ?CALL_FD(Handle, datasync, []) of {error,Reason}=Reply -> {stop,Reason,Reply,State}; Reply -> @@ -264,7 +284,7 @@ file_request(datasync, end; file_request(sync, #state{handle=Handle}=State) -> - case ?PRIM_FILE:sync(Handle) of + case ?CALL_FD(Handle, sync, []) of {error,Reason}=Reply -> {stop,Reason,Reply,State}; Reply -> @@ -272,7 +292,7 @@ file_request(sync, end; file_request(close, #state{handle=Handle}=State) -> - case ?PRIM_FILE:close(Handle) of + case ?CALL_FD(Handle, close, []) of {error,Reason}=Reply -> {stop,Reason,Reply,State#state{buf= <<>>}}; Reply -> @@ -288,7 +308,7 @@ file_request({position,At}, end; file_request(truncate, #state{handle=Handle}=State) -> - case ?PRIM_FILE:truncate(Handle) of + case ?CALL_FD(Handle, truncate, []) of {error,Reason}=Reply -> {stop,Reason,Reply,State#state{buf= <<>>}}; Reply -> @@ -398,7 +418,7 @@ io_request_loop([Request|Tail], %% put_chars(Chars, latin1, #state{handle=Handle, unic=latin1}=State) -> NewState = State#state{buf = <<>>}, - case ?PRIM_FILE:write(Handle, Chars) of + case ?CALL_FD(Handle, write, [Chars]) of {error,Reason}=Reply -> {stop,Reason,Reply,NewState}; Reply -> @@ -408,7 +428,7 @@ put_chars(Chars, InEncoding, #state{handle=Handle, unic=OutEncoding}=State) -> NewState = State#state{buf = <<>>}, case unicode:characters_to_binary(Chars,InEncoding,OutEncoding) of Bin when is_binary(Bin) -> - case ?PRIM_FILE:write(Handle, Bin) of + case ?CALL_FD(Handle, write, [Bin]) of {error,Reason}=Reply -> {stop,Reason,Reply,NewState}; Reply -> @@ -422,7 +442,7 @@ put_chars(Chars, InEncoding, #state{handle=Handle, unic=OutEncoding}=State) -> get_line(S, {<<>>, Cont}, OutEnc, #state{handle=Handle, read_mode=Mode, unic=InEnc}=State) -> - case ?PRIM_FILE:read(Handle, read_size(Mode)) of + case ?CALL_FD(Handle, read, [read_size(Mode)]) of {ok,Bin} -> get_line(S, convert_enc([Cont, Bin], InEnc, OutEnc), OutEnc, State); eof -> @@ -472,7 +492,7 @@ get_chars(N, OutEnc,#state{handle=Handle,buf=Buf,read_mode=ReadMode,unic=latin1} BufSize = byte_size(Buf), NeedSize = N-BufSize, Size = erlang:max(NeedSize, ?READ_SIZE_BINARY), - case ?PRIM_FILE:read(Handle, Size) of + case ?CALL_FD(Handle, read, [Size]) of {ok, B} -> if BufSize+byte_size(B) < N -> std_reply(cat(Buf, B, ReadMode,latin1,OutEnc), State); @@ -504,7 +524,7 @@ get_chars(N, OutEnc,#state{handle=Handle,buf=Buf,read_mode=ReadMode,unic=InEncod %% Need more, Try to read 4*needed in bytes... NeedSize = (N - BufCount) * 4, Size = erlang:max(NeedSize, ?READ_SIZE_BINARY), - case ?PRIM_FILE:read(Handle, Size) of + case ?CALL_FD(Handle, read, [Size]) of {ok, B} -> NewBuf = list_to_binary([Buf,B]), {NewCount,NewSplit} = count_and_find(NewBuf,N,InEncoding), @@ -544,7 +564,7 @@ get_chars(Mod, Func, XtraArg, OutEnc, #state{buf=Buf}=State) -> get_chars_empty(Mod, Func, XtraArg, S, latin1, #state{handle=Handle,read_mode=ReadMode, unic=latin1}=State) -> - case ?PRIM_FILE:read(Handle, read_size(ReadMode)) of + case ?CALL_FD(Handle, read, [read_size(ReadMode)]) of {ok,Bin} -> get_chars_apply(Mod, Func, XtraArg, S, latin1, State, Bin); eof -> @@ -554,7 +574,7 @@ get_chars_empty(Mod, Func, XtraArg, S, latin1, end; get_chars_empty(Mod, Func, XtraArg, S, OutEnc, #state{handle=Handle,read_mode=ReadMode}=State) -> - case ?PRIM_FILE:read(Handle, read_size(ReadMode)) of + case ?CALL_FD(Handle, read, [read_size(ReadMode)]) of {ok,Bin} -> get_chars_apply(Mod, Func, XtraArg, S, OutEnc, State, Bin); eof -> @@ -564,7 +584,7 @@ get_chars_empty(Mod, Func, XtraArg, S, OutEnc, end. get_chars_notempty(Mod, Func, XtraArg, S, OutEnc, #state{handle=Handle,read_mode=ReadMode,buf = B}=State) -> - case ?PRIM_FILE:read(Handle, read_size(ReadMode)) of + case ?CALL_FD(Handle, read, [read_size(ReadMode)]) of {ok,Bin} -> get_chars_apply(Mod, Func, XtraArg, S, OutEnc, State, list_to_binary([B,Bin])); eof -> @@ -918,13 +938,10 @@ cbv({utf32,little},_) -> %% Compensates ?PRIM_FILE:position/2 for the number of bytes %% we have buffered position(Handle, At, Buf) -> - ?PRIM_FILE:position( - Handle, - case At of - cur -> - {cur, -byte_size(Buf)}; - {cur, Offs} -> - {cur, Offs-byte_size(Buf)}; - _ -> - At - end). + SeekTo = + case At of + {cur, Offs} -> {cur, Offs-byte_size(Buf)}; + cur -> {cur, -byte_size(Buf)}; + _ -> At + end, + ?CALL_FD(Handle, position, [SeekTo]). diff --git a/lib/kernel/src/file_server.erl b/lib/kernel/src/file_server.erl index 6e8f64d932..29eaa23375 100644 --- a/lib/kernel/src/file_server.erl +++ b/lib/kernel/src/file_server.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2000-2017. All Rights Reserved. +%% Copyright Ericsson AB 2000-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -63,7 +63,7 @@ stop() -> %%% Callback functions from gen_server %%%---------------------------------------------------------------------- --type state() :: port(). % Internal type +-type state() :: term(). % Internal type %%---------------------------------------------------------------------- %% Func: init/1 @@ -73,18 +73,12 @@ stop() -> %% {stop, Reason} %%---------------------------------------------------------------------- --spec init([]) -> {'ok', state()} | {'stop', term()}. +-spec init([]) -> {'ok', state()}. init([]) -> process_flag(trap_exit, true), - case ?PRIM_FILE:start() of - {ok, Handle} -> - ?FILE_IO_SERVER_TABLE = - ets:new(?FILE_IO_SERVER_TABLE, [named_table]), - {ok, Handle}; - {error, Reason} -> - {stop, Reason} - end. + ?FILE_IO_SERVER_TABLE = ets:new(?FILE_IO_SERVER_TABLE, [named_table]), + {ok, undefined}. %%---------------------------------------------------------------------- %% Func: handle_call/3 @@ -101,7 +95,7 @@ init([]) -> {'reply', 'eof' | 'ok' | {'error', term()} | {'ok', term()}, state()} | {'stop', 'normal', 'stopped', state()}. -handle_call({open, Name, ModeList}, {Pid, _Tag} = _From, Handle) +handle_call({open, Name, ModeList}, {Pid, _Tag} = _From, State) when is_list(ModeList) -> Child = ?FILE_IO_SERVER:start_link(Pid, Name, ModeList), case Child of @@ -110,78 +104,78 @@ handle_call({open, Name, ModeList}, {Pid, _Tag} = _From, Handle) _ -> ok end, - {reply, Child, Handle}; + {reply, Child, State}; -handle_call({open, _Name, _Mode}, _From, Handle) -> - {reply, {error, einval}, Handle}; +handle_call({open, _Name, _Mode}, _From, State) -> + {reply, {error, einval}, State}; -handle_call({read_file, Name}, _From, Handle) -> - {reply, ?PRIM_FILE:read_file(Name), Handle}; +handle_call({read_file, Name}, _From, State) -> + {reply, ?PRIM_FILE:read_file(Name), State}; -handle_call({write_file, Name, Bin}, _From, Handle) -> - {reply, ?PRIM_FILE:write_file(Name, Bin), Handle}; +handle_call({write_file, Name, Bin}, _From, State) -> + {reply, ?PRIM_FILE:write_file(Name, Bin), State}; -handle_call({set_cwd, Name}, _From, Handle) -> - {reply, ?PRIM_FILE:set_cwd(Handle, Name), Handle}; +handle_call({set_cwd, Name}, _From, State) -> + {reply, ?PRIM_FILE:set_cwd(Name), State}; -handle_call({delete, Name}, _From, Handle) -> - {reply, ?PRIM_FILE:delete(Handle, Name), Handle}; +handle_call({delete, Name}, _From, State) -> + {reply, ?PRIM_FILE:delete(Name), State}; -handle_call({rename, Fr, To}, _From, Handle) -> - {reply, ?PRIM_FILE:rename(Handle, Fr, To), Handle}; +handle_call({rename, Fr, To}, _From, State) -> + {reply, ?PRIM_FILE:rename(Fr, To), State}; -handle_call({make_dir, Name}, _From, Handle) -> - {reply, ?PRIM_FILE:make_dir(Handle, Name), Handle}; +handle_call({make_dir, Name}, _From, State) -> + {reply, ?PRIM_FILE:make_dir(Name), State}; -handle_call({del_dir, Name}, _From, Handle) -> - {reply, ?PRIM_FILE:del_dir(Handle, Name), Handle}; +handle_call({del_dir, Name}, _From, State) -> + {reply, ?PRIM_FILE:del_dir(Name), State}; -handle_call({list_dir, Name}, _From, Handle) -> - {reply, ?PRIM_FILE:list_dir(Handle, Name), Handle}; -handle_call({list_dir_all, Name}, _From, Handle) -> - {reply, ?PRIM_FILE:list_dir_all(Handle, Name), Handle}; +handle_call({list_dir, Name}, _From, State) -> + {reply, ?PRIM_FILE:list_dir(Name), State}; +handle_call({list_dir_all, Name}, _From, State) -> + {reply, ?PRIM_FILE:list_dir_all(Name), State}; -handle_call(get_cwd, _From, Handle) -> - {reply, ?PRIM_FILE:get_cwd(Handle), Handle}; -handle_call({get_cwd}, _From, Handle) -> - {reply, ?PRIM_FILE:get_cwd(Handle), Handle}; -handle_call({get_cwd, Name}, _From, Handle) -> - {reply, ?PRIM_FILE:get_cwd(Handle, Name), Handle}; +handle_call(get_cwd, _From, State) -> + {reply, ?PRIM_FILE:get_cwd(), State}; +handle_call({get_cwd}, _From, State) -> + {reply, ?PRIM_FILE:get_cwd(), State}; +handle_call({get_cwd, Name}, _From, State) -> + {reply, ?PRIM_FILE:get_cwd(Name), State}; -handle_call({read_file_info, Name}, _From, Handle) -> - {reply, ?PRIM_FILE:read_file_info(Handle, Name), Handle}; +handle_call({read_file_info, Name}, _From, State) -> + {reply, ?PRIM_FILE:read_file_info(Name), State}; -handle_call({read_file_info, Name, Opts}, _From, Handle) -> - {reply, ?PRIM_FILE:read_file_info(Handle, Name, Opts), Handle}; +handle_call({read_file_info, Name, Opts}, _From, State) -> + {reply, ?PRIM_FILE:read_file_info(Name, Opts), State}; -handle_call({altname, Name}, _From, Handle) -> - {reply, ?PRIM_FILE:altname(Handle, Name), Handle}; +handle_call({altname, Name}, _From, State) -> + {reply, ?PRIM_FILE:altname(Name), State}; -handle_call({write_file_info, Name, Info}, _From, Handle) -> - {reply, ?PRIM_FILE:write_file_info(Handle, Name, Info), Handle}; +handle_call({write_file_info, Name, Info}, _From, State) -> + {reply, ?PRIM_FILE:write_file_info(Name, Info), State}; -handle_call({write_file_info, Name, Info, Opts}, _From, Handle) -> - {reply, ?PRIM_FILE:write_file_info(Handle, Name, Info, Opts), Handle}; +handle_call({write_file_info, Name, Info, Opts}, _From, State) -> + {reply, ?PRIM_FILE:write_file_info(Name, Info, Opts), State}; -handle_call({read_link_info, Name}, _From, Handle) -> - {reply, ?PRIM_FILE:read_link_info(Handle, Name), Handle}; +handle_call({read_link_info, Name}, _From, State) -> + {reply, ?PRIM_FILE:read_link_info(Name), State}; -handle_call({read_link_info, Name, Opts}, _From, Handle) -> - {reply, ?PRIM_FILE:read_link_info(Handle, Name, Opts), Handle}; +handle_call({read_link_info, Name, Opts}, _From, State) -> + {reply, ?PRIM_FILE:read_link_info(Name, Opts), State}; -handle_call({read_link, Name}, _From, Handle) -> - {reply, ?PRIM_FILE:read_link(Handle, Name), Handle}; -handle_call({read_link_all, Name}, _From, Handle) -> - {reply, ?PRIM_FILE:read_link_all(Handle, Name), Handle}; +handle_call({read_link, Name}, _From, State) -> + {reply, ?PRIM_FILE:read_link(Name), State}; +handle_call({read_link_all, Name}, _From, State) -> + {reply, ?PRIM_FILE:read_link_all(Name), State}; -handle_call({make_link, Old, New}, _From, Handle) -> - {reply, ?PRIM_FILE:make_link(Handle, Old, New), Handle}; +handle_call({make_link, Old, New}, _From, State) -> + {reply, ?PRIM_FILE:make_link(Old, New), State}; -handle_call({make_symlink, Old, New}, _From, Handle) -> - {reply, ?PRIM_FILE:make_symlink(Handle, Old, New), Handle}; +handle_call({make_symlink, Old, New}, _From, State) -> + {reply, ?PRIM_FILE:make_symlink(Old, New), State}; handle_call({copy, SourceName, SourceOpts, DestName, DestOpts, Length}, - _From, Handle) -> + _From, State) -> Reply = case ?PRIM_FILE:open(SourceName, [read, binary | SourceOpts]) of {ok, Source} -> @@ -201,14 +195,14 @@ handle_call({copy, SourceName, SourceOpts, DestName, DestOpts, Length}, {error, _} = Error -> Error end, - {reply, Reply, Handle}; + {reply, Reply, State}; -handle_call(stop, _From, Handle) -> - {stop, normal, stopped, Handle}; +handle_call(stop, _From, State) -> + {stop, normal, stopped, State}; -handle_call(Request, From, Handle) -> +handle_call(Request, From, State) -> error_logger:error_msg("handle_call(~tp, ~tp, _)", [Request, From]), - {noreply, Handle}. + {noreply, State}. %%---------------------------------------------------------------------- %% Func: handle_cast/2 @@ -231,16 +225,11 @@ handle_cast(Msg, State) -> %%---------------------------------------------------------------------- -spec handle_info(term(), state()) -> - {'noreply', state()} | {'stop', 'normal', state()}. + {'noreply', state()}. -handle_info({'EXIT', Pid, _Reason}, Handle) when is_pid(Pid) -> +handle_info({'EXIT', Pid, _Reason}, State) when is_pid(Pid) -> ets:delete(?FILE_IO_SERVER_TABLE, Pid), - {noreply, Handle}; - -handle_info({'EXIT', Handle, _Reason}, Handle) -> - error_logger:error_msg("Port controlling ~w terminated in ~w", - [?FILE_SERVER, ?MODULE]), - {stop, normal, Handle}; + {noreply, State}; handle_info(Info, State) -> error_logger:error_msg("handle_Info(~tp, _)", [Info]), @@ -254,8 +243,8 @@ handle_info(Info, State) -> -spec terminate(term(), state()) -> 'ok'. -terminate(_Reason, Handle) -> - ?PRIM_FILE:stop(Handle). +terminate(_Reason, _State) -> + ok. %%---------------------------------------------------------------------- %% Func: code_change/3 diff --git a/lib/kernel/src/gen_sctp.erl b/lib/kernel/src/gen_sctp.erl index a6aa0edd15..d893d44079 100644 --- a/lib/kernel/src/gen_sctp.erl +++ b/lib/kernel/src/gen_sctp.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2007-2016. All Rights Reserved. +%% Copyright Ericsson AB 2007-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -66,7 +66,12 @@ {sctp_set_peer_primary_addr, #sctp_setpeerprim{}} | {sctp_status, #sctp_status{}} | {sndbuf, non_neg_integer()} | - {tos, non_neg_integer()}. + {tos, non_neg_integer()} | + {tclass, non_neg_integer()} | + {ttl, non_neg_integer()} | + {recvtos, boolean()} | + {recvtclass, boolean()} | + {recvttl, boolean()}. -type option_name() :: active | buffer | @@ -97,7 +102,12 @@ sctp_set_peer_primary_addr | sctp_status | sndbuf | - tos. + tos | + tclass | + ttl | + recvtos | + recvtclass | + recvttl. -type sctp_socket() :: port(). -export_type([assoc_id/0, option/0, option_name/0, sctp_socket/0]). @@ -118,6 +128,8 @@ open() -> | inet:address_family() | {port,Port} | {type,SockType} + | {netns, file:filename_all()} + | {bind_to_device, binary()} | option(), IP :: inet:ip_address() | any | loopback, Port :: inet:port_number(), @@ -363,7 +375,7 @@ send(S, AssocChange, Stream, Data) -> Socket :: sctp_socket(), FromIP :: inet:ip_address(), FromPort :: inet:port_number(), - AncData :: [#sctp_sndrcvinfo{}], + AncData :: [#sctp_sndrcvinfo{} | inet:ancillary_data()], Data :: binary() | string() | #sctp_sndrcvinfo{} | #sctp_assoc_change{} | #sctp_paddr_change{} | #sctp_adaptation_event{}, @@ -380,7 +392,7 @@ recv(S) -> Timeout :: timeout(), FromIP :: inet:ip_address(), FromPort :: inet:port_number(), - AncData :: [#sctp_sndrcvinfo{}], + AncData :: [#sctp_sndrcvinfo{} | inet:ancillary_data()], Data :: binary() | string() | #sctp_sndrcvinfo{} | #sctp_assoc_change{} | #sctp_paddr_change{} | #sctp_adaptation_event{}, diff --git a/lib/kernel/src/gen_tcp.erl b/lib/kernel/src/gen_tcp.erl index ac61dbc792..7f7833ec23 100644 --- a/lib/kernel/src/gen_tcp.erl +++ b/lib/kernel/src/gen_tcp.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2016. All Rights Reserved. +%% Copyright Ericsson AB 1997-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -62,7 +62,14 @@ {show_econnreset, boolean()} | {sndbuf, non_neg_integer()} | {tos, non_neg_integer()} | + {tclass, non_neg_integer()} | + {ttl, non_neg_integer()} | + {recvtos, boolean()} | + {recvtclass, boolean()} | + {recvttl, boolean()} | {ipv6_v6only, boolean()}. +-type pktoptions_value() :: + {pktoptions, inet:ancillary_data()}. -type option_name() :: active | buffer | @@ -81,6 +88,7 @@ nodelay | packet | packet_size | + pktoptions | priority | {raw, Protocol :: non_neg_integer(), @@ -94,6 +102,12 @@ show_econnreset | sndbuf | tos | + tclass | + ttl | + recvtos | + recvtclass | + recvttl | + pktoptions | ipv6_v6only. -type connect_option() :: {ip, inet:socket_address()} | @@ -102,6 +116,8 @@ inet:address_family() | {port, inet:port_number()} | {tcp_module, module()} | + {netns, file:filename_all()} | + {bind_to_device, binary()} | option(). -type listen_option() :: {ip, inet:socket_address()} | @@ -111,11 +127,13 @@ {port, inet:port_number()} | {backlog, B :: non_neg_integer()} | {tcp_module, module()} | + {netns, file:filename_all()} | + {bind_to_device, binary()} | option(). -type socket() :: port(). -export_type([option/0, option_name/0, connect_option/0, listen_option/0, - socket/0]). + socket/0, pktoptions_value/0]). %% %% Connect a socket diff --git a/lib/kernel/src/gen_udp.erl b/lib/kernel/src/gen_udp.erl index 3121544719..d6e8652e77 100644 --- a/lib/kernel/src/gen_udp.erl +++ b/lib/kernel/src/gen_udp.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2016. All Rights Reserved. +%% Copyright Ericsson AB 1997-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -51,6 +51,11 @@ {reuseaddr, boolean()} | {sndbuf, non_neg_integer()} | {tos, non_neg_integer()} | + {tclass, non_neg_integer()} | + {ttl, non_neg_integer()} | + {recvtos, boolean()} | + {recvtclass, boolean()} | + {recvttl, boolean()} | {ipv6_v6only, boolean()}. -type option_name() :: active | @@ -76,6 +81,12 @@ reuseaddr | sndbuf | tos | + tclass | + ttl | + recvtos | + recvtclass | + recvttl | + pktoptions | ipv6_v6only. -type socket() :: port(). @@ -97,6 +108,8 @@ open(Port) -> | {ifaddr, inet:socket_address()} | inet:address_family() | {port, inet:port_number()} + | {netns, file:filename_all()} + | {bind_to_device, binary()} | option(), Socket :: socket(), Reason :: inet:posix(). @@ -145,11 +158,13 @@ send(S, Packet) when is_port(S) -> end. -spec recv(Socket, Length) -> - {ok, {Address, Port, Packet}} | {error, Reason} when + {ok, RecvData} | {error, Reason} when Socket :: socket(), Length :: non_neg_integer(), + RecvData :: {Address, Port, Packet} | {Address, Port, AncData, Packet}, Address :: inet:ip_address() | inet:returned_non_ip_address(), Port :: inet:port_number(), + AncData :: inet:ancillary_data(), Packet :: string() | binary(), Reason :: not_owner | inet:posix(). @@ -162,12 +177,14 @@ recv(S,Len) when is_port(S), is_integer(Len) -> end. -spec recv(Socket, Length, Timeout) -> - {ok, {Address, Port, Packet}} | {error, Reason} when + {ok, RecvData} | {error, Reason} when Socket :: socket(), Length :: non_neg_integer(), Timeout :: timeout(), + RecvData :: {Address, Port, Packet} | {Address, Port, AncData, Packet}, Address :: inet:ip_address() | inet:returned_non_ip_address(), Port :: inet:port_number(), + AncData :: inet:ancillary_data(), Packet :: string() | binary(), Reason :: not_owner | inet:posix(). diff --git a/lib/kernel/src/group.erl b/lib/kernel/src/group.erl index bf785959ff..5625ae6eb7 100644 --- a/lib/kernel/src/group.erl +++ b/lib/kernel/src/group.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2017. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -114,7 +114,7 @@ server_loop(Drv, Shell, Buf0) -> {io_request,From,ReplyAs,Req} when is_pid(From) -> %% This io_request may cause a transition to a couple of %% selective receive loops elsewhere in this module. - Buf = io_request(Req, From, ReplyAs, Drv, Buf0), + Buf = io_request(Req, From, ReplyAs, Drv, Shell, Buf0), server_loop(Drv, Shell, Buf); {reply,{{From,ReplyAs},Reply}} -> io_reply(From, ReplyAs, Reply), @@ -135,7 +135,7 @@ server_loop(Drv, Shell, Buf0) -> exit(R); %% We want to throw away any term that we don't handle (standard %% practice in receive loops), but not any {Drv,_} tuples which are - %% handled in io_request/5. + %% handled in io_request/6. NotDrvTuple when (not is_tuple(NotDrvTuple)) orelse (tuple_size(NotDrvTuple) =/= 2) orelse (element(1, NotDrvTuple) =/= Drv) -> @@ -177,8 +177,8 @@ set_unicode_state(Drv,Bool) -> end. -io_request(Req, From, ReplyAs, Drv, Buf0) -> - case io_request(Req, Drv, {From,ReplyAs}, Buf0) of +io_request(Req, From, ReplyAs, Drv, Shell, Buf0) -> + case io_request(Req, Drv, Shell, {From,ReplyAs}, Buf0) of {ok,Reply,Buf} -> io_reply(From, ReplyAs, Reply), Buf; @@ -208,7 +208,7 @@ io_request(Req, From, ReplyAs, Drv, Buf0) -> %% %% These put requests have to be synchronous to the driver as otherwise %% there is no guarantee that the data has actually been printed. -io_request({put_chars,unicode,Chars}, Drv, From, Buf) -> +io_request({put_chars,unicode,Chars}, Drv, _Shell, From, Buf) -> case catch unicode:characters_to_binary(Chars,utf8) of Binary when is_binary(Binary) -> send_drv(Drv, {put_chars_sync, unicode, Binary, {From,ok}}), @@ -216,7 +216,7 @@ io_request({put_chars,unicode,Chars}, Drv, From, Buf) -> _ -> {error,{error,{put_chars, unicode,Chars}},Buf} end; -io_request({put_chars,unicode,M,F,As}, Drv, From, Buf) -> +io_request({put_chars,unicode,M,F,As}, Drv, _Shell, From, Buf) -> case catch apply(M, F, As) of Binary when is_binary(Binary) -> send_drv(Drv, {put_chars_sync, unicode, Binary, {From,ok}}), @@ -230,12 +230,12 @@ io_request({put_chars,unicode,M,F,As}, Drv, From, Buf) -> {error,{error,F},Buf} end end; -io_request({put_chars,latin1,Binary}, Drv, From, Buf) when is_binary(Binary) -> +io_request({put_chars,latin1,Binary}, Drv, _Shell, From, Buf) when is_binary(Binary) -> send_drv(Drv, {put_chars_sync, unicode, unicode:characters_to_binary(Binary,latin1), {From,ok}}), {noreply,Buf}; -io_request({put_chars,latin1,Chars}, Drv, From, Buf) -> +io_request({put_chars,latin1,Chars}, Drv, _Shell, From, Buf) -> case catch unicode:characters_to_binary(Chars,latin1) of Binary when is_binary(Binary) -> send_drv(Drv, {put_chars_sync, unicode, Binary, {From,ok}}), @@ -243,7 +243,7 @@ io_request({put_chars,latin1,Chars}, Drv, From, Buf) -> _ -> {error,{error,{put_chars,latin1,Chars}},Buf} end; -io_request({put_chars,latin1,M,F,As}, Drv, From, Buf) -> +io_request({put_chars,latin1,M,F,As}, Drv, _Shell, From, Buf) -> case catch apply(M, F, As) of Binary when is_binary(Binary) -> send_drv(Drv, {put_chars_sync, unicode, @@ -260,30 +260,30 @@ io_request({put_chars,latin1,M,F,As}, Drv, From, Buf) -> end end; -io_request({get_chars,Encoding,Prompt,N}, Drv, _From, Buf) -> - get_chars(Prompt, io_lib, collect_chars, N, Drv, Buf, Encoding); -io_request({get_line,Encoding,Prompt}, Drv, _From, Buf) -> - get_chars(Prompt, io_lib, collect_line, [], Drv, Buf, Encoding); -io_request({get_until,Encoding, Prompt,M,F,As}, Drv, _From, Buf) -> - get_chars(Prompt, io_lib, get_until, {M,F,As}, Drv, Buf, Encoding); -io_request({get_password,_Encoding},Drv,_From,Buf) -> - get_password_chars(Drv, Buf); -io_request({setopts,Opts}, Drv, _From, Buf) when is_list(Opts) -> +io_request({get_chars,Encoding,Prompt,N}, Drv, Shell, _From, Buf) -> + get_chars_n(Prompt, io_lib, collect_chars, N, Drv, Shell, Buf, Encoding); +io_request({get_line,Encoding,Prompt}, Drv, Shell, _From, Buf) -> + get_chars_line(Prompt, io_lib, collect_line, [], Drv, Shell, Buf, Encoding); +io_request({get_until,Encoding, Prompt,M,F,As}, Drv, Shell, _From, Buf) -> + get_chars_line(Prompt, io_lib, get_until, {M,F,As}, Drv, Shell, Buf, Encoding); +io_request({get_password,_Encoding},Drv,Shell,_From,Buf) -> + get_password_chars(Drv, Shell, Buf); +io_request({setopts,Opts}, Drv, _Shell, _From, Buf) when is_list(Opts) -> setopts(Opts, Drv, Buf); -io_request(getopts, Drv, _From, Buf) -> +io_request(getopts, Drv, _Shell, _From, Buf) -> getopts(Drv, Buf); -io_request({requests,Reqs}, Drv, From, Buf) -> - io_requests(Reqs, {ok,ok,Buf}, From, Drv); +io_request({requests,Reqs}, Drv, Shell, From, Buf) -> + io_requests(Reqs, {ok,ok,Buf}, From, Drv, Shell); %% New in R12 -io_request({get_geometry,columns},Drv,_From,Buf) -> +io_request({get_geometry,columns},Drv,_Shell,_From,Buf) -> case get_tty_geometry(Drv) of {W,_H} -> {ok,W,Buf}; _ -> {error,{error,enotsup},Buf} end; -io_request({get_geometry,rows},Drv,_From,Buf) -> +io_request({get_geometry,rows},Drv,_Shell,_From,Buf) -> case get_tty_geometry(Drv) of {_W,H} -> {ok,H,Buf}; @@ -292,40 +292,40 @@ io_request({get_geometry,rows},Drv,_From,Buf) -> end; %% BC with pre-R13 -io_request({put_chars,Chars}, Drv, From, Buf) -> - io_request({put_chars,latin1,Chars}, Drv, From, Buf); -io_request({put_chars,M,F,As}, Drv, From, Buf) -> - io_request({put_chars,latin1,M,F,As}, Drv, From, Buf); -io_request({get_chars,Prompt,N}, Drv, From, Buf) -> - io_request({get_chars,latin1,Prompt,N}, Drv, From, Buf); -io_request({get_line,Prompt}, Drv, From, Buf) -> - io_request({get_line,latin1,Prompt}, Drv, From, Buf); -io_request({get_until, Prompt,M,F,As}, Drv, From, Buf) -> - io_request({get_until,latin1, Prompt,M,F,As}, Drv, From, Buf); -io_request(get_password,Drv,From,Buf) -> - io_request({get_password,latin1},Drv,From,Buf); - - - -io_request(_, _Drv, _From, Buf) -> +io_request({put_chars,Chars}, Drv, Shell, From, Buf) -> + io_request({put_chars,latin1,Chars}, Drv, Shell, From, Buf); +io_request({put_chars,M,F,As}, Drv, Shell, From, Buf) -> + io_request({put_chars,latin1,M,F,As}, Drv, Shell, From, Buf); +io_request({get_chars,Prompt,N}, Drv, Shell, From, Buf) -> + io_request({get_chars,latin1,Prompt,N}, Drv, Shell, From, Buf); +io_request({get_line,Prompt}, Drv, Shell, From, Buf) -> + io_request({get_line,latin1,Prompt}, Drv, Shell, From, Buf); +io_request({get_until, Prompt,M,F,As}, Drv, Shell, From, Buf) -> + io_request({get_until,latin1, Prompt,M,F,As}, Drv, Shell, From, Buf); +io_request(get_password,Drv,Shell,From,Buf) -> + io_request({get_password,latin1},Drv,Shell,From,Buf); + + + +io_request(_, _Drv, _Shell, _From, Buf) -> {error,{error,request},Buf}. -%% Status = io_requests(RequestList, PrevStat, From, Drv) +%% Status = io_requests(RequestList, PrevStat, From, Drv, Shell) %% Process a list of output requests as long as %% the previous status is 'ok' or noreply. %% %% We use undefined as the From for all but the last request %% in order to discards acknowledgements from those requests. %% -io_requests([R|Rs], {noreply,Buf}, From, Drv) -> +io_requests([R|Rs], {noreply,Buf}, From, Drv, Shell) -> ReqFrom = if Rs =:= [] -> From; true -> undefined end, - io_requests(Rs, io_request(R, Drv, ReqFrom, Buf), From, Drv); -io_requests([R|Rs], {ok,ok,Buf}, From, Drv) -> + io_requests(Rs, io_request(R, Drv, Shell, ReqFrom, Buf), From, Drv, Shell); +io_requests([R|Rs], {ok,ok,Buf}, From, Drv, Shell) -> ReqFrom = if Rs =:= [] -> From; true -> undefined end, - io_requests(Rs, io_request(R, Drv, ReqFrom, Buf), From, Drv); -io_requests([_|_], Error, _From, _Drv) -> + io_requests(Rs, io_request(R, Drv, Shell, ReqFrom, Buf), From, Drv, Shell); +io_requests([_|_], Error, _From, _Drv, _Shell) -> Error; -io_requests([], Stat, _From, _) -> +io_requests([], Stat, _From, _, _Shell) -> Stat. %% io_reply(From, ReplyAs, Reply) @@ -333,7 +333,7 @@ io_requests([], Stat, _From, _) -> %% The ACK contains the return value. io_reply(undefined, _ReplyAs, _Reply) -> - %% Ignore these replies as they are generated from io_requests/4. + %% Ignore these replies as they are generated from io_requests/5. ok; io_reply(From, ReplyAs, Reply) -> From ! {io_reply,ReplyAs,Reply}, @@ -434,7 +434,7 @@ getopts(Drv,Buf) -> {ok,[Exp,Echo,Bin,Uni],Buf}. -%% get_chars(Prompt, Module, Function, XtraArgument, Drv, Buffer) +%% get_chars_*(Prompt, Module, Function, XtraArgument, Drv, Buffer) %% Gets characters from the input Drv until as the applied function %% returns {stop,Result,Rest}. Does not block output until input has been %% received. @@ -442,8 +442,8 @@ getopts(Drv,Buf) -> %% {Result,NewSaveBuffer} %% {error,What,NewSaveBuffer} -get_password_chars(Drv,Buf) -> - case get_password_line(Buf, Drv) of +get_password_chars(Drv,Shell,Buf) -> + case get_password_line(Buf, Drv, Shell) of {done, Line, Buf1} -> {ok, Line, Buf1}; interrupted -> @@ -452,36 +452,62 @@ get_password_chars(Drv,Buf) -> {exit, terminated} end. -get_chars(Prompt, M, F, Xa, Drv, Buf, Encoding) -> +get_chars_n(Prompt, M, F, Xa, Drv, Shell, Buf, Encoding) -> Pbs = prompt_bytes(Prompt, Encoding), - get_chars_loop(Pbs, M, F, Xa, Drv, Buf, start, Encoding). + case get(echo) of + true -> + get_chars_loop(Pbs, M, F, Xa, Drv, Shell, Buf, start, Encoding); + false -> + get_chars_n_loop(Pbs, M, F, Xa, Drv, Shell, Buf, start, Encoding) + end. + +get_chars_line(Prompt, M, F, Xa, Drv, Shell, Buf, Encoding) -> + Pbs = prompt_bytes(Prompt, Encoding), + get_chars_loop(Pbs, M, F, Xa, Drv, Shell, Buf, start, Encoding). -get_chars_loop(Pbs, M, F, Xa, Drv, Buf0, State, Encoding) -> - Result = case get(echo) of +get_chars_loop(Pbs, M, F, Xa, Drv, Shell, Buf0, State, Encoding) -> + Result = case get(echo) of true -> - get_line(Buf0, Pbs, Drv, Encoding); + get_line(Buf0, Pbs, Drv, Shell, Encoding); false -> % get_line_echo_off only deals with lists % and does not need encoding... - get_line_echo_off(Buf0, Pbs, Drv) + get_line_echo_off(Buf0, Pbs, Drv, Shell) end, case Result of - {done,Line,Buf1} -> - get_chars_apply(Pbs, M, F, Xa, Drv, Buf1, State, Line, Encoding); + {done,Line,Buf} -> + get_chars_apply(Pbs, M, F, Xa, Drv, Shell, Buf, State, Line, Encoding); interrupted -> {error,{error,interrupted},[]}; terminated -> {exit,terminated} end. -get_chars_apply(Pbs, M, F, Xa, Drv, Buf, State0, Line, Encoding) -> +get_chars_apply(Pbs, M, F, Xa, Drv, Shell, Buf, State0, Line, Encoding) -> case catch M:F(State0, cast(Line,get(read_mode), Encoding), Encoding, Xa) of - {stop,Result,Rest} -> - {ok,Result,append(Rest, Buf, Encoding)}; - {'EXIT',_} -> - {error,{error,err_func(M, F, Xa)},[]}; - State1 -> - get_chars_loop(Pbs, M, F, Xa, Drv, Buf, State1, Encoding) + {stop,Result,Rest} -> + {ok,Result,append(Rest, Buf, Encoding)}; + {'EXIT',_} -> + {error,{error,err_func(M, F, Xa)},[]}; + State1 -> + get_chars_loop(Pbs, M, F, Xa, Drv, Shell, Buf, State1, Encoding) + end. + +get_chars_n_loop(Pbs, M, F, Xa, Drv, Shell, Buf0, State, Encoding) -> + try M:F(State, cast(Buf0, get(read_mode), Encoding), Encoding, Xa) of + {stop,Result,Rest} -> + {ok, Result, Rest}; + State1 -> + case get_chars_echo_off(Pbs, Drv, Shell) of + interrupted -> + {error,{error,interrupted},[]}; + terminated -> + {exit,terminated}; + Buf -> + get_chars_n_loop(Pbs, M, F, Xa, Drv, Shell, Buf, State1, Encoding) + end + catch _:_ -> + {error,{error,err_func(M, F, Xa)},[]} end. %% Convert error code to make it look as before @@ -497,24 +523,24 @@ err_func(_, F, _) -> %% {done,LineChars,RestChars} %% interrupted -get_line(Chars, Pbs, Drv, Encoding) -> +get_line(Chars, Pbs, Drv, Shell, Encoding) -> {more_chars,Cont,Rs} = edlin:start(Pbs), send_drv_reqs(Drv, Rs), - get_line1(edlin:edit_line(Chars, Cont), Drv, new_stack(get(line_buffer)), + get_line1(edlin:edit_line(Chars, Cont), Drv, Shell, new_stack(get(line_buffer)), Encoding). -get_line1({done,Line,Rest,Rs}, Drv, Ls, _Encoding) -> +get_line1({done,Line,Rest,Rs}, Drv, _Shell, Ls, _Encoding) -> send_drv_reqs(Drv, Rs), save_line_buffer(Line, get_lines(Ls)), {done,Line,Rest}; -get_line1({undefined,{_A,Mode,Char},Cs,Cont,Rs}, Drv, Ls0, Encoding) +get_line1({undefined,{_A,Mode,Char},Cs,Cont,Rs}, Drv, Shell, Ls0, Encoding) when ((Mode =:= none) and (Char =:= $\^P)) or ((Mode =:= meta_left_sq_bracket) and (Char =:= $A)) -> send_drv_reqs(Drv, Rs), case up_stack(save_line(Ls0, edlin:current_line(Cont))) of {none,_Ls} -> send_drv(Drv, beep), - get_line1(edlin:edit_line(Cs, Cont), Drv, Ls0, Encoding); + get_line1(edlin:edit_line(Cs, Cont), Drv, Shell, Ls0, Encoding); {Lcs,Ls} -> send_drv_reqs(Drv, edlin:erase_line(Cont)), {more_chars,Ncont,Nrs} = edlin:start(edlin:prompt(Cont)), @@ -522,16 +548,17 @@ get_line1({undefined,{_A,Mode,Char},Cs,Cont,Rs}, Drv, Ls0, Encoding) get_line1(edlin:edit_line1(lists:sublist(Lcs, 1, length(Lcs)-1), Ncont), Drv, + Shell, Ls, Encoding) end; -get_line1({undefined,{_A,Mode,Char},Cs,Cont,Rs}, Drv, Ls0, Encoding) +get_line1({undefined,{_A,Mode,Char},Cs,Cont,Rs}, Drv, Shell, Ls0, Encoding) when ((Mode =:= none) and (Char =:= $\^N)) or ((Mode =:= meta_left_sq_bracket) and (Char =:= $B)) -> send_drv_reqs(Drv, Rs), case down_stack(save_line(Ls0, edlin:current_line(Cont))) of {none,_Ls} -> send_drv(Drv, beep), - get_line1(edlin:edit_line(Cs, Cont), Drv, Ls0, Encoding); + get_line1(edlin:edit_line(Cs, Cont), Drv, Shell, Ls0, Encoding); {Lcs,Ls} -> send_drv_reqs(Drv, edlin:erase_line(Cont)), {more_chars,Ncont,Nrs} = edlin:start(edlin:prompt(Cont)), @@ -539,6 +566,7 @@ get_line1({undefined,{_A,Mode,Char},Cs,Cont,Rs}, Drv, Ls0, Encoding) get_line1(edlin:edit_line1(lists:sublist(Lcs, 1, length(Lcs)-1), Ncont), Drv, + Shell, Ls, Encoding) end; %% ^R = backward search, ^S = forward search. @@ -551,7 +579,7 @@ get_line1({undefined,{_A,Mode,Char},Cs,Cont,Rs}, Drv, Ls0, Encoding) %% new modes: search, search_quit, search_found. These are added to %% the regular ones (none, meta_left_sq_bracket) and handle special %% cases of history search. -get_line1({undefined,{_A,Mode,Char},Cs,Cont,Rs}, Drv, Ls, Encoding) +get_line1({undefined,{_A,Mode,Char},Cs,Cont,Rs}, Drv, Shell, Ls, Encoding) when ((Mode =:= none) and (Char =:= $\^R)) -> send_drv_reqs(Drv, Rs), %% drop current line, move to search mode. We store the current @@ -561,8 +589,8 @@ get_line1({undefined,{_A,Mode,Char},Cs,Cont,Rs}, Drv, Ls, Encoding) Pbs = prompt_bytes("(search)`': ", Encoding), {more_chars,Ncont,Nrs} = edlin:start(Pbs, search), send_drv_reqs(Drv, Nrs), - get_line1(edlin:edit_line1(Cs, Ncont), Drv, Ls, Encoding); -get_line1({expand, Before, Cs0, Cont,Rs}, Drv, Ls0, Encoding) -> + get_line1(edlin:edit_line1(Cs, Ncont), Drv, Shell, Ls, Encoding); +get_line1({expand, Before, Cs0, Cont,Rs}, Drv, Shell, Ls0, Encoding) -> send_drv_reqs(Drv, Rs), ExpandFun = get(expand_fun), {Found, Add, Matches} = ExpandFun(Before), @@ -577,37 +605,37 @@ get_line1({expand, Before, Cs0, Cont,Rs}, Drv, Ls0, Encoding) -> send_drv(Drv, {put_chars, unicode, unicode:characters_to_binary(MatchStr,unicode)}), [$\^L | Cs1] end, - get_line1(edlin:edit_line(Cs, Cont), Drv, Ls0, Encoding); -get_line1({undefined,_Char,Cs,Cont,Rs}, Drv, Ls, Encoding) -> + get_line1(edlin:edit_line(Cs, Cont), Drv, Shell, Ls0, Encoding); +get_line1({undefined,_Char,Cs,Cont,Rs}, Drv, Shell, Ls, Encoding) -> send_drv_reqs(Drv, Rs), send_drv(Drv, beep), - get_line1(edlin:edit_line(Cs, Cont), Drv, Ls, Encoding); + get_line1(edlin:edit_line(Cs, Cont), Drv, Shell, Ls, Encoding); %% The search item was found and accepted (new line entered on the exact %% result found) -get_line1({_What,Cont={line,_Prompt,_Chars,search_found},Rs}, Drv, Ls0, Encoding) -> +get_line1({_What,Cont={line,_Prompt,_Chars,search_found},Rs}, Drv, Shell, Ls0, Encoding) -> Line = edlin:current_line(Cont), %% this may create duplicate entries. Ls = save_line(new_stack(get_lines(Ls0)), Line), - get_line1({done, Line, "", Rs}, Drv, Ls, Encoding); + get_line1({done, Line, "", Rs}, Drv, Shell, Ls, Encoding); %% The search mode has been exited, but the user wants to remain in line %% editing mode wherever that was, but editing the search result. -get_line1({What,Cont={line,_Prompt,_Chars,search_quit},Rs}, Drv, Ls, Encoding) -> +get_line1({What,Cont={line,_Prompt,_Chars,search_quit},Rs}, Drv, Shell, Ls, Encoding) -> Line = edlin:current_chars(Cont), %% Load back the old prompt with the correct line number. case get(search_quit_prompt) of undefined -> % should not happen. Fallback. LsFallback = save_line(new_stack(get_lines(Ls)), Line), - get_line1({done, "\n", Line, Rs}, Drv, LsFallback, Encoding); + get_line1({done, "\n", Line, Rs}, Drv, Shell, LsFallback, Encoding); Prompt -> % redraw the line and keep going with the same stack position NCont = {line,Prompt,{lists:reverse(Line),[]},none}, send_drv_reqs(Drv, Rs), send_drv_reqs(Drv, edlin:erase_line(Cont)), send_drv_reqs(Drv, edlin:redraw_line(NCont)), - get_line1({What, NCont ,[]}, Drv, pad_stack(Ls), Encoding) + get_line1({What, NCont ,[]}, Drv, Shell, pad_stack(Ls), Encoding) end; %% Search mode is entered. get_line1({What,{line,Prompt,{RevCmd0,_Aft},search},Rs}, - Drv, Ls0, Encoding) -> + Drv, Shell, Ls0, Encoding) -> send_drv_reqs(Drv, Rs), %% Figure out search direction. ^S and ^R are returned through edlin %% whenever we received a search while being already in search mode. @@ -629,61 +657,90 @@ get_line1({What,{line,Prompt,{RevCmd0,_Aft},search},Rs}, {Ls2, {RevCmd, "': "++Line}} end, Cont = {line,Prompt,NewStack,search}, - more_data(What, Cont, Drv, Ls, Encoding); -get_line1({What,Cont0,Rs}, Drv, Ls, Encoding) -> + more_data(What, Cont, Drv, Shell, Ls, Encoding); +get_line1({What,Cont0,Rs}, Drv, Shell, Ls, Encoding) -> send_drv_reqs(Drv, Rs), - more_data(What, Cont0, Drv, Ls, Encoding). + more_data(What, Cont0, Drv, Shell, Ls, Encoding). -more_data(What, Cont0, Drv, Ls, Encoding) -> +more_data(What, Cont0, Drv, Shell, Ls, Encoding) -> receive {Drv,{data,Cs}} -> - get_line1(edlin:edit_line(Cs, Cont0), Drv, Ls, Encoding); + get_line1(edlin:edit_line(Cs, Cont0), Drv, Shell, Ls, Encoding); {Drv,eof} -> - get_line1(edlin:edit_line(eof, Cont0), Drv, Ls, Encoding); + get_line1(edlin:edit_line(eof, Cont0), Drv, Shell, Ls, Encoding); {io_request,From,ReplyAs,Req} when is_pid(From) -> {more_chars,Cont,_More} = edlin:edit_line([], Cont0), send_drv_reqs(Drv, edlin:erase_line(Cont)), - io_request(Req, From, ReplyAs, Drv, []), %WRONG!!! + io_request(Req, From, ReplyAs, Drv, Shell, []), %WRONG!!! send_drv_reqs(Drv, edlin:redraw_line(Cont)), - get_line1({more_chars,Cont,[]}, Drv, Ls, Encoding); + get_line1({more_chars,Cont,[]}, Drv, Shell, Ls, Encoding); {reply,{{From,ReplyAs},Reply}} -> %% We take care of replies from puts here as well io_reply(From, ReplyAs, Reply), - more_data(What, Cont0, Drv, Ls, Encoding); + more_data(What, Cont0, Drv, Shell, Ls, Encoding); {'EXIT',Drv,interrupt} -> interrupted; {'EXIT',Drv,_} -> - terminated + terminated; + {'EXIT',Shell,R} -> + exit(R) after get_line_timeout(What)-> - get_line1(edlin:edit_line([], Cont0), Drv, Ls, Encoding) + get_line1(edlin:edit_line([], Cont0), Drv, Shell, Ls, Encoding) end. -get_line_echo_off(Chars, Pbs, Drv) -> +get_line_echo_off(Chars, Pbs, Drv, Shell) -> send_drv_reqs(Drv, [{put_chars, unicode,Pbs}]), - get_line_echo_off1(edit_line(Chars,[]), Drv). + get_line_echo_off1(edit_line(Chars,[]), Drv, Shell). -get_line_echo_off1({Chars,[]}, Drv) -> +get_line_echo_off1({Chars,[]}, Drv, Shell) -> receive {Drv,{data,Cs}} -> - get_line_echo_off1(edit_line(Cs, Chars), Drv); + get_line_echo_off1(edit_line(Cs, Chars), Drv, Shell); {Drv,eof} -> - get_line_echo_off1(edit_line(eof, Chars), Drv); + get_line_echo_off1(edit_line(eof, Chars), Drv, Shell); {io_request,From,ReplyAs,Req} when is_pid(From) -> - io_request(Req, From, ReplyAs, Drv, []), - get_line_echo_off1({Chars,[]}, Drv); + io_request(Req, From, ReplyAs, Drv, Shell, []), + get_line_echo_off1({Chars,[]}, Drv, Shell); {reply,{{From,ReplyAs},Reply}} when From =/= undefined -> %% We take care of replies from puts here as well io_reply(From, ReplyAs, Reply), - get_line_echo_off1({Chars,[]},Drv); + get_line_echo_off1({Chars,[]},Drv, Shell); {'EXIT',Drv,interrupt} -> interrupted; {'EXIT',Drv,_} -> - terminated + terminated; + {'EXIT',Shell,R} -> + exit(R) end; -get_line_echo_off1({Chars,Rest}, _Drv) -> +get_line_echo_off1({Chars,Rest}, _Drv, _Shell) -> {done,lists:reverse(Chars),case Rest of done -> []; _ -> Rest end}. +get_chars_echo_off(Pbs, Drv, Shell) -> + send_drv_reqs(Drv, [{put_chars, unicode,Pbs}]), + get_chars_echo_off1(Drv, Shell). + +get_chars_echo_off1(Drv, Shell) -> + receive + {Drv, {data, Cs}} -> + Cs; + {Drv, eof} -> + eof; + {io_request,From,ReplyAs,Req} when is_pid(From) -> + io_request(Req, From, ReplyAs, Drv, Shell, []), + get_chars_echo_off1(Drv, Shell); + {reply,{{From,ReplyAs},Reply}} when From =/= undefined -> + %% We take care of replies from puts here as well + io_reply(From, ReplyAs, Reply), + get_chars_echo_off1(Drv, Shell); + {'EXIT',Drv,interrupt} -> + interrupted; + {'EXIT',Drv,_} -> + terminated; + {'EXIT',Shell,R} -> + exit(R) + end. + %% We support line editing for the ICANON mode except the following %% line editing characters, which already has another meaning in %% echo-on mode (See Advanced Programming in the Unix Environment, 2nd ed, @@ -793,9 +850,9 @@ search_up_stack(Stack, Substr) -> case up_stack(Stack) of {none,NewStack} -> {none,NewStack}; {L, NewStack} -> - case string:str(L, Substr) of - 0 -> search_up_stack(NewStack, Substr); - _ -> {string:strip(L,right,$\n), NewStack} + case string:find(L, Substr) of + nomatch -> search_up_stack(NewStack, Substr); + _ -> {string:trim(L, trailing, "$\n"), NewStack} end end. @@ -803,39 +860,41 @@ search_down_stack(Stack, Substr) -> case down_stack(Stack) of {none,NewStack} -> {none,NewStack}; {L, NewStack} -> - case string:str(L, Substr) of - 0 -> search_down_stack(NewStack, Substr); - _ -> {string:strip(L,right,$\n), NewStack} + case string:find(L, Substr) of + nomatch -> search_down_stack(NewStack, Substr); + _ -> {string:trim(L, trailing, "$\n"), NewStack} end end. %% This is get_line without line editing (except for backspace) and %% without echo. -get_password_line(Chars, Drv) -> - get_password1(edit_password(Chars,[]),Drv). +get_password_line(Chars, Drv, Shell) -> + get_password1(edit_password(Chars,[]),Drv,Shell). -get_password1({Chars,[]}, Drv) -> +get_password1({Chars,[]}, Drv, Shell) -> receive {Drv,{data,Cs}} -> - get_password1(edit_password(Cs,Chars),Drv); + get_password1(edit_password(Cs,Chars),Drv,Shell); {io_request,From,ReplyAs,Req} when is_pid(From) -> %send_drv_reqs(Drv, [{delete_chars, -length(Pbs)}]), - io_request(Req, From, ReplyAs, Drv, []), %WRONG!!! + io_request(Req, From, ReplyAs, Drv, Shell, []), %WRONG!!! %% I guess the reason the above line is wrong is that Buf is %% set to []. But do we expect anything but plain output? - get_password1({Chars, []}, Drv); + get_password1({Chars, []}, Drv, Shell); {reply,{{From,ReplyAs},Reply}} -> %% We take care of replies from puts here as well io_reply(From, ReplyAs, Reply), - get_password1({Chars, []},Drv); + get_password1({Chars, []},Drv, Shell); {'EXIT',Drv,interrupt} -> interrupted; {'EXIT',Drv,_} -> - terminated + terminated; + {'EXIT',Shell,R} -> + exit(R) end; -get_password1({Chars,Rest},Drv) -> +get_password1({Chars,Rest},Drv,_Shell) -> send_drv_reqs(Drv,[{put_chars, unicode, "\n"}]), {done,lists:reverse(Chars),case Rest of done -> []; _ -> Rest end}. diff --git a/lib/kernel/src/hipe_unified_loader.erl b/lib/kernel/src/hipe_unified_loader.erl index f8199fcf71..5704cc79c2 100644 --- a/lib/kernel/src/hipe_unified_loader.erl +++ b/lib/kernel/src/hipe_unified_loader.erl @@ -275,6 +275,7 @@ needs_trampolines(Architecture) -> arm -> true; powerpc -> true; ppc64 -> true; + amd64 -> true; _ -> false end. @@ -452,7 +453,7 @@ make_beam_stub(Mod, LoaderState, MD5, Beam, FunDefs, ClosuresToPatch) -> %%======================================================================== %% Patching %% @spec patch(refs(), BaseAddress::integer(), ConstAndZone::term(), -%% FunDefs::term(), TrampolineMap::term()) -> 'ok'. +%% FunDefs::term(), TrampolineMap::term()) -> 'ok' %% @type refs()=[{RefType::integer(), Reflist::reflist()} | refs()] %% %% @type reflist()= [{Data::term(), Offsets::offests()}|reflist()] diff --git a/lib/kernel/src/inet.erl b/lib/kernel/src/inet.erl index dc20c21c77..9f22eb6aaa 100644 --- a/lib/kernel/src/inet.erl +++ b/lib/kernel/src/inet.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2017. All Rights Reserved. +%% Copyright Ericsson AB 1997-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -34,7 +34,8 @@ ip/1, stats/0, options/0, pushf/3, popf/1, close/1, gethostname/0, gethostname/1, parse_ipv4_address/1, parse_ipv6_address/1, parse_ipv4strict_address/1, - parse_ipv6strict_address/1, parse_address/1, parse_strict_address/1, ntoa/1]). + parse_ipv6strict_address/1, parse_address/1, parse_strict_address/1, + ntoa/1, ipv4_mapped_ipv6_address/1]). -export([connect_options/2, listen_options/2, udp_options/2, sctp_options/2]). -export([udp_module/1, tcp_module/1, tcp_module/2, sctp_module/1]). @@ -72,10 +73,10 @@ %% timer interface -export([start_timer/1, timeout/1, timeout/2, stop_timer/1]). --export_type([address_family/0, hostent/0, hostname/0, ip4_address/0, +-export_type([address_family/0, socket_protocol/0, hostent/0, hostname/0, ip4_address/0, ip6_address/0, ip_address/0, port_number/0, local_address/0, socket_address/0, returned_non_ip_address/0, - socket_setopt/0, socket_getopt/0, + socket_setopt/0, socket_getopt/0, ancillary_data/0, posix/0, socket/0, stat_option/0]). %% imports -import(lists, [append/1, duplicate/2, filter/2, foldl/3]). @@ -104,7 +105,20 @@ {local, binary()} | {unspec, <<>>} | {undefined, any()}. --type posix() :: exbadport | exbadseq | file:posix(). +-type posix() :: + 'eaddrinuse' | 'eaddrnotavail' | 'eafnosupport' | 'ealready' | + 'econnaborted' | 'econnrefused' | 'econnreset' | + 'edestaddrreq' | + 'ehostdown' | 'ehostunreach' | + 'einprogress' | 'eisconn' | + 'emsgsize' | + 'enetdown' | 'enetunreach' | + 'enopkg' | 'enoprotoopt' | 'enotconn' | 'enotty' | 'enotsock' | + 'eproto' | 'eprotonosupport' | 'eprototype' | + 'esocktnosupport' | + 'etimedout' | + 'ewouldblock' | + 'exbadport' | 'exbadseq' | file:posix(). -type socket() :: port(). -type socket_setopt() :: @@ -140,6 +154,15 @@ 'running' | 'multicast' | 'loopback']} | {'hwaddr', ether_address()}. +-type getifaddrs_ifopts() :: + [Ifopt :: {flags, Flags :: [up | broadcast | loopback | + pointtopoint | running | multicast]} | + {addr, Addr :: ip_address()} | + {netmask, Netmask :: ip_address()} | + {broadaddr, Broadaddr :: ip_address()} | + {dstaddr, Dstaddr :: ip_address()} | + {hwaddr, Hwaddr :: [byte()]}]. + -type address_family() :: 'inet' | 'inet6' | 'local'. -type socket_protocol() :: 'tcp' | 'udp' | 'sctp'. -type socket_type() :: 'stream' | 'dgram' | 'seqpacket'. @@ -149,6 +172,9 @@ 'recv_cnt' | 'recv_max' | 'recv_avg' | 'recv_oct' | 'recv_dvi' | 'send_cnt' | 'send_max' | 'send_avg' | 'send_oct' | 'send_pend'. +-type ancillary_data() :: + [ {'tos', byte()} | {'tclass', byte()} | {'ttl', byte()} ]. + %%% --------------------------------- -spec get_rc() -> [{Par :: atom(), Val :: any()} | @@ -288,7 +314,7 @@ setopts(Socket, Opts) -> {'ok', OptionValues} | {'error', posix()} when Socket :: socket(), Options :: [socket_getopt()], - OptionValues :: [socket_setopt()]. + OptionValues :: [socket_setopt() | gen_tcp:pktoptions_value()]. getopts(Socket, Opts) -> case prim_inet:getopts(Socket, Opts) of @@ -304,32 +330,32 @@ getopts(Socket, Opts) -> Other end. --spec getifaddrs(Socket :: socket()) -> - {'ok', [string()]} | {'error', posix()}. - +-spec getifaddrs( + [Option :: {netns, Namespace :: file:filename_all()}] + | socket()) -> + {'ok', [{Ifname :: string(), + Ifopts :: getifaddrs_ifopts()}]} + | {'error', posix()}. +getifaddrs(Opts) when is_list(Opts) -> + withsocket(fun(S) -> prim_inet:getifaddrs(S) end, Opts); getifaddrs(Socket) -> prim_inet:getifaddrs(Socket). --spec getifaddrs() -> {ok, Iflist} | {error, posix()} when - Iflist :: [{Ifname,[Ifopt]}], - Ifname :: string(), - Ifopt :: {flags,[Flag]} | {addr,Addr} | {netmask,Netmask} - | {broadaddr,Broadaddr} | {dstaddr,Dstaddr} - | {hwaddr,Hwaddr}, - Flag :: up | broadcast | loopback | pointtopoint - | running | multicast, - Addr :: ip_address(), - Netmask :: ip_address(), - Broadaddr :: ip_address(), - Dstaddr :: ip_address(), - Hwaddr :: [byte()]. - +-spec getifaddrs() -> + {'ok', [{Ifname :: string(), + Ifopts :: getifaddrs_ifopts()}]} + | {'error', posix()}. getifaddrs() -> withsocket(fun(S) -> prim_inet:getifaddrs(S) end). --spec getiflist(Socket :: socket()) -> - {'ok', [string()]} | {'error', posix()}. +-spec getiflist( + [Option :: {netns, Namespace :: file:filename_all()}] + | socket()) -> + {'ok', [string()]} | {'error', posix()}. + +getiflist(Opts) when is_list(Opts) -> + withsocket(fun(S) -> prim_inet:getiflist(S) end, Opts); getiflist(Socket) -> prim_inet:getiflist(Socket). @@ -346,11 +372,19 @@ getiflist() -> ifget(Socket, Name, Opts) -> prim_inet:ifget(Socket, Name, Opts). --spec ifget(Name :: string() | atom(), Opts :: [if_getopt()]) -> +-spec ifget( + Name :: string() | atom(), + Opts :: [if_getopt() | + {netns, Namespace :: file:filename_all()}]) -> {'ok', [if_getopt_result()]} | {'error', posix()}. ifget(Name, Opts) -> - withsocket(fun(S) -> prim_inet:ifget(S, Name, Opts) end). + {NSOpts,IFOpts} = + lists:partition( + fun ({netns,_}) -> true; + (_) -> false + end, Opts), + withsocket(fun(S) -> prim_inet:ifget(S, Name, IFOpts) end, NSOpts). -spec ifset(Socket :: socket(), Name :: string() | atom(), @@ -360,11 +394,19 @@ ifget(Name, Opts) -> ifset(Socket, Name, Opts) -> prim_inet:ifset(Socket, Name, Opts). --spec ifset(Name :: string() | atom(), Opts :: [if_setopt()]) -> +-spec ifset( + Name :: string() | atom(), + Opts :: [if_setopt() | + {netns, Namespace :: file:filename_all()}]) -> 'ok' | {'error', posix()}. ifset(Name, Opts) -> - withsocket(fun(S) -> prim_inet:ifset(S, Name, Opts) end). + {NSOpts,IFOpts} = + lists:partition( + fun ({netns,_}) -> true; + (_) -> false + end, Opts), + withsocket(fun(S) -> prim_inet:ifset(S, Name, IFOpts) end, NSOpts). -spec getif() -> {'ok', [{ip_address(), ip_address() | 'undefined', ip_address()}]} | @@ -374,10 +416,14 @@ getif() -> withsocket(fun(S) -> getif(S) end). %% backwards compatible getif --spec getif(Socket :: socket()) -> +-spec getif( + [Option :: {netns, Namespace :: file:filename_all()}] + | socket()) -> {'ok', [{ip_address(), ip_address() | 'undefined', ip_address()}]} | {'error', posix()}. +getif(Opts) when is_list(Opts) -> + withsocket(fun(S) -> getif(S) end, Opts); getif(Socket) -> case prim_inet:getiflist(Socket) of {ok, IfList} -> @@ -398,7 +444,10 @@ getif(Socket) -> end. withsocket(Fun) -> - case inet_udp:open(0,[]) of + withsocket(Fun, []). +%% +withsocket(Fun, Opts) -> + case inet_udp:open(0, Opts) of {ok,Socket} -> Res = Fun(Socket), inet_udp:close(Socket), @@ -675,6 +724,14 @@ parse_address(Addr) -> parse_strict_address(Addr) -> inet_parse:strict_address(Addr). +-spec ipv4_mapped_ipv6_address(ip_address()) -> ip_address(). +ipv4_mapped_ipv6_address({D1,D2,D3,D4}) + when (D1 bor D2 bor D3 bor D4) < 256 -> + {0,0,0,0,0,16#ffff,(D1 bsl 8) bor D2,(D3 bsl 8) bor D4}; +ipv4_mapped_ipv6_address({D1,D2,D3,D4,D5,D6,D7,D8}) + when (D1 bor D2 bor D3 bor D4 bor D5 bor D6 bor D7 bor D8) < 65536 -> + {D7 bsr 8,D7 band 255,D8 bsr 8,D8 band 255}. + %% Return a list of available options options() -> [ @@ -700,6 +757,7 @@ stats() -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% connect_options() -> [tos, tclass, priority, reuseaddr, keepalive, linger, sndbuf, recbuf, nodelay, + recvtos, recvtclass, ttl, recvttl, header, active, packet, packet_size, buffer, mode, deliver, line_delimiter, exit_on_close, high_watermark, low_watermark, high_msgq_watermark, low_msgq_watermark, send_timeout, send_timeout_close, delay_send, raw, @@ -768,6 +826,7 @@ con_add(Name, Val, #connect_opts{} = R, Opts, AllOpts) -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% listen_options() -> [tos, tclass, priority, reuseaddr, keepalive, linger, sndbuf, recbuf, nodelay, + recvtos, recvtclass, ttl, recvttl, header, active, packet, buffer, mode, deliver, backlog, ipv6_v6only, exit_on_close, high_watermark, low_watermark, high_msgq_watermark, low_msgq_watermark, send_timeout, send_timeout_close, delay_send, @@ -848,7 +907,7 @@ tcp_module_1(Opts, Address) -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% udp_options() -> [tos, tclass, priority, reuseaddr, sndbuf, recbuf, header, active, buffer, mode, - deliver, ipv6_v6only, + recvtos, recvtclass, ttl, recvttl, deliver, ipv6_v6only, broadcast, dontroute, multicast_if, multicast_ttl, multicast_loop, add_membership, drop_membership, read_packets,raw, high_msgq_watermark, low_msgq_watermark, bind_to_device]. @@ -918,8 +977,10 @@ udp_module(Opts) -> % (*) passing of open FDs ("fdopen") is not supported. sctp_options() -> [ % The following are generic inet options supported for SCTP sockets: - mode, active, buffer, tos, tclass, priority, dontroute, reuseaddr, linger, sndbuf, - recbuf, ipv6_v6only, high_msgq_watermark, low_msgq_watermark, + mode, active, buffer, tos, tclass, ttl, + priority, dontroute, reuseaddr, linger, + recvtos, recvtclass, recvttl, + sndbuf, recbuf, ipv6_v6only, high_msgq_watermark, low_msgq_watermark, bind_to_device, % Other options are SCTP-specific (though they may be similar to their @@ -1244,9 +1305,7 @@ gethostbyname_string(Name, Type) inet -> inet_parse:ipv4_address(Name); inet6 -> - %% XXX should we really translate IPv4 addresses here - %% even if we do not know if this host can do IPv6? - inet_parse:ipv6_address(Name) + inet_parse:ipv6strict_address(Name) end of {ok,IP} -> {ok,make_hostent(Name, [IP], [], Type)}; @@ -1452,11 +1511,14 @@ fdopen(Fd, Addr, Port, Opts, Protocol, Family, Type, Module) -> %% socket stat %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +-spec i() -> ok. i() -> i(tcp), i(udp), i(sctp). +-spec i(socket_protocol()) -> ok. i(Proto) -> i(Proto, [port, module, recv, sent, owner, local_address, foreign_address, state, type]). +-spec i(socket_protocol(), [atom()]) -> ok. i(tcp, Fs) -> ii(tcp_sockets(), Fs, tcp); i(udp, Fs) -> diff --git a/lib/kernel/src/inet6_tcp.erl b/lib/kernel/src/inet6_tcp.erl index a0d5d3df70..347b8b9a1b 100644 --- a/lib/kernel/src/inet6_tcp.erl +++ b/lib/kernel/src/inet6_tcp.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2016. All Rights Reserved. +%% Copyright Ericsson AB 1997-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -167,7 +167,7 @@ listen(Port, Opts) -> %% Accept %% accept(L) -> - case prim_inet:accept(L) of + case prim_inet:accept(L, accept_family_opts()) of {ok, S} -> inet_db:register_socket(S, ?MODULE), {ok,S}; @@ -175,13 +175,15 @@ accept(L) -> end. accept(L, Timeout) -> - case prim_inet:accept(L, Timeout) of + case prim_inet:accept(L, Timeout, accept_family_opts()) of {ok, S} -> inet_db:register_socket(S, ?MODULE), {ok,S}; Error -> Error end. +accept_family_opts() -> [tclass, recvtclass]. + %% %% Create a port/socket from a file descriptor %% diff --git a/lib/kernel/src/inet_config.erl b/lib/kernel/src/inet_config.erl index 4bbc520449..9f76360b8b 100644 --- a/lib/kernel/src/inet_config.erl +++ b/lib/kernel/src/inet_config.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2016. All Rights Reserved. +%% Copyright Ericsson AB 1997-2017. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -369,7 +369,7 @@ win32_load1(Reg,Type,HFileKey) -> end. win32_split_line(Line,nt) -> inet_parse:split_line(Line); -win32_split_line(Line,windows) -> string:tokens(Line, ","). +win32_split_line(Line,windows) -> string:lexemes(Line, ","). win32_get_strings(Reg, Names) -> win32_get_strings(Reg, Names, []). diff --git a/lib/kernel/src/inet_db.erl b/lib/kernel/src/inet_db.erl index 6cbb6ac2da..3f5a2ea5ee 100644 --- a/lib/kernel/src/inet_db.erl +++ b/lib/kernel/src/inet_db.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2016. All Rights Reserved. +%% Copyright Ericsson AB 1997-2019. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -1223,7 +1223,10 @@ handle_set_file(Option, Fname, TagTm, TagInfo, ParseFun, From, {ok, B, _} -> B; _ -> <<>> end; - _ -> <<>> + _ -> + ets:insert(Db, {TagInfo, undefined}), + TimeZero = - (?RES_FILE_UPDATE_TM + 1), % Early enough + ets:insert(Db, {TagTm, TimeZero}) end, handle_set_file(ParseFun, Bin, From, State); false -> {reply,error,State} diff --git a/lib/kernel/src/inet_dns.erl b/lib/kernel/src/inet_dns.erl index d5f982cc51..f1f58bc872 100644 --- a/lib/kernel/src/inet_dns.erl +++ b/lib/kernel/src/inet_dns.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2016. All Rights Reserved. +%% Copyright Ericsson AB 1997-2017. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -29,7 +29,7 @@ -export([decode/1, encode/1]). --import(lists, [reverse/1, reverse/2, nthtail/2]). +-import(lists, [reverse/1]). -include("inet_int.hrl"). -include("inet_dns.hrl"). @@ -473,7 +473,7 @@ decode_data(<<Order:16,Preference:16,Data0/binary>>, _, ?S_NAPTR, Buffer) -> {Data2,Services} = decode_string(Data1), {Data,Regexp} = decode_characters(Data2, utf8), Replacement = decode_domain(Data, Buffer), - {Order,Preference,string:to_lower(Flags),string:to_lower(Services), + {Order,Preference,string:lowercase(Flags),string:lowercase(Services), Regexp,Replacement}; %% ?S_OPT falls through to default decode_data(Data, _, ?S_TXT, _) -> diff --git a/lib/kernel/src/inet_hosts.erl b/lib/kernel/src/inet_hosts.erl index 0bdf00ac30..fc653bf0d3 100644 --- a/lib/kernel/src/inet_hosts.erl +++ b/lib/kernel/src/inet_hosts.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2016. All Rights Reserved. +%% Copyright Ericsson AB 1997-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -72,9 +72,6 @@ gethostbyname(Name, Type, Byname, Byaddr) -> gethostbyaddr({A,B,C,D}=IP) when ?ip(A,B,C,D) -> gethostbyaddr(IP, inet); -%% ipv4 only ipv6 address -gethostbyaddr({0,0,0,0,0,16#ffff=F,G,H}) when ?ip6(0,0,0,0,0,F,G,H) -> - gethostbyaddr({G bsr 8, G band 255, H bsr 8, H band 255}); gethostbyaddr({A,B,C,D,E,F,G,H}=IP) when ?ip6(A,B,C,D,E,F,G,H) -> gethostbyaddr(IP, inet6); gethostbyaddr(Addr) when is_list(Addr) -> diff --git a/lib/kernel/src/inet_int.hrl b/lib/kernel/src/inet_int.hrl index bc5b67f7bf..f6525d7261 100644 --- a/lib/kernel/src/inet_int.hrl +++ b/lib/kernel/src/inet_int.hrl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2017. All Rights Reserved. +%% Copyright Ericsson AB 1997-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -100,6 +100,8 @@ -define(TCP_REQ_RECV, 42). -define(TCP_REQ_UNRECV, 43). -define(TCP_REQ_SHUTDOWN, 44). +-define(TCP_REQ_SENDFILE, 45). + %% UDP and SCTP requests -define(PACKET_REQ_RECV, 60). %%-define(SCTP_REQ_LISTEN, 61). MERGED @@ -155,6 +157,12 @@ -define(INET_LOPT_LINE_DELIM, 40). -define(INET_OPT_TCLASS, 41). -define(INET_OPT_BIND_TO_DEVICE, 42). +-define(INET_OPT_RECVTOS, 43). +-define(INET_OPT_RECVTCLASS, 44). +-define(INET_OPT_PKTOPTIONS, 45). +-define(INET_OPT_TTL, 46). +-define(INET_OPT_RECVTTL, 47). +-define(TCP_OPT_NOPUSH, 48). % Specific SCTP options: separate range: -define(SCTP_OPT_RTOINFO, 100). -define(SCTP_OPT_ASSOCINFO, 101). @@ -319,6 +327,12 @@ [((X) bsr 24) band 16#ff, ((X) bsr 16) band 16#ff, ((X) bsr 8) band 16#ff, (X) band 16#ff]). +-define(int64(X), + [((X) bsr 56) band 16#ff, ((X) bsr 48) band 16#ff, + ((X) bsr 40) band 16#ff, ((X) bsr 32) band 16#ff, + ((X) bsr 24) band 16#ff, ((X) bsr 16) band 16#ff, + ((X) bsr 8) band 16#ff, (X) band 16#ff]). + -define(intAID(X), % For SCTP AssocID ?int32(X)). diff --git a/lib/kernel/src/inet_parse.erl b/lib/kernel/src/inet_parse.erl index 29804dc50b..e9685c6554 100644 --- a/lib/kernel/src/inet_parse.erl +++ b/lib/kernel/src/inet_parse.erl @@ -95,7 +95,7 @@ hosts(Fname,File) -> %% interface with a %if suffix. These kind of %% addresses maybe need to be gracefully handled %% throughout inet* and inet_drv. - case string:tokens(Address, "%") of + case string:lexemes(Address, "%") of [Addr,_] -> {ok,_} = address(Addr), skip; @@ -407,7 +407,7 @@ is_dom1([C | Cs]) when C >= $a, C =< $z -> is_dom_ldh(Cs); is_dom1([C | Cs]) when C >= $A, C =< $Z -> is_dom_ldh(Cs); is_dom1([C | Cs]) when C >= $0, C =< $9 -> case is_dom_ldh(Cs) of - true -> is_dom2(string:tokens([C | Cs],".")); + true -> is_dom2(string:lexemes([C | Cs],".")); false -> false end; is_dom1(_) -> false. diff --git a/lib/kernel/src/inet_res.erl b/lib/kernel/src/inet_res.erl index 90e49ddfdf..6454802b04 100644 --- a/lib/kernel/src/inet_res.erl +++ b/lib/kernel/src/inet_res.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2016. All Rights Reserved. +%% Copyright Ericsson AB 1997-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -349,9 +349,6 @@ gethostbyaddr_tm({A,B,C,D} = IP, Timer) when ?ip(A,B,C,D) -> {ok, HEnt} -> {ok, HEnt}; _ -> res_gethostbyaddr(dn_in_addr_arpa(A,B,C,D), IP, Timer) end; -%% ipv4 only ipv6 address -gethostbyaddr_tm({0,0,0,0,0,16#ffff,G,H},Timer) when is_integer(G+H) -> - gethostbyaddr_tm({G div 256, G rem 256, H div 256, H rem 256},Timer); gethostbyaddr_tm({A,B,C,D,E,F,G,H} = IP, Timer) when ?ip6(A,B,C,D,E,F,G,H) -> inet_db:res_update_conf(), case inet_db:gethostbyaddr(IP) of @@ -431,28 +428,7 @@ gethostbyname(Name,Family,Timeout) -> gethostbyname_tm(Name,inet,Timer) -> getbyname_tm(Name,?S_A,Timer); gethostbyname_tm(Name,inet6,Timer) -> - case getbyname_tm(Name,?S_AAAA,Timer) of - {ok,HEnt} -> {ok,HEnt}; - {error,nxdomain} -> - case getbyname_tm(Name, ?S_A,Timer) of - {ok, HEnt} -> - %% rewrite to a ipv4 only ipv6 address - {ok, - HEnt#hostent { - h_addrtype = inet6, - h_length = 16, - h_addr_list = - lists:map( - fun({A,B,C,D}) -> - {0,0,0,0,0,16#ffff,A*256+B,C*256+D} - end, HEnt#hostent.h_addr_list) - }}; - Error -> - Error - end; - Error -> - Error - end; + getbyname_tm(Name,?S_AAAA,Timer); gethostbyname_tm(_Name, _Family, _Timer) -> {error, einval}. @@ -859,15 +835,17 @@ query_ns(S0, Id, Buffer, IP, Port, Timer, Retry, I, {ok,S} -> Timeout = inet:timeout( (Tm * (1 bsl I)) div Retry, Timer), - {S, case query_udp( S, Id, Buffer, IP, Port, Timeout, Verbose) of {ok,#dns_rec{header=H}} when H#dns_header.tc -> TcpTimeout = inet:timeout(Tm*5, Timer), - query_tcp( - TcpTimeout, Id, Buffer, IP, Port, Verbose); - Reply -> Reply - end}; + {S, query_tcp( + TcpTimeout, Id, Buffer, IP, Port, Verbose)}; + {error, econnrefused} = Err -> + ok = udp_close(S), + {#sock{}, Err}; + Reply -> {S, Reply} + end; Error -> {S0,Error} end diff --git a/lib/kernel/src/inet_tcp.erl b/lib/kernel/src/inet_tcp.erl index dac6b3119d..f1e3116856 100644 --- a/lib/kernel/src/inet_tcp.erl +++ b/lib/kernel/src/inet_tcp.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2016. All Rights Reserved. +%% Copyright Ericsson AB 1997-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -164,7 +164,7 @@ listen(Port, Opts) -> %% Accept %% accept(L) -> - case prim_inet:accept(L) of + case prim_inet:accept(L, accept_family_opts()) of {ok, S} -> inet_db:register_socket(S, ?MODULE), {ok,S}; @@ -172,13 +172,15 @@ accept(L) -> end. accept(L, Timeout) -> - case prim_inet:accept(L, Timeout) of + case prim_inet:accept(L, Timeout, accept_family_opts()) of {ok, S} -> inet_db:register_socket(S, ?MODULE), {ok,S}; Error -> Error end. +accept_family_opts() -> [tos, ttl, recvtos, recvttl]. + %% %% Create a port/socket from a file descriptor %% diff --git a/lib/kernel/src/inet_tcp_dist.erl b/lib/kernel/src/inet_tcp_dist.erl index e3fdb1bb22..c37212b0f9 100644 --- a/lib/kernel/src/inet_tcp_dist.erl +++ b/lib/kernel/src/inet_tcp_dist.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2017. All Rights Reserved. +%% Copyright Ericsson AB 1997-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -283,73 +283,22 @@ do_setup(Driver, Kernel, Node, Type, MyNode, LongOrShortNames, SetupTime) -> ?trace("~p~n",[{inet_tcp_dist,self(),setup,Node}]), [Name, Address] = splitnode(Driver, Node, LongOrShortNames), AddressFamily = Driver:family(), - case inet:getaddr(Address, AddressFamily) of + ErlEpmd = net_kernel:epmd_module(), + {ARMod, ARFun} = get_address_resolver(ErlEpmd), + Timer = dist_util:start_timer(SetupTime), + case ARMod:ARFun(Name, Address, AddressFamily) of + {ok, Ip, TcpPort, Version} -> + ?trace("address_please(~p) -> version ~p~n", + [Node,Version]), + do_setup_connect(Driver, Kernel, Node, Address, AddressFamily, + Ip, TcpPort, Version, Type, MyNode, Timer); {ok, Ip} -> - Timer = dist_util:start_timer(SetupTime), - ErlEpmd = net_kernel:epmd_module(), case ErlEpmd:port_please(Name, Ip) of {port, TcpPort, Version} -> ?trace("port_please(~p) -> version ~p~n", [Node,Version]), - dist_util:reset_timer(Timer), - case - Driver:connect( - Ip, TcpPort, - connect_options([{active, false}, {packet, 2}])) - of - {ok, Socket} -> - HSData = #hs_data{ - kernel_pid = Kernel, - other_node = Node, - this_node = MyNode, - socket = Socket, - timer = Timer, - this_flags = 0, - other_version = Version, - f_send = fun Driver:send/2, - f_recv = fun Driver:recv/3, - f_setopts_pre_nodeup = - fun(S) -> - inet:setopts - (S, - [{active, false}, - {packet, 4}, - nodelay()]) - end, - f_setopts_post_nodeup = - fun(S) -> - inet:setopts - (S, - [{active, true}, - {deliver, port}, - {packet, 4}, - nodelay()]) - end, - - f_getll = fun inet:getll/1, - f_address = - fun(_,_) -> - #net_address{ - address = {Ip,TcpPort}, - host = Address, - protocol = tcp, - family = AddressFamily} - end, - mf_tick = fun(S) -> ?MODULE:tick(Driver, S) end, - mf_getstat = fun ?MODULE:getstat/1, - request_type = Type, - mf_setopts = fun ?MODULE:setopts/2, - mf_getopts = fun ?MODULE:getopts/2 - }, - dist_util:handshake_we_started(HSData); - _ -> - %% Other Node may have closed since - %% port_please ! - ?trace("other node (~p) " - "closed since port_please.~n", - [Node]), - ?shutdown(Node) - end; + do_setup_connect(Driver, Kernel, Node, Address, AddressFamily, + Ip, TcpPort, Version, Type, MyNode, Timer); _ -> ?trace("port_please (~p) " "failed.~n", [Node]), @@ -361,6 +310,71 @@ do_setup(Driver, Kernel, Node, Type, MyNode, LongOrShortNames, SetupTime) -> ?shutdown(Node) end. +%% +%% Actual setup of connection +%% +do_setup_connect(Driver, Kernel, Node, Address, AddressFamily, + Ip, TcpPort, Version, Type, MyNode, Timer) -> + dist_util:reset_timer(Timer), + case + Driver:connect( + Ip, TcpPort, + connect_options([{active, false}, {packet, 2}])) + of + {ok, Socket} -> + HSData = #hs_data{ + kernel_pid = Kernel, + other_node = Node, + this_node = MyNode, + socket = Socket, + timer = Timer, + this_flags = 0, + other_version = Version, + f_send = fun Driver:send/2, + f_recv = fun Driver:recv/3, + f_setopts_pre_nodeup = + fun(S) -> + inet:setopts + (S, + [{active, false}, + {packet, 4}, + nodelay()]) + end, + f_setopts_post_nodeup = + fun(S) -> + inet:setopts + (S, + [{active, true}, + {deliver, port}, + {packet, 4}, + nodelay()]) + end, + + f_getll = fun inet:getll/1, + f_address = + fun(_,_) -> + #net_address{ + address = {Ip,TcpPort}, + host = Address, + protocol = tcp, + family = AddressFamily} + end, + mf_tick = fun(S) -> ?MODULE:tick(Driver, S) end, + mf_getstat = fun ?MODULE:getstat/1, + request_type = Type, + mf_setopts = fun ?MODULE:setopts/2, + mf_getopts = fun ?MODULE:getopts/2 + }, + dist_util:handshake_we_started(HSData); + _ -> + %% Other Node may have closed since + %% discovery ! + ?trace("other node (~p) " + "closed since discovery (port_please).~n", + [Node]), + ?shutdown(Node) + end. + connect_options(Opts) -> case application:get_env(kernel, inet_dist_connect_options) of {ok,ConnectOpts} -> @@ -430,6 +444,16 @@ get_tcp_address(Driver, Socket) -> }. %% ------------------------------------------------------------ +%% Determine if EPMD module supports address resolving. Default +%% is to use inet:getaddr/2. +%% ------------------------------------------------------------ +get_address_resolver(EpmdModule) -> + case erlang:function_exported(EpmdModule, address_please, 3) of + true -> {EpmdModule, address_please}; + _ -> {erl_epmd, address_please} + end. + +%% ------------------------------------------------------------ %% Do only accept new connection attempts from nodes at our %% own LAN, if the check_ip environment parameter is true. %% ------------------------------------------------------------ diff --git a/lib/kernel/src/kernel.app.src b/lib/kernel/src/kernel.app.src index 0eca6fef03..6bd5518a37 100644 --- a/lib/kernel/src/kernel.app.src +++ b/lib/kernel/src/kernel.app.src @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2017. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -57,8 +57,23 @@ inet_tcp_dist, kernel, kernel_config, + kernel_refc, local_tcp, local_udp, + logger, + logger_backend, + logger_config, + logger_disk_log_h, + logger_filters, + logger_formatter, + logger_h_common, + logger_handler_watcher, + logger_olp, + logger_proxy, + logger_server, + logger_simple_h, + logger_std_h, + logger_sup, net, net_adm, net_kernel, @@ -88,6 +103,13 @@ inet_udp, inet_sctp, pg2, + raw_file_io, + raw_file_io_compressed, + raw_file_io_deflate, + raw_file_io_delayed, + raw_file_io_inflate, + raw_file_io_list, + raw_file_io_raw, seq_trace, standard_error, wrap_log_reader]}, @@ -107,7 +129,11 @@ heart, init, kernel_config, + kernel_refc, kernel_sup, + logger, + logger_handler_watcher, + logger_sup, net_kernel, net_sup, rex, @@ -118,8 +144,10 @@ inet_db, pg2]}, {applications, []}, - {env, [{error_logger, tty}]}, + {env, [{logger_level, notice}, + {logger_sasl_compatible, false} + ]}, {mod, {kernel, []}}, - {runtime_dependencies, ["erts-9.3", "stdlib-3.4", "sasl-3.0"]} + {runtime_dependencies, ["erts-10.2.5", "stdlib-3.5", "sasl-3.0"]} ] }. diff --git a/lib/kernel/src/kernel.appup.src b/lib/kernel/src/kernel.appup.src index 4ee497bbbd..aca3247c8f 100644 --- a/lib/kernel/src/kernel.appup.src +++ b/lib/kernel/src/kernel.appup.src @@ -16,11 +16,52 @@ %% limitations under the License. %% %% %CopyrightEnd% +%% +%% We allow upgrade from, and downgrade to all previous +%% versions from the following OTP releases: +%% - OTP 20 +%% - OTP 21 +%% +%% We also allow upgrade from, and downgrade to all +%% versions that have branched off from the above +%% stated previous versions. +%% {"%VSN%", - %% Up from - max one major revision back - [{<<"5\\.[0-3](\\.[0-9]+)*">>,[restart_new_emulator]}, % OTP-19.*, OTP-20.0 - {<<"5\\.4(\\.[0-9]+)*">>,[restart_new_emulator]}], % OTP-20.1+ - %% Down to - max one major revision back - [{<<"5\\.[0-3](\\.[0-9]+)*">>,[restart_new_emulator]}, % OTP-19.*, OTP-20.0 - {<<"5\\.4(\\.[0-9]+)*">>,[restart_new_emulator]}] % OTP-20.1+ -}. + [{<<"^5\\.3$">>,[restart_new_emulator]}, + {<<"^5\\.3\\.0(?:\\.[0-9]+)+$">>,[restart_new_emulator]}, + {<<"^5\\.3\\.1(?:\\.[0-9]+)*$">>,[restart_new_emulator]}, + {<<"^5\\.4$">>,[restart_new_emulator]}, + {<<"^5\\.4\\.0(?:\\.[0-9]+)+$">>,[restart_new_emulator]}, + {<<"^5\\.4\\.1(?:\\.[0-9]+)*$">>,[restart_new_emulator]}, + {<<"^5\\.4\\.2(?:\\.[0-9]+)*$">>,[restart_new_emulator]}, + {<<"^5\\.4\\.3(?:\\.[0-9]+)*$">>,[restart_new_emulator]}, + {<<"^6\\.0$">>,[restart_new_emulator]}, + {<<"^6\\.0\\.0(?:\\.[0-9]+)+$">>,[restart_new_emulator]}, + {<<"^6\\.0\\.1(?:\\.[0-9]+)*$">>,[restart_new_emulator]}, + {<<"^6\\.1$">>,[restart_new_emulator]}, + {<<"^6\\.1\\.0(?:\\.[0-9]+)+$">>,[restart_new_emulator]}, + {<<"^6\\.1\\.1(?:\\.[0-9]+)*$">>,[restart_new_emulator]}, + {<<"^6\\.2$">>,[restart_new_emulator]}, + {<<"^6\\.2\\.0(?:\\.[0-9]+)+$">>,[restart_new_emulator]}, + {<<"^6\\.2\\.1(?:\\.[0-9]+)*$">>,[restart_new_emulator]}, + {<<"^6\\.3$">>,[restart_new_emulator]}, + {<<"^6\\.3\\.0(?:\\.[0-9]+)+$">>,[restart_new_emulator]}], + [{<<"^5\\.3$">>,[restart_new_emulator]}, + {<<"^5\\.3\\.0(?:\\.[0-9]+)+$">>,[restart_new_emulator]}, + {<<"^5\\.3\\.1(?:\\.[0-9]+)*$">>,[restart_new_emulator]}, + {<<"^5\\.4$">>,[restart_new_emulator]}, + {<<"^5\\.4\\.0(?:\\.[0-9]+)+$">>,[restart_new_emulator]}, + {<<"^5\\.4\\.1(?:\\.[0-9]+)*$">>,[restart_new_emulator]}, + {<<"^5\\.4\\.2(?:\\.[0-9]+)*$">>,[restart_new_emulator]}, + {<<"^5\\.4\\.3(?:\\.[0-9]+)*$">>,[restart_new_emulator]}, + {<<"^6\\.0$">>,[restart_new_emulator]}, + {<<"^6\\.0\\.0(?:\\.[0-9]+)+$">>,[restart_new_emulator]}, + {<<"^6\\.0\\.1(?:\\.[0-9]+)*$">>,[restart_new_emulator]}, + {<<"^6\\.1$">>,[restart_new_emulator]}, + {<<"^6\\.1\\.0(?:\\.[0-9]+)+$">>,[restart_new_emulator]}, + {<<"^6\\.1\\.1(?:\\.[0-9]+)*$">>,[restart_new_emulator]}, + {<<"^6\\.2$">>,[restart_new_emulator]}, + {<<"^6\\.2\\.0(?:\\.[0-9]+)+$">>,[restart_new_emulator]}, + {<<"^6\\.2\\.1(?:\\.[0-9]+)*$">>,[restart_new_emulator]}, + {<<"^6\\.3$">>,[restart_new_emulator]}, + {<<"^6\\.3\\.0(?:\\.[0-9]+)+$">>,[restart_new_emulator]}]}. diff --git a/lib/kernel/src/kernel.erl b/lib/kernel/src/kernel.erl index cba57088ec..c68d04e279 100644 --- a/lib/kernel/src/kernel.erl +++ b/lib/kernel/src/kernel.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2017. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -30,24 +30,13 @@ %%% Callback functions for the kernel application. %%%----------------------------------------------------------------- start(_, []) -> + %% Setup the logger and configure the kernel logger environment + ok = logger:internal_init_logger(), case supervisor:start_link({local, kernel_sup}, kernel, []) of {ok, Pid} -> - %% add signal handler - case whereis(erl_signal_server) of - %% in case of minimal mode - undefined -> ok; - _ -> - ok = gen_event:add_handler(erl_signal_server, erl_signal_handler, []) - end, - %% add error handler - Type = get_error_logger_type(), - case error_logger:swap_handler(Type) of - ok -> {ok, Pid, []}; - Error -> - %% Not necessary since the node will crash anyway: - exit(Pid, shutdown), - Error - end; + ok = erl_signal_handler:start(), + ok = logger:add_handlers(kernel), + {ok, Pid, []}; Error -> Error end. @@ -62,16 +51,6 @@ config_change(Changed, New, Removed) -> do_global_groups_change(Changed, New, Removed), ok. -get_error_logger_type() -> - case application:get_env(kernel, error_logger) of - {ok, tty} -> tty; - {ok, {file, File}} when is_list(File) -> {logfile, File}; - {ok, false} -> false; - {ok, silent} -> silent; - undefined -> tty; % default value - {ok, Bad} -> exit({bad_config, {kernel, {error_logger, Bad}}}) - end. - %%%----------------------------------------------------------------- %%% The process structure in kernel is as shown in the figure. %%% @@ -111,6 +90,13 @@ init([]) -> type => worker, modules => [kernel_config]}, + RefC = #{id => kernel_refc, + start => {kernel_refc, start_link, []}, + restart => permanent, + shutdown => 2000, + type => worker, + modules => [kernel_refc]}, + Code = #{id => code_server, start => {code, start_link, []}, restart => permanent, @@ -146,9 +132,18 @@ init([]) -> type => supervisor, modules => [?MODULE]}, + + LoggerSup = #{id => logger_sup, + start => {logger_sup, start_link, []}, + restart => permanent, + shutdown => infinity, + type => supervisor, + modules => [logger_sup]}, + case init:get_argument(mode) of {ok, [["minimal"]]} -> - {ok, {SupFlags, [Code, File, StdError, User, Config, SafeSup]}}; + {ok, {SupFlags, + [Code, File, StdError, User, LoggerSup, Config, RefC, SafeSup]}}; _ -> Rpc = #{id => rex, start => {rpc, start_link, []}, @@ -199,7 +194,7 @@ init([]) -> {ok, {SupFlags, [Code, Rpc, Global, InetDb | DistAC] ++ [NetSup, GlGroup, File, SigSrv, - StdError, User, Config, SafeSup] ++ Timer}} + StdError, User, Config, RefC, SafeSup, LoggerSup] ++ Timer}} end; init(safe) -> SupFlags = #{strategy => one_for_one, diff --git a/lib/kernel/src/kernel_config.erl b/lib/kernel/src/kernel_config.erl index 535083ef27..691a266c2d 100644 --- a/lib/kernel/src/kernel_config.erl +++ b/lib/kernel/src/kernel_config.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2016. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -30,11 +30,8 @@ %%%----------------------------------------------------------------- %%% This module implements a process that configures the kernel %%% application. -%%% Its purpose is that in the init phase add an error_logger -%%% and when it dies (when the kernel application dies) deleting the -%%% previously installed error_logger. -%%% Also, this process waits for other nodes at startup, if -%%% specified. +%%% Its purpose is that in the init phase waits for other nodes at startup, +%%% if specified. %%%----------------------------------------------------------------- start_link() -> gen_server:start_link(kernel_config, [], []). diff --git a/lib/kernel/src/kernel_refc.erl b/lib/kernel/src/kernel_refc.erl new file mode 100644 index 0000000000..8e04ff99d8 --- /dev/null +++ b/lib/kernel/src/kernel_refc.erl @@ -0,0 +1,139 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(kernel_refc). + +-behaviour(gen_server). + +%% External exports +-export([start_link/0, scheduler_wall_time/1]). +%% Internal exports +-export([init/1, handle_info/2, terminate/2]). +-export([handle_call/3, handle_cast/2, code_change/3]). + +%%%----------------------------------------------------------------- +%%% This module implements a process that handles reference counters for +%%% various erts or other kernel resources which needs reference counting. +%%% +%%% Should not be documented nor used directly by user applications. +%%%----------------------------------------------------------------- +start_link() -> + gen_server:start_link({local,kernel_refc}, kernel_refc, [], []). + +-spec scheduler_wall_time(boolean()) -> boolean(). +scheduler_wall_time(Bool) -> + gen_server:call(kernel_refc, {scheduler_wall_time, self(), Bool}, infinity). + +%%----------------------------------------------------------------- +%% Callback functions from gen_server +%%----------------------------------------------------------------- + +-spec init([]) -> {'ok', map()}. + +init([]) -> + resource(scheduler_wall_time, false), + {ok, #{scheduler_wall_time=>#{}}}. + +-spec handle_call(term(), term(), State) -> {'reply', term(), State}. +handle_call({What, Who, false}, _From, State) -> + {Reply, Cnt} = do_stop(What, maps:get(What, State), Who), + {reply, Reply, State#{What:=Cnt}}; +handle_call({What, Who, true}, _From, State) -> + {Reply, Cnt} = do_start(What, maps:get(What, State), Who), + {reply, Reply, State#{What:=Cnt}}; +handle_call(_, _From, State) -> + {reply, badarg, State}. + +-spec handle_cast(term(), State) -> {'noreply', State}. +handle_cast(_, State) -> + {noreply, State}. + +-spec handle_info(term(), State) -> {'noreply', State}. +handle_info({'DOWN', _Ref, process, Pid, _}, State) -> + Cleanup = fun(Resource, Cnts) -> + cleanup(Resource, Cnts, Pid) + end, + {noreply, maps:map(Cleanup, State)}; +handle_info(_, State) -> + {noreply, State}. + +-spec terminate(term(), term()) -> 'ok'. +terminate(_Reason, _State) -> + ok. + +-spec code_change(term(), State, term()) -> {'ok', State}. +code_change(_OldVsn, State, _Extra) -> + {ok, State}. + +%%----------------------------------------------------------------- +%% Internal functions +%%----------------------------------------------------------------- + +do_start(Resource, Cnt, Pid) -> + case maps:get(Pid, Cnt, undefined) of + undefined -> + Ref = erlang:monitor(process, Pid), + case any(Cnt) of + true -> + {true, Cnt#{Pid=>{1, Ref}}}; + false -> + resource(Resource, true), + {false, Cnt#{Pid=>{1, Ref}}} + end; + {N, Ref} -> + {true, Cnt#{Pid=>{N+1, Ref}}} + end. + +do_stop(Resource, Cnt0, Pid) -> + case maps:get(Pid, Cnt0, undefined) of + undefined -> + {any(Cnt0), Cnt0}; + {1, Ref} -> + erlang:demonitor(Ref, [flush]), + Cnt = maps:remove(Pid, Cnt0), + case any(Cnt) of + true -> + {true, Cnt}; + false -> + resource(Resource, false), + {true, Cnt} + end; + {N, Ref} -> + {true, Cnt0#{Pid=>{N-1, Ref}}} + end. + +cleanup(Resource, Cnt0, Pid) -> + case maps:is_key(Pid, Cnt0) of + true -> + Cnt = maps:remove(Pid, Cnt0), + case any(Cnt) of + true -> + Cnt; + false -> + resource(Resource, false), + Cnt + end; + false -> + Cnt0 + end. + +any(Cnt) -> maps:size(Cnt) > 0. + +resource(scheduler_wall_time, Enable) -> + _ = erts_internal:scheduler_wall_time(Enable). diff --git a/lib/kernel/src/logger.erl b/lib/kernel/src/logger.erl new file mode 100644 index 0000000000..38bd2f481c --- /dev/null +++ b/lib/kernel/src/logger.erl @@ -0,0 +1,1146 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(logger). + +%% Log interface +-export([emergency/1,emergency/2,emergency/3, + alert/1,alert/2,alert/3, + critical/1,critical/2,critical/3, + error/1,error/2,error/3, + warning/1,warning/2,warning/3, + notice/1,notice/2,notice/3, + info/1,info/2,info/3, + debug/1,debug/2,debug/3]). +-export([log/2,log/3,log/4]). + +%% Called by macro +-export([allow/2,macro_log/3,macro_log/4,macro_log/5,add_default_metadata/1]). + +%% Configuration +-export([add_handler/3, remove_handler/1, + add_primary_filter/2, add_handler_filter/3, + remove_primary_filter/1, remove_handler_filter/2, + set_module_level/2, + unset_module_level/1, unset_module_level/0, + set_application_level/2, unset_application_level/1, + get_module_level/0, get_module_level/1, + set_primary_config/1, set_primary_config/2, + set_handler_config/2, set_handler_config/3, + set_proxy_config/1, + update_primary_config/1, + update_handler_config/2, update_handler_config/3, + update_proxy_config/1, + update_formatter_config/2, update_formatter_config/3, + get_primary_config/0, get_handler_config/1, + get_handler_config/0, get_handler_ids/0, get_config/0, + get_proxy_config/0, + add_handlers/1]). + +%% Private configuration +-export([internal_init_logger/0]). + +%% Misc +-export([compare_levels/2]). +-export([set_process_metadata/1, update_process_metadata/1, + unset_process_metadata/0, get_process_metadata/0]). +-export([i/0, i/1]). +-export([timestamp/0]). + +%% Basic report formatting +-export([format_report/1, format_otp_report/1]). + +-export([internal_log/2,filter_stacktrace/2]). + +-include("logger_internal.hrl"). +-include("logger.hrl"). + +%%%----------------------------------------------------------------- +%%% Types +-type log_event() :: #{level:=level(), + msg:={io:format(),[term()]} | + {report,report()} | + {string,unicode:chardata()}, + meta:=metadata()}. +-type level() :: emergency | alert | critical | error | + warning | notice | info | debug. +-type report() :: map() | [{atom(),term()}]. +-type report_cb() :: fun((report()) -> {io:format(),[term()]}) | + fun((report(),report_cb_config()) -> unicode:chardata()). +-type report_cb_config() :: #{depth := pos_integer() | unlimited, + chars_limit := pos_integer() | unlimited, + single_line := boolean()}. +-type msg_fun() :: fun((term()) -> {io:format(),[term()]} | + report() | + unicode:chardata()). +-type metadata() :: #{pid => pid(), + gl => pid(), + time => timestamp(), + mfa => {module(),atom(),non_neg_integer()}, + file => file:filename(), + line => non_neg_integer(), + domain => [atom()], + report_cb => report_cb(), + atom() => term()}. +-type location() :: #{mfa := {module(),atom(),non_neg_integer()}, + file := file:filename(), + line := non_neg_integer()}. +-type handler_id() :: atom(). +-type filter_id() :: atom(). +-type filter() :: {fun((log_event(),filter_arg()) -> + filter_return()),filter_arg()}. +-type filter_arg() :: term(). +-type filter_return() :: stop | ignore | log_event(). +-type primary_config() :: #{level => level() | all | none, + filter_default => log | stop, + filters => [{filter_id(),filter()}]}. +-type handler_config() :: #{id => handler_id(), + config => term(), + level => level() | all | none, + module => module(), + filter_default => log | stop, + filters => [{filter_id(),filter()}], + formatter => {module(),formatter_config()}}. +-type timestamp() :: integer(). +-type formatter_config() :: #{atom() => term()}. + +-type config_handler() :: {handler, handler_id(), module(), handler_config()}. + +-type config_logger() :: [{handler,default,undefined} | + config_handler() | + {filters,log | stop,[{filter_id(),filter()}]} | + {module_level,level(),[module()]}]. + +-type olp_config() :: #{sync_mode_qlen => non_neg_integer(), + drop_mode_qlen => pos_integer(), + flush_qlen => pos_integer(), + burst_limit_enable => boolean(), + burst_limit_max_count => pos_integer(), + burst_limit_window_time => pos_integer(), + overload_kill_enable => boolean(), + overload_kill_qlen => pos_integer(), + overload_kill_mem_size => pos_integer(), + overload_kill_restart_after => + non_neg_integer() | infinity}. + +-export_type([log_event/0, + level/0, + report/0, + report_cb/0, + report_cb_config/0, + msg_fun/0, + metadata/0, + primary_config/0, + handler_config/0, + handler_id/0, + filter_id/0, + filter/0, + filter_arg/0, + filter_return/0, + config_handler/0, + formatter_config/0, + olp_config/0, + timestamp/0]). + +%%%----------------------------------------------------------------- +%%% API +emergency(X) -> + log(emergency,X). +emergency(X,Y) -> + log(emergency,X,Y). +emergency(X,Y,Z) -> + log(emergency,X,Y,Z). + +alert(X) -> + log(alert,X). +alert(X,Y) -> + log(alert,X,Y). +alert(X,Y,Z) -> + log(alert,X,Y,Z). + +critical(X) -> + log(critical,X). +critical(X,Y) -> + log(critical,X,Y). +critical(X,Y,Z) -> + log(critical,X,Y,Z). + +error(X) -> + log(error,X). +error(X,Y) -> + log(error,X,Y). +error(X,Y,Z) -> + log(error,X,Y,Z). + +warning(X) -> + log(warning,X). +warning(X,Y) -> + log(warning,X,Y). +warning(X,Y,Z) -> + log(warning,X,Y,Z). + +notice(X) -> + log(notice,X). +notice(X,Y) -> + log(notice,X,Y). +notice(X,Y,Z) -> + log(notice,X,Y,Z). + +info(X) -> + log(info,X). +info(X,Y) -> + log(info,X,Y). +info(X,Y,Z) -> + log(info,X,Y,Z). + +debug(X) -> + log(debug,X). +debug(X,Y) -> + log(debug,X,Y). +debug(X,Y,Z) -> + log(debug,X,Y,Z). + +-spec log(Level,StringOrReport) -> ok when + Level :: level(), + StringOrReport :: unicode:chardata() | report(). +log(Level, StringOrReport) -> + do_log(Level,StringOrReport,#{}). + +-spec log(Level,StringOrReport,Metadata) -> ok when + Level :: level(), + StringOrReport :: unicode:chardata() | report(), + Metadata :: metadata(); + (Level,Format,Args) -> ok when + Level :: level(), + Format :: io:format(), + Args ::[term()]; + (Level,Fun,FunArgs) -> ok when + Level :: level(), + Fun :: msg_fun(), + FunArgs :: term(). +log(Level, StringOrReport, Metadata) + when is_map(Metadata), not is_function(StringOrReport) -> + do_log(Level,StringOrReport,Metadata); +log(Level, FunOrFormat, Args) -> + do_log(Level,{FunOrFormat,Args},#{}). + +-spec log(Level,Format, Args, Metadata) -> ok when + Level :: level(), + Format :: io:format(), + Args :: [term()], + Metadata :: metadata(); + (Level,Fun,FunArgs,Metadata) -> ok when + Level :: level(), + Fun :: msg_fun(), + FunArgs :: term(), + Metadata :: metadata(). +log(Level, FunOrFormat, Args, Metadata) -> + do_log(Level,{FunOrFormat,Args},Metadata). + +-spec allow(Level,Module) -> boolean() when + Level :: level(), + Module :: module(). +allow(Level,Module) when ?IS_LEVEL(Level), is_atom(Module) -> + logger_config:allow(?LOGGER_TABLE,Level,Module). + + +-spec macro_log(Location,Level,StringOrReport) -> ok when + Location :: location(), + Level :: level(), + StringOrReport :: unicode:chardata() | report(). +macro_log(Location,Level,StringOrReport) -> + log_allowed(Location,Level,StringOrReport,#{}). + +-spec macro_log(Location,Level,StringOrReport,Meta) -> ok when + Location :: location(), + Level :: level(), + StringOrReport :: unicode:chardata() | report(), + Meta :: metadata(); + (Location,Level,Format,Args) -> ok when + Location :: location(), + Level :: level(), + Format :: io:format(), + Args ::[term()]; + (Location,Level,Fun,FunArgs) -> ok when + Location :: location(), + Level :: level(), + Fun :: msg_fun(), + FunArgs :: term(). +macro_log(Location,Level,StringOrReport,Meta) + when is_map(Meta), not is_function(StringOrReport) -> + log_allowed(Location,Level,StringOrReport,Meta); +macro_log(Location,Level,FunOrFormat,Args) -> + log_allowed(Location,Level,{FunOrFormat,Args},#{}). + +-spec macro_log(Location,Level,Format,Args,Meta) -> ok when + Location :: location(), + Level :: level(), + Format :: io:format(), + Args ::[term()], + Meta :: metadata(); + (Location,Level,Fun,FunArgs,Meta) -> ok when + Location :: location(), + Level :: level(), + Fun :: msg_fun(), + FunArgs :: term(), + Meta :: metadata(). +macro_log(Location,Level,FunOrFormat,Args,Meta) -> + log_allowed(Location,Level,{FunOrFormat,Args},Meta). + +-spec format_otp_report(Report) -> FormatArgs when + Report :: report(), + FormatArgs :: {io:format(),[term()]}. +format_otp_report(#{label:=_,report:=Report}) -> + format_report(Report); +format_otp_report(Report) -> + format_report(Report). + +-spec format_report(Report) -> FormatArgs when + Report :: report(), + FormatArgs :: {io:format(),[term()]}. +format_report(Report) when is_map(Report) -> + format_report(maps:to_list(Report)); +format_report(Report) when is_list(Report) -> + case lists:flatten(Report) of + [] -> + {"~tp",[[]]}; + FlatList -> + case string_p1(FlatList) of + true -> + {"~ts",[FlatList]}; + false -> + format_term_list(Report,[],[]) + end + end; +format_report(Report) -> + {"~tp",[Report]}. + +format_term_list([{Tag,Data}|T],Format,Args) -> + PorS = case string_p(Data) of + true -> "s"; + false -> "p" + end, + format_term_list(T,[" ~tp: ~t"++PorS|Format],[Data,Tag|Args]); +format_term_list([Data|T],Format,Args) -> + format_term_list(T,[" ~tp"|Format],[Data|Args]); +format_term_list([],Format,Args) -> + {lists:flatten(lists:join($\n,lists:reverse(Format))),lists:reverse(Args)}. + +string_p(List) when is_list(List) -> + string_p1(lists:flatten(List)); +string_p(_) -> + false. + +string_p1([]) -> + false; +string_p1(FlatList) -> + io_lib:printable_unicode_list(FlatList). + +internal_log(Level,Term) when is_atom(Level) -> + erlang:display_string("Logger - "++ atom_to_list(Level) ++ ": "), + erlang:display(Term). + +-spec timestamp() -> timestamp(). +timestamp() -> + os:system_time(microsecond). + +%%%----------------------------------------------------------------- +%%% Configuration +-spec add_primary_filter(FilterId,Filter) -> ok | {error,term()} when + FilterId :: filter_id(), + Filter :: filter(). +add_primary_filter(FilterId,Filter) -> + logger_server:add_filter(primary,{FilterId,Filter}). + +-spec add_handler_filter(HandlerId,FilterId,Filter) -> ok | {error,term()} when + HandlerId :: handler_id(), + FilterId :: filter_id(), + Filter :: filter(). +add_handler_filter(HandlerId,FilterId,Filter) -> + logger_server:add_filter(HandlerId,{FilterId,Filter}). + + +-spec remove_primary_filter(FilterId) -> ok | {error,term()} when + FilterId :: filter_id(). +remove_primary_filter(FilterId) -> + logger_server:remove_filter(primary,FilterId). + +-spec remove_handler_filter(HandlerId,FilterId) -> ok | {error,term()} when + HandlerId :: handler_id(), + FilterId :: filter_id(). +remove_handler_filter(HandlerId,FilterId) -> + logger_server:remove_filter(HandlerId,FilterId). + +-spec add_handler(HandlerId,Module,Config) -> ok | {error,term()} when + HandlerId :: handler_id(), + Module :: module(), + Config :: handler_config(). +add_handler(HandlerId,Module,Config) -> + logger_server:add_handler(HandlerId,Module,Config). + +-spec remove_handler(HandlerId) -> ok | {error,term()} when + HandlerId :: handler_id(). +remove_handler(HandlerId) -> + logger_server:remove_handler(HandlerId). + +-spec set_primary_config(level,Level) -> ok | {error,term()} when + Level :: level() | all | none; + (filter_default,FilterDefault) -> ok | {error,term()} when + FilterDefault :: log | stop; + (filters,Filters) -> ok | {error,term()} when + Filters :: [{filter_id(),filter()}]. +set_primary_config(Key,Value) -> + logger_server:set_config(primary,Key,Value). + +-spec set_primary_config(Config) -> ok | {error,term()} when + Config :: primary_config(). +set_primary_config(Config) -> + logger_server:set_config(primary,Config). + + +-spec set_handler_config(HandlerId,level,Level) -> Return when + HandlerId :: handler_id(), + Level :: level() | all | none, + Return :: ok | {error,term()}; + (HandlerId,filter_default,FilterDefault) -> Return when + HandlerId :: handler_id(), + FilterDefault :: log | stop, + Return :: ok | {error,term()}; + (HandlerId,filters,Filters) -> Return when + HandlerId :: handler_id(), + Filters :: [{filter_id(),filter()}], + Return :: ok | {error,term()}; + (HandlerId,formatter,Formatter) -> Return when + HandlerId :: handler_id(), + Formatter :: {module(), formatter_config()}, + Return :: ok | {error,term()}; + (HandlerId,config,Config) -> Return when + HandlerId :: handler_id(), + Config :: term(), + Return :: ok | {error,term()}. +set_handler_config(HandlerId,Key,Value) -> + logger_server:set_config(HandlerId,Key,Value). + +-spec set_handler_config(HandlerId,Config) -> ok | {error,term()} when + HandlerId :: handler_id(), + Config :: handler_config(). +set_handler_config(HandlerId,Config) -> + logger_server:set_config(HandlerId,Config). + +-spec set_proxy_config(Config) -> ok | {error,term()} when + Config :: olp_config(). +set_proxy_config(Config) -> + logger_server:set_config(proxy,Config). + +-spec update_primary_config(Config) -> ok | {error,term()} when + Config :: primary_config(). +update_primary_config(Config) -> + logger_server:update_config(primary,Config). + +-spec update_handler_config(HandlerId,level,Level) -> Return when + HandlerId :: handler_id(), + Level :: level() | all | none, + Return :: ok | {error,term()}; + (HandlerId,filter_default,FilterDefault) -> Return when + HandlerId :: handler_id(), + FilterDefault :: log | stop, + Return :: ok | {error,term()}; + (HandlerId,filters,Filters) -> Return when + HandlerId :: handler_id(), + Filters :: [{filter_id(),filter()}], + Return :: ok | {error,term()}; + (HandlerId,formatter,Formatter) -> Return when + HandlerId :: handler_id(), + Formatter :: {module(), formatter_config()}, + Return :: ok | {error,term()}; + (HandlerId,config,Config) -> Return when + HandlerId :: handler_id(), + Config :: term(), + Return :: ok | {error,term()}. +update_handler_config(HandlerId,Key,Value) -> + logger_server:update_config(HandlerId,Key,Value). + +-spec update_handler_config(HandlerId,Config) -> ok | {error,term()} when + HandlerId :: handler_id(), + Config :: handler_config(). +update_handler_config(HandlerId,Config) -> + logger_server:update_config(HandlerId,Config). + +-spec update_proxy_config(Config) -> ok | {error,term()} when + Config :: olp_config(). +update_proxy_config(Config) -> + logger_server:update_config(proxy,Config). + +-spec get_primary_config() -> Config when + Config :: primary_config(). +get_primary_config() -> + {ok,Config} = logger_config:get(?LOGGER_TABLE,primary), + maps:remove(handlers,Config). + +-spec get_handler_config(HandlerId) -> {ok,Config} | {error,term()} when + HandlerId :: handler_id(), + Config :: handler_config(). +get_handler_config(HandlerId) -> + case logger_config:get(?LOGGER_TABLE,HandlerId) of + {ok,#{module:=Module}=Config} -> + {ok,try Module:filter_config(Config) + catch _:_ -> Config + end}; + Error -> + Error + end. + +-spec get_handler_config() -> [Config] when + Config :: handler_config(). +get_handler_config() -> + [begin + {ok,Config} = get_handler_config(HandlerId), + Config + end || HandlerId <- get_handler_ids()]. + +-spec get_handler_ids() -> [HandlerId] when + HandlerId :: handler_id(). +get_handler_ids() -> + {ok,#{handlers:=HandlerIds}} = logger_config:get(?LOGGER_TABLE,primary), + HandlerIds. + +-spec get_proxy_config() -> Config when + Config :: olp_config(). +get_proxy_config() -> + {ok,Config} = logger_config:get(?LOGGER_TABLE,proxy), + Config. + +-spec update_formatter_config(HandlerId,FormatterConfig) -> + ok | {error,term()} when + HandlerId :: handler_id(), + FormatterConfig :: formatter_config(). +update_formatter_config(HandlerId,FormatterConfig) -> + logger_server:update_formatter_config(HandlerId,FormatterConfig). + +-spec update_formatter_config(HandlerId,Key,Value) -> + ok | {error,term()} when + HandlerId :: handler_id(), + Key :: atom(), + Value :: term(). +update_formatter_config(HandlerId,Key,Value) -> + logger_server:update_formatter_config(HandlerId,#{Key=>Value}). + +-spec set_module_level(Modules,Level) -> ok | {error,term()} when + Modules :: [module()] | module(), + Level :: level() | all | none. +set_module_level(Module,Level) when is_atom(Module) -> + set_module_level([Module],Level); +set_module_level(Modules,Level) -> + logger_server:set_module_level(Modules,Level). + +-spec unset_module_level(Modules) -> ok when + Modules :: [module()] | module(). +unset_module_level(Module) when is_atom(Module) -> + unset_module_level([Module]); +unset_module_level(Modules) -> + logger_server:unset_module_level(Modules). + +-spec unset_module_level() -> ok. +unset_module_level() -> + logger_server:unset_module_level(). + +-spec set_application_level(Application,Level) -> ok | {error, not_loaded} when + Application :: atom(), + Level :: level() | all | none. +set_application_level(App,Level) -> + case application:get_key(App, modules) of + {ok, Modules} -> + set_module_level(Modules, Level); + undefined -> + {error, {not_loaded, App}} + end. + +-spec unset_application_level(Application) -> ok | {error, not_loaded} when + Application :: atom(). +unset_application_level(App) -> + case application:get_key(App, modules) of + {ok, Modules} -> + unset_module_level(Modules); + undefined -> + {error, {not_loaded, App}} + end. + +-spec get_module_level(Modules) -> [{Module,Level}] when + Modules :: [Module] | Module, + Module :: module(), + Level :: level() | all | none. +get_module_level(Module) when is_atom(Module) -> + get_module_level([Module]); +get_module_level(Modules) when is_list(Modules) -> + [{M,L} || {M,L} <- get_module_level(), + lists:member(M,Modules)]. + +-spec get_module_level() -> [{Module,Level}] when + Module :: module(), + Level :: level() | all | none. +get_module_level() -> + logger_config:get_module_level(?LOGGER_TABLE). + +%%%----------------------------------------------------------------- +%%% Misc +-spec compare_levels(Level1,Level2) -> eq | gt | lt when + Level1 :: level(), + Level2 :: level(). +compare_levels(Level,Level) when ?IS_LEVEL(Level) -> + eq; +compare_levels(Level1,Level2) when ?IS_LEVEL(Level1), ?IS_LEVEL(Level2) -> + Int1 = logger_config:level_to_int(Level1), + Int2 = logger_config:level_to_int(Level2), + if Int1 < Int2 -> gt; + true -> lt + end; +compare_levels(Level1,Level2) -> + erlang:error(badarg,[Level1,Level2]). + +-spec set_process_metadata(Meta) -> ok when + Meta :: metadata(). +set_process_metadata(Meta) when is_map(Meta) -> + _ = put(?LOGGER_META_KEY,Meta), + ok; +set_process_metadata(Meta) -> + erlang:error(badarg,[Meta]). + +-spec update_process_metadata(Meta) -> ok when + Meta :: metadata(). +update_process_metadata(Meta) when is_map(Meta) -> + case get_process_metadata() of + undefined -> + set_process_metadata(Meta); + Meta0 when is_map(Meta0) -> + set_process_metadata(maps:merge(Meta0,Meta)), + ok + end; +update_process_metadata(Meta) -> + erlang:error(badarg,[Meta]). + +-spec get_process_metadata() -> Meta | undefined when + Meta :: metadata(). +get_process_metadata() -> + get(?LOGGER_META_KEY). + +-spec unset_process_metadata() -> ok. +unset_process_metadata() -> + _ = erase(?LOGGER_META_KEY), + ok. + +-spec get_config() -> #{primary=>primary_config(), + handlers=>[handler_config()], + proxy=>olp_config(), + module_levels=>[{module(),level() | all | none}]}. +get_config() -> + #{primary=>get_primary_config(), + handlers=>get_handler_config(), + proxy=>get_proxy_config(), + module_levels=>lists:keysort(1,get_module_level())}. + +-spec i() -> ok. +i() -> + #{primary := Primary, + handlers := HandlerConfigs, + proxy := Proxy, + module_levels := Modules} = get_config(), + M = modifier(), + i_primary(Primary,M), + i_handlers(HandlerConfigs,M), + i_proxy(Proxy,M), + i_modules(Modules,M). + +-spec i(What) -> ok when + What :: primary | handlers | proxy | modules | handler_id(). +i(primary) -> + i_primary(get_primary_config(),modifier()); +i(handlers) -> + i_handlers(get_handler_config(),modifier()); +i(proxy) -> + i_proxy(get_proxy_config(),modifier()); +i(modules) -> + i_modules(get_module_level(),modifier()); +i(HandlerId) when is_atom(HandlerId) -> + case get_handler_config(HandlerId) of + {ok,HandlerConfig} -> + i_handlers([HandlerConfig],modifier()); + Error -> + Error + end; +i(What) -> + erlang:error(badarg,[What]). + + +i_primary(#{level := Level, + filters := Filters, + filter_default := FilterDefault}, + M) -> + io:format("Primary configuration: ~n",[]), + io:format(" Level: ~p~n",[Level]), + io:format(" Filter Default: ~p~n", [FilterDefault]), + io:format(" Filters: ~n", []), + print_filters(" ",Filters,M). + +i_handlers(HandlerConfigs,M) -> + io:format("Handler configuration: ~n", []), + print_handlers(HandlerConfigs,M). + +i_proxy(Proxy,M) -> + io:format("Proxy configuration: ~n", []), + print_custom(" ",Proxy,M). + +i_modules(Modules,M) -> + io:format("Level set per module: ~n", []), + print_module_levels(Modules,M). + +encoding() -> + case lists:keyfind(encoding, 1, io:getopts()) of + false -> latin1; + {encoding, Enc} -> Enc + end. + +modifier() -> + modifier(encoding()). + +modifier(latin1) -> ""; +modifier(_) -> "t". + +print_filters(Indent, {Id, {Fun, Arg}}, M) -> + io:format("~sId: ~"++M++"p~n" + "~s Fun: ~"++M++"p~n" + "~s Arg: ~"++M++"p~n", + [Indent, Id, Indent, Fun, Indent, Arg]); +print_filters(Indent,[],_M) -> + io:format("~s(none)~n",[Indent]); +print_filters(Indent,Filters,M) -> + [print_filters(Indent,Filter,M) || Filter <- Filters], + ok. + +print_handlers(#{id := Id, + module := Module, + level := Level, + filters := Filters, filter_default := FilterDefault, + formatter := {FormatterModule,FormatterConfig}} = Config, M) -> + io:format(" Id: ~"++M++"p~n" + " Module: ~p~n" + " Level: ~p~n" + " Formatter:~n" + " Module: ~p~n" + " Config:~n", + [Id, Module, Level, FormatterModule]), + print_custom(" ",FormatterConfig,M), + io:format(" Filter Default: ~p~n" + " Filters:~n", + [FilterDefault]), + print_filters(" ",Filters,M), + case maps:find(config,Config) of + {ok,HandlerConfig} -> + io:format(" Handler Config:~n"), + print_custom(" ",HandlerConfig,M); + error -> + ok + end, + MyKeys = [filter_default, filters, formatter, level, module, id, config], + case maps:without(MyKeys,Config) of + Empty when Empty==#{} -> + ok; + Unhandled -> + io:format(" Custom Config:~n"), + print_custom(" ",Unhandled,M) + end; +print_handlers([], _M) -> + io:format(" (none)~n"); +print_handlers(HandlerConfigs, M) -> + [print_handlers(HandlerConfig, M) || HandlerConfig <- HandlerConfigs], + ok. + +print_custom(Indent, {Key, Value}, M) -> + io:format("~s~"++M++"p: ~"++M++"p~n",[Indent,Key,Value]); +print_custom(Indent, Map, M) when is_map(Map) -> + print_custom(Indent,lists:keysort(1,maps:to_list(Map)), M); +print_custom(Indent, List, M) when is_list(List), is_tuple(hd(List)) -> + [print_custom(Indent, X, M) || X <- List], + ok; +print_custom(Indent, Value, M) -> + io:format("~s~"++M++"p~n",[Indent,Value]). + +print_module_levels({Module,Level},M) -> + io:format(" Module: ~"++M++"p~n" + " Level: ~p~n", + [Module,Level]); +print_module_levels([],_M) -> + io:format(" (none)~n"); +print_module_levels(Modules,M) -> + [print_module_levels(Module,M) || Module <- Modules], + ok. + +-spec internal_init_logger() -> ok | {error,term()}. +%% This function is responsible for config of the logger +%% This is done before add_handlers because we want the +%% logger settings to take effect before the kernel supervisor +%% tree is started. +internal_init_logger() -> + try + Env = get_logger_env(kernel), + check_logger_config(kernel,Env), + ok = logger:set_primary_config(level, get_logger_level()), + ok = logger:set_primary_config(filter_default, + get_primary_filter_default(Env)), + + [case logger:add_primary_filter(Id, Filter) of + ok -> ok; + {error, Reason} -> throw(Reason) + end || {Id, Filter} <- get_primary_filters(Env)], + + [case logger:set_module_level(Modules, Level) of + ok -> ok; + {error, Reason} -> throw(Reason) + end || {module_level, Level, Modules} <- Env], + + case logger:set_handler_config(simple,filters, + get_default_handler_filters()) of + ok -> ok; + {error,{not_found,simple}} -> ok + end, + + init_kernel_handlers(Env) + catch throw:Reason -> + ?LOG_ERROR("Invalid logger config: ~p", [Reason]), + {error, {bad_config, {kernel, Reason}}} + end. + +-spec init_kernel_handlers(config_logger()) -> ok | {error,term()}. +%% Setup the kernel environment variables to be correct +%% The actual handlers are started by a call to add_handlers. +init_kernel_handlers(Env) -> + try + case get_logger_type(Env) of + {ok,silent} -> + ok = logger:remove_handler(simple); + {ok,false} -> + ok; + {ok,Type} -> + init_default_config(Type,Env) + end + catch throw:Reason -> + ?LOG_ERROR("Invalid default handler config: ~p", [Reason]), + {error, {bad_config, {kernel, Reason}}} + end. + +-spec add_handlers(Application) -> ok | {error,term()} when + Application :: atom(); + (HandlerConfig) -> ok | {error,term()} when + HandlerConfig :: [config_handler()]. +%% This function is responsible for resolving the handler config +%% and then starting the correct handlers. This is done after the +%% kernel supervisor tree has been started as it needs the logger_sup. +add_handlers(kernel) -> + Env = get_logger_env(kernel), + case get_proxy_opts(Env) of + undefined -> + add_handlers(kernel,Env); + Opts -> + case set_proxy_config(Opts) of + ok -> add_handlers(kernel,Env); + {error, Reason} -> {error,{bad_proxy_config,Reason}} + end + end; +add_handlers(App) when is_atom(App) -> + add_handlers(App,get_logger_env(App)); +add_handlers(HandlerConfig) -> + add_handlers(application:get_application(),HandlerConfig). + +add_handlers(App,HandlerConfig) -> + try + check_logger_config(App,HandlerConfig), + DefaultAdded = + lists:foldl( + fun({handler, default = Id, Module, Config}, _) + when not is_map_key(filters, Config) -> + %% The default handler should have a couple of extra filters + %% set on it by default. + DefConfig = #{ filter_default => stop, + filters => get_default_handler_filters()}, + setup_handler(Id, Module, maps:merge(DefConfig,Config)), + true; + ({handler, Id, Module, Config}, Default) -> + setup_handler(Id, Module, Config), + Default orelse Id == default; + (_,Default) -> Default + end, false, HandlerConfig), + %% If a default handler was added we try to remove the simple_logger + %% If the simple logger exists it will replay its log events + %% to the handler(s) added in the fold above. + [case logger:remove_handler(simple) of + ok -> ok; + {error,{not_found,simple}} -> ok + end || DefaultAdded], + ok + catch throw:Reason0 -> + Reason = + case App of + undefined -> Reason0; + _ -> {App,Reason0} + end, + ?LOG_ERROR("Invalid logger handler config: ~p", [Reason]), + {error, {bad_config, {handler, Reason}}} + end. + +setup_handler(Id, Module, Config) -> + case logger:add_handler(Id, Module, Config) of + ok -> ok; + {error, Reason} -> throw(Reason) + end. + +check_logger_config(_,[]) -> + ok; +check_logger_config(App,[{handler,_,_,_}|Env]) -> + check_logger_config(App,Env); +check_logger_config(kernel,[{handler,default,undefined}|Env]) -> + check_logger_config(kernel,Env); +check_logger_config(kernel,[{filters,_,_}|Env]) -> + check_logger_config(kernel,Env); +check_logger_config(kernel,[{module_level,_,_}|Env]) -> + check_logger_config(kernel,Env); +check_logger_config(kernel,[{proxy,_}|Env]) -> + check_logger_config(kernel,Env); +check_logger_config(_,Bad) -> + throw(Bad). + +-spec get_logger_type(config_logger()) -> + {ok, standard_io | false | silent | + {file, file:name_all()} | + {file, file:name_all(), [file:mode()]}}. +get_logger_type(Env) -> + case application:get_env(kernel, error_logger) of + {ok, tty} -> + {ok, standard_io}; + {ok, {file, File}} when is_list(File) -> + {ok, {file, File}}; + {ok, false} -> + {ok, false}; + {ok, silent} -> + {ok, silent}; + undefined -> + case lists:member({handler,default,undefined}, Env) of + true -> + {ok, false}; + false -> + {ok, standard_io} % default value + end; + {ok, Bad} -> + throw({error_logger, Bad}) + end. + +get_logger_level() -> + case application:get_env(kernel,logger_level,info) of + Level when ?IS_LEVEL(Level); Level=:=all; Level=:=none -> + Level; + Level -> + throw({logger_level, Level}) + end. + +get_primary_filter_default(Env) -> + case lists:keyfind(filters,1,Env) of + {filters,Default,_} -> + Default; + false -> + log + end. + +get_primary_filters(Env) -> + case [F || F={filters,_,_} <- Env] of + [{filters,_,Filters}] -> + case lists:all(fun({_,_}) -> true; (_) -> false end,Filters) of + true -> Filters; + false -> throw({invalid_filters,Filters}) + end; + [] -> []; + _ -> throw({multiple_filters,Env}) + end. + +get_proxy_opts(Env) -> + case [P || P={proxy,_} <- Env] of + [{proxy,Opts}] -> Opts; + [] -> undefined; + _ -> throw({multiple_proxies,Env}) + end. + +%% This function looks at the kernel logger environment +%% and updates it so that the correct logger is configured +init_default_config(Type,Env) when Type==standard_io; + Type==standard_error; + element(1,Type)==file -> + DefaultFormatter = #{formatter=>{?DEFAULT_FORMATTER,?DEFAULT_FORMAT_CONFIG}}, + DefaultConfig = DefaultFormatter#{config=>#{type=>Type}}, + NewLoggerEnv = + case lists:keyfind(default, 2, Env) of + {handler, default, logger_std_h, Config} -> + %% Only want to add the logger_std_h config + %% if not configured by user AND the default + %% handler is still the logger_std_h. + lists:keyreplace(default, 2, Env, + {handler, default, logger_std_h, + maps:merge(DefaultConfig,Config)}); + {handler, default, Module,Config} -> + %% Add default formatter. The point of this + %% is to get the expected formatter config + %% for the default handler, since this + %% differs from the default values that + %% logger_formatter itself adds. + lists:keyreplace(default, 2, Env, + {handler, default, Module, + maps:merge(DefaultFormatter,Config)}); + _ -> + %% Nothing has been configured, use default + [{handler, default, logger_std_h, DefaultConfig} | Env] + end, + application:set_env(kernel, logger, NewLoggerEnv, [{timeout,infinity}]). + +get_default_handler_filters() -> + case application:get_env(kernel, logger_sasl_compatible, false) of + true -> + ?DEFAULT_HANDLER_FILTERS([otp]); + false -> + ?DEFAULT_HANDLER_FILTERS([otp,sasl]) + end. + +get_logger_env(App) -> + application:get_env(App, logger, []). + +%%%----------------------------------------------------------------- +%%% Internal +do_log(Level,Msg,#{mfa:={Module,_,_}}=Meta) -> + case logger_config:allow(?LOGGER_TABLE,Level,Module) of + true -> + log_allowed(#{},Level,Msg,Meta); + false -> + ok + end; +do_log(Level,Msg,Meta) -> + case logger_config:allow(?LOGGER_TABLE,Level) of + true -> + log_allowed(#{},Level,Msg,Meta); + false -> + ok + end. + +-spec log_allowed(Location,Level,Msg,Meta) -> ok when + Location :: location() | #{}, + Level :: level(), + Msg :: {msg_fun(),term()} | + {io:format(),[term()]} | + report() | + unicode:chardata(), + Meta :: metadata(). +log_allowed(Location,Level,{Fun,FunArgs},Meta) when is_function(Fun,1) -> + try Fun(FunArgs) of + Msg={Format,Args} when is_list(Format), is_list(Args) -> + log_allowed(Location,Level,Msg,Meta); + Report when ?IS_REPORT(Report) -> + log_allowed(Location,Level,Report,Meta); + String when ?IS_STRING(String) -> + log_allowed(Location,Level,String,Meta); + Other -> + log_allowed(Location,Level, + {"LAZY_FUN ERROR: ~tp; Returned: ~tp", + [{Fun,FunArgs},Other]}, + Meta) + catch C:R -> + log_allowed(Location,Level, + {"LAZY_FUN CRASH: ~tp; Reason: ~tp", + [{Fun,FunArgs},{C,R}]}, + Meta) + end; +log_allowed(Location,Level,Msg,Meta0) when is_map(Meta0) -> + %% Metadata priorities are: + %% Location (added in API macros) - will be overwritten by process + %% metadata (set by set_process_metadata/1), which in turn will be + %% overwritten by the metadata given as argument in the log call + %% (function or macro). + Meta = add_default_metadata( + maps:merge(Location,maps:merge(proc_meta(),Meta0))), + case node(maps:get(gl,Meta)) of + Node when Node=/=node() -> + log_remote(Node,Level,Msg,Meta); + _ -> + ok + end, + do_log_allowed(Level,Msg,Meta,tid()). + +do_log_allowed(Level,{Format,Args}=Msg,Meta,Tid) + when ?IS_LEVEL(Level), + is_list(Format), + is_list(Args), + is_map(Meta) -> + logger_backend:log_allowed(#{level=>Level,msg=>Msg,meta=>Meta},Tid); +do_log_allowed(Level,Report,Meta,Tid) + when ?IS_LEVEL(Level), + ?IS_REPORT(Report), + is_map(Meta) -> + logger_backend:log_allowed(#{level=>Level,msg=>{report,Report},meta=>Meta}, + Tid); +do_log_allowed(Level,String,Meta,Tid) + when ?IS_LEVEL(Level), + ?IS_STRING(String), + is_map(Meta) -> + logger_backend:log_allowed(#{level=>Level,msg=>{string,String},meta=>Meta}, + Tid). +tid() -> + ets:whereis(?LOGGER_TABLE). + +log_remote(Node,Level,{Format,Args},Meta) -> + log_remote(Node,{log,Level,Format,Args,Meta}); +log_remote(Node,Level,Msg,Meta) -> + log_remote(Node,{log,Level,Msg,Meta}). + +log_remote(Node,Request) -> + logger_proxy:log({remote,Node,Request}), + ok. + +add_default_metadata(Meta) -> + add_default_metadata([pid,gl,time],Meta). + +add_default_metadata([Key|Keys],Meta) -> + case maps:is_key(Key,Meta) of + true -> + add_default_metadata(Keys,Meta); + false -> + add_default_metadata(Keys,Meta#{Key=>default(Key)}) + end; +add_default_metadata([],Meta) -> + Meta. + +proc_meta() -> + case get_process_metadata() of + ProcMeta when is_map(ProcMeta) -> ProcMeta; + _ -> #{} + end. + +default(pid) -> self(); +default(gl) -> group_leader(); +default(time) -> timestamp(). + +%% Remove everything upto and including this module from the stacktrace +filter_stacktrace(Module,[{Module,_,_,_}|_]) -> + []; +filter_stacktrace(Module,[H|T]) -> + [H|filter_stacktrace(Module,T)]; +filter_stacktrace(_,[]) -> + []. diff --git a/lib/kernel/src/logger_backend.erl b/lib/kernel/src/logger_backend.erl new file mode 100644 index 0000000000..432c671afd --- /dev/null +++ b/lib/kernel/src/logger_backend.erl @@ -0,0 +1,133 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(logger_backend). + +-export([log_allowed/2]). + +-include("logger_internal.hrl"). + +-define(OWN_KEYS,[level,filters,filter_default,handlers]). + +%%%----------------------------------------------------------------- +%%% The default logger backend +log_allowed(Log, Tid) -> + {ok,Config} = logger_config:get(Tid,primary), + Filters = maps:get(filters,Config,[]), + case apply_filters(primary,Log,Filters,Config) of + stop -> + ok; + Log1 -> + Handlers = maps:get(handlers,Config,[]), + call_handlers(Log1,Handlers,Tid) + end, + ok. + +call_handlers(#{level:=Level}=Log,[Id|Handlers],Tid) -> + case logger_config:get(Tid,Id,Level) of + {ok,#{module:=Module}=Config} -> + Filters = maps:get(filters,Config,[]), + case apply_filters(Id,Log,Filters,Config) of + stop -> + ok; + Log1 -> + Config1 = maps:without(?OWN_KEYS,Config), + try Module:log(Log1,Config1) + catch C:R:S -> + case logger:remove_handler(Id) of + ok -> + logger:internal_log( + error,{removed_failing_handler,Id}), + ?LOG_INTERNAL( + debug, + [{logger,removed_failing_handler}, + {handler,{Id,Module}}, + {log_event,Log1}, + {config,Config1}, + {reason,{C,R,filter_stacktrace(S)}}]); + {error,{not_found,_}} -> + %% Probably already removed by other client + %% Don't report again + ok; + {error,Reason} -> + ?LOG_INTERNAL( + debug, + [{logger,remove_handler_failed}, + {reason,Reason}]) + end + end + end; + _ -> + ok + end, + call_handlers(Log,Handlers,Tid); +call_handlers(_Log,[],_Tid) -> + ok. + +apply_filters(Owner,Log,Filters,Config) -> + case do_apply_filters(Owner,Log,Filters,ignore) of + stop -> + stop; + ignore -> + case maps:get(filter_default,Config) of + log -> + Log; + stop -> + stop + end; + Log1 -> + Log1 + end. + +do_apply_filters(Owner,Log,[{_Id,{FilterFun,FilterArgs}}=Filter|Filters],State) -> + try FilterFun(Log,FilterArgs) of + stop -> + stop; + ignore -> + do_apply_filters(Owner,Log,Filters,State); + Log1=#{level:=Level,msg:=Msg,meta:=Meta} + when is_atom(Level), ?IS_MSG(Msg), is_map(Meta) -> + do_apply_filters(Owner,Log1,Filters,log); + Bad -> + handle_filter_failed(Filter,Owner,Log,{bad_return_value,Bad}) + catch C:R:S -> + handle_filter_failed(Filter,Owner,Log,{C,R,filter_stacktrace(S)}) + end; +do_apply_filters(_Owner,_Log,[],ignore) -> + ignore; +do_apply_filters(_Owner,Log,[],log) -> + Log. + +handle_filter_failed({Id,_}=Filter,Owner,Log,Reason) -> + case logger_server:remove_filter(Owner,Id) of + ok -> + logger:internal_log(error,{removed_failing_filter,Id}), + ?LOG_INTERNAL(debug, + [{logger,removed_failing_filter}, + {filter,Filter}, + {owner,Owner}, + {log_event,Log}, + {reason,Reason}]); + _ -> + ok + end, + ignore. + +filter_stacktrace(Stacktrace) -> + logger:filter_stacktrace(?MODULE,Stacktrace). diff --git a/lib/kernel/src/logger_config.erl b/lib/kernel/src/logger_config.erl new file mode 100644 index 0000000000..5024d20cfe --- /dev/null +++ b/lib/kernel/src/logger_config.erl @@ -0,0 +1,160 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(logger_config). + +-export([new/1,delete/2, + exist/2, + allow/2,allow/3, + get/2, get/3, + create/3, set/3, + set_module_level/3,unset_module_level/2, + get_module_level/1,cache_module_level/2, + level_to_int/1]). + +-include("logger_internal.hrl"). + +new(Name) -> + _ = ets:new(Name,[set,protected,named_table, + {read_concurrency,true}, + {write_concurrency,true}]), + ets:whereis(Name). + +delete(Tid,Id) -> + ets:delete(Tid,table_key(Id)). + +allow(Tid,Level,Module) -> + LevelInt = level_to_int(Level), + case ets:lookup(Tid,Module) of + [{Module,{ModLevel,cached}}] when is_integer(ModLevel), + LevelInt =< ModLevel -> + true; + [{Module,ModLevel}] when is_integer(ModLevel), + LevelInt =< ModLevel -> + true; + [] -> + logger_server:cache_module_level(Module), + allow(Tid,Level); + _ -> + false + end. + +allow(Tid,Level) -> + GlobalLevelInt = ets:lookup_element(Tid,?PRIMARY_KEY,2), + level_to_int(Level) =< GlobalLevelInt. + +exist(Tid,What) -> + ets:member(Tid,table_key(What)). + +get(Tid,What) -> + case ets:lookup(Tid,table_key(What)) of + [{_,_,Config}] -> + {ok,Config}; + [{_,Config}] when What=:=proxy -> + {ok,Config}; + [] -> + {error,{not_found,What}} + end. + +get(Tid,What,Level) -> + MS = [{{table_key(What),'$1','$2'}, + [{'>=','$1',level_to_int(Level)}], + ['$2']}], + case ets:select(Tid,MS) of + [] -> error; + [Data] -> {ok,Data} + end. + +create(Tid,proxy,Config) -> + ets:insert(Tid,{table_key(proxy),Config}); +create(Tid,What,Config) -> + LevelInt = level_to_int(maps:get(level,Config)), + ets:insert(Tid,{table_key(What),LevelInt,Config}). + +set(Tid,proxy,Config) -> + ets:insert(Tid,{table_key(proxy),Config}), + ok; +set(Tid,What,Config) -> + LevelInt = level_to_int(maps:get(level,Config)), + %% Should do this only if the level has actually changed. Possibly + %% overwrite instead of delete? + case What of + primary -> + _ = ets:select_delete(Tid,[{{'_',{'$1',cached}}, + [{'=/=','$1',LevelInt}], + [true]}]), + ok; + _ -> + ok + end, + ets:update_element(Tid,table_key(What),[{2,LevelInt},{3,Config}]), + ok. + +set_module_level(Tid,Modules,Level) -> + LevelInt = level_to_int(Level), + [ets:insert(Tid,{Module,LevelInt}) || Module <- Modules], + ok. + +%% should possibly overwrite instead of delete? +unset_module_level(Tid,all) -> + MS = [{{'$1','$2'},[{is_atom,'$1'},{is_integer,'$2'}],[true]}], + _ = ets:select_delete(Tid,MS), + ok; +unset_module_level(Tid,Modules) -> + [ets:delete(Tid,Module) || Module <- Modules], + ok. + +get_module_level(Tid) -> + MS = [{{'$1','$2'},[{is_atom,'$1'},{is_integer,'$2'}],[{{'$1','$2'}}]}], + Modules = ets:select(Tid,MS), + lists:sort([{M,int_to_level(L)} || {M,L} <- Modules]). + +cache_module_level(Tid,Module) -> + GlobalLevelInt = ets:lookup_element(Tid,?PRIMARY_KEY,2), + ets:insert_new(Tid,{Module,{GlobalLevelInt,cached}}), + ok. + +level_to_int(none) -> ?LOG_NONE; +level_to_int(emergency) -> ?EMERGENCY; +level_to_int(alert) -> ?ALERT; +level_to_int(critical) -> ?CRITICAL; +level_to_int(error) -> ?ERROR; +level_to_int(warning) -> ?WARNING; +level_to_int(notice) -> ?NOTICE; +level_to_int(info) -> ?INFO; +level_to_int(debug) -> ?DEBUG; +level_to_int(all) -> ?LOG_ALL. + +int_to_level(?LOG_NONE) -> none; +int_to_level(?EMERGENCY) -> emergency; +int_to_level(?ALERT) -> alert; +int_to_level(?CRITICAL) -> critical; +int_to_level(?ERROR) -> error; +int_to_level(?WARNING) -> warning; +int_to_level(?NOTICE) -> notice; +int_to_level(?INFO) -> info; +int_to_level(?DEBUG) -> debug; +int_to_level(?LOG_ALL) -> all. + +%%%----------------------------------------------------------------- +%%% Internal + +table_key(proxy) -> ?PROXY_KEY; +table_key(primary) -> ?PRIMARY_KEY; +table_key(HandlerId) -> {?HANDLER_KEY,HandlerId}. diff --git a/lib/kernel/src/logger_disk_log_h.erl b/lib/kernel/src/logger_disk_log_h.erl new file mode 100644 index 0000000000..47b39da900 --- /dev/null +++ b/lib/kernel/src/logger_disk_log_h.erl @@ -0,0 +1,252 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(logger_disk_log_h). + +-include("logger.hrl"). +-include("logger_internal.hrl"). +-include("logger_h_common.hrl"). + +%%% API +-export([filesync/1]). + +%% logger_h_common callbacks +-export([init/2, check_config/4, reset_state/2, + filesync/3, write/4, handle_info/3, terminate/3]). + +%% logger callbacks +-export([log/2, adding_handler/1, removing_handler/1, changing_config/3, + filter_config/1]). + +%%%=================================================================== +%%% API +%%%=================================================================== + +%%%----------------------------------------------------------------- +%%% +-spec filesync(Name) -> ok | {error,Reason} when + Name :: atom(), + Reason :: handler_busy | {badarg,term()}. + +filesync(Name) -> + logger_h_common:filesync(?MODULE,Name). + +%%%=================================================================== +%%% logger callbacks +%%%=================================================================== + +%%%----------------------------------------------------------------- +%%% Handler being added +adding_handler(Config) -> + logger_h_common:adding_handler(Config). + +%%%----------------------------------------------------------------- +%%% Updating handler config +changing_config(SetOrUpdate, OldConfig, NewConfig) -> + logger_h_common:changing_config(SetOrUpdate, OldConfig, NewConfig). + +%%%----------------------------------------------------------------- +%%% Handler being removed +removing_handler(Config) -> + logger_h_common:removing_handler(Config). + +%%%----------------------------------------------------------------- +%%% Log a string or report +-spec log(LogEvent, Config) -> ok when + LogEvent :: logger:log_event(), + Config :: logger:handler_config(). + +log(LogEvent, Config) -> + logger_h_common:log(LogEvent, Config). + +%%%----------------------------------------------------------------- +%%% Remove internal fields from configuration +filter_config(Config) -> + logger_h_common:filter_config(Config). + +%%%=================================================================== +%%% logger_h_common callbacks +%%%=================================================================== +init(Name, #{file:=File,type:=Type,max_no_bytes:=MNB,max_no_files:=MNF}) -> + case open_disk_log(Name, File, Type, MNB, MNF) of + ok -> + {ok,#{log_opts => #{file => File, + type => Type, + max_no_bytes => MNB, + max_no_files => MNF}, + prev_log_result => ok, + prev_sync_result => ok, + prev_disk_log_info => undefined}}; + Error -> + Error + end. + +check_config(Name,set,undefined,HConfig0) -> + HConfig=merge_default_logopts(Name,maps:merge(get_default_config(),HConfig0)), + check_config(HConfig); +check_config(_Name,SetOrUpdate,OldHConfig,NewHConfig0) -> + WriteOnce = maps:with([type,file,max_no_files,max_no_bytes],OldHConfig), + Default = + case SetOrUpdate of + set -> + %% Do not reset write-once fields to defaults + maps:merge(get_default_config(),WriteOnce); + update -> + OldHConfig + end, + + NewHConfig = maps:merge(Default,NewHConfig0), + + %% Fail if write-once fields are changed + case maps:with([type,file,max_no_files,max_no_bytes],NewHConfig) of + WriteOnce -> + check_config(NewHConfig); + Other -> + {Old,New} = logger_server:diff_maps(WriteOnce,Other), + {error,{illegal_config_change,?MODULE,Old,New}} + end. + +check_config(HConfig) -> + case check_h_config(maps:to_list(HConfig)) of + ok -> + {ok,HConfig}; + {error,{Key,Value}} -> + {error,{invalid_config,?MODULE,#{Key=>Value}}} + end. + +check_h_config([{file,File}|Config]) when is_list(File) -> + check_h_config(Config); +check_h_config([{max_no_files,undefined}|Config]) -> + check_h_config(Config); +check_h_config([{max_no_files,N}|Config]) when is_integer(N), N>0 -> + check_h_config(Config); +check_h_config([{max_no_bytes,infinity}|Config]) -> + check_h_config(Config); +check_h_config([{max_no_bytes,N}|Config]) when is_integer(N), N>0 -> + check_h_config(Config); +check_h_config([{type,Type}|Config]) when Type==wrap; Type==halt -> + check_h_config(Config); +check_h_config([Other | _]) -> + {error,Other}; +check_h_config([]) -> + ok. + +get_default_config() -> + #{}. + +merge_default_logopts(Name, HConfig) -> + Type = maps:get(type, HConfig, wrap), + {DefaultNoFiles,DefaultNoBytes} = + case Type of + halt -> {undefined,infinity}; + _wrap -> {10,1048576} + end, + {ok,Dir} = file:get_cwd(), + Defaults = #{file => filename:join(Dir,Name), + max_no_files => DefaultNoFiles, + max_no_bytes => DefaultNoBytes, + type => Type}, + maps:merge(Defaults, HConfig). + +filesync(Name,_Mode,State) -> + Result = ?disk_log_sync(Name), + maybe_notify_error(Name, filesync, Result, prev_sync_result, State). + +write(Name, Mode, Bin, State) -> + Result = ?disk_log_write(Name, Mode, Bin), + maybe_notify_error(Name, log, Result, prev_log_result, State). + +reset_state(_Name, State) -> + State#{prev_log_result => ok, + prev_sync_result => ok, + prev_disk_log_info => undefined}. + +%% The disk log owner must handle status messages from disk_log. +handle_info(Name, {disk_log, _Node, Log, Info={truncated,_NoLostItems}}, State) -> + maybe_notify_status(Name, Log, Info, prev_disk_log_info, State); +handle_info(Name, {disk_log, _Node, Log, Info = {blocked_log,_Items}}, State) -> + maybe_notify_status(Name, Log, Info, prev_disk_log_info, State); +handle_info(Name, {disk_log, _Node, Log, Info = full}, State) -> + maybe_notify_status(Name, Log, Info, prev_disk_log_info, State); +handle_info(Name, {disk_log, _Node, Log, Info = {error_status,_Status}}, State) -> + maybe_notify_status(Name, Log, Info, prev_disk_log_info, State); +handle_info(_, _, State) -> + State. + +terminate(Name, _Reason, _State) -> + _ = close_disk_log(Name, normal), + ok. + +%%%----------------------------------------------------------------- +%%% Internal functions +open_disk_log(Name, File, Type, MaxNoBytes, MaxNoFiles) -> + case filelib:ensure_dir(File) of + ok -> + Size = + if Type == halt -> MaxNoBytes; + Type == wrap -> {MaxNoBytes,MaxNoFiles} + end, + Opts = [{name, Name}, + {file, File}, + {size, Size}, + {type, Type}, + {linkto, self()}, + {repair, false}, + {format, external}, + {notify, true}, + {quiet, true}, + {mode, read_write}], + case disk_log:open(Opts) of + {ok,Name} -> + ok; + Error = {error,_Reason} -> + Error + end; + Error -> + Error + end. + +close_disk_log(Name, _) -> + _ = ?disk_log_sync(Name), + _ = disk_log:lclose(Name), + ok. + +disk_log_write(Name, sync, Bin) -> + disk_log:blog(Name, Bin); +disk_log_write(Name, async, Bin) -> + disk_log:balog(Name, Bin). + +%%%----------------------------------------------------------------- +%%% Print error messages, but don't repeat the same message +maybe_notify_error(Name, Op, Result, Key, #{log_opts:=LogOpts}=State) -> + {Result,error_notify_new({Name, Op, LogOpts, Result}, Result, Key, State)}. + +maybe_notify_status(Name, Log, Info, Key, State) -> + error_notify_new({disk_log, Name, Log, Info}, Info, Key, State). + +error_notify_new(Term, What, Key, State) -> + error_notify_new(What, maps:get(Key,State), Term), + State#{Key => What}. + +error_notify_new(ok,_Prev,_Term) -> + ok; +error_notify_new(Same,Same,_Term) -> + ok; +error_notify_new(_New,_Prev,Term) -> + logger_h_common:error_notify(Term). diff --git a/lib/kernel/src/logger_filters.erl b/lib/kernel/src/logger_filters.erl new file mode 100644 index 0000000000..0664c598e1 --- /dev/null +++ b/lib/kernel/src/logger_filters.erl @@ -0,0 +1,127 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(logger_filters). + +-export([domain/2, + level/2, + progress/2, + remote_gl/2]). + +-include("logger_internal.hrl"). +-define(IS_ACTION(A), (A==log orelse A==stop)). + +-spec domain(LogEvent,Extra) -> logger:filter_return() when + LogEvent :: logger:log_event(), + Extra :: {Action,Compare,MatchDomain}, + Action :: log | stop, + Compare :: super | sub | equal | not_equal | undefined, + MatchDomain :: list(atom()). +domain(#{meta:=Meta}=LogEvent,{Action,Compare,MatchDomain}) + when ?IS_ACTION(Action) andalso + (Compare==super orelse + Compare==sub orelse + Compare==equal orelse + Compare==not_equal orelse + Compare==undefined) andalso + is_list(MatchDomain) -> + filter_domain(Compare,Meta,MatchDomain,on_match(Action,LogEvent)); +domain(LogEvent,Extra) -> + erlang:error(badarg,[LogEvent,Extra]). + +-spec level(LogEvent,Extra) -> logger:filter_return() when + LogEvent :: logger:log_event(), + Extra :: {Action,Operator,MatchLevel}, + Action :: log | stop, + Operator :: neq | eq | lt | gt | lteq | gteq, + MatchLevel :: logger:level(). +level(#{level:=L1}=LogEvent,{Action,Op,L2}) + when ?IS_ACTION(Action) andalso + (Op==neq orelse + Op==eq orelse + Op==lt orelse + Op==gt orelse + Op==lteq orelse + Op==gteq) andalso + ?IS_LEVEL(L2) -> + filter_level(Op,L1,L2,on_match(Action,LogEvent)); +level(LogEvent,Extra) -> + erlang:error(badarg,[LogEvent,Extra]). + +-spec progress(LogEvent,Extra) -> logger:filter_return() when + LogEvent :: logger:log_event(), + Extra :: log | stop. +progress(LogEvent,Action) when ?IS_ACTION(Action) -> + filter_progress(LogEvent,on_match(Action,LogEvent)); +progress(LogEvent,Action) -> + erlang:error(badarg,[LogEvent,Action]). + +-spec remote_gl(LogEvent,Extra) -> logger:filter_return() when + LogEvent :: logger:log_event(), + Extra :: log | stop. +remote_gl(LogEvent,Action) when ?IS_ACTION(Action) -> + filter_remote_gl(LogEvent,on_match(Action,LogEvent)); +remote_gl(LogEvent,Action) -> + erlang:error(badarg,[LogEvent,Action]). + +%%%----------------------------------------------------------------- +%%% Internal +filter_domain(super,#{domain:=Domain},MatchDomain,OnMatch) -> + is_prefix(Domain,MatchDomain,OnMatch); +filter_domain(sub,#{domain:=Domain},MatchDomain,OnMatch) -> + is_prefix(MatchDomain,Domain,OnMatch); +filter_domain(equal,#{domain:=Domain},Domain,OnMatch) -> + OnMatch; +filter_domain(not_equal,#{domain:=Domain},MatchDomain,OnMatch) + when Domain=/=MatchDomain -> + OnMatch; +filter_domain(Compare,Meta,_,OnMatch) -> + case maps:is_key(domain,Meta) of + false when Compare==undefined; Compare==not_equal -> OnMatch; + _ -> ignore + end. + +is_prefix(D1,D2,OnMatch) when is_list(D1), is_list(D2) -> + case lists:prefix(D1,D2) of + true -> OnMatch; + false -> ignore + end; +is_prefix(_,_,_) -> + ignore. + +filter_level(Op,L1,L2,OnMatch) -> + case logger:compare_levels(L1,L2) of + eq when Op==eq; Op==lteq; Op==gteq -> OnMatch; + lt when Op==lt; Op==lteq; Op==neq -> OnMatch; + gt when Op==gt; Op==gteq; Op==neq -> OnMatch; + _ -> ignore + end. + +filter_progress(#{msg:={report,#{label:={_,progress}}}},OnMatch) -> + OnMatch; +filter_progress(_,_) -> + ignore. + +filter_remote_gl(#{meta:=#{gl:=GL}},OnMatch) when node(GL)=/=node() -> + OnMatch; +filter_remote_gl(_,_) -> + ignore. + +on_match(log,LogEvent) -> LogEvent; +on_match(stop,_) -> stop. diff --git a/lib/kernel/src/logger_formatter.erl b/lib/kernel/src/logger_formatter.erl new file mode 100644 index 0000000000..8696adbd72 --- /dev/null +++ b/lib/kernel/src/logger_formatter.erl @@ -0,0 +1,563 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(logger_formatter). + +-export([format/2]). +-export([check_config/1]). + +-include("logger_internal.hrl"). + +%%%----------------------------------------------------------------- +%%% Types +-type config() :: #{chars_limit => pos_integer() | unlimited, + depth => pos_integer() | unlimited, + legacy_header => boolean(), + max_size => pos_integer() | unlimited, + report_cb => logger:report_cb(), + single_line => boolean(), + template => template(), + time_designator => byte(), + time_offset => integer() | [byte()]}. +-type template() :: [metakey() | {metakey(),template(),template()} | string()]. +-type metakey() :: atom() | [atom()]. + +%%%----------------------------------------------------------------- +%%% API +-spec format(LogEvent,Config) -> unicode:chardata() when + LogEvent :: logger:log_event(), + Config :: config(). +format(#{level:=Level,msg:=Msg0,meta:=Meta},Config0) + when is_map(Config0) -> + Config = add_default_config(Config0), + Meta1 = maybe_add_legacy_header(Level,Meta,Config), + Template = maps:get(template,Config), + {BT,AT0} = lists:splitwith(fun(msg) -> false; (_) -> true end, Template), + {DoMsg,AT} = + case AT0 of + [msg|Rest] -> {true,Rest}; + _ ->{false,AT0} + end, + B = do_format(Level,Meta1,BT,Config), + A = do_format(Level,Meta1,AT,Config), + MsgStr = + if DoMsg -> + Config1 = + case maps:get(chars_limit,Config) of + unlimited -> + Config; + Size0 -> + Size = + case Size0 - io_lib:chars_length([B,A]) of + S when S>=0 -> S; + _ -> 0 + end, + Config#{chars_limit=>Size} + end, + MsgStr0 = format_msg(Msg0,Meta1,Config1), + case maps:get(single_line,Config) of + true -> + %% Trim leading and trailing whitespaces, and replace + %% newlines with ", " + T = lists:reverse( + trim( + lists:reverse( + trim(MsgStr0,false)),true)), + re:replace(T,",?\r?\n\s*",", ", + [{return,list},global,unicode]); + _false -> + MsgStr0 + end; + true -> + "" + end, + truncate(B,MsgStr,A,maps:get(max_size,Config)). + +trim([H|T],Rev) when H==$\s; H==$\r; H==$\n -> + trim(T,Rev); +trim([H|T],false) when is_list(H) -> + case trim(H,false) of + [] -> + trim(T,false); + TrimmedH -> + [TrimmedH|T] + end; +trim([H|T],true) when is_list(H) -> + case trim(lists:reverse(H),true) of + [] -> + trim(T,true); + TrimmedH -> + [lists:reverse(TrimmedH)|T] + end; +trim(String,_) -> + String. + +do_format(Level,Data,[level|Format],Config) -> + [to_string(level,Level,Config)|do_format(Level,Data,Format,Config)]; +do_format(Level,Data,[{Key,IfExist,Else}|Format],Config) -> + String = + case value(Key,Data) of + {ok,Value} -> do_format(Level,Data#{Key=>Value},IfExist,Config); + error -> do_format(Level,Data,Else,Config) + end, + [String|do_format(Level,Data,Format,Config)]; +do_format(Level,Data,[Key|Format],Config) + when is_atom(Key) orelse + (is_list(Key) andalso is_atom(hd(Key))) -> + String = + case value(Key,Data) of + {ok,Value} -> to_string(Key,Value,Config); + error -> "" + end, + [String|do_format(Level,Data,Format,Config)]; +do_format(Level,Data,[Str|Format],Config) -> + [Str|do_format(Level,Data,Format,Config)]; +do_format(_Level,_Data,[],_Config) -> + []. + +value(Key,Meta) when is_map_key(Key,Meta) -> + {ok,maps:get(Key,Meta)}; +value([Key|Keys],Meta) when is_map_key(Key,Meta) -> + value(Keys,maps:get(Key,Meta)); +value([],Value) -> + {ok,Value}; +value(_,_) -> + error. + +to_string(time,Time,Config) -> + format_time(Time,Config); +to_string(mfa,MFA,Config) -> + format_mfa(MFA,Config); +to_string(_,Value,Config) -> + to_string(Value,Config). + +to_string(X,_) when is_atom(X) -> + atom_to_list(X); +to_string(X,_) when is_integer(X) -> + integer_to_list(X); +to_string(X,_) when is_pid(X) -> + pid_to_list(X); +to_string(X,_) when is_reference(X) -> + ref_to_list(X); +to_string(X,Config) when is_list(X) -> + case printable_list(lists:flatten(X)) of + true -> X; + _ -> io_lib:format(p(Config),[X]) + end; +to_string(X,Config) -> + io_lib:format(p(Config),[X]). + +printable_list([]) -> + false; +printable_list(X) -> + io_lib:printable_list(X). + +format_msg({string,Chardata},Meta,Config) -> + format_msg({"~ts",[Chardata]},Meta,Config); +format_msg({report,_}=Msg,Meta,#{report_cb:=Fun}=Config) + when is_function(Fun,1); is_function(Fun,2) -> + format_msg(Msg,Meta#{report_cb=>Fun},maps:remove(report_cb,Config)); +format_msg({report,Report},#{report_cb:=Fun}=Meta,Config) when is_function(Fun,1) -> + try Fun(Report) of + {Format,Args} when is_list(Format), is_list(Args) -> + format_msg({Format,Args},maps:remove(report_cb,Meta),Config); + Other -> + P = p(Config), + format_msg({"REPORT_CB/1 ERROR: "++P++"; Returned: "++P, + [Report,Other]},Meta,Config) + catch C:R:S -> + P = p(Config), + format_msg({"REPORT_CB/1 CRASH: "++P++"; Reason: "++P, + [Report,{C,R,logger:filter_stacktrace(?MODULE,S)}]}, + Meta,Config) + end; +format_msg({report,Report},#{report_cb:=Fun}=Meta,Config) when is_function(Fun,2) -> + try Fun(Report,maps:with([depth,chars_limit,single_line],Config)) of + Chardata when ?IS_STRING(Chardata) -> + try chardata_to_list(Chardata) % already size limited by report_cb + catch _:_ -> + P = p(Config), + format_msg({"REPORT_CB/2 ERROR: "++P++"; Returned: "++P, + [Report,Chardata]},Meta,Config) + end; + Other -> + P = p(Config), + format_msg({"REPORT_CB/2 ERROR: "++P++"; Returned: "++P, + [Report,Other]},Meta,Config) + catch C:R:S -> + P = p(Config), + format_msg({"REPORT_CB/2 CRASH: "++P++"; Reason: "++P, + [Report,{C,R,logger:filter_stacktrace(?MODULE,S)}]}, + Meta,Config) + end; +format_msg({report,Report},Meta,Config) -> + format_msg({report,Report}, + Meta#{report_cb=>fun logger:format_report/1}, + Config); +format_msg(Msg,_Meta,#{depth:=Depth,chars_limit:=CharsLimit, + single_line:=Single}) -> + Opts = chars_limit_to_opts(CharsLimit), + format_msg(Msg, Depth, Opts, Single). + +chars_limit_to_opts(unlimited) -> []; +chars_limit_to_opts(CharsLimit) -> [{chars_limit,CharsLimit}]. + +format_msg({Format0,Args},Depth,Opts,Single) -> + try + Format1 = io_lib:scan_format(Format0, Args), + Format = reformat(Format1, Depth, Single), + io_lib:build_text(Format,Opts) + catch C:R:S -> + P = p(Single), + FormatError = "FORMAT ERROR: "++P++" - "++P, + case Format0 of + FormatError -> + %% already been here - avoid failing cyclically + erlang:raise(C,R,S); + _ -> + format_msg({FormatError,[Format0,Args]},Depth,Opts,Single) + end + end. + +reformat(Format,unlimited,false) -> + Format; +reformat([#{control_char:=C}=M|T], Depth, true) when C =:= $p -> + [limit_depth(M#{width => 0}, Depth)|reformat(T, Depth, true)]; +reformat([#{control_char:=C}=M|T], Depth, true) when C =:= $P -> + [M#{width => 0}|reformat(T, Depth, true)]; +reformat([#{control_char:=C}=M|T], Depth, Single) when C =:= $p; C =:= $w -> + [limit_depth(M, Depth)|reformat(T, Depth, Single)]; +reformat([H|T], Depth, Single) -> + [H|reformat(T, Depth, Single)]; +reformat([], _, _) -> + []. + +limit_depth(M0, unlimited) -> + M0; +limit_depth(#{control_char:=C0, args:=Args}=M0, Depth) -> + C = C0 - ($a - $A), %To uppercase. + M0#{control_char:=C,args:=Args++[Depth]}. + +chardata_to_list(Chardata) -> + case unicode:characters_to_list(Chardata,unicode) of + List when is_list(List) -> + List; + Error -> + throw(Error) + end. + +truncate(B,Msg,A,unlimited) -> + [B,Msg,A]; +truncate(B,Msg,A,Size) -> + String = [B,Msg,A], + Length = io_lib:chars_length(String), + if Length>Size -> + {Last,FlatString} = + case A of + [] -> + case Msg of + [] -> + {get_last(B),lists:flatten(B)}; + _ -> + {get_last(Msg),lists:flatten([B,Msg])} + end; + _ -> + {get_last(A),lists:flatten(String)} + end, + case Last of + $\n-> + lists:sublist(FlatString,1,Size-4)++"...\n"; + _ -> + lists:sublist(FlatString,1,Size-3)++"..." + end; + true -> + String + end. + +get_last(L) -> + get_first(lists:reverse(L)). + +get_first([]) -> + error; +get_first([C|_]) when is_integer(C) -> + C; +get_first([L|Rest]) when is_list(L) -> + case get_last(L) of + error -> get_first(Rest); + First -> First + end. + +%% SysTime is the system time in microseconds +format_time(SysTime,#{time_offset:=Offset,time_designator:=Des}) + when is_integer(SysTime) -> + calendar:system_time_to_rfc3339(SysTime,[{unit,microsecond}, + {offset,Offset}, + {time_designator,Des}]). + +%% SysTime is the system time in microseconds +timestamp_to_datetimemicro(SysTime,Config) when is_integer(SysTime) -> + Micro = SysTime rem 1000000, + Sec = SysTime div 1000000, + UniversalTime = erlang:posixtime_to_universaltime(Sec), + {{Date,Time},UtcStr} = + case offset_to_utc(maps:get(time_offset,Config)) of + true -> {UniversalTime,"UTC "}; + _ -> {erlang:universaltime_to_localtime(UniversalTime),""} + end, + {Date,Time,Micro,UtcStr}. + +format_mfa({M,F,A},_) when is_atom(M), is_atom(F), is_integer(A) -> + atom_to_list(M)++":"++atom_to_list(F)++"/"++integer_to_list(A); +format_mfa({M,F,A},Config) when is_atom(M), is_atom(F), is_list(A) -> + format_mfa({M,F,length(A)},Config); +format_mfa(MFA,Config) -> + to_string(MFA,Config). + +maybe_add_legacy_header(Level, + #{time:=Timestamp}=Meta, + #{legacy_header:=true}=Config) -> + #{title:=Title}=MyMeta = add_legacy_title(Level,Meta,Config), + {{Y,Mo,D},{H,Mi,S},Micro,UtcStr} = + timestamp_to_datetimemicro(Timestamp,Config), + Header = + io_lib:format("=~ts==== ~w-~s-~4w::~2..0w:~2..0w:~2..0w.~6..0w ~s===", + [Title,D,month(Mo),Y,H,Mi,S,Micro,UtcStr]), + Meta#{?MODULE=>MyMeta#{header=>Header}}; +maybe_add_legacy_header(_,Meta,_) -> + Meta. + +add_legacy_title(_Level,#{?MODULE:=#{title:=_}=MyMeta},_) -> + MyMeta; +add_legacy_title(Level,Meta,Config) -> + case maps:get(?MODULE,Meta,#{}) of + #{title:=_}=MyMeta -> + MyMeta; + MyMeta -> + TitleLevel = + case (Level=:=notice andalso maps:find(error_logger,Meta)) of + {ok,_} -> + maps:get(error_logger_notice_header,Config); + _ -> + Level + end, + Title = string:uppercase(atom_to_list(TitleLevel)) ++ " REPORT", + MyMeta#{title=>Title} + end. + +month(1) -> "Jan"; +month(2) -> "Feb"; +month(3) -> "Mar"; +month(4) -> "Apr"; +month(5) -> "May"; +month(6) -> "Jun"; +month(7) -> "Jul"; +month(8) -> "Aug"; +month(9) -> "Sep"; +month(10) -> "Oct"; +month(11) -> "Nov"; +month(12) -> "Dec". + +%% Ensure that all valid configuration parameters exist in the final +%% configuration map +add_default_config(Config0) -> + Default = + #{chars_limit=>unlimited, + error_logger_notice_header=>info, + legacy_header=>false, + single_line=>true, + time_designator=>$T}, + MaxSize = get_max_size(maps:get(max_size,Config0,undefined)), + Depth = get_depth(maps:get(depth,Config0,undefined)), + Offset = get_offset(maps:get(time_offset,Config0,undefined)), + add_default_template(maps:merge(Default,Config0#{max_size=>MaxSize, + depth=>Depth, + time_offset=>Offset})). + +add_default_template(#{template:=_}=Config) -> + Config; +add_default_template(Config) -> + Config#{template=>default_template(Config)}. + +default_template(#{legacy_header:=true}) -> + ?DEFAULT_FORMAT_TEMPLATE_HEADER; +default_template(#{single_line:=true}) -> + ?DEFAULT_FORMAT_TEMPLATE_SINGLE; +default_template(_) -> + ?DEFAULT_FORMAT_TEMPLATE. + +get_max_size(undefined) -> + unlimited; +get_max_size(S) -> + max(10,S). + +get_depth(undefined) -> + error_logger:get_format_depth(); +get_depth(S) -> + max(5,S). + +get_offset(undefined) -> + utc_to_offset(get_utc_config()); +get_offset(Offset) -> + Offset. + +utc_to_offset(true) -> + "Z"; +utc_to_offset(false) -> + "". + +get_utc_config() -> + %% SASL utc_log overrides stdlib config - in order to have uniform + %% timestamps in log messages + case application:get_env(sasl, utc_log) of + {ok, Val} when is_boolean(Val) -> Val; + _ -> + case application:get_env(stdlib, utc_log) of + {ok, Val} when is_boolean(Val) -> Val; + _ -> false + end + end. + +offset_to_utc(Z) when Z=:=0; Z=:="z"; Z=:="Z" -> + true; +offset_to_utc([$+|Tz]) -> + case io_lib:fread("~d:~d", Tz) of + {ok, [0, 0], []} -> + true; + _ -> + false + end; +offset_to_utc(_) -> + false. + +-spec check_config(Config) -> ok | {error,term()} when + Config :: config(). +check_config(Config) when is_map(Config) -> + do_check_config(maps:to_list(Config)); +check_config(Config) -> + {error,{invalid_formatter_config,?MODULE,Config}}. + +do_check_config([{Type,L}|Config]) when Type == chars_limit; + Type == depth; + Type == max_size -> + case check_limit(L) of + ok -> do_check_config(Config); + error -> {error,{invalid_formatter_config,?MODULE,{Type,L}}} + end; +do_check_config([{single_line,SL}|Config]) when is_boolean(SL) -> + do_check_config(Config); +do_check_config([{legacy_header,LH}|Config]) when is_boolean(LH) -> + do_check_config(Config); +do_check_config([{error_logger_notice_header,ELNH}|Config]) when ELNH == info; + ELNH == notice -> + do_check_config(Config); +do_check_config([{report_cb,RCB}|Config]) when is_function(RCB,1); + is_function(RCB,2) -> + do_check_config(Config); +do_check_config([{template,T}|Config]) -> + case check_template(T) of + ok -> do_check_config(Config); + error -> {error,{invalid_formatter_template,?MODULE,T}} + end; +do_check_config([{time_offset,Offset}|Config]) -> + case check_offset(Offset) of + ok -> + do_check_config(Config); + error -> + {error,{invalid_formatter_config,?MODULE,{time_offset,Offset}}} + end; +do_check_config([{time_designator,Char}|Config]) when Char>=0, Char=<255 -> + case io_lib:printable_latin1_list([Char]) of + true -> + do_check_config(Config); + false -> + {error,{invalid_formatter_config,?MODULE,{time_designator,Char}}} + end; +do_check_config([C|_]) -> + {error,{invalid_formatter_config,?MODULE,C}}; +do_check_config([]) -> + ok. + +check_limit(L) when is_integer(L), L>0 -> + ok; +check_limit(unlimited) -> + ok; +check_limit(_) -> + error. + +check_template([Key|T]) when is_atom(Key) -> + check_template(T); +check_template([Key|T]) when is_list(Key), is_atom(hd(Key)) -> + case lists:all(fun(X) when is_atom(X) -> true; + (_) -> false + end, + Key) of + true -> + check_template(T); + false -> + error + end; +check_template([{Key,IfExist,Else}|T]) + when is_atom(Key) orelse + (is_list(Key) andalso is_atom(hd(Key))) -> + case check_template(IfExist) of + ok -> + case check_template(Else) of + ok -> + check_template(T); + error -> + error + end; + error -> + error + end; +check_template([Str|T]) when is_list(Str) -> + case io_lib:printable_unicode_list(Str) of + true -> check_template(T); + false -> error + end; +check_template([]) -> + ok; +check_template(_) -> + error. + +check_offset(I) when is_integer(I) -> + ok; +check_offset(Tz) when Tz=:=""; Tz=:="Z"; Tz=:="z" -> + ok; +check_offset([Sign|Tz]) when Sign=:=$+; Sign=:=$- -> + check_timezone(Tz); +check_offset(_) -> + error. + +check_timezone(Tz) -> + try io_lib:fread("~d:~d", Tz) of + {ok, [_, _], []} -> + ok; + _ -> + error + catch _:_ -> + error + end. + +p(#{single_line:=Single}) -> + p(Single); +p(true) -> + "~0tp"; +p(false) -> + "~tp". diff --git a/lib/kernel/src/logger_h_common.erl b/lib/kernel/src/logger_h_common.erl new file mode 100644 index 0000000000..16946ff97c --- /dev/null +++ b/lib/kernel/src/logger_h_common.erl @@ -0,0 +1,463 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(logger_h_common). +-behaviour(gen_server). + +-include("logger_h_common.hrl"). +-include("logger_internal.hrl"). + +%% API +-export([filesync/2]). + +%% logger_olp callbacks +-export([init/1, handle_load/2, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3, notify/2, reset_state/1]). + +%% logger callbacks +-export([log/2, adding_handler/1, removing_handler/1, changing_config/3, + filter_config/1]). + +%% Library functions for handlers +-export([error_notify/1]). + +-define(OLP_KEYS,[sync_mode_qlen, + drop_mode_qlen, + flush_qlen, + burst_limit_enable, + burst_limit_max_count, + burst_limit_window_time, + overload_kill_enable, + overload_kill_qlen, + overload_kill_mem_size, + overload_kill_restart_after]). + +-define(COMMON_KEYS,[filesync_repeat_interval]). + +-define(READ_ONLY_KEYS,[olp]). + +%%%----------------------------------------------------------------- +%%% API + +%% This function is called by the logger_sup supervisor +filesync(Module, Name) -> + call(Module, Name, filesync). + +%%%----------------------------------------------------------------- +%%% Handler being added +adding_handler(#{id:=Name,module:=Module}=Config) -> + HConfig0 = maps:get(config, Config, #{}), + HandlerConfig0 = maps:without(?OLP_KEYS++?COMMON_KEYS,HConfig0), + case Module:check_config(Name,set,undefined,HandlerConfig0) of + {ok,HandlerConfig} -> + ModifiedCommon = maps:with(?COMMON_KEYS,HandlerConfig), + CommonConfig0 = maps:with(?COMMON_KEYS,HConfig0), + CommonConfig = maps:merge( + maps:merge(get_default_config(), CommonConfig0), + ModifiedCommon), + case check_config(CommonConfig) of + ok -> + HConfig = maps:merge(CommonConfig,HandlerConfig), + OlpOpts = maps:with(?OLP_KEYS,HConfig0), + start(OlpOpts, Config#{config => HConfig}); + {error,Faulty} -> + {error,{invalid_config,Module,Faulty}} + end; + Error -> + Error + end. + +%%%----------------------------------------------------------------- +%%% Handler being removed +removing_handler(#{id:=Name, module:=Module, config:=#{olp:=Olp}}) -> + case whereis(?name_to_reg_name(Module,Name)) of + undefined -> + ok; + _Pid -> + %% We don't want to do supervisor:terminate_child here + %% since we need to distinguish this explicit stop from a + %% system termination in order to avoid circular attempts + %% at removing the handler (implying deadlocks and + %% timeouts). + %% And we don't need to do supervisor:delete_child, since + %% the restart type is temporary, which means that the + %% child specification is automatically removed from the + %% supervisor when the process dies. + _ = logger_olp:stop(Olp), + ok + end. + +%%%----------------------------------------------------------------- +%%% Updating handler config +changing_config(SetOrUpdate, + #{id:=Name,config:=OldHConfig,module:=Module}, + NewConfig0) -> + NewHConfig0 = maps:get(config, NewConfig0, #{}), + NoHandlerKeys = ?OLP_KEYS++?COMMON_KEYS++?READ_ONLY_KEYS, + OldHandlerConfig = maps:without(NoHandlerKeys,OldHConfig), + NewHandlerConfig0 = maps:without(NoHandlerKeys,NewHConfig0), + case Module:check_config(Name, SetOrUpdate, + OldHandlerConfig,NewHandlerConfig0) of + {ok, NewHandlerConfig} -> + ModifiedCommon = maps:with(?COMMON_KEYS,NewHandlerConfig), + NewCommonConfig0 = maps:with(?COMMON_KEYS,NewHConfig0), + OldCommonConfig = maps:with(?COMMON_KEYS,OldHConfig), + CommonDefault = + case SetOrUpdate of + set -> + get_default_config(); + update -> + OldCommonConfig + end, + NewCommonConfig = maps:merge( + maps:merge(CommonDefault,NewCommonConfig0), + ModifiedCommon), + case check_config(NewCommonConfig) of + ok -> + OlpDefault = + case SetOrUpdate of + set -> + logger_olp:get_default_opts(); + update -> + maps:with(?OLP_KEYS,OldHConfig) + end, + Olp = maps:get(olp,OldHConfig), + NewOlpOpts = maps:merge(OlpDefault, + maps:with(?OLP_KEYS,NewHConfig0)), + case logger_olp:set_opts(Olp,NewOlpOpts) of + ok -> + logger_olp:cast(Olp, {config_changed, + NewCommonConfig, + NewHandlerConfig}), + ReadOnly = maps:with(?READ_ONLY_KEYS,OldHConfig), + NewHConfig = + maps:merge( + maps:merge( + maps:merge(NewCommonConfig,NewHandlerConfig), + ReadOnly), + NewOlpOpts), + NewConfig = NewConfig0#{config=>NewHConfig}, + {ok,NewConfig}; + Error -> + Error + end; + {error,Faulty} -> + {error,{invalid_config,Module,Faulty}} + end; + Error -> + Error + end. + +%%%----------------------------------------------------------------- +%%% Log a string or report +-spec log(LogEvent, Config) -> ok when + LogEvent :: logger:log_event(), + Config :: logger:handler_config(). + +log(LogEvent, Config = #{config := #{olp:=Olp}}) -> + %% if the handler has crashed, we must drop this event + %% and hope the handler restarts so we can try again + true = is_process_alive(logger_olp:get_pid(Olp)), + Bin = log_to_binary(LogEvent, Config), + logger_olp:load(Olp,Bin). + +%%%----------------------------------------------------------------- +%%% Remove internal fields from configuration +filter_config(#{config:=HConfig}=Config) -> + Config#{config=>maps:without(?READ_ONLY_KEYS,HConfig)}. + +%%%----------------------------------------------------------------- +%%% Start the handler process +%%% +%%% The process must always exist if the handler is registered with +%%% logger (and must not exist if the handler is not registered). +%%% +%%% The handler process is linked to logger_sup, which is part of the +%%% kernel application's supervision tree. +start(OlpOpts0, #{id := Name, module:=Module, config:=HConfig} = Config0) -> + RegName = ?name_to_reg_name(Module,Name), + ChildSpec = + #{id => Name, + start => {logger_olp, start_link, [RegName,?MODULE, + Config0, OlpOpts0]}, + restart => temporary, + shutdown => 2000, + type => worker, + modules => [?MODULE]}, + case supervisor:start_child(logger_sup, ChildSpec) of + {ok,Pid,Olp} -> + ok = logger_handler_watcher:register_handler(Name,Pid), + OlpOpts = logger_olp:get_opts(Olp), + {ok,Config0#{config=>(maps:merge(HConfig,OlpOpts))#{olp=>Olp}}}; + {error,{Reason,Ch}} when is_tuple(Ch), element(1,Ch)==child -> + {error,Reason}; + Error -> + Error + end. + +%%%=================================================================== +%%% gen_server callbacks +%%%=================================================================== + +init(#{id := Name, module := Module, config := HConfig}) -> + process_flag(trap_exit, true), + + ?init_test_hooks(), + + case Module:init(Name, HConfig) of + {ok,HState} -> + %% Storing common config in state to avoid copying + %% (sending) the config data for each log message + CommonConfig = maps:with(?COMMON_KEYS,HConfig), + State = CommonConfig#{id => Name, + module => Module, + ctrl_sync_count => + ?CONTROLLER_SYNC_INTERVAL, + last_op => sync, + handler_state => HState}, + State1 = set_repeated_filesync(State), + {ok,State1}; + Error -> + Error + end. + +%% This is the log event. +handle_load(Bin, #{id:=Name, + module:=Module, + handler_state:=HandlerState, + ctrl_sync_count := CtrlSync}=State) -> + if CtrlSync==0 -> + {_,HS1} = Module:write(Name, sync, Bin, HandlerState), + State#{handler_state => HS1, + ctrl_sync_count => ?CONTROLLER_SYNC_INTERVAL, + last_op=>write}; + true -> + {_,HS1} = Module:write(Name, async, Bin, HandlerState), + State#{handler_state => HS1, + ctrl_sync_count => CtrlSync-1, + last_op=>write} + end. + +handle_call(filesync, _From, State = #{id := Name, + module := Module, + handler_state := HandlerState}) -> + {Result,HandlerState1} = Module:filesync(Name,sync,HandlerState), + {reply, Result, State#{handler_state=>HandlerState1, last_op=>sync}}. + +%% If FILESYNC_REPEAT_INTERVAL is set to a millisec value, this +%% clause gets called repeatedly by the handler. In order to +%% guarantee that a filesync *always* happens after the last log +%% event, the repeat operation must be active! +handle_cast(repeated_filesync,State = #{filesync_repeat_interval := no_repeat}) -> + %% This clause handles a race condition which may occur when + %% config changes filesync_repeat_interval from an integer value + %% to no_repeat. + {noreply,State}; +handle_cast(repeated_filesync, + State = #{id := Name, + module := Module, + handler_state := HandlerState, + last_op := LastOp}) -> + State1 = + if LastOp == sync -> + State; + true -> + {_,HS} = Module:filesync(Name, async, HandlerState), + State#{handler_state => HS, last_op => sync} + end, + {noreply,set_repeated_filesync(State1)}; +handle_cast({config_changed, CommonConfig, HConfig}, + State = #{id := Name, + module := Module, + handler_state := HandlerState, + filesync_repeat_interval := OldFSyncInt}) -> + State1 = + case maps:get(filesync_repeat_interval,CommonConfig) of + OldFSyncInt -> + State; + FSyncInt -> + set_repeated_filesync( + cancel_repeated_filesync( + State#{filesync_repeat_interval=>FSyncInt})) + end, + HS = try Module:config_changed(Name, HConfig, HandlerState) + catch error:undef -> HandlerState + end, + {noreply, State1#{handler_state => HS}}. + +handle_info(Info, #{id := Name, module := Module, + handler_state := HandlerState} = State) -> + {noreply,State#{handler_state => Module:handle_info(Name,Info,HandlerState)}}. + +terminate(overloaded=Reason, #{id:=Name}=State) -> + _ = log_handler_info(Name,"Handler ~p overloaded and stopping",[Name],State), + do_terminate(Reason,State), + ConfigResult = logger:get_handler_config(Name), + case ConfigResult of + {ok,#{module:=Module}=HConfig0} -> + spawn(fun() -> logger:remove_handler(Name) end), + HConfig = try Module:filter_config(HConfig0) + catch _:_ -> HConfig0 + end, + {ok,fun() -> logger:add_handler(Name,Module,HConfig) end}; + Error -> + error_notify({Name,restart_impossible,Error}), + Error + end; +terminate(Reason, State) -> + do_terminate(Reason, State). + +do_terminate(Reason, State = #{id := Name, + module := Module, + handler_state := HandlerState}) -> + _ = cancel_repeated_filesync(State), + _ = Module:terminate(Name, Reason, HandlerState), + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, State}. + +reset_state(#{id:=Name, module:=Module, handler_state:=HandlerState} = State) -> + State#{handler_state=>Module:reset_state(Name, HandlerState)}. + +%%%----------------------------------------------------------------- +%%% Internal functions +call(Module, Name, Op) when is_atom(Name) -> + case logger_olp:call(?name_to_reg_name(Module,Name), Op) of + {error,busy} -> {error,handler_busy}; + Other -> Other + end; +call(_, Name, Op) -> + {error,{badarg,{Op,[Name]}}}. + +notify({mode_change,Mode0,Mode1},#{id:=Name}=State) -> + log_handler_info(Name,"Handler ~p switched from ~p to ~p mode", + [Name,Mode0,Mode1], State); +notify({flushed,Flushed},#{id:=Name}=State) -> + log_handler_info(Name, "Handler ~p flushed ~w log events", + [Name,Flushed], State); +notify(restart,#{id:=Name}=State) -> + log_handler_info(Name, "Handler ~p restarted", [Name], State); +notify(idle,#{id:=Name,module:=Module,handler_state:=HandlerState}=State) -> + {_,HS} = Module:filesync(Name,async,HandlerState), + State#{handler_state=>HS, last_op=>sync}. + +log_handler_info(Name, Format, Args, #{module:=Module, + handler_state:=HandlerState}=State) -> + Config = + case logger:get_handler_config(Name) of + {ok,Conf} -> Conf; + _ -> #{formatter=>{?DEFAULT_FORMATTER,?DEFAULT_FORMAT_CONFIG}} + end, + Meta = #{time=>logger:timestamp()}, + Bin = log_to_binary(#{level => notice, + msg => {Format,Args}, + meta => Meta}, Config), + {_,HS} = Module:write(Name, async, Bin, HandlerState), + State#{handler_state=>HS, last_op=>write}. + +%%%----------------------------------------------------------------- +%%% Convert log data on any form to binary +-spec log_to_binary(LogEvent,Config) -> LogString when + LogEvent :: logger:log_event(), + Config :: logger:handler_config(), + LogString :: binary(). +log_to_binary(#{msg:={report,_},meta:=#{report_cb:=_}}=Log,Config) -> + do_log_to_binary(Log,Config); +log_to_binary(#{msg:={report,_},meta:=Meta}=Log,Config) -> + DefaultReportCb = fun logger:format_otp_report/1, + do_log_to_binary(Log#{meta=>Meta#{report_cb=>DefaultReportCb}},Config); +log_to_binary(Log,Config) -> + do_log_to_binary(Log,Config). + +do_log_to_binary(Log,Config) -> + {Formatter,FormatterConfig} = + maps:get(formatter,Config,{?DEFAULT_FORMATTER,?DEFAULT_FORMAT_CONFIG}), + String = try_format(Log,Formatter,FormatterConfig), + try string_to_binary(String) + catch C2:R2:S2 -> + ?LOG_INTERNAL(debug,[{formatter_error,Formatter}, + {config,FormatterConfig}, + {log_event,Log}, + {bad_return_value,String}, + {catched,{C2,R2,S2}}]), + <<"FORMATTER ERROR: bad return value">> + end. + +try_format(Log,Formatter,FormatterConfig) -> + try Formatter:format(Log,FormatterConfig) + catch + C:R:S -> + ?LOG_INTERNAL(debug,[{formatter_crashed,Formatter}, + {config,FormatterConfig}, + {log_event,Log}, + {reason, + {C,R,logger:filter_stacktrace(?MODULE,S)}}]), + case {?DEFAULT_FORMATTER,#{}} of + {Formatter,FormatterConfig} -> + "DEFAULT FORMATTER CRASHED"; + {DefaultFormatter,DefaultConfig} -> + try_format(Log#{msg=>{"FORMATTER CRASH: ~tp", + [maps:get(msg,Log)]}}, + DefaultFormatter,DefaultConfig) + end + end. + +string_to_binary(String) -> + case unicode:characters_to_binary(String) of + Binary when is_binary(Binary) -> + Binary; + Error -> + throw(Error) + end. + +%%%----------------------------------------------------------------- +%%% Check that the configuration term is valid +check_config(Config) when is_map(Config) -> + check_common_config(maps:to_list(Config)). + +check_common_config([{filesync_repeat_interval,NorA}|Config]) + when is_integer(NorA); NorA == no_repeat -> + check_common_config(Config); +check_common_config([{Key,Value}|_]) -> + {error,#{Key=>Value}}; +check_common_config([]) -> + ok. + +get_default_config() -> + #{filesync_repeat_interval => ?FILESYNC_REPEAT_INTERVAL}. + +set_repeated_filesync(#{filesync_repeat_interval:=FSyncInt} = State) + when is_integer(FSyncInt) -> + {ok,TRef} = timer:apply_after(FSyncInt, gen_server, cast, + [self(),repeated_filesync]), + State#{rep_sync_tref=>TRef}; +set_repeated_filesync(State) -> + State. + +cancel_repeated_filesync(State) -> + case maps:take(rep_sync_tref,State) of + {TRef,State1} -> + _ = timer:cancel(TRef), + State1; + error -> + State + end. +error_notify(Term) -> + ?internal_log(error, Term). diff --git a/lib/kernel/src/logger_h_common.hrl b/lib/kernel/src/logger_h_common.hrl new file mode 100644 index 0000000000..004a61d9d9 --- /dev/null +++ b/lib/kernel/src/logger_h_common.hrl @@ -0,0 +1,127 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 1997-2015. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% + +%% The handler sends asynchronous write requests to the process +%% controlling the i/o device, but every once in this interval +%% will the write request be synchronous, so that the i/o device +%% process doesn't get overloaded. This gives the handler time +%% to keep up with its mailbox in overload situations, even if +%% the i/o is slow. +-define(CONTROLLER_SYNC_INTERVAL, 20). +%% The handler will not perform a file sync operation if the +%% mailbox size is greater than this number. This is to ensure +%% the handler process doesn't get overloaded while waiting for +%% an expensive file sync operation to finish. +-define(FILESYNC_OK_QLEN, 2). +%% Do a file/disk_log sync operation every integer() millisec +%% (if necessary) or set to 'no_repeat' to only do file sync when +%% the handler is idle. Note that file sync is not guaranteed to +%% happen automatically if this operation is disabled. +-define(FILESYNC_REPEAT_INTERVAL, 5000). +%%-define(FILESYNC_REPEAT_INTERVAL, no_repeat). + +%% Default disk log option values +-define(DISK_LOG_TYPE, wrap). +-define(DISK_LOG_MAX_NO_FILES, 10). +-define(DISK_LOG_MAX_NO_BYTES, 1048576). + +%%%----------------------------------------------------------------- +%%% Utility macros + +-define(name_to_reg_name(MODULE,Name), + list_to_atom(lists:concat([MODULE,"_",Name]))). + +%%%----------------------------------------------------------------- +%%% The test hook macros make it possible to observe and manipulate +%%% internal handler functionality. When enabled, these macros will +%%% slow down execution and therefore should not be include in code +%%% to be officially released. + +%%-define(TEST_HOOKS, true). +-ifdef(TEST_HOOKS). + -define(TEST_HOOKS_TAB, logger_h_test_hooks). + + -define(init_test_hooks(), + _ = case ets:whereis(?TEST_HOOKS_TAB) of + undefined -> ets:new(?TEST_HOOKS_TAB, [named_table,public]); + _ -> ok + end, + ets:insert(?TEST_HOOKS_TAB, {internal_log,{logger,internal_log}}), + ets:insert(?TEST_HOOKS_TAB, {file_write,ok}), + ets:insert(?TEST_HOOKS_TAB, {file_datasync,ok}), + ets:insert(?TEST_HOOKS_TAB, {disk_log_write,ok}), + ets:insert(?TEST_HOOKS_TAB, {disk_log_sync,ok})). + + -define(set_internal_log(MOD_FUNC), + ets:insert(?TEST_HOOKS_TAB, {internal_log,MOD_FUNC})). + + -define(set_result(OPERATION, RESULT), + ets:insert(?TEST_HOOKS_TAB, {OPERATION,RESULT})). + + -define(set_defaults(), + ets:insert(?TEST_HOOKS_TAB, {internal_log,{logger,internal_log}}), + ets:insert(?TEST_HOOKS_TAB, {file_write,ok}), + ets:insert(?TEST_HOOKS_TAB, {file_datasync,ok}), + ets:insert(?TEST_HOOKS_TAB, {disk_log_write,ok}), + ets:insert(?TEST_HOOKS_TAB, {disk_log_sync,ok})). + + -define(internal_log(TYPE, TERM), + try ets:lookup(?TEST_HOOKS_TAB, internal_log) of + [{_,{LMOD,LFUNC}}] -> apply(LMOD, LFUNC, [TYPE,TERM]); + _ -> logger:internal_log(TYPE, TERM) + catch _:_ -> logger:internal_log(TYPE, TERM) end). + + -define(file_write(DEVICE, DATA), + try ets:lookup(?TEST_HOOKS_TAB, file_write) of + [{_,ok}] -> file:write(DEVICE, DATA); + [{_,ERROR}] -> ERROR + catch _:_ -> file:write(DEVICE, DATA) end). + + -define(file_datasync(DEVICE), + try ets:lookup(?TEST_HOOKS_TAB, file_datasync) of + [{_,ok}] -> file:datasync(DEVICE); + [{_,ERROR}] -> ERROR + catch _:_ -> file:datasync(DEVICE) end). + + -define(disk_log_write(LOG, MODE, DATA), + try ets:lookup(?TEST_HOOKS_TAB, disk_log_write) of + [{_,ok}] -> disk_log_write(LOG, MODE, DATA); + [{_,ERROR}] -> ERROR + catch _:_ -> disk_log_write(LOG, MODE, DATA) end). + + -define(disk_log_sync(LOG), + try ets:lookup(?TEST_HOOKS_TAB, disk_log_sync) of + [{_,ok}] -> disk_log:sync(LOG); + [{_,ERROR}] -> ERROR + catch _:_ -> disk_log:sync(LOG) end). + + +-else. % DEFAULTS! + -define(TEST_HOOKS_TAB, undefined). + -define(init_test_hooks(), ok). + -define(set_internal_log(_MOD_FUNC), ok). + -define(set_result(_OPERATION, _RESULT), ok). + -define(set_defaults(), ok). + -define(internal_log(TYPE, TERM), logger:internal_log(TYPE, TERM)). + -define(file_write(DEVICE, DATA), file:write(DEVICE, DATA)). + -define(file_datasync(DEVICE), file:datasync(DEVICE)). + -define(disk_log_write(LOG, MODE, DATA), disk_log_write(LOG, MODE, DATA)). + -define(disk_log_sync(LOG), disk_log:sync(LOG)). +-endif. diff --git a/lib/kernel/src/logger_handler_watcher.erl b/lib/kernel/src/logger_handler_watcher.erl new file mode 100644 index 0000000000..b75c74c643 --- /dev/null +++ b/lib/kernel/src/logger_handler_watcher.erl @@ -0,0 +1,113 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(logger_handler_watcher). + +-behaviour(gen_server). + +%% API +-export([start_link/0]). +-export([register_handler/2]). + +%% gen_server callbacks +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2]). + +-define(SERVER, ?MODULE). + +-record(state, {handlers}). + +%%%=================================================================== +%%% API +%%%=================================================================== + +-spec start_link() -> {ok, Pid :: pid()} | + {error, Error :: {already_started, pid()}} | + {error, Error :: term()} | + ignore. +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + +-spec register_handler(Id::logger:handler_id(),Pid::pid()) -> ok. +register_handler(Id,Pid) -> + gen_server:call(?SERVER,{register,Id,Pid}). + +%%%=================================================================== +%%% gen_server callbacks +%%%=================================================================== + +-spec init(Args :: term()) -> {ok, State :: term()} | + {ok, State :: term(), Timeout :: timeout()} | + {ok, State :: term(), hibernate} | + {stop, Reason :: term()} | + ignore. +init([]) -> + process_flag(trap_exit, true), + {ok, #state{handlers=[]}}. + +-spec handle_call(Request :: term(), From :: {pid(), term()}, State :: term()) -> + {reply, Reply :: term(), NewState :: term()} | + {reply, Reply :: term(), NewState :: term(), Timeout :: timeout()} | + {reply, Reply :: term(), NewState :: term(), hibernate} | + {noreply, NewState :: term()} | + {noreply, NewState :: term(), Timeout :: timeout()} | + {noreply, NewState :: term(), hibernate} | + {stop, Reason :: term(), Reply :: term(), NewState :: term()} | + {stop, Reason :: term(), NewState :: term()}. +handle_call({register,Id,Pid}, _From, #state{handlers=Hs}=State) -> + Ref = erlang:monitor(process,Pid), + Hs1 = lists:keystore(Id,1,Hs,{Id,Ref}), + {reply, ok, State#state{handlers=Hs1}}. + +-spec handle_cast(Request :: term(), State :: term()) -> + {noreply, NewState :: term()} | + {noreply, NewState :: term(), Timeout :: timeout()} | + {noreply, NewState :: term(), hibernate} | + {stop, Reason :: term(), NewState :: term()}. +handle_cast(_Request, State) -> + {noreply, State}. + +-spec handle_info(Info :: timeout() | term(), State :: term()) -> + {noreply, NewState :: term()} | + {noreply, NewState :: term(), Timeout :: timeout()} | + {noreply, NewState :: term(), hibernate} | + {stop, Reason :: normal | term(), NewState :: term()}. +handle_info({'DOWN',Ref,process,_,shutdown}, #state{handlers=Hs}=State) -> + case lists:keytake(Ref,2,Hs) of + {value,{Id,Ref},Hs1} -> + %% Probably terminated by supervisor. Remove the handler to avoid + %% error printouts due to failing handler. + _ = case logger:get_handler_config(Id) of + {ok,_} -> + logger:remove_handler(Id); + _ -> + ok + end, + {noreply,State#state{handlers=Hs1}}; + false -> + {noreply, State} + end; +handle_info({'DOWN',Ref,process,_,_OtherReason}, #state{handlers=Hs}=State) -> + {noreply,State#state{handlers=lists:keydelete(Ref,2,Hs)}}; +handle_info(_Other,State) -> + {noreply,State}. + +-spec terminate(Reason :: normal | shutdown | {shutdown, term()} | term(), + State :: term()) -> any(). +terminate(_Reason, _State) -> + ok. diff --git a/lib/kernel/src/logger_internal.hrl b/lib/kernel/src/logger_internal.hrl new file mode 100644 index 0000000000..e53922e5d3 --- /dev/null +++ b/lib/kernel/src/logger_internal.hrl @@ -0,0 +1,104 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-include_lib("kernel/include/logger.hrl"). +-define(LOGGER_TABLE,logger). +-define(PROXY_KEY,'$proxy_config$'). +-define(PRIMARY_KEY,'$primary_config$'). +-define(HANDLER_KEY,'$handler_config$'). +-define(LOGGER_META_KEY,'$logger_metadata$'). +-define(STANDARD_HANDLER, default). +-define(DEFAULT_HANDLER_FILTERS,?DEFAULT_HANDLER_FILTERS([otp])). +-define(DEFAULT_HANDLER_FILTERS(Domain), + [{remote_gl,{fun logger_filters:remote_gl/2,stop}}, + {domain,{fun logger_filters:domain/2,{log,super,Domain}}}, + {no_domain,{fun logger_filters:domain/2,{log,undefined,[]}}}]). +-define(DEFAULT_FORMATTER,logger_formatter). +-define(DEFAULT_FORMAT_CONFIG,#{legacy_header=>true, + single_line=>false}). +-define(DEFAULT_FORMAT_TEMPLATE_HEADER, + [[logger_formatter,header],"\n",msg,"\n"]). +-define(DEFAULT_FORMAT_TEMPLATE_SINGLE, + [time," ",level,": ",msg,"\n"]). +-define(DEFAULT_FORMAT_TEMPLATE, + [time," ",level,":\n",msg,"\n"]). + +-define(DEFAULT_LOGGER_CALL_TIMEOUT, infinity). + +-define(LOG_INTERNAL(Level,Report),?DO_LOG_INTERNAL(Level,[Report])). +-define(LOG_INTERNAL(Level,Format,Args),?DO_LOG_INTERNAL(Level,[Format,Args])). +-define(DO_LOG_INTERNAL(Level,Data), + case logger:allow(Level,?MODULE) of + true -> + %% Spawn this to avoid deadlocks + _ = spawn(logger,macro_log,[?LOCATION,Level|Data]++ + [logger:add_default_metadata(#{})]), + ok; + false -> + ok + end). + +%%%----------------------------------------------------------------- +%%% Levels +%%% Using same as syslog +-define(LEVELS,[none, + emergency, + alert, + critical, + error, + warning, + notice, + info, + debug, + all]). +-define(LOG_NONE,-1). +-define(EMERGENCY,0). +-define(ALERT,1). +-define(CRITICAL,2). +-define(ERROR,3). +-define(WARNING,4). +-define(NOTICE,5). +-define(INFO,6). +-define(DEBUG,7). +-define(LOG_ALL,10). + +-define(IS_LEVEL(L), + (L=:=emergency orelse + L=:=alert orelse + L=:=critical orelse + L=:=error orelse + L=:=warning orelse + L=:=notice orelse + L=:=info orelse + L=:=debug)). + +-define(IS_MSG(Msg), + ((is_tuple(Msg) andalso tuple_size(Msg)==2) + andalso + (is_list(element(1,Msg)) andalso is_list(element(2,Msg))) + orelse + (element(1,Msg)==report andalso ?IS_REPORT(element(2,Msg))) + orelse + (element(1,Msg)==string andalso ?IS_STRING(element(2,Msg))))). + +-define(IS_REPORT(Report), + (is_map(Report) orelse (is_list(Report) andalso is_tuple(hd(Report))))). + +-define(IS_STRING(String), + (is_list(String) orelse is_binary(String))). diff --git a/lib/kernel/src/logger_olp.erl b/lib/kernel/src/logger_olp.erl new file mode 100644 index 0000000000..8365383fe2 --- /dev/null +++ b/lib/kernel/src/logger_olp.erl @@ -0,0 +1,627 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(logger_olp). +-behaviour(gen_server). + +-include("logger_olp.hrl"). +-include("logger_internal.hrl"). + +%% API +-export([start_link/4, load/2, info/1, reset/1, stop/1, restart/1, + set_opts/2, get_opts/1, get_default_opts/0, get_pid/1, + call/2, cast/2, get_ref/0, get_ref/1]). + +%% gen_server and proc_lib callbacks +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2, code_change/3]). + +-define(OPT_KEYS,[sync_mode_qlen, + drop_mode_qlen, + flush_qlen, + burst_limit_enable, + burst_limit_max_count, + burst_limit_window_time, + overload_kill_enable, + overload_kill_qlen, + overload_kill_mem_size, + overload_kill_restart_after]). + +-export_type([olp_ref/0, options/0]). + +-opaque olp_ref() :: {atom(),pid(),ets:tid()}. + +-type options() :: logger:olp_config(). + +%%%----------------------------------------------------------------- +%%% API + +-spec start_link(Name,Module,Args,Options) -> {ok,Pid,Olp} | {error,Reason} when + Name :: atom(), + Module :: module(), + Args :: term(), + Options :: options(), + Pid :: pid(), + Olp :: olp_ref(), + Reason :: term(). +start_link(Name,Module,Args,Options0) when is_map(Options0) -> + Options = maps:merge(get_default_opts(),Options0), + case check_opts(Options) of + ok -> + proc_lib:start_link(?MODULE,init,[[Name,Module,Args,Options]]); + Error -> + Error + end. + +-spec load(Olp, Msg) -> ok when + Olp :: olp_ref(), + Msg :: term(). +load({_Name,Pid,ModeRef},Msg) -> + %% If the process is getting overloaded, the message will be + %% synchronous instead of asynchronous (slows down the tempo of a + %% process causing much load). If the process is choked, drop mode + %% is set and no message is sent. + try ?get_mode(ModeRef) of + async -> + gen_server:cast(Pid, {'$olp_load',Msg}); + sync -> + case call(Pid, {'$olp_load',Msg}) of + ok -> + ok; + _Other -> + %% dropped or {error,busy} + ?observe(_Name,{dropped,1}), + ok + end; + drop -> + ?observe(_Name,{dropped,1}) + catch + %% if the ETS table doesn't exist (maybe because of a + %% process restart), we can only drop the event + _:_ -> ?observe(_Name,{dropped,1}) + end, + ok. + +-spec info(Olp) -> map() | {error, busy} when + Olp :: atom() | pid() | olp_ref(). +info(Olp) -> + call(Olp, info). + +-spec reset(Olp) -> ok | {error, busy} when + Olp :: atom() | pid() | olp_ref(). +reset(Olp) -> + call(Olp, reset). + +-spec stop(Olp) -> ok when + Olp :: atom() | pid() | olp_ref(). +stop({_Name,Pid,_ModRef}) -> + stop(Pid); +stop(Pid) -> + _ = gen_server:call(Pid, stop), + ok. + +-spec set_opts(Olp, Opts) -> ok | {error,term()} | {error, busy} when + Olp :: atom() | pid() | olp_ref(), + Opts :: options(). +set_opts(Olp, Opts) -> + call(Olp, {set_opts,Opts}). + +-spec get_opts(Olp) -> options() | {error, busy} when + Olp :: atom() | pid() | olp_ref(). +get_opts(Olp) -> + call(Olp, get_opts). + +-spec get_default_opts() -> options(). +get_default_opts() -> + #{sync_mode_qlen => ?SYNC_MODE_QLEN, + drop_mode_qlen => ?DROP_MODE_QLEN, + flush_qlen => ?FLUSH_QLEN, + burst_limit_enable => ?BURST_LIMIT_ENABLE, + burst_limit_max_count => ?BURST_LIMIT_MAX_COUNT, + burst_limit_window_time => ?BURST_LIMIT_WINDOW_TIME, + overload_kill_enable => ?OVERLOAD_KILL_ENABLE, + overload_kill_qlen => ?OVERLOAD_KILL_QLEN, + overload_kill_mem_size => ?OVERLOAD_KILL_MEM_SIZE, + overload_kill_restart_after => ?OVERLOAD_KILL_RESTART_AFTER}. + +-spec restart(fun(() -> any())) -> ok. +restart(Fun) -> + Result = + try Fun() + catch C:R:S -> + {error,{restart_failed,Fun,C,R,S}} + end, + ?LOG_INTERNAL(debug,[{logger_olp,restart}, + {result,Result}]), + ok. + +-spec get_ref() -> olp_ref(). +get_ref() -> + get(olp_ref). + +-spec get_ref(PidOrName) -> olp_ref() | {error, busy} when + PidOrName :: pid() | atom(). +get_ref(PidOrName) -> + call(PidOrName,get_ref). + +-spec get_pid(olp_ref()) -> pid(). +get_pid({_Name,Pid,_ModeRef}) -> + Pid. + +%%%=================================================================== +%%% gen_server callbacks +%%%=================================================================== + +init([Name,Module,Args,Options]) -> + register(Name, self()), + process_flag(message_queue_data, off_heap), + + ?start_observation(Name), + + try ets:new(Name, [public]) of + ModeRef -> + OlpRef = {Name,self(),ModeRef}, + put(olp_ref,OlpRef), + try Module:init(Args) of + {ok,CBState} -> + ?set_mode(ModeRef, async), + T0 = ?timestamp(), + proc_lib:init_ack({ok,self(),OlpRef}), + %% Storing options in state to avoid copying + %% (sending) the option data with each message + State0 = ?merge_with_stats( + Options#{id => Name, + idle=> true, + module => Module, + mode_ref => ModeRef, + mode => async, + last_qlen => 0, + last_load_ts => T0, + burst_win_ts => T0, + burst_msg_count => 0, + cb_state => CBState}), + State = reset_restart_flag(State0), + gen_server:enter_loop(?MODULE, [], State); + Error -> + _ = ets:delete(ModeRef), + unregister(Name), + proc_lib:init_ack(Error) + catch + _:Error -> + _ = ets:delete(ModeRef), + unregister(Name), + proc_lib:init_ack(Error) + end + catch + _:Error -> + unregister(Name), + proc_lib:init_ack(Error) + end. + +%% This is the synchronous load event. +handle_call({'$olp_load', Msg}, _From, State) -> + {Result,State1} = do_load(Msg, call, State#{idle=>false}), + %% Result == ok | dropped + reply_return(Result,State1); + +handle_call(get_ref,_From,#{id:=Name,mode_ref:=ModeRef}=State) -> + reply_return({Name,self(),ModeRef},State); + +handle_call({set_opts,Opts0},_From,State) -> + Opts = maps:merge(maps:with(?OPT_KEYS,State),Opts0), + case check_opts(Opts) of + ok -> + reply_return(ok, maps:merge(State,Opts)); + Error -> + reply_return(Error, State) + end; + +handle_call(get_opts,_From,State) -> + reply_return(maps:with(?OPT_KEYS,State), State); + +handle_call(info, _From, State) -> + reply_return(State, State); + +handle_call(reset, _From, #{module:=Module,cb_state:=CBState}=State) -> + State1 = ?merge_with_stats(State), + CBState1 = try_callback_call(Module,reset_state,[CBState],CBState), + reply_return(ok, State1#{idle => true, + last_qlen => 0, + last_load_ts => ?timestamp(), + cb_state => CBState1}); + +handle_call(stop, _From, State) -> + {stop, {shutdown,stopped}, ok, State}; + +handle_call(Msg, From, #{module:=Module,cb_state:=CBState}=State) -> + case try_callback_call(Module,handle_call,[Msg, From, CBState]) of + {reply,Reply,CBState1} -> + reply_return(Reply,State#{cb_state=>CBState1}); + {noreply,CBState1} -> + noreply_return(State#{cb_state=>CBState1}); + {stop, Reason, Reply, CBState1} -> + {stop, Reason, Reply, State#{cb_state=>CBState1}}; + {stop, Reason, CBState1} -> + {stop, Reason, State#{cb_state=>CBState1}} + end. + +%% This is the asynchronous load event. +handle_cast({'$olp_load', Msg}, State) -> + {_Result,State1} = do_load(Msg, cast, State#{idle=>false}), + noreply_return(State1); + +handle_cast(Msg, #{module:=Module, cb_state:=CBState} = State) -> + case try_callback_call(Module,handle_cast,[Msg, CBState]) of + {noreply,CBState1} -> + noreply_return(State#{cb_state=>CBState1}); + {stop, Reason, CBState1} -> + {stop, Reason, State#{cb_state=>CBState1}} + end. + +handle_info(timeout, #{mode_ref:=_ModeRef, mode:=Mode} = State) -> + State1 = notify(idle,State), + State2 = maybe_notify_mode_change(async,State1), + {noreply, State2#{idle => true, + mode => ?change_mode(_ModeRef, Mode, async), + burst_msg_count => 0}}; +handle_info(Msg, #{module := Module, cb_state := CBState} = State) -> + case try_callback_call(Module,handle_info,[Msg, CBState]) of + {noreply,CBState1} -> + noreply_return(State#{cb_state=>CBState1}); + {stop, Reason, CBState1} -> + {stop, Reason, State#{cb_state=>CBState1}}; + {load,CBState1} -> + {_,State1} = do_load(Msg, cast, State#{idle=>false, + cb_state=>CBState1}), + noreply_return(State1) + end. + +terminate({shutdown,{overloaded,_QLen,_Mem}}, + #{id:=Name, module := Module, cb_state := CBState, + overload_kill_restart_after := RestartAfter} = State) -> + %% We're terminating because of an overload situation (see + %% kill_if_choked/3). + unregister(Name), %%!!!! to avoid error printout of callback crashed on stop + case try_callback_call(Module,terminate,[overloaded,CBState],ok) of + {ok,Fun} when is_function(Fun,0), is_integer(RestartAfter) -> + set_restart_flag(State), + _ = timer:apply_after(RestartAfter,?MODULE,restart,[Fun]), + ok; + _ -> + ok + end; +terminate(Reason, #{id:=Name, module:=Module, cb_state:=CBState}) -> + _ = try_callback_call(Module,terminate,[Reason,CBState],ok), + unregister(Name), + ok. + +code_change(_OldVsn, State, _Extra) -> + {ok, State}. + + +%%%----------------------------------------------------------------- +%%% Internal functions +-spec call(Olp, term()) -> term() | {error,busy} when + Olp :: atom() | pid() | olp_ref(). +call({_Name, Pid, _ModeRef},Msg) -> + call(Pid, Msg); +call(Server, Msg) -> + try + gen_server:call(Server, Msg) + catch + _:{timeout,_} -> {error,busy} + end. + +-spec cast(olp_ref(),term()) -> ok. +cast({_Name, Pid, _ModeRef},Msg) -> + gen_server:cast(Pid, Msg). + +%% check for overload between every event (and set Mode to async, +%% sync or drop accordingly), but never flush the whole mailbox +%% before LogWindowSize events have been handled +do_load(Msg, CallOrCast, State) -> + T1 = ?timestamp(), + State1 = ?update_time(T1,State), + + %% check if the process is getting overloaded, or if it's + %% recovering from overload (the check must be done for each + %% event to react quickly to large bursts of events and + %% to ensure that the handler can never end up in drop mode + %% with an empty mailbox, which would stop operation) + {Mode1,QLen,Mem,State2} = check_load(State1), + + %% kill the handler if it can't keep up with the load + kill_if_choked(QLen, Mem, State2), + + if Mode1 == flush -> + flush(T1, State2); + true -> + handle_load(Mode1, T1, Msg, CallOrCast, State2) + end. + +%% this function is called by do_load/3 after an overload check +%% has been performed, where QLen > FlushQLen +flush(T1, State=#{id := _Name, mode := Mode, last_load_ts := _T0, mode_ref := ModeRef}) -> + %% flush load messages in the mailbox (a limited number in order + %% to not cause long delays) + NewFlushed = flush_load(?FLUSH_MAX_N), + + %% write info in log about flushed messages + State1=notify({flushed,NewFlushed},State), + + %% because of the receive loop when flushing messages, the + %% handler will be scheduled out often and the mailbox could + %% grow very large, so we'd better check the queue again here + {_,QLen1} = process_info(self(), message_queue_len), + ?observe(_Name,{max_qlen,QLen1}), + + %% Add 1 for the current log event + ?observe(_Name,{flushed,NewFlushed+1}), + + State2 = ?update_max_time(?diff_time(T1,_T0),State1), + State3 = ?update_max_qlen(QLen1,State2), + State4 = maybe_notify_mode_change(async,State3), + {dropped,?update_other(flushed,FLUSHED,NewFlushed, + State4#{mode => ?change_mode(ModeRef,Mode,async), + last_qlen => QLen1, + last_load_ts => T1})}. + +%% this function is called to actually handle the message +handle_load(Mode, T1, Msg, _CallOrCast, + State = #{id := _Name, + module := Module, + cb_state := CBState, + last_qlen := LastQLen, + last_load_ts := _T0}) -> + %% check if we need to limit the number of writes + %% during a burst of log events + {DoWrite,State1} = limit_burst(State), + + {Result,LastQLen1,CBState1} = + if DoWrite -> + ?observe(_Name,{_CallOrCast,1}), + CBS = try_callback_call(Module,handle_load,[Msg,CBState]), + {ok,element(2, process_info(self(), message_queue_len)),CBS}; + true -> + ?observe(_Name,{flushed,1}), + {dropped,LastQLen,CBState} + end, + State2 = State1#{cb_state=>CBState1}, + + State3 = State2#{mode => Mode}, + State4 = ?update_calls_or_casts(_CallOrCast,1,State3), + State5 = ?update_max_qlen(LastQLen1,State4), + State6 = + ?update_max_time(?diff_time(T1,_T0), + State5#{last_qlen := LastQLen1, + last_load_ts => T1}), + State7 = case Result of + ok -> + S = ?update_freq(T1,State6), + ?update_other(writes,WRITES,1,S); + _ -> + State6 + end, + {Result,State7}. + + +%%%----------------------------------------------------------------- +%%% Check that the options are valid +check_opts(Options) when is_map(Options) -> + case do_check_opts(maps:to_list(Options)) of + ok -> + case overload_levels_ok(Options) of + true -> + ok; + false -> + Faulty = maps:with([sync_mode_qlen, + drop_mode_qlen, + flush_qlen],Options), + {error,{invalid_olp_levels,Faulty}} + end; + {error,Key,Value} -> + {error,{invalid_olp_config,#{Key=>Value}}} + end. + +do_check_opts([{sync_mode_qlen,N}|Options]) when is_integer(N) -> + do_check_opts(Options); +do_check_opts([{drop_mode_qlen,N}|Options]) when is_integer(N) -> + do_check_opts(Options); +do_check_opts([{flush_qlen,N}|Options]) when is_integer(N) -> + do_check_opts(Options); +do_check_opts([{burst_limit_enable,Bool}|Options]) when is_boolean(Bool) -> + do_check_opts(Options); +do_check_opts([{burst_limit_max_count,N}|Options]) when is_integer(N) -> + do_check_opts(Options); +do_check_opts([{burst_limit_window_time,N}|Options]) when is_integer(N) -> + do_check_opts(Options); +do_check_opts([{overload_kill_enable,Bool}|Options]) when is_boolean(Bool) -> + do_check_opts(Options); +do_check_opts([{overload_kill_qlen,N}|Options]) when is_integer(N) -> + do_check_opts(Options); +do_check_opts([{overload_kill_mem_size,N}|Options]) when is_integer(N) -> + do_check_opts(Options); +do_check_opts([{overload_kill_restart_after,NorA}|Options]) + when is_integer(NorA); NorA == infinity -> + do_check_opts(Options); +do_check_opts([{Key,Value}|_]) -> + {error,Key,Value}; +do_check_opts([]) -> + ok. + +set_restart_flag(#{id := Name, module := Module}) -> + Flag = list_to_atom(lists:concat([Module,"_",Name,"_restarting"])), + spawn(fun() -> + register(Flag, self()), + timer:sleep(infinity) + end), + ok. + +reset_restart_flag(#{id := Name, module := Module} = State) -> + Flag = list_to_atom(lists:concat([Module,"_",Name,"_restarting"])), + case whereis(Flag) of + undefined -> + State; + Pid -> + exit(Pid, kill), + notify(restart,State) + end. + +check_load(State = #{id:=_Name, mode_ref := ModeRef, mode := Mode, + sync_mode_qlen := SyncModeQLen, + drop_mode_qlen := DropModeQLen, + flush_qlen := FlushQLen}) -> + {_,Mem} = process_info(self(), memory), + ?observe(_Name,{max_mem,Mem}), + {_,QLen} = process_info(self(), message_queue_len), + ?observe(_Name,{max_qlen,QLen}), + %% When the handler process gets scheduled in, it's impossible + %% to predict the QLen. We could jump "up" arbitrarily from say + %% async to sync, async to drop, sync to flush, etc. However, when + %% the handler process manages the log events (without flushing), + %% one after the other, we will move "down" from drop to sync and + %% from sync to async. This way we don't risk getting stuck in + %% drop or sync mode with an empty mailbox. + {Mode1,_NewDrops,_NewFlushes} = + if + QLen >= FlushQLen -> + {flush, 0,1}; + QLen >= DropModeQLen -> + %% Note that drop mode will force load messages to + %% be dropped on the client side (never sent to + %% the olp process). + IncDrops = if Mode == drop -> 0; true -> 1 end, + {?change_mode(ModeRef, Mode, drop), IncDrops,0}; + QLen >= SyncModeQLen -> + {?change_mode(ModeRef, Mode, sync), 0,0}; + true -> + {?change_mode(ModeRef, Mode, async), 0,0} + end, + State1 = ?update_other(drops,DROPS,_NewDrops,State), + State2 = ?update_max_qlen(QLen,State1), + State3 = ?update_max_mem(Mem,State2), + State4 = maybe_notify_mode_change(Mode1,State3), + {Mode1, QLen, Mem, + ?update_other(flushes,FLUSHES,_NewFlushes, + State4#{last_qlen => QLen})}. + +limit_burst(#{burst_limit_enable := false}=State) -> + {true,State}; +limit_burst(#{burst_win_ts := BurstWinT0, + burst_msg_count := BurstMsgCount, + burst_limit_window_time := BurstLimitWinTime, + burst_limit_max_count := BurstLimitMaxCnt} = State) -> + if (BurstMsgCount >= BurstLimitMaxCnt) -> + %% the limit for allowed messages has been reached + BurstWinT1 = ?timestamp(), + case ?diff_time(BurstWinT1,BurstWinT0) of + BurstCheckTime when BurstCheckTime < (BurstLimitWinTime*1000) -> + %% we're still within the burst time frame + {false,?update_other(burst_drops,BURSTS,1,State)}; + _BurstCheckTime -> + %% burst time frame passed, reset counters + {true,State#{burst_win_ts => BurstWinT1, + burst_msg_count => 0}} + end; + true -> + %% the limit for allowed messages not yet reached + {true,State#{burst_win_ts => BurstWinT0, + burst_msg_count => BurstMsgCount+1}} + end. + +kill_if_choked(QLen, Mem, #{overload_kill_enable := KillIfOL, + overload_kill_qlen := OLKillQLen, + overload_kill_mem_size := OLKillMem}) -> + if KillIfOL andalso + ((QLen > OLKillQLen) orelse (Mem > OLKillMem)) -> + exit({shutdown,{overloaded,QLen,Mem}}); + true -> + ok + end. + +flush_load(Limit) -> + process_flag(priority, high), + Flushed = flush_load(0, Limit), + process_flag(priority, normal), + Flushed. + +flush_load(Limit, Limit) -> + Limit; +flush_load(N, Limit) -> + %% flush log events but leave other events, such as info, reset + %% and stop, so that these have a chance to be processed even + %% under heavy load + receive + {'$gen_cast',{'$olp_load',_}} -> + flush_load(N+1, Limit); + {'$gen_call',{Pid,MRef},{'$olp_load',_}} -> + Pid ! {MRef, dropped}, + flush_load(N+1, Limit); + {log,_,_,_,_} -> + flush_load(N+1, Limit); + {log,_,_,_} -> + flush_load(N+1, Limit) + after + 0 -> N + end. + +overload_levels_ok(Options) -> + SMQL = maps:get(sync_mode_qlen, Options, ?SYNC_MODE_QLEN), + DMQL = maps:get(drop_mode_qlen, Options, ?DROP_MODE_QLEN), + FQL = maps:get(flush_qlen, Options, ?FLUSH_QLEN), + (DMQL > 1) andalso (SMQL =< DMQL) andalso (DMQL =< FQL). + +maybe_notify_mode_change(drop,#{mode:=Mode0}=State) + when Mode0=/=drop -> + notify({mode_change,Mode0,drop},State); +maybe_notify_mode_change(Mode1,#{mode:=drop}=State) + when Mode1==async; Mode1==sync -> + notify({mode_change,drop,Mode1},State); +maybe_notify_mode_change(_,State) -> + State. + +notify(Note,#{module:=Module,cb_state:=CBState}=State) -> + CBState1 = try_callback_call(Module,notify,[Note,CBState],CBState), + State#{cb_state=>CBState1}. + +try_callback_call(Module, Function, Args) -> + try_callback_call(Module, Function, Args, '$no_default_return'). + +try_callback_call(Module, Function, Args, DefRet) -> + try apply(Module, Function, Args) + catch + throw:R -> R; + error:undef:S when DefRet=/='$no_default_return' -> + case S of + [{Module,Function,Args,_}|_] -> + DefRet; + _ -> + erlang:raise(error,undef,S) + end + end. + +noreply_return(#{idle:=true}=State) -> + {noreply,State}; +noreply_return(#{idle:=false}=State) -> + {noreply,State,?IDLE_DETECT_TIME}. + +reply_return(Reply,#{idle:=true}=State) -> + {reply,Reply,State}; +reply_return(Reply,#{idle:=false}=State) -> + {reply,Reply,State,?IDLE_DETECT_TIME}. diff --git a/lib/kernel/src/logger_olp.hrl b/lib/kernel/src/logger_olp.hrl new file mode 100644 index 0000000000..d68b5c048d --- /dev/null +++ b/lib/kernel/src/logger_olp.hrl @@ -0,0 +1,185 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 1997-2015. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% + +%%%----------------------------------------------------------------- +%%% Overload protection configuration + +%%! *** NOTE *** +%%! It's important that: +%%! SYNC_MODE_QLEN =< DROP_MODE_QLEN =< FLUSH_QLEN +%%! and that DROP_MODE_QLEN >= 2. +%%! Otherwise the process could end up in drop mode with no new +%%! log requests to process. This would cause all future requests +%%! to be dropped (no switch to async mode would ever take place). + +%% This specifies the message_queue_len value where the log +%% requests switch from asynchronous casts to synchronous calls. +-define(SYNC_MODE_QLEN, 10). +%% Above this message_queue_len, log requests will be dropped, +%% i.e. no log requests get sent to the process. +-define(DROP_MODE_QLEN, 200). +%% Above this message_queue_len, the process will flush its mailbox +%% and only leave this number of messages in it. +-define(FLUSH_QLEN, 1000). + +%% Never flush more than this number of messages in one go, or the +%% process will be unresponsive for seconds (keep this number as large +%% as possible or the mailbox could grow large). +-define(FLUSH_MAX_N, 5000). + +%% BURST_LIMIT_MAX_COUNT is the max number of log requests allowed +%% to be written within a BURST_LIMIT_WINDOW_TIME time frame. +-define(BURST_LIMIT_ENABLE, true). +-define(BURST_LIMIT_MAX_COUNT, 500). +-define(BURST_LIMIT_WINDOW_TIME, 1000). + +%% This enables/disables the feature to automatically terminate the +%% process if it gets too loaded (and can't keep up). +-define(OVERLOAD_KILL_ENABLE, false). +%% If the message_queue_len goes above this size even after +%% flushing has been performed, the process is terminated. +-define(OVERLOAD_KILL_QLEN, 20000). +%% If the memory usage exceeds this level, the process is terminated. +-define(OVERLOAD_KILL_MEM_SIZE, 3000000). + +%% This is the default time to wait before restarting and accepting +%% new requests. The value 'infinity' disables restarts. +-define(OVERLOAD_KILL_RESTART_AFTER, 5000). + +%% This is the time in milliseconds after last load message received +%% that we notify the callback about being idle. +-define(IDLE_DETECT_TIME, 100). + +%%%----------------------------------------------------------------- +%%% Overload protection macros + +-define(timestamp(), erlang:monotonic_time(microsecond)). + +-define(get_mode(Tid), + case ets:lookup(Tid, mode) of + [{mode,M}] -> M; + _ -> async + end). + +-define(set_mode(Tid, M), + begin ets:insert(Tid, {mode,M}), M end). + +-define(change_mode(Tid, M0, M1), + if M0 == M1 -> + M0; + true -> + ets:insert(Tid, {mode,M1}), + M1 + end). + +-define(max(X1, X2), + if + X2 == undefined -> X1; + X2 > X1 -> X2; + true -> X1 + end). + +-define(diff_time(OS_T1, OS_T0), OS_T1-OS_T0). + +%%%----------------------------------------------------------------- +%%% These macros enable statistics counters in the state of the +%%% process, which is useful for analysing the overload protection +%%% behaviour. These counters should not be included in code to be +%%% officially released (as some counters will grow very large over +%%% time). + +%% -define(SAVE_STATS, true). +-ifdef(SAVE_STATS). + -define(merge_with_stats(STATE), + begin + TIME = ?timestamp(), + STATE#{start => TIME, time => {TIME,0}, + flushes => 0, flushed => 0, drops => 0, + burst_drops => 0, casts => 0, calls => 0, + writes => 0, max_qlen => 0, max_time => 0, + max_mem => 0, freq => {TIME,0,0}} end). + + -define(update_max_qlen(QLEN, STATE), + begin #{max_qlen := QLEN0} = STATE, + STATE#{max_qlen => ?max(QLEN0,QLEN)} end). + + -define(update_max_mem(MEM, STATE), + begin #{max_mem := MEM0} = STATE, + STATE#{max_mem => ?max(MEM0,MEM)} end). + + -define(update_calls_or_casts(CALL_OR_CAST, INC, STATE), + case CALL_OR_CAST of + cast -> + #{casts := CASTS0} = STATE, + STATE#{casts => CASTS0+INC}; + call -> + #{calls := CALLS0} = STATE, + STATE#{calls => CALLS0+INC} + end). + + -define(update_max_time(TIME, STATE), + begin #{max_time := TIME0} = STATE, + STATE#{max_time => ?max(TIME0,TIME)} end). + + -define(update_other(OTHER, VAR, INCVAL, STATE), + begin #{OTHER := VAR} = STATE, + STATE#{OTHER => VAR+INCVAL} end). + + -define(update_freq(TIME,STATE), + begin + case STATE of + #{freq := {START, 49, _}} -> + STATE#{freq => {TIME, 0, trunc(1000000*50/(?diff_time(TIME,START)))}}; + #{freq := {START, N, FREQ}} -> + STATE#{freq => {START, N+1, FREQ}} + end end). + + -define(update_time(TIME,STATE), + begin #{start := START} = STATE, + STATE#{time => {TIME,trunc((?diff_time(TIME,START))/1000000)}} end). + +-else. % DEFAULT! + -define(merge_with_stats(STATE), STATE). + -define(update_max_qlen(_QLEN, STATE), STATE). + -define(update_max_mem(_MEM, STATE), STATE). + -define(update_calls_or_casts(_CALL_OR_CAST, _INC, STATE), STATE). + -define(update_max_time(_TIME, STATE), STATE). + -define(update_other(_OTHER, _VAR, _INCVAL, STATE), STATE). + -define(update_freq(_TIME, STATE), STATE). + -define(update_time(_TIME, STATE), STATE). +-endif. + +%%%----------------------------------------------------------------- +%%% These macros enable callbacks that make it possible to analyse the +%%% overload protection behaviour from outside the process (including +%%% dropped requests on the client side). An external callback module +%%% (?OBSERVER_MOD) is required which is not part of the kernel +%%% application. For this reason, these callbacks should not be +%%% included in code to be officially released. + +%%-define(OBSERVER_MOD, logger_test). +-ifdef(OBSERVER_MOD). + -define(start_observation(NAME), ?OBSERVER:start_observation(NAME)). + -define(observe(NAME,EVENT), ?OBSERVER:observe(NAME,EVENT)). + +-else. % DEFAULT! + -define(start_observation(_NAME), ok). + -define(observe(_NAME,_EVENT), ok). +-endif. diff --git a/lib/kernel/src/logger_proxy.erl b/lib/kernel/src/logger_proxy.erl new file mode 100644 index 0000000000..24b293805c --- /dev/null +++ b/lib/kernel/src/logger_proxy.erl @@ -0,0 +1,165 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(logger_proxy). + +%% API +-export([start_link/0, restart/0, log/1, child_spec/0, get_default_config/0]). + +%% logger_olp callbacks +-export([init/1, handle_load/2, handle_info/2, terminate/2, + notify/2]). + +-include("logger_internal.hrl"). + +-define(SERVER,?MODULE). + +%%%----------------------------------------------------------------- +%%% API +-spec log(RemoteLog) -> ok when + RemoteLog :: {remote,node(),LogEvent}, + LogEvent :: {log,Level,Format,Args,Meta} | + {log,Level,StringOrReport,Meta}, + Level :: logger:level(), + Format :: io:format(), + Args :: list(term()), + StringOrReport :: unicode:chardata() | logger:report(), + Meta :: logger:metadata(). +log(RemoteLog) -> + Olp = persistent_term:get(?MODULE), + case logger_olp:get_pid(Olp) =:= self() of + true -> + %% This happens when the log event comes from the + %% emulator, and the group leader is on a remote node. + _ = handle_load(RemoteLog, no_state), + ok; + false -> + logger_olp:load(Olp, RemoteLog) + end. + +%% Called by supervisor +-spec start_link() -> {ok,pid(),logger_olp:olp_ref()} | {error,term()}. +start_link() -> + %% Notice that sync_mode is only used when logging to remote node, + %% i.e. when the log/2 API function is called. + %% + %% When receiving log events from the emulator or from a remote + %% node, the log event is sent as a message to this process, and + %% thus received directly in handle_info/2. This means that the + %% mode (async/sync/drop) is not read before the message is + %% sent. Thus sync mode is never entered, and drop mode is + %% implemented by setting the system_logger flag to undefined (see + %% notify/2) + %% + %% Burst limit is disabled, since this is only a proxy and we + %% don't want to limit bursts twice (here and in the handler). + logger_olp:start_link(?SERVER,?MODULE,[],logger:get_proxy_config()). + +%% Fun used for restarting this process after it has been killed due +%% to overload (must set overload_kill_enable=>true in opts) +restart() -> + case supervisor:start_child(logger_sup, child_spec()) of + {ok,_Pid,Olp} -> + {ok,Olp}; + {error,{Reason,Ch}} when is_tuple(Ch), element(1,Ch)==child -> + {error,Reason}; + Error -> + Error + end. + +%% Called internally and by logger_sup +child_spec() -> + Name = ?SERVER, + #{id => Name, + start => {?MODULE, start_link, []}, + restart => temporary, + shutdown => 2000, + type => worker, + modules => [?MODULE]}. + +get_default_config() -> + OlpDefault = logger_olp:get_default_opts(), + OlpDefault#{sync_mode_qlen=>500, + drop_mode_qlen=>1000, + flush_qlen=>5000, + burst_limit_enable=>false}. + +%%%=================================================================== +%%% gen_server callbacks +%%%=================================================================== + +init([]) -> + process_flag(trap_exit, true), + _ = erlang:system_flag(system_logger,self()), + persistent_term:put(?MODULE,logger_olp:get_ref()), + {ok,no_state}. + +%% Log event to send to the node where the group leader of it's client resides +handle_load({remote,Node,Log},State) -> + %% If the connection is overloaded (send_nosuspend returns false), + %% we drop the message. + _ = erlang:send_nosuspend({?SERVER,Node},Log), + State; +%% Log event to log on this node +handle_load({log,Level,Format,Args,Meta},State) -> + try_log([Level,Format,Args,Meta]), + State; +handle_load({log,Level,Report,Meta},State) -> + try_log([Level,Report,Meta]), + State. + +%% Log event sent to this process e.g. from the emulator - it is really load +handle_info(Log,State) when is_tuple(Log), element(1,Log)==log -> + {load,State}. + +terminate(overloaded, _State) -> + _ = erlang:system_flag(system_logger,undefined), + {ok,fun ?MODULE:restart/0}; +terminate(_Reason, _State) -> + _ = erlang:system_flag(system_logger,whereis(logger)), + ok. + +notify({mode_change,Mode0,Mode1},State) -> + _ = if Mode1=:=drop -> % entering drop mode + erlang:system_flag(system_logger,undefined); + Mode0=:=drop -> % leaving drop mode + erlang:system_flag(system_logger,self()); + true -> + ok + end, + ?LOG_INTERNAL(notice,"~w switched from ~w to ~w mode",[?MODULE,Mode0,Mode1]), + State; +notify({flushed,Flushed},State) -> + ?LOG_INTERNAL(notice, "~w flushed ~w log events",[?MODULE,Flushed]), + State; +notify(restart,State) -> + ?LOG_INTERNAL(notice, "~w restarted", [?MODULE]), + State; +notify(_Note,State) -> + State. + +%%%----------------------------------------------------------------- +%%% Internal functions +try_log(Args) -> + try apply(logger,log,Args) + catch C:R:S -> + ?LOG_INTERNAL(debug,[{?MODULE,log_failed}, + {log,Args}, + {reason,{C,R,S}}]) + end. diff --git a/lib/kernel/src/logger_server.erl b/lib/kernel/src/logger_server.erl new file mode 100644 index 0000000000..722246e82c --- /dev/null +++ b/lib/kernel/src/logger_server.erl @@ -0,0 +1,617 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(logger_server). + +-behaviour(gen_server). + +%% API +-export([start_link/0, add_handler/3, remove_handler/1, + add_filter/2, remove_filter/2, + set_module_level/2, unset_module_level/0, + unset_module_level/1, cache_module_level/1, + set_config/2, set_config/3, + update_config/2, update_config/3, + update_formatter_config/2]). + +%% Helper +-export([diff_maps/2]). + +%% gen_server callbacks +-export([init/1, handle_call/3, handle_cast/2, handle_info/2, + terminate/2]). + +-include("logger_internal.hrl"). + +-define(SERVER, logger). +-define(LOGGER_SERVER_TAG, '$logger_cb_process'). + +-record(state, {tid, async_req, async_req_queue, remote_logger}). + +%%%=================================================================== +%%% API +%%%=================================================================== + +start_link() -> + gen_server:start_link({local, ?SERVER}, ?MODULE, [], []). + +add_handler(Id,Module,Config0) -> + try {check_id(Id),check_mod(Module)} of + {ok,ok} -> + case sanity_check(Id,Config0) of + ok -> + Default = default_config(Id,Module), + Config = maps:merge(Default,Config0), + call({add_handler,Id,Module,Config}); + Error -> + Error + end + catch throw:Error -> + {error,Error} + end. + +remove_handler(HandlerId) -> + call({remove_handler,HandlerId}). + +add_filter(Owner,Filter) -> + case sanity_check(Owner,filters,[Filter]) of + ok -> call({add_filter,Owner,Filter}); + Error -> Error + end. + +remove_filter(Owner,FilterId) -> + call({remove_filter,Owner,FilterId}). + +set_module_level(Modules,Level) when is_list(Modules) -> + case lists:all(fun(M) -> is_atom(M) end,Modules) of + true -> + case sanity_check(primary,level,Level) of + ok -> call({set_module_level,Modules,Level}); + Error -> Error + end; + false -> + {error,{not_a_list_of_modules,Modules}} + end; +set_module_level(Modules,_) -> + {error,{not_a_list_of_modules,Modules}}. + +unset_module_level() -> + call({unset_module_level,all}). + +unset_module_level(Modules) when is_list(Modules) -> + case lists:all(fun(M) -> is_atom(M) end,Modules) of + true -> + call({unset_module_level,Modules}); + false -> + {error,{not_a_list_of_modules,Modules}} + end; +unset_module_level(Modules) -> + {error,{not_a_list_of_modules,Modules}}. + +cache_module_level(Module) -> + gen_server:cast(?SERVER,{cache_module_level,Module}). + +set_config(Owner,Key,Value) -> + case sanity_check(Owner,Key,Value) of + ok -> + call({change_config,set,Owner,Key,Value}); + Error -> + Error + end. + +set_config(Owner,Config) -> + case sanity_check(Owner,Config) of + ok -> + call({change_config,set,Owner,Config}); + Error -> + Error + end. + +update_config(Owner,Key,Value) -> + case sanity_check(Owner,Key,Value) of + ok -> + call({change_config,update,Owner,Key,Value}); + Error -> + Error + end. + +update_config(Owner, Config) -> + case sanity_check(Owner,Config) of + ok -> + call({change_config,update,Owner,Config}); + Error -> + Error + end. + +update_formatter_config(HandlerId, FormatterConfig) + when is_map(FormatterConfig) -> + call({update_formatter_config,HandlerId,FormatterConfig}); +update_formatter_config(_HandlerId, FormatterConfig) -> + {error,{invalid_formatter_config,FormatterConfig}}. + + +%%%=================================================================== +%%% gen_server callbacks +%%%=================================================================== + +init([]) -> + process_flag(trap_exit, true), + put(?LOGGER_SERVER_TAG,true), + Tid = logger_config:new(?LOGGER_TABLE), + %% Store initial proxy config. logger_proxy reads config from here at startup. + logger_config:create(Tid,proxy,logger_proxy:get_default_config()), + PrimaryConfig = maps:merge(default_config(primary), + #{handlers=>[simple]}), + logger_config:create(Tid,primary,PrimaryConfig), + SimpleConfig0 = maps:merge(default_config(simple,logger_simple_h), + #{filter_default=>stop, + filters=>?DEFAULT_HANDLER_FILTERS}), + %% If this fails, then the node should crash + {ok,SimpleConfig} = logger_simple_h:adding_handler(SimpleConfig0), + logger_config:create(Tid,simple,SimpleConfig), + {ok, #state{tid=Tid, async_req_queue = queue:new()}}. + +handle_call({add_handler,Id,Module,HConfig}, From, #state{tid=Tid}=State) -> + case logger_config:exist(Tid,Id) of + true -> + {reply,{error,{already_exist,Id}},State}; + false -> + call_h_async( + fun() -> + %% inform the handler + call_h(Module,adding_handler,[HConfig],{ok,HConfig}) + end, + fun({ok,HConfig1}) -> + %% We know that the call_h would have loaded the module + %% if it existed, so it is safe here to call function_exported + %% to find out if this is a valid handler + case erlang:function_exported(Module, log, 2) of + true -> + logger_config:create(Tid,Id,HConfig1), + {ok,Config} = logger_config:get(Tid,primary), + Handlers = maps:get(handlers,Config,[]), + logger_config:set(Tid,primary, + Config#{handlers=>[Id|Handlers]}); + false -> + {error,{invalid_handler, + {function_not_exported, + {Module,log,2}}}} + end; + ({error,HReason}) -> + {error,{handler_not_added,HReason}} + end,From,State) + end; +handle_call({remove_handler,HandlerId}, From, #state{tid=Tid}=State) -> + case logger_config:get(Tid,HandlerId) of + {ok,#{module:=Module}=HConfig} -> + {ok,Config} = logger_config:get(Tid,primary), + Handlers0 = maps:get(handlers,Config,[]), + Handlers = lists:delete(HandlerId,Handlers0), + call_h_async( + fun() -> + %% inform the handler + call_h(Module,removing_handler,[HConfig],ok) + end, + fun(_Res) -> + logger_config:set(Tid,primary,Config#{handlers=>Handlers}), + logger_config:delete(Tid,HandlerId), + ok + end,From,State); + _ -> + {reply,{error,{not_found,HandlerId}},State} + end; +handle_call({add_filter,Id,Filter}, _From,#state{tid=Tid}=State) -> + Reply = do_add_filter(Tid,Id,Filter), + {reply,Reply,State}; +handle_call({remove_filter,Id,FilterId}, _From, #state{tid=Tid}=State) -> + Reply = do_remove_filter(Tid,Id,FilterId), + {reply,Reply,State}; +handle_call({change_config,SetOrUpd,proxy,Config0},_From,#state{tid=Tid}=State) -> + Default = + case SetOrUpd of + set -> + logger_proxy:get_default_config(); + update -> + {ok,OldConfig} = logger_config:get(Tid,proxy), + OldConfig + end, + Config = maps:merge(Default,Config0), + Reply = + case logger_olp:set_opts(logger_proxy,Config) of + ok -> + logger_config:set(Tid,proxy,Config); + Error -> + Error + end, + {reply,Reply,State}; +handle_call({change_config,SetOrUpd,primary,Config0}, _From, + #state{tid=Tid}=State) -> + {ok,#{handlers:=Handlers}=OldConfig} = logger_config:get(Tid,primary), + Default = + case SetOrUpd of + set -> default_config(primary); + update -> OldConfig + end, + Config = maps:merge(Default,Config0), + Reply = logger_config:set(Tid,primary,Config#{handlers=>Handlers}), + {reply,Reply,State}; +handle_call({change_config,_SetOrUpd,primary,Key,Value}, _From, + #state{tid=Tid}=State) -> + {ok,OldConfig} = logger_config:get(Tid,primary), + Reply = logger_config:set(Tid,primary,OldConfig#{Key=>Value}), + {reply,Reply,State}; +handle_call({change_config,SetOrUpd,HandlerId,Config0}, From, + #state{tid=Tid}=State) -> + case logger_config:get(Tid,HandlerId) of + {ok,#{module:=Module}=OldConfig} -> + Default = + case SetOrUpd of + set -> default_config(HandlerId,Module); + update -> OldConfig + end, + Config = maps:merge(Default,Config0), + case check_config_change(OldConfig,Config) of + ok -> + call_h_async( + fun() -> + call_h(Module,changing_config, + [SetOrUpd,OldConfig,Config], + {ok,Config}) + end, + fun({ok,Config1}) -> + logger_config:set(Tid,HandlerId,Config1); + (Error) -> + Error + end,From,State); + Error -> + {reply,Error,State} + end; + _ -> + {reply,{error,{not_found,HandlerId}},State} + end; +handle_call({change_config,SetOrUpd,HandlerId,Key,Value}, From, + #state{tid=Tid}=State) -> + case logger_config:get(Tid,HandlerId) of + {ok,#{module:=Module}=OldConfig} -> + Config = OldConfig#{Key=>Value}, + case check_config_change(OldConfig,Config) of + ok -> + call_h_async( + fun() -> + call_h(Module,changing_config, + [SetOrUpd,OldConfig,Config], + {ok,Config}) + end, + fun({ok,Config1}) -> + logger_config:set(Tid,HandlerId,Config1); + (Error) -> + Error + end,From,State); + Error -> + {reply,Error,State} + end; + _ -> + {reply,{error,{not_found,HandlerId}},State} + end; +handle_call({update_formatter_config,HandlerId,NewFConfig},_From, + #state{tid=Tid}=State) -> + Reply = + case logger_config:get(Tid,HandlerId) of + {ok,#{formatter:={FMod,OldFConfig}}=Config} -> + try + FConfig = maps:merge(OldFConfig,NewFConfig), + check_formatter({FMod,FConfig}), + logger_config:set(Tid,HandlerId, + Config#{formatter=>{FMod,FConfig}}) + catch throw:Reason -> {error,Reason} + end; + _ -> + {error,{not_found,HandlerId}} + end, + {reply,Reply,State}; +handle_call({set_module_level,Modules,Level}, _From, #state{tid=Tid}=State) -> + Reply = logger_config:set_module_level(Tid,Modules,Level), + {reply,Reply,State}; +handle_call({unset_module_level,Modules}, _From, #state{tid=Tid}=State) -> + Reply = logger_config:unset_module_level(Tid,Modules), + {reply,Reply,State}. + +handle_cast({async_req_reply,_Ref,_Reply} = Reply,State) -> + call_h_reply(Reply,State); +handle_cast({cache_module_level,Module}, #state{tid=Tid}=State) -> + logger_config:cache_module_level(Tid,Module), + {noreply, State}. + +%% Interface for those who can't call the API - e.g. the emulator, or +%% places related to code loading. +%% +%% This can also be log events from remote nodes which are sent from +%% logger.erl when the group leader of the client process is on a +%% same node as the client process itself. +handle_info({log,Level,Format,Args,Meta}, State) -> + logger:log(Level,Format,Args,Meta), + {noreply, State}; +handle_info({log,Level,Report,Meta}, State) -> + logger:log(Level,Report,Meta), + {noreply, State}; +handle_info({Ref,_Reply},State) when is_reference(Ref) -> + %% Assuming this is a timed-out gen_server reply - ignoring + {noreply, State}; +handle_info({'DOWN',_Ref,_Proc,_Pid,_Reason} = Down,State) -> + call_h_reply(Down,State); +handle_info(Unexpected,State) when element(1,Unexpected) == 'EXIT' -> + %% The simple handler will send an 'EXIT' message when it is replaced + %% We may as well ignore all 'EXIT' messages that we get + ?LOG_INTERNAL(debug, + [{logger,got_unexpected_message}, + {process,?SERVER}, + {message,Unexpected}]), + {noreply,State}; +handle_info(Unexpected,State) -> + ?LOG_INTERNAL(info, + [{logger,got_unexpected_message}, + {process,?SERVER}, + {message,Unexpected}]), + {noreply,State}. + +terminate(_Reason, _State) -> + ok. + +%%%=================================================================== +%%% Internal functions +%%%=================================================================== +call(Request) when is_tuple(Request) -> + Action = element(1,Request), + case get(?LOGGER_SERVER_TAG) of + true when + Action == add_handler; Action == remove_handler; + Action == add_filter; Action == remove_filter; + Action == change_config -> + {error,{attempting_syncronous_call_to_self,Request}}; + _ -> + gen_server:call(?SERVER,Request,?DEFAULT_LOGGER_CALL_TIMEOUT) + end. + + +do_add_filter(Tid,Id,{FId,_} = Filter) -> + case logger_config:get(Tid,Id) of + {ok,Config} -> + Filters = maps:get(filters,Config,[]), + case lists:keymember(FId,1,Filters) of + true -> + {error,{already_exist,FId}}; + false -> + logger_config:set(Tid,Id,Config#{filters=>[Filter|Filters]}) + end; + Error -> + Error + end. + +do_remove_filter(Tid,Id,FilterId) -> + case logger_config:get(Tid,Id) of + {ok,Config} -> + Filters0 = maps:get(filters,Config,[]), + case lists:keytake(FilterId,1,Filters0) of + {value,_,Filters} -> + logger_config:set(Tid,Id,Config#{filters=>Filters}); + false -> + {error,{not_found,FilterId}} + end; + Error -> + Error + end. + +default_config(primary) -> + #{level=>notice, + filters=>[], + filter_default=>log}; +default_config(Id) -> + #{id=>Id, + level=>all, + filters=>[], + filter_default=>log, + formatter=>{?DEFAULT_FORMATTER,#{}}}. +default_config(Id,Module) -> + (default_config(Id))#{module=>Module}. + +sanity_check(Owner,Key,Value) -> + sanity_check_1(Owner,[{Key,Value}]). + +sanity_check(Owner,Config) when is_map(Config) -> + sanity_check_1(Owner,maps:to_list(Config)); +sanity_check(_,Config) -> + {error,{invalid_config,Config}}. + +sanity_check_1(proxy,_Config) -> + ok; % Details are checked by logger_olp:set_opts/2 +sanity_check_1(Owner,Config) when is_list(Config) -> + try + Type = get_type(Owner), + check_config(Type,Config) + catch throw:Error -> {error,Error} + end. + +get_type(primary) -> + primary; +get_type(Id) -> + check_id(Id), + handler. + +check_config(Owner,[{level,Level}|Config]) -> + check_level(Level), + check_config(Owner,Config); +check_config(Owner,[{filters,Filters}|Config]) -> + check_filters(Filters), + check_config(Owner,Config); +check_config(Owner,[{filter_default,FD}|Config]) -> + check_filter_default(FD), + check_config(Owner,Config); +check_config(handler,[{formatter,Formatter}|Config]) -> + check_formatter(Formatter), + check_config(handler,Config); +check_config(primary,[C|_]) -> + throw({invalid_primary_config,C}); +check_config(handler,[{_,_}|Config]) -> + %% Arbitrary config elements are allowed for handlers + check_config(handler,Config); +check_config(_,[]) -> + ok. + +check_id(Id) when is_atom(Id) -> + ok; +check_id(Id) -> + throw({invalid_id,Id}). + +check_mod(Mod) when is_atom(Mod) -> + ok; +check_mod(Mod) -> + throw({invalid_module,Mod}). + +check_level(Level) -> + case lists:member(Level,?LEVELS) of + true -> + ok; + false -> + throw({invalid_level,Level}) + end. + +check_filters([{Id,{Fun,_Args}}|Filters]) when is_atom(Id), is_function(Fun,2) -> + check_filters(Filters); +check_filters([Filter|_]) -> + throw({invalid_filter,Filter}); +check_filters([]) -> + ok; +check_filters(Filters) -> + throw({invalid_filters,Filters}). + +check_filter_default(FD) when FD==stop; FD==log -> + ok; +check_filter_default(FD) -> + throw({invalid_filter_default,FD}). + +check_formatter({Mod,Config}) -> + check_mod(Mod), + try Mod:check_config(Config) of + ok -> ok; + {error,Error} -> throw(Error) + catch + C:R:S -> + case {C,R,S} of + {error,undef,[{Mod,check_config,[Config],_}|_]} -> + ok; + _ -> + throw({callback_crashed, + {C,R,logger:filter_stacktrace(?MODULE,S)}}) + end + end; +check_formatter(Formatter) -> + throw({invalid_formatter,Formatter}). + +%% When changing configuration for a handler, the id and module fields +%% can not be changed. +check_config_change(#{id:=Id,module:=Module},#{id:=Id,module:=Module}) -> + ok; +check_config_change(OldConfig,NewConfig) -> + {Old,New} = logger_server:diff_maps(maps:with([id,module],OldConfig), + maps:with([id,module],NewConfig)), + {error,{illegal_config_change,Old,New}}. + +call_h(Module, Function, Args, DefRet) -> + %% Not calling code:ensure_loaded + erlang:function_exported here, + %% since in some rare terminal cases, the code_server might not + %% exist and we'll get a deadlock in removing the handler. + try apply(Module, Function, Args) + catch + C:R:S -> + case {C,R,S} of + {error,undef,[{Module,Function=changing_config,Args,_}|_]} + when length(Args)=:=3 -> + %% Backwards compatible call, if changing_config/3 + %% did not exist. + call_h(Module, Function, tl(Args), DefRet); + {error,undef,[{Module,Function,Args,_}|_]} -> + DefRet; + _ -> + ST = logger:filter_stacktrace(?MODULE,S), + ?LOG_INTERNAL(error, + [{logger,callback_crashed}, + {process,?SERVER}, + {reason,{C,R,ST}}]), + {error,{callback_crashed,{C,R,ST}}} + end + end. + +%% There are all sort of API functions that can cause deadlocks if called +%% from the handler callbacks. So we spawn a process that does the request +%% for the logger_server. There are still APIs that will cause problems, +%% namely logger:add_handler +call_h_async(AsyncFun,PostFun,From,#state{ async_req = undefined } = State) -> + Parent = self(), + {Pid, Ref} = spawn_monitor( + fun() -> + put(?LOGGER_SERVER_TAG,true), + receive Ref -> Ref end, + gen_server:cast(Parent, {async_req_reply, Ref, AsyncFun()}) + end), + Pid ! Ref, + {noreply,State#state{ async_req = {Ref,PostFun,From} }}; +call_h_async(AsyncFun,PostFun,From,#state{ async_req_queue = Q } = State) -> + {noreply,State#state{ async_req_queue = queue:in({AsyncFun,PostFun,From},Q) }}. + +call_h_reply({async_req_reply,Ref,Reply}, + #state{ async_req = {Ref,PostFun,From}, async_req_queue = Q} = State) -> + erlang:demonitor(Ref,[flush]), + _ = gen_server:reply(From, PostFun(Reply)), + {Value,NewQ} = queue:out(Q), + NewState = State#state{ async_req = undefined, + async_req_queue = NewQ }, + case Value of + {value,{AsyncFun,NPostFun,NFrom}} -> + call_h_async(AsyncFun,NPostFun,NFrom,NewState); + empty -> + {noreply,NewState} + end; +call_h_reply({'DOWN',Ref,_Proc,Pid,Reason}, #state{ async_req = {Ref,_PostFun,_From}} = State) -> + %% This clause should only be triggered if someone explicitly sends an exit signal + %% to the spawned process. It is only here to make sure that the logger_server does + %% not deadlock if that happens. + ?LOG_INTERNAL(error, + [{logger,process_exited}, + {process,Pid}, + {reason,Reason}]), + call_h_reply( + {async_req_reply,Ref,{error,{logger_process_exited,Pid,Reason}}}, + State); +call_h_reply(Unexpected,State) -> + ?LOG_INTERNAL(info, + [{logger,got_unexpected_message}, + {process,?SERVER}, + {message,Unexpected}]), + {noreply,State}. + +%% Return two maps containing only the fields that differ. +diff_maps(M1,M2) -> + diffs(lists:sort(maps:to_list(M1)),lists:sort(maps:to_list(M2)),#{},#{}). + +diffs([H|T1],[H|T2],D1,D2) -> + diffs(T1,T2,D1,D2); +diffs([{K,V1}|T1],[{K,V2}|T2],D1,D2) -> + diffs(T1,T2,D1#{K=>V1},D2#{K=>V2}); +diffs([],[],D1,D2) -> + {D1,D2}. diff --git a/lib/kernel/src/logger_simple_h.erl b/lib/kernel/src/logger_simple_h.erl new file mode 100644 index 0000000000..a0d51dba25 --- /dev/null +++ b/lib/kernel/src/logger_simple_h.erl @@ -0,0 +1,215 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(logger_simple_h). + +-export([adding_handler/1, removing_handler/1, log/2]). + +%% This module implements a simple handler for logger. It is the +%% default used during system start. + +%%%----------------------------------------------------------------- +%%% Logger callback + +adding_handler(#{id:=simple}=Config) -> + Me = self(), + case whereis(?MODULE) of + undefined -> + {Pid,Ref} = spawn_opt(fun() -> init(Me) end, + [link,monitor,{message_queue_data,off_heap}]), + receive + {'DOWN',Ref,process,Pid,Reason} -> + {error,Reason}; + {Pid,started} -> + erlang:demonitor(Ref), + {ok,Config} + end; + _ -> + {error,{handler_process_name_already_exists,?MODULE}} + end. + +removing_handler(#{id:=simple}) -> + case whereis(?MODULE) of + undefined -> + ok; + Pid -> + Ref = erlang:monitor(process,Pid), + Pid ! stop, + receive {'DOWN',Ref,process,Pid,_} -> + ok + end + end. + +log(#{meta:=#{error_logger:=#{tag:=info_report,type:=Type}}},_Config) + when Type=/=std_info -> + %% Skip info reports that are not 'std_info' (ref simple logger in + %% error_logger) + ok; +log(#{msg:=_,meta:=#{time:=_}}=Log,_Config) -> + _ = case whereis(?MODULE) of + undefined -> + %% Is the node on the way down? Real emergency? + %% Log directly from client just to get it out + do_log( + #{level=>error, + msg=>{report,{error,simple_handler_process_dead}}, + meta=>#{time=>logger:timestamp()}}), + do_log(Log); + _ -> + ?MODULE ! {log,Log} + end, + ok; +log(_,_) -> + %% Unexpected log. + %% We don't want to crash the simple logger, so ignore this. + ok. + +%%%----------------------------------------------------------------- +%%% Process +init(Starter) -> + register(?MODULE,self()), + Starter ! {self(),started}, + loop(#{buffer_size=>10,dropped=>0,buffer=>[]}). + +loop(Buffer) -> + receive + stop -> + %% We replay the logger messages of there is + %% a default handler when the simple handler + %% is removed. + case logger:get_handler_config(default) of + {ok, _} -> + replay_buffer(Buffer); + _ -> + ok + end, + %% Before stopping, we unlink the logger process to avoid + %% an unexpected EXIT message + unlink(whereis(logger)), + ok; + {log,#{msg:=_,meta:=#{time:=_}}=Log} -> + do_log(Log), + loop(update_buffer(Buffer,Log)); + _ -> + %% Unexpected message - flush it! + loop(Buffer) + end. + +update_buffer(#{buffer_size:=0,dropped:=D}=Buffer,_Log) -> + Buffer#{dropped=>D+1}; +update_buffer(#{buffer_size:=S,buffer:=B}=Buffer,Log) -> + Buffer#{buffer_size=>S-1,buffer=>[Log|B]}. + +replay_buffer(#{ dropped := D, buffer := Buffer }) -> + lists:foreach( + fun F(#{msg := {Tag, Msg}} = L) when Tag =:= string; Tag =:= report -> + F(L#{ msg := Msg }); + F(#{ level := Level, msg := Msg, meta := MD}) -> + logger:log(Level, Msg, MD) + end, lists:reverse(Buffer, drop_msg(D))). + +drop_msg(0) -> + []; +drop_msg(N) -> + [#{level=>info, + msg=>{"Simple handler buffer full, dropped ~w messages",[N]}, + meta=>#{time=>logger:timestamp()}}]. + +%%%----------------------------------------------------------------- +%%% Internal + +%% Can't do io_lib:format + +do_log(#{msg:={report,Report}, + meta:=#{time:=T,error_logger:=#{type:=Type}}}) -> + display_date(T), + display_report(Type,Report); +do_log(#{msg:=Msg,meta:=#{time:=T}}) -> + display_date(T), + display(Msg). + +display_date(Timestamp) when is_integer(Timestamp) -> + Micro = Timestamp rem 1000000, + Sec = Timestamp div 1000000, + {{Y,Mo,D},{H,Mi,S}} = erlang:universaltime_to_localtime( + erlang:posixtime_to_universaltime(Sec)), + erlang:display_string( + integer_to_list(Y) ++ "-" ++ + pad(Mo,2) ++ "-" ++ + pad(D,2) ++ " " ++ + pad(H,2) ++ ":" ++ + pad(Mi,2) ++ ":" ++ + pad(S,2) ++ "." ++ + pad(Micro,6) ++ " "). + +pad(Int,Size) when is_integer(Int) -> + pad(integer_to_list(Int),Size); +pad(Str,Size) when length(Str)==Size -> + Str; +pad(Str,Size) -> + pad([$0|Str],Size). + +display({string,Chardata}) -> + try unicode:characters_to_list(Chardata) of + String -> erlang:display_string(String), erlang:display_string("\n") + catch _:_ -> erlang:display(Chardata) + end; +display({report,Report}) when is_map(Report) -> + display_report(maps:to_list(Report)); +display({report,Report}) -> + display_report(Report); +display({F, A}) when is_list(F), is_list(A) -> + erlang:display_string(F ++ "\n"), + [begin + erlang:display_string("\t"), + erlang:display(Arg) + end || Arg <- A], + ok. + +display_report(Atom, A) when is_atom(Atom) -> + %% The widest atom seems to be 'supervisor_report' at 17. + ColumnWidth = 20, + AtomString = atom_to_list(Atom), + AtomLength = length(AtomString), + Padding = lists:duplicate(ColumnWidth - AtomLength, $\s), + erlang:display_string(AtomString ++ Padding), + display_report(A); +display_report(F, A) -> + erlang:display({F, A}). + +display_report([A, []]) -> + %% Special case for crash reports when process has no links + display_report(A); +display_report(A = [_|_]) -> + case lists:all(fun({Key,_Value}) -> is_atom(Key); (_) -> false end, A) of + true -> + erlang:display_string("\n"), + lists:foreach( + fun({Key, Value}) -> + erlang:display_string( + " " ++ + atom_to_list(Key) ++ + ": "), + erlang:display(Value) + end, A); + false -> + erlang:display(A) + end; +display_report(A) -> + erlang:display(A). diff --git a/lib/kernel/src/logger_std_h.erl b/lib/kernel/src/logger_std_h.erl new file mode 100644 index 0000000000..c8f1acfca4 --- /dev/null +++ b/lib/kernel/src/logger_std_h.erl @@ -0,0 +1,643 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(logger_std_h). + +-include("logger.hrl"). +-include("logger_internal.hrl"). +-include("logger_h_common.hrl"). + +-include_lib("kernel/include/file.hrl"). + +%% API +-export([filesync/1]). + +%% logger_h_common callbacks +-export([init/2, check_config/4, config_changed/3, reset_state/2, + filesync/3, write/4, handle_info/3, terminate/3]). + +%% logger callbacks +-export([log/2, adding_handler/1, removing_handler/1, changing_config/3, + filter_config/1]). + +-define(DEFAULT_CALL_TIMEOUT, 5000). + +%%%=================================================================== +%%% API +%%%=================================================================== + +%%%----------------------------------------------------------------- +%%% +-spec filesync(Name) -> ok | {error,Reason} when + Name :: atom(), + Reason :: handler_busy | {badarg,term()}. + +filesync(Name) -> + logger_h_common:filesync(?MODULE,Name). + +%%%=================================================================== +%%% logger callbacks - just forward to logger_h_common +%%%=================================================================== + +%%%----------------------------------------------------------------- +%%% Handler being added +-spec adding_handler(Config) -> {ok,Config} | {error,Reason} when + Config :: logger:handler_config(), + Reason :: term(). + +adding_handler(Config) -> + logger_h_common:adding_handler(Config). + +%%%----------------------------------------------------------------- +%%% Updating handler config +-spec changing_config(SetOrUpdate, OldConfig, NewConfig) -> + {ok,Config} | {error,Reason} when + SetOrUpdate :: set | update, + OldConfig :: logger:handler_config(), + NewConfig :: logger:handler_config(), + Config :: logger:handler_config(), + Reason :: term(). + +changing_config(SetOrUpdate, OldConfig, NewConfig) -> + logger_h_common:changing_config(SetOrUpdate, OldConfig, NewConfig). + +%%%----------------------------------------------------------------- +%%% Handler being removed +-spec removing_handler(Config) -> ok when + Config :: logger:handler_config(). + +removing_handler(Config) -> + logger_h_common:removing_handler(Config). + +%%%----------------------------------------------------------------- +%%% Log a string or report +-spec log(LogEvent, Config) -> ok when + LogEvent :: logger:log_event(), + Config :: logger:handler_config(). + +log(LogEvent, Config) -> + logger_h_common:log(LogEvent, Config). + +%%%----------------------------------------------------------------- +%%% Remove internal fields from configuration +-spec filter_config(Config) -> Config when + Config :: logger:handler_config(). + +filter_config(Config) -> + logger_h_common:filter_config(Config). + +%%%=================================================================== +%%% logger_h_common callbacks +%%%=================================================================== +init(Name, Config) -> + MyConfig = maps:with([type,file,modes,file_check,max_no_bytes, + max_no_files,compress_on_rotate],Config), + case file_ctrl_start(Name, MyConfig) of + {ok,FileCtrlPid} -> + {ok,MyConfig#{file_ctrl_pid=>FileCtrlPid}}; + Error -> + Error + end. + +check_config(Name,set,undefined,NewHConfig) -> + check_h_config(merge_default_config(Name,normalize_config(NewHConfig))); +check_config(Name,SetOrUpdate,OldHConfig,NewHConfig0) -> + WriteOnce = maps:with([type,file,modes],OldHConfig), + Default = + case SetOrUpdate of + set -> + %% Do not reset write-once fields to defaults + merge_default_config(Name,WriteOnce); + update -> + OldHConfig + end, + + NewHConfig = maps:merge(Default, normalize_config(NewHConfig0)), + + %% Fail if write-once fields are changed + case maps:with([type,file,modes],NewHConfig) of + WriteOnce -> + check_h_config(NewHConfig); + Other -> + {error,{illegal_config_change,?MODULE,WriteOnce,Other}} + end. + +check_h_config(HConfig) -> + case check_h_config(maps:get(type,HConfig),maps:to_list(HConfig)) of + ok -> + {ok,fix_file_opts(HConfig)}; + {error,{Key,Value}} -> + {error,{invalid_config,?MODULE,#{Key=>Value}}} + end. + +check_h_config(Type,[{type,Type} | Config]) when Type =:= standard_io; + Type =:= standard_error; + Type =:= file -> + check_h_config(Type,Config); +check_h_config(file,[{file,File} | Config]) when is_list(File) -> + check_h_config(file,Config); +check_h_config(file,[{modes,Modes} | Config]) when is_list(Modes) -> + check_h_config(file,Config); +check_h_config(file,[{max_no_bytes,Size} | Config]) + when (is_integer(Size) andalso Size>0) orelse Size=:=infinity -> + check_h_config(file,Config); +check_h_config(file,[{max_no_files,Num} | Config]) when is_integer(Num), Num>=0 -> + check_h_config(file,Config); +check_h_config(file,[{compress_on_rotate,Bool} | Config]) when is_boolean(Bool) -> + check_h_config(file,Config); +check_h_config(file,[{file_check,FileCheck} | Config]) + when is_integer(FileCheck), FileCheck>=0 -> + check_h_config(file,Config); +check_h_config(_Type,[Other | _]) -> + {error,Other}; +check_h_config(_Type,[]) -> + ok. + +normalize_config(#{type:={file,File}}=HConfig) -> + HConfig#{type=>file,file=>File}; +normalize_config(#{type:={file,File,Modes}}=HConfig) -> + HConfig#{type=>file,file=>File,modes=>Modes}; +normalize_config(HConfig) -> + HConfig. + +merge_default_config(Name,#{type:=Type}=HConfig) -> + merge_default_config(Name,Type,HConfig); +merge_default_config(Name,#{file:=_}=HConfig) -> + merge_default_config(Name,file,HConfig); +merge_default_config(Name,HConfig) -> + merge_default_config(Name,standard_io,HConfig). + +merge_default_config(Name,Type,HConfig) -> + maps:merge(get_default_config(Name,Type),HConfig). + +get_default_config(Name,file) -> + #{type => file, + file => atom_to_list(Name), + modes => [raw,append], + file_check => 0, + max_no_bytes => infinity, + max_no_files => 0, + compress_on_rotate => false}; +get_default_config(_Name,Type) -> + #{type => Type}. + +fix_file_opts(#{modes:=Modes}=HConfig) -> + HConfig#{modes=>fix_modes(Modes)}; +fix_file_opts(HConfig) -> + HConfig#{filesync_repeat_interval=>no_repeat}. + +fix_modes(Modes) -> + %% Ensure write|append|exclusive + Modes1 = + case [M || M <- Modes, + lists:member(M,[write,append,exclusive])] of + [] -> [append|Modes]; + _ -> Modes + end, + %% Ensure raw + Modes2 = + case lists:member(raw,Modes) of + false -> [raw|Modes1]; + true -> Modes1 + end, + %% Ensure delayed_write + case lists:partition(fun(delayed_write) -> true; + ({delayed_write,_,_}) -> true; + (_) -> false + end, Modes2) of + {[],_} -> + [delayed_write|Modes2]; + _ -> + Modes2 + end. + +config_changed(_Name, + #{file_check:=FileCheck, + max_no_bytes:=Size, + max_no_files:=Count, + compress_on_rotate:=Compress}, + #{file_check:=FileCheck, + max_no_bytes:=Size, + max_no_files:=Count, + compress_on_rotate:=Compress}=State) -> + State; +config_changed(_Name, + #{file_check:=FileCheck, + max_no_bytes:=Size, + max_no_files:=Count, + compress_on_rotate:=Compress}, + #{file_ctrl_pid := FileCtrlPid} = State) -> + FileCtrlPid ! {update_config,#{file_check=>FileCheck, + max_no_bytes=>Size, + max_no_files=>Count, + compress_on_rotate=>Compress}}, + State#{file_check:=FileCheck, + max_no_bytes:=Size, + max_no_files:=Count, + compress_on_rotate:=Compress}; +config_changed(_Name,_NewHConfig,State) -> + State. + +filesync(_Name, SyncAsync, #{file_ctrl_pid := FileCtrlPid} = State) -> + Result = file_ctrl_filesync(SyncAsync, FileCtrlPid), + {Result,State}. + +write(_Name, SyncAsync, Bin, #{file_ctrl_pid:=FileCtrlPid} = State) -> + Result = file_write(SyncAsync, FileCtrlPid, Bin), + {Result,State}. + +reset_state(_Name, State) -> + State. + +handle_info(_Name, {'EXIT',Pid,Why}, #{file_ctrl_pid := Pid}=State) -> + %% file_ctrl_pid died, file error, terminate handler + exit({error,{write_failed,maps:with([type,file,modes],State),Why}}); +handle_info(_, _, State) -> + State. + +terminate(_Name, _Reason, #{file_ctrl_pid:=FWPid}) -> + case is_process_alive(FWPid) of + true -> + unlink(FWPid), + _ = file_ctrl_stop(FWPid), + MRef = erlang:monitor(process, FWPid), + receive + {'DOWN',MRef,_,_,_} -> + ok + after + ?DEFAULT_CALL_TIMEOUT -> + exit(FWPid, kill), + ok + end; + false -> + ok + end. + +%%%=================================================================== +%%% Internal functions +%%%=================================================================== + +%%%----------------------------------------------------------------- +%%% +open_log_file(HandlerName,#{type:=file, + file:=FileName, + modes:=Modes, + file_check:=FileCheck, + max_no_bytes:=Size, + max_no_files:=Count, + compress_on_rotate:=Compress}) -> + try + case filelib:ensure_dir(FileName) of + ok -> + case file:open(FileName, Modes) of + {ok, Fd} -> + {ok,#file_info{inode=INode}} = + file:read_file_info(FileName,[raw]), + UpdateModes = [append | Modes--[write,append,exclusive]], + State0 = #{handler_name=>HandlerName, + file_name=>FileName, + modes=>UpdateModes, + file_check=>FileCheck, + fd=>Fd, + inode=>INode, + last_check=>timestamp(), + synced=>false, + write_res=>ok, + sync_res=>ok}, + State = update_rotation({Size,Count,Compress},State0), + {ok,State}; + Error -> + Error + end; + Error -> + Error + end + catch + _:Reason -> {error,Reason} + end. + +close_log_file(#{fd:=Fd}) -> + _ = file:datasync(Fd), + _ = file:close(Fd), + ok; +close_log_file(_) -> + ok. + + + +%%%----------------------------------------------------------------- +%%% File control process + +file_ctrl_start(HandlerName, HConfig) -> + Starter = self(), + FileCtrlPid = + spawn_link(fun() -> + file_ctrl_init(HandlerName, HConfig, Starter) + end), + receive + {FileCtrlPid,ok} -> + {ok,FileCtrlPid}; + {FileCtrlPid,Error} -> + Error + after + ?DEFAULT_CALL_TIMEOUT -> + {error,file_ctrl_process_not_started} + end. + +file_ctrl_stop(Pid) -> + Pid ! stop. + +file_write(async, Pid, Bin) -> + Pid ! {log,Bin}, + ok; +file_write(sync, Pid, Bin) -> + file_ctrl_call(Pid, {log,Bin}). + +file_ctrl_filesync(async, Pid) -> + Pid ! filesync, + ok; +file_ctrl_filesync(sync, Pid) -> + file_ctrl_call(Pid, filesync). + +file_ctrl_call(Pid, Msg) -> + MRef = monitor(process, Pid), + Pid ! {Msg,{self(),MRef}}, + receive + {MRef,Result} -> + demonitor(MRef, [flush]), + Result; + {'DOWN',MRef,_Type,_Object,Reason} -> + {error,Reason} + after + ?DEFAULT_CALL_TIMEOUT -> + {error,{no_response,Pid}} + end. + +file_ctrl_init(HandlerName, + #{type:=file, + file:=FileName} = HConfig, + Starter) -> + process_flag(message_queue_data, off_heap), + case open_log_file(HandlerName,HConfig) of + {ok,State} -> + Starter ! {self(),ok}, + file_ctrl_loop(State); + {error,Reason} -> + Starter ! {self(),{error,{open_failed,FileName,Reason}}} + end; +file_ctrl_init(HandlerName, #{type:=StdDev}, Starter) -> + Starter ! {self(),ok}, + file_ctrl_loop(#{handler_name=>HandlerName,dev=>StdDev}). + +file_ctrl_loop(State) -> + receive + %% asynchronous event + {log,Bin} -> + State1 = write_to_dev(Bin,State), + file_ctrl_loop(State1); + + %% synchronous event + {{log,Bin},{From,MRef}} -> + State1 = ensure_file(State), + State2 = write_to_dev(Bin,State1), + From ! {MRef,ok}, + file_ctrl_loop(State2); + + filesync -> + State1 = sync_dev(State), + file_ctrl_loop(State1); + + {filesync,{From,MRef}} -> + State1 = ensure_file(State), + State2 = sync_dev(State1), + From ! {MRef,ok}, + file_ctrl_loop(State2); + + {update_config,#{file_check:=FileCheck, + max_no_bytes:=Size, + max_no_files:=Count, + compress_on_rotate:=Compress}} -> + State1 = update_rotation({Size,Count,Compress},State), + file_ctrl_loop(State1#{file_check=>FileCheck}); + + stop -> + close_log_file(State), + stopped + end. + +maybe_ensure_file(#{file_check:=0}=State) -> + ensure_file(State); +maybe_ensure_file(#{last_check:=T0,file_check:=CheckInt}=State) + when is_integer(CheckInt) -> + T = timestamp(), + if T-T0 > CheckInt -> ensure_file(State); + true -> State + end; +maybe_ensure_file(State) -> + State. + +%% In order to play well with tools like logrotate, we need to be able +%% to re-create the file if it has disappeared (e.g. if rotated by +%% logrotate) +ensure_file(#{fd:=Fd0,inode:=INode0,file_name:=FileName,modes:=Modes}=State) -> + case file:read_file_info(FileName,[raw]) of + {ok,#file_info{inode=INode0}} -> + State#{last_check=>timestamp()}; + _ -> + close_log_file(Fd0), + case file:open(FileName,Modes) of + {ok,Fd} -> + {ok,#file_info{inode=INode}} = + file:read_file_info(FileName,[raw]), + State#{fd=>Fd,inode=>INode, + last_check=>timestamp(), + synced=>true,sync_res=>ok}; + Error -> + exit({could_not_reopen_file,Error}) + end + end; +ensure_file(State) -> + State. + +write_to_dev(Bin,#{dev:=DevName}=State) -> + io:put_chars(DevName, Bin), + State; +write_to_dev(Bin, State) -> + State1 = #{fd:=Fd} = maybe_ensure_file(State), + Result = ?file_write(Fd, Bin), + State2 = maybe_rotate_file(Bin,State1), + maybe_notify_error(write,Result,State2), + State2#{synced=>false,write_res=>Result}. + +sync_dev(#{synced:=false}=State) -> + State1 = #{fd:=Fd} = maybe_ensure_file(State), + Result = ?file_datasync(Fd), + maybe_notify_error(filesync,Result,State1), + State1#{synced=>true,sync_res=>Result}; +sync_dev(State) -> + State. + +update_rotation({infinity,_,_},State) -> + maybe_remove_archives(0,State), + maps:remove(rotation,State); +update_rotation({Size,Count,Compress},#{file_name:=FileName} = State) -> + maybe_remove_archives(Count,State), + {ok,#file_info{size=CurrSize}} = file:read_file_info(FileName,[raw]), + State1 = State#{rotation=>#{size=>Size, + count=>Count, + compress=>Compress, + curr_size=>CurrSize}}, + maybe_update_compress(0,State1), + maybe_rotate_file(0,State1). + +maybe_remove_archives(Count,#{file_name:=FileName}=State) -> + Archive = rot_file_name(FileName,Count,false), + CompressedArchive = rot_file_name(FileName,Count,true), + case {file:read_file_info(Archive,[raw]), + file:read_file_info(CompressedArchive,[raw])} of + {{error,enoent},{error,enoent}} -> + ok; + _ -> + _ = file:delete(Archive), + _ = file:delete(CompressedArchive), + maybe_remove_archives(Count+1,State) + end. + +maybe_update_compress(Count,#{rotation:=#{count:=Count}}) -> + ok; +maybe_update_compress(N,#{file_name:=FileName, + rotation:=#{compress:=Compress}}=State) -> + Archive = rot_file_name(FileName,N,not Compress), + case file:read_file_info(Archive,[raw]) of + {ok,_} when Compress -> + compress_file(Archive); + {ok,_} -> + decompress_file(Archive); + _ -> + ok + end, + maybe_update_compress(N+1,State). + +maybe_rotate_file(Bin,#{rotation:=_}=State) when is_binary(Bin) -> + maybe_rotate_file(byte_size(Bin),State); +maybe_rotate_file(AddSize,#{rotation:=#{size:=RotSize, + curr_size:=CurrSize}=Rotation}=State) -> + NewSize = CurrSize + AddSize, + if NewSize>RotSize -> + rotate_file(State#{rotation=>Rotation#{curr_size=>NewSize}}); + true -> + State#{rotation=>Rotation#{curr_size=>NewSize}} + end; +maybe_rotate_file(_Bin,State) -> + State. + +rotate_file(#{fd:=Fd0,file_name:=FileName,modes:=Modes,rotation:=Rotation}=State) -> + State1 = sync_dev(State), + _ = file:close(Fd0), + _ = file:close(Fd0), + rotate_files(FileName,maps:get(count,Rotation),maps:get(compress,Rotation)), + case file:open(FileName,Modes) of + {ok,Fd} -> + {ok,#file_info{inode=INode}} = file:read_file_info(FileName,[raw]), + State1#{fd=>Fd,inode=>INode,rotation=>Rotation#{curr_size=>0}}; + Error -> + exit({could_not_reopen_file,Error}) + end. + +rotate_files(FileName,0,_Compress) -> + _ = file:delete(FileName), + ok; +rotate_files(FileName,1,Compress) -> + FileName0 = FileName++".0", + _ = file:rename(FileName,FileName0), + if Compress -> compress_file(FileName0); + true -> ok + end, + ok; +rotate_files(FileName,Count,Compress) -> + _ = file:rename(rot_file_name(FileName,Count-2,Compress), + rot_file_name(FileName,Count-1,Compress)), + rotate_files(FileName,Count-1,Compress). + +rot_file_name(FileName,Count,false) -> + FileName ++ "." ++ integer_to_list(Count); +rot_file_name(FileName,Count,true) -> + rot_file_name(FileName,Count,false) ++ ".gz". + +compress_file(FileName) -> + {ok,In} = file:open(FileName,[read,binary]), + {ok,Out} = file:open(FileName++".gz",[write]), + Z = zlib:open(), + zlib:deflateInit(Z, default, deflated, 31, 8, default), + compress_data(Z,In,Out), + zlib:deflateEnd(Z), + zlib:close(Z), + _ = file:close(In), + _ = file:close(Out), + _ = file:delete(FileName), + ok. + +compress_data(Z,In,Out) -> + case file:read(In,100000) of + {ok,Data} -> + Compressed = zlib:deflate(Z, Data), + _ = file:write(Out,Compressed), + compress_data(Z,In,Out); + eof -> + Compressed = zlib:deflate(Z, <<>>, finish), + _ = file:write(Out,Compressed), + ok + end. + +decompress_file(FileName) -> + {ok,In} = file:open(FileName,[read,binary]), + {ok,Out} = file:open(filename:rootname(FileName,".gz"),[write]), + Z = zlib:open(), + zlib:inflateInit(Z, 31), + decompress_data(Z,In,Out), + zlib:inflateEnd(Z), + zlib:close(Z), + _ = file:close(In), + _ = file:close(Out), + _ = file:delete(FileName), + ok. + +decompress_data(Z,In,Out) -> + case file:read(In,1000) of + {ok,Data} -> + Decompressed = zlib:inflate(Z, Data), + _ = file:write(Out,Decompressed), + decompress_data(Z,In,Out); + eof -> + ok + end. + +maybe_notify_error(_Op, ok, _State) -> + ok; +maybe_notify_error(Op, Result, #{write_res:=WR,sync_res:=SR}) + when (Op==write andalso Result==WR) orelse + (Op==filesync andalso Result==SR) -> + %% don't report same error twice + ok; +maybe_notify_error(Op, Error, #{handler_name:=HandlerName,file_name:=FileName}) -> + logger_h_common:error_notify({HandlerName,Op,FileName,Error}), + ok. + +timestamp() -> + erlang:monotonic_time(millisecond). diff --git a/lib/kernel/src/logger_sup.erl b/lib/kernel/src/logger_sup.erl new file mode 100644 index 0000000000..9ea8558a16 --- /dev/null +++ b/lib/kernel/src/logger_sup.erl @@ -0,0 +1,59 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017-2018. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(logger_sup). + +-behaviour(supervisor). + +%% API +-export([start_link/0]). + +%% Supervisor callbacks +-export([init/1]). + +-define(SERVER, ?MODULE). + +%%%=================================================================== +%%% API functions +%%%=================================================================== + +start_link() -> + supervisor:start_link({local, ?SERVER}, ?MODULE, []). + +%%%=================================================================== +%%% Supervisor callbacks +%%%=================================================================== + +init([]) -> + + SupFlags = #{strategy => one_for_one, + intensity => 1, + period => 5}, + + Watcher = #{id => logger_handler_watcher, + start => {logger_handler_watcher, start_link, []}, + shutdown => brutal_kill}, + + Proxy = logger_proxy:child_spec(), + + {ok, {SupFlags, [Watcher,Proxy]}}. + +%%%=================================================================== +%%% Internal functions +%%%=================================================================== diff --git a/lib/kernel/src/net_kernel.erl b/lib/kernel/src/net_kernel.erl index 7da89dd7cb..a9dc77837e 100644 --- a/lib/kernel/src/net_kernel.erl +++ b/lib/kernel/src/net_kernel.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2017. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -53,7 +53,7 @@ %% Documented API functions. --export([allow/1, +-export([allow/1, allowed/0, connect_node/1, monitor_nodes/1, monitor_nodes/2, @@ -70,8 +70,8 @@ protocol_childspecs/0, epmd_module/0]). --export([connect/1, disconnect/1, hidden_connect/1, passive_cnct/1]). --export([hidden_connect_node/1]). %% explicit connect +-export([disconnect/1, passive_cnct/1]). +-export([hidden_connect_node/1]). -export([set_net_ticktime/1, set_net_ticktime/2, get_net_ticktime/0]). -export([node_info/1, node_info/2, nodes_info/0, @@ -122,6 +122,7 @@ -record(connection, { node, %% remote node name + conn_id, %% Connection identity state, %% pending | up | up_pending owner, %% owner pid pending_owner, %% possible new owner @@ -170,6 +171,8 @@ kernel_apply(M,F,A) -> request({apply,M,F,A}). Nodes :: [node()]. allow(Nodes) -> request({allow, Nodes}). +allowed() -> request(allowed). + longnames() -> request(longnames). -spec stop() -> ok | {error, Reason} when @@ -221,8 +224,7 @@ get_net_ticktime() -> Error :: error | {error, term()}. monitor_nodes(Flag) -> case catch process_flag(monitor_nodes, Flag) of - true -> ok; - false -> ok; + N when is_integer(N) -> ok; _ -> mk_monitor_nodes_error(Flag, []) end. @@ -235,8 +237,7 @@ monitor_nodes(Flag) -> Error :: error | {error, term()}. monitor_nodes(Flag, Opts) -> case catch process_flag({monitor_nodes, Opts}, Flag) of - true -> ok; - false -> ok; + N when is_integer(N) -> ok; _ -> mk_monitor_nodes_error(Flag, Opts) end. @@ -247,14 +248,15 @@ ticktime_res(A) when is_atom(A) -> A. %% Called though BIF's -connect(Node) -> do_connect(Node, normal, false). %%% Long timeout if blocked (== barred), only affects nodes with %%% {dist_auto_connect, once} set. -passive_cnct(Node) -> do_connect(Node, normal, true). -disconnect(Node) -> request({disconnect, Node}). +passive_cnct(Node) -> + case request({passive_cnct, Node}) of + ignored -> false; + Other -> Other + end. -%% connect but not seen -hidden_connect(Node) -> do_connect(Node, hidden, false). +disconnect(Node) -> request({disconnect, Node}). %% Should this node publish itself on Node? publish_on_node(Node) when is_atom(Node) -> @@ -272,67 +274,24 @@ connect_node(Node) when is_atom(Node) -> hidden_connect_node(Node) when is_atom(Node) -> request({connect, hidden, Node}). -do_connect(Node, Type, WaitForBarred) -> %% Type = normal | hidden - case catch ets:lookup(sys_dist, Node) of - {'EXIT', _} -> - ?connect_failure(Node,{table_missing, sys_dist}), - false; - [#barred_connection{}] -> - case WaitForBarred of - false -> - false; - true -> - Pid = spawn(?MODULE,passive_connect_monitor,[self(),Node]), - receive - {Pid, true} -> - %%io:format("Net Kernel: barred connection (~p) " - %% "connected from other end.~n",[Node]), - true; - {Pid, false} -> - ?connect_failure(Node,{barred_connection, - ets:lookup(sys_dist, Node)}), - %%io:format("Net Kernel: barred connection (~p) " - %% "- failure.~n",[Node]), - false - end - end; - Else -> - case application:get_env(kernel, dist_auto_connect) of - {ok, never} -> - ?connect_failure(Node,{dist_auto_connect,never}), - false; - % This might happen due to connection close - % not beeing propagated to user space yet. - % Save the day by just not connecting... - {ok, once} when Else =/= [], - (hd(Else))#connection.state =:= up -> - ?connect_failure(Node,{barred_connection, - ets:lookup(sys_dist, Node)}), - false; - _ -> - request({connect, Type, Node}) - end - end. -passive_connect_monitor(Parent, Node) -> +passive_connect_monitor(From, Node) -> ok = monitor_nodes(true,[{node_type,all}]), - case lists:member(Node,nodes([connected])) of - true -> - ok = monitor_nodes(false,[{node_type,all}]), - Parent ! {self(),true}; - _ -> - Ref = make_ref(), - Tref = erlang:send_after(connecttime(),self(),Ref), - receive - Ref -> - ok = monitor_nodes(false,[{node_type,all}]), - Parent ! {self(), false}; - {nodeup,Node,_} -> - ok = monitor_nodes(false,[{node_type,all}]), - _ = erlang:cancel_timer(Tref), - Parent ! {self(),true} - end - end. + Reply = case lists:member(Node,nodes([connected])) of + true -> + true; + _ -> + receive + {nodeup,Node,_} -> + true + after connecttime() -> + false + end + end, + ok = monitor_nodes(false,[{node_type,all}]), + {Pid, Tag} = From, + erlang:send(Pid, {Tag, Reply}). + %% If the net_kernel isn't running we ignore all requests to the %% kernel, thus basically accepting them :-) @@ -393,41 +352,140 @@ init({Name, LongOrShortNames, TickT, CleanHalt}) -> {stop, Error} end. +do_auto_connect_1(Node, ConnId, From, State) -> + case ets:lookup(sys_dist, Node) of + [#barred_connection{}] -> + case ConnId of + passive_cnct -> + spawn(?MODULE,passive_connect_monitor,[From,Node]), + {noreply, State}; + _ -> + erts_internal:abort_connection(Node, ConnId), + {reply, false, State} + end; + + ConnLookup -> + do_auto_connect_2(Node, ConnId, From, State, ConnLookup) + end. + +do_auto_connect_2(Node, passive_cnct, From, State, ConnLookup) -> + try erts_internal:new_connection(Node) of + ConnId -> + do_auto_connect_2(Node, ConnId, From, State, ConnLookup) + catch + _:_ -> + error_logger:error_msg("~n** Cannot get connection id for node ~w~n", + [Node]), + {reply, false, State} + end; +do_auto_connect_2(Node, ConnId, From, State, ConnLookup) -> + case ConnLookup of + [#connection{conn_id=ConnId, state = up}] -> + {reply, true, State}; + [#connection{conn_id=ConnId, waiting=Waiting}=Conn] -> + case From of + noreply -> ok; + _ -> ets:insert(sys_dist, Conn#connection{waiting = [From|Waiting]}) + end, + {noreply, State}; + + _ -> + case application:get_env(kernel, dist_auto_connect) of + {ok, never} -> + ?connect_failure(Node,{dist_auto_connect,never}), + erts_internal:abort_connection(Node, ConnId), + {reply, false, State}; + + %% This might happen due to connection close + %% not beeing propagated to user space yet. + %% Save the day by just not connecting... + {ok, once} when ConnLookup =/= [], + (hd(ConnLookup))#connection.state =:= up -> + ?connect_failure(Node,{barred_connection, + ets:lookup(sys_dist, Node)}), + erts_internal:abort_connection(Node, ConnId), + {reply, false, State}; + _ -> + case setup(Node, ConnId, normal, From, State) of + {ok, SetupPid} -> + Owners = [{SetupPid, Node} | State#state.conn_owners], + {noreply,State#state{conn_owners=Owners}}; + _Error -> + ?connect_failure(Node, {setup_call, failed, _Error}), + erts_internal:abort_connection(Node, ConnId), + {reply, false, State} + end + end + end. + + +do_explicit_connect([#connection{conn_id = ConnId, state = up}], _, _, ConnId, _From, State) -> + {reply, true, State}; +do_explicit_connect([#connection{conn_id = ConnId}=Conn], _, _, ConnId, From, State) + when Conn#connection.state =:= pending; + Conn#connection.state =:= up_pending -> + Waiting = Conn#connection.waiting, + ets:insert(sys_dist, Conn#connection{waiting = [From|Waiting]}), + {noreply, State}; +do_explicit_connect([#barred_connection{}], Type, Node, ConnId, From , State) -> + %% Barred connection only affects auto_connect, ignore it. + do_explicit_connect([], Type, Node, ConnId, From , State); +do_explicit_connect(_ConnLookup, Type, Node, ConnId, From , State) -> + case setup(Node,ConnId,Type,From,State) of + {ok, SetupPid} -> + Owners = [{SetupPid, Node} | State#state.conn_owners], + {noreply,State#state{conn_owners=Owners}}; + _Error -> + ?connect_failure(Node, {setup_call, failed, _Error}), + {reply, false, State} + end. + %% ------------------------------------------------------------ %% handle_call. %% ------------------------------------------------------------ %% -%% Set up a connection to Node. -%% The response is delayed until the connection is up and -%% running. +%% Passive auto-connect to Node. +%% The response is delayed until the connection is up and running. +%% +handle_call({passive_cnct, Node}, From, State) when Node =:= node() -> + async_reply({reply, true, State}, From); +handle_call({passive_cnct, Node}, From, State) -> + verbose({passive_cnct, Node}, 1, State), + R = do_auto_connect_1(Node, passive_cnct, From, State), + return_call(R, From); + +%% +%% Explicit connect +%% The response is delayed until the connection is up and running. %% handle_call({connect, _, Node}, From, State) when Node =:= node() -> async_reply({reply, true, State}, From); handle_call({connect, Type, Node}, From, State) -> verbose({connect, Type, Node}, 1, State), - case ets:lookup(sys_dist, Node) of - [Conn] when Conn#connection.state =:= up -> - async_reply({reply, true, State}, From); - [Conn] when Conn#connection.state =:= pending -> - Waiting = Conn#connection.waiting, - ets:insert(sys_dist, Conn#connection{waiting = [From|Waiting]}), - {noreply, State}; - [Conn] when Conn#connection.state =:= up_pending -> - Waiting = Conn#connection.waiting, - ets:insert(sys_dist, Conn#connection{waiting = [From|Waiting]}), - {noreply, State}; - _ -> - case setup(Node,Type,From,State) of - {ok, SetupPid} -> - Owners = [{SetupPid, Node} | State#state.conn_owners], - {noreply,State#state{conn_owners=Owners}}; - _ -> - ?connect_failure(Node, {setup_call, failed}), - async_reply({reply, false, State}, From) - end - end; + ConnLookup = ets:lookup(sys_dist, Node), + R = try erts_internal:new_connection(Node) of + ConnId -> + R1 = do_explicit_connect(ConnLookup, Type, Node, ConnId, From, State), + case R1 of + {reply, true, _S} -> %% already connected + ok; + {noreply, _S} -> %% connection pending + ok; + {reply, false, _S} -> %% connection refused + erts_internal:abort_connection(Node, ConnId) + end, + R1 + + catch + _:_ -> + error_logger:error_msg("~n** Cannot get connection id for node ~w~n", + [Node]), + {reply, false, State} + end, + return_call(R, From); + %% %% Close the connection to Node. @@ -470,6 +528,9 @@ handle_call({allow, Nodes}, From, State) -> async_reply({reply,error,State}, From) end; +handle_call(allowed, From, #state{allowed = Allowed} = State) -> + async_reply({reply,{ok,Allowed},State}, From); + %% %% authentication, used by auth. Simply works as this: %% if the message comes through, the other node IS authorized. @@ -634,6 +695,25 @@ terminate(_Reason, State) -> %% ------------------------------------------------------------ %% +%% Asynchronous auto connect request +%% +handle_info({auto_connect,Node, DHandle}, State) -> + verbose({auto_connect, Node, DHandle}, 1, State), + ConnId = DHandle, + NewState = + case do_auto_connect_1(Node, ConnId, noreply, State) of + {noreply, S} -> %% Pending connection + S; + + {reply, true, S} -> %% Already connected + S; + + {reply, false, S} -> %% Connection refused + S + end, + {noreply, NewState}; + +%% %% accept a new connection. %% handle_info({accept,AcceptPid,Socket,Family,Proto}, State) -> @@ -713,14 +793,24 @@ handle_info({AcceptPid, {accept_pending,MyNode,Node,Address,Type}}, State) -> AcceptPid ! {self(), {accept_pending, already_pending}}, {noreply, State}; _ -> - ets:insert(sys_dist, #connection{node = Node, - state = pending, - owner = AcceptPid, - address = Address, - type = Type}), - AcceptPid ! {self(),{accept_pending,ok}}, - Owners = [{AcceptPid,Node} | State#state.conn_owners], - {noreply, State#state{conn_owners = Owners}} + try erts_internal:new_connection(Node) of + ConnId -> + ets:insert(sys_dist, #connection{node = Node, + conn_id = ConnId, + state = pending, + owner = AcceptPid, + address = Address, + type = Type}), + AcceptPid ! {self(),{accept_pending,ok}}, + Owners = [{AcceptPid,Node} | State#state.conn_owners], + {noreply, State#state{conn_owners = Owners}} + catch + _:_ -> + error_logger:error_msg("~n** Cannot get connection id for node ~w~n", + [Node]), + AcceptPid ! {self(),{accept_pending,nok_pending}}, + {noreply, State} + end end; handle_info({SetupPid, {is_pending, Node}}, State) -> @@ -906,6 +996,7 @@ pending_nodedown(Conn, Node, Type, State) -> % Don't bar connections that have never been alive %mark_sys_dist_nodedown(Node), % - instead just delete the node: + erts_internal:abort_connection(Node, Conn#connection.conn_id), ets:delete(sys_dist, Node), reply_waiting(Node,Conn#connection.waiting, false), case Type of @@ -920,7 +1011,9 @@ up_pending_nodedown(Conn, Node, _Reason, _Type, State) -> AcceptPid = Conn#connection.pending_owner, Owners = State#state.conn_owners, Pend = lists:keydelete(AcceptPid, 1, State#state.pend_owners), + erts_internal:abort_connection(Node, Conn#connection.conn_id), Conn1 = Conn#connection { owner = AcceptPid, + conn_id = erts_internal:new_connection(Node), pending_owner = undefined, state = pending }, ets:insert(sys_dist, Conn1), @@ -928,15 +1021,16 @@ up_pending_nodedown(Conn, Node, _Reason, _Type, State) -> State#state{conn_owners = [{AcceptPid,Node}|Owners], pend_owners = Pend}. -up_nodedown(_Conn, Node, _Reason, Type, State) -> - mark_sys_dist_nodedown(Node), +up_nodedown(Conn, Node, _Reason, Type, State) -> + mark_sys_dist_nodedown(Conn, Node), case Type of normal -> ?nodedown(Node, State); _ -> ok end, State. -mark_sys_dist_nodedown(Node) -> +mark_sys_dist_nodedown(Conn, Node) -> + erts_internal:abort_connection(Node, Conn#connection.conn_id), case application:get_env(kernel, dist_auto_connect) of {ok, once} -> ets:insert(sys_dist, #barred_connection{node = Node}); @@ -1179,15 +1273,8 @@ spawn_func(_,{From,Tag},M,F,A,Gleader) -> %% Set up connection to a new node. %% ----------------------------------------------------------- -setup(Node,Type,From,State) -> - Allowed = State#state.allowed, - case lists:member(Node, Allowed) of - false when Allowed =/= [] -> - error_msg("** Connection attempt with " - "disallowed node ~w ** ~n", [Node]), - {error, bad_node}; - _ -> - case select_mod(Node, State#state.listen) of +setup(Node, ConnId, Type, From, State) -> + case setup_check(Node, State) of {ok, L} -> Mod = L#listen.module, LAddr = L#listen.address, @@ -1200,18 +1287,38 @@ setup(Node,Type,From,State) -> Addr = LAddr#net_address { address = undefined, host = undefined }, + Waiting = case From of + noreply -> []; + _ -> [From] + end, ets:insert(sys_dist, #connection{node = Node, + conn_id = ConnId, state = pending, owner = Pid, - waiting = [From], + waiting = Waiting, address = Addr, type = normal}), {ok, Pid}; Error -> Error - end end. +setup_check(Node, State) -> + Allowed = State#state.allowed, + case lists:member(Node, Allowed) of + false when Allowed =/= [] -> + error_msg("** Connection attempt with " + "disallowed node ~w ** ~n", [Node]), + {error, bad_node}; + _ -> + case select_mod(Node, State#state.listen) of + {ok, _L}=OK -> OK; + Error -> Error + end + end. + + + %% %% Find a module that is willing to handle connection setup to Node %% @@ -1652,6 +1759,11 @@ verbose(_, _, _) -> getnode(P) when is_pid(P) -> node(P); getnode(P) -> P. +return_call({noreply, _State}=R, _From) -> + R; +return_call(R, From) -> + async_reply(R, From). + async_reply({reply, Msg, State}, From) -> async_gen_server_reply(From, Msg), {noreply, State}. @@ -1659,16 +1771,16 @@ async_reply({reply, Msg, State}, From) -> async_gen_server_reply(From, Msg) -> {Pid, Tag} = From, M = {Tag, Msg}, - case catch erlang:send(Pid, M, [nosuspend, noconnect]) of + try erlang:send(Pid, M, [nosuspend, noconnect]) of ok -> ok; nosuspend -> _ = spawn(fun() -> catch erlang:send(Pid, M, [noconnect]) end), ok; noconnect -> - ok; % The gen module takes care of this case. - {'EXIT', _} -> - ok + ok % The gen module takes care of this case. + catch + _:_ -> ok end. call_owner(Owner, Msg) -> diff --git a/lib/kernel/src/os.erl b/lib/kernel/src/os.erl index a4b4f798f9..29a26674ba 100644 --- a/lib/kernel/src/os.erl +++ b/lib/kernel/src/os.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2017. All Rights Reserved. +%% Copyright Ericsson AB 1997-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -25,41 +25,36 @@ -include("file.hrl"). +-export_type([env_var_name/0, env_var_value/0, env_var_name_value/0]). + +-export([getenv/0, getenv/1, getenv/2, putenv/2, unsetenv/1]). + %%% BIFs --export([getenv/0, getenv/1, getenv/2, getpid/0, - perf_counter/0, perf_counter/1, - putenv/2, set_signal/2, system_time/0, system_time/1, - timestamp/0, unsetenv/1]). +-export([get_env_var/1, getpid/0, list_env_vars/0, perf_counter/0, + perf_counter/1, set_env_var/2, set_signal/2, system_time/0, + system_time/1, timestamp/0, unset_env_var/1]). -type os_command() :: atom() | io_lib:chars(). -type os_command_opts() :: #{ max_size => non_neg_integer() | infinity }. -export_type([os_command/0, os_command_opts/0]). --spec getenv() -> [string()]. +-type env_var_name() :: nonempty_string(). -getenv() -> erlang:nif_error(undef). +-type env_var_value() :: string(). --spec getenv(VarName) -> Value | false when - VarName :: string(), - Value :: string(). +-type env_var_name_value() :: nonempty_string(). -getenv(_) -> +-spec list_env_vars() -> [{env_var_name(), env_var_value()}]. +list_env_vars() -> erlang:nif_error(undef). --spec getenv(VarName, DefaultValue) -> Value when - VarName :: string(), - DefaultValue :: string(), - Value :: string(). - -getenv(VarName, DefaultValue) -> - case os:getenv(VarName) of - false -> - DefaultValue; - Value -> - Value - end. +-spec get_env_var(VarName) -> Value | false when + VarName :: env_var_name(), + Value :: env_var_value(). +get_env_var(_VarName) -> + erlang:nif_error(undef). -spec getpid() -> Value when Value :: string(). @@ -79,11 +74,10 @@ perf_counter() -> perf_counter(Unit) -> erlang:convert_time_unit(os:perf_counter(), perf_counter, Unit). --spec putenv(VarName, Value) -> true when - VarName :: string(), - Value :: string(). - -putenv(_, _) -> +-spec set_env_var(VarName, Value) -> true when + VarName :: env_var_name(), + Value :: env_var_value(). +set_env_var(_, _) -> erlang:nif_error(undef). -spec system_time() -> integer(). @@ -103,10 +97,9 @@ system_time(_Unit) -> timestamp() -> erlang:nif_error(undef). --spec unsetenv(VarName) -> true when - VarName :: string(). - -unsetenv(_) -> +-spec unset_env_var(VarName) -> true when + VarName :: env_var_name(). +unset_env_var(_) -> erlang:nif_error(undef). -spec set_signal(Signal, Option) -> 'ok' when @@ -120,6 +113,39 @@ set_signal(_Signal, _Option) -> %%% End of BIFs +-spec getenv() -> [env_var_name_value()]. +getenv() -> + [lists:flatten([Key, $=, Value]) || {Key, Value} <- os:list_env_vars() ]. + +-spec getenv(VarName) -> Value | false when + VarName :: env_var_name(), + Value :: env_var_value(). +getenv(VarName) -> + os:get_env_var(VarName). + +-spec getenv(VarName, DefaultValue) -> Value when + VarName :: env_var_name(), + DefaultValue :: env_var_value(), + Value :: env_var_value(). +getenv(VarName, DefaultValue) -> + case os:getenv(VarName) of + false -> + DefaultValue; + Value -> + Value + end. + +-spec putenv(VarName, Value) -> true when + VarName :: env_var_name(), + Value :: env_var_value(). +putenv(VarName, Value) -> + os:set_env_var(VarName, Value). + +-spec unsetenv(VarName) -> true when + VarName :: env_var_name(). +unsetenv(VarName) -> + os:unset_env_var(VarName). + -spec type() -> {Osfamily, Osname} when Osfamily :: unix | win32, Osname :: atom(). @@ -183,7 +209,7 @@ verify_executable(Name0, [Ext|Rest], OrigExtensions) -> end; verify_executable(Name, [], OrigExtensions) when OrigExtensions =/= [""] -> %% Windows %% Will only happen on windows, hence case insensitivity - case can_be_full_name(string:to_lower(Name),OrigExtensions) of + case can_be_full_name(string:lowercase(Name),OrigExtensions) of true -> verify_executable(Name,[""],[""]); _ -> @@ -245,8 +271,7 @@ cmd(Cmd) -> Command :: os_command(), Options :: os_command_opts(). cmd(Cmd, Opts) -> - validate(Cmd), - {SpawnCmd, SpawnOpts, SpawnInput, Eot} = mk_cmd(os:type(), Cmd), + {SpawnCmd, SpawnOpts, SpawnInput, Eot} = mk_cmd(os:type(), validate(Cmd)), Port = open_port({spawn, SpawnCmd}, [binary, stderr_to_stdout, stream, in, hide | SpawnOpts]), MonRef = erlang:monitor(port, Port), @@ -266,8 +291,6 @@ mk_cmd({win32,Wtype}, Cmd) -> {Cspec,_} -> lists:concat([Cspec," /c",Cmd]) end, {Command, [], [], <<>>}; -mk_cmd(OsType,Cmd) when is_atom(Cmd) -> - mk_cmd(OsType, atom_to_list(Cmd)); mk_cmd(_,Cmd) -> %% Have to send command in like this in order to make sh commands like %% cd and ulimit available @@ -290,17 +313,33 @@ mk_cmd(_,Cmd) -> <<$\^D>>}. validate(Atom) when is_atom(Atom) -> - ok; + validate(atom_to_list(Atom)); validate(List) when is_list(List) -> - validate1(List). + case validate1(List) of + false -> + List; + true -> + %% Had zeros at end; remove them... + string:trim(List, trailing, [0]) + end. -validate1([C|Rest]) when is_integer(C) -> +validate1([0|Rest]) -> + validate2(Rest); +validate1([C|Rest]) when is_integer(C), C > 0 -> validate1(Rest); validate1([List|Rest]) when is_list(List) -> - validate1(List), - validate1(Rest); + validate1(List) or validate1(Rest); validate1([]) -> - ok. + false. + +%% Ensure that the rest is zero only... +validate2([]) -> + true; +validate2([0|Rest]) -> + validate2(Rest); +validate2([List|Rest]) when is_list(List) -> + validate2(List), + validate2(Rest). get_data(Port, MonRef, Eot, Sofar, Size, Max) -> receive diff --git a/lib/kernel/src/raw_file_io.erl b/lib/kernel/src/raw_file_io.erl new file mode 100644 index 0000000000..e3c07c8f78 --- /dev/null +++ b/lib/kernel/src/raw_file_io.erl @@ -0,0 +1,75 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(raw_file_io). + +-export([open/2]). + +open(Filename, Modes) -> + %% Layers are applied in this order, and the listed modules will call this + %% function again as necessary. eg. a raw compressed delayed file in list + %% mode will walk through [_list -> _compressed -> _delayed -> _raw]. + ModuleOrder = [{raw_file_io_list, fun match_list/1}, + {raw_file_io_compressed, fun match_compressed/1}, + {raw_file_io_delayed, fun match_delayed/1}, + {raw_file_io_raw, fun match_raw/1}], + open_1(ModuleOrder, Filename, add_implicit_modes(Modes)). +open_1([], _Filename, _Modes) -> + error(badarg); +open_1([{Module, Match} | Rest], Filename, Modes) -> + case lists:any(Match, Modes) of + true -> + {Options, ChildModes} = + lists:partition(fun(Mode) -> Match(Mode) end, Modes), + Module:open_layer(Filename, ChildModes, Options); + false -> + open_1(Rest, Filename, Modes) + end. + +%% 'read' and 'list' mode are enabled unless disabled by another option, so +%% we'll explicitly add them to avoid duplicating this logic in child layers. +add_implicit_modes(Modes0) -> + Modes1 = add_unless_matched(Modes0, fun match_writable/1, read), + add_unless_matched(Modes1, fun match_binary/1, list). +add_unless_matched(Modes, Match, Default) -> + case lists:any(Match, Modes) of + false -> [Default | Modes]; + true -> Modes + end. + +match_list(list) -> true; +match_list(_Other) -> false. + +match_compressed(compressed) -> true; +match_compressed(_Other) -> false. + +match_delayed({delayed_write, _Size, _Timeout}) -> true; +match_delayed(delayed_write) -> true; +match_delayed(_Other) -> false. + +match_raw(raw) -> true; +match_raw(_Other) -> false. + +match_writable(write) -> true; +match_writable(append) -> true; +match_writable(exclusive) -> true; +match_writable(_Other) -> false. + +match_binary(binary) -> true; +match_binary(_Other) -> false. diff --git a/lib/kernel/src/raw_file_io_compressed.erl b/lib/kernel/src/raw_file_io_compressed.erl new file mode 100644 index 0000000000..d5ab042d25 --- /dev/null +++ b/lib/kernel/src/raw_file_io_compressed.erl @@ -0,0 +1,134 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(raw_file_io_compressed). + +-export([close/1, sync/1, datasync/1, truncate/1, advise/4, allocate/3, + position/2, write/2, pwrite/2, pwrite/3, + read_line/1, read/2, pread/2, pread/3]). + +%% OTP internal. +-export([ipread_s32bu_p32bu/3, sendfile/8]). + +-export([open_layer/3]). + +-include("file_int.hrl"). + +open_layer(Filename, Modes, Options) -> + IsAppend = lists:member(append, Modes), + IsDeflate = lists:member(write, Modes), + IsInflate = lists:member(read, Modes), + if + IsDeflate, IsInflate; IsAppend -> + {error, einval}; + IsDeflate, not IsInflate -> + start_server_module(raw_file_io_deflate, Filename, Modes, Options); + IsInflate -> + start_server_module(raw_file_io_inflate, Filename, Modes, Options) + end. + +start_server_module(Module, Filename, Modes, Options) -> + Secret = make_ref(), + case gen_statem:start(Module, {self(), Secret, Options}, []) of + {ok, Pid} -> open_next_layer(Pid, Secret, Filename, Modes); + Other -> Other + end. + +open_next_layer(Pid, Secret, Filename, Modes) -> + case gen_statem:call(Pid, {'$open', Secret, Filename, Modes}, infinity) of + ok -> + PublicFd = #file_descriptor{ + module = raw_file_io_compressed, data = {self(), Pid} }, + {ok, PublicFd}; + Other -> Other + end. + +close(Fd) -> + wrap_call(Fd, [close]). + +sync(Fd) -> + wrap_call(Fd, [sync]). +datasync(Fd) -> + wrap_call(Fd, [datasync]). + +truncate(Fd) -> + wrap_call(Fd, [truncate]). + +advise(Fd, Offset, Length, Advise) -> + wrap_call(Fd, [advise, Offset, Length, Advise]). +allocate(Fd, Offset, Length) -> + wrap_call(Fd, [allocate, Offset, Length]). + +position(Fd, Mark) -> + wrap_call(Fd, [position, Mark]). + +write(Fd, IOData) -> + try + CompactedData = erlang:iolist_to_iovec(IOData), + wrap_call(Fd, [write, CompactedData]) + catch + error:badarg -> {error, badarg} + end. + +pwrite(Fd, Offset, IOData) -> + try + CompactedData = erlang:iolist_to_iovec(IOData), + wrap_call(Fd, [pwrite, Offset, CompactedData]) + catch + error:badarg -> {error, badarg} + end. +pwrite(Fd, LocBytes) -> + try + CompactedLocBytes = + [ {Offset, erlang:iolist_to_iovec(IOData)} || + {Offset, IOData} <- LocBytes ], + wrap_call(Fd, [pwrite, CompactedLocBytes]) + catch + error:badarg -> {error, badarg} + end. + +read_line(Fd) -> + wrap_call(Fd, [read_line]). +read(Fd, Size) -> + wrap_call(Fd, [read, Size]). +pread(Fd, Offset, Size) -> + wrap_call(Fd, [pread, Offset, Size]). +pread(Fd, LocNums) -> + wrap_call(Fd, [pread, LocNums]). + +ipread_s32bu_p32bu(Fd, Offset, MaxSize) -> + wrap_call(Fd, [ipread_s32bu_p32bu, Offset, MaxSize]). + +sendfile(_,_,_,_,_,_,_,_) -> + {error, enotsup}. + +wrap_call(Fd, Command) -> + {_Owner, Pid} = get_fd_data(Fd), + try gen_statem:call(Pid, Command, infinity) of + Result -> Result + catch + exit:{noproc, _StackTrace} -> {error, einval} + end. + +get_fd_data(#file_descriptor{ data = Data }) -> + {Owner, _ServerPid} = Data, + case self() of + Owner -> Data; + _ -> error(not_on_controlling_process) + end. diff --git a/lib/kernel/src/raw_file_io_deflate.erl b/lib/kernel/src/raw_file_io_deflate.erl new file mode 100644 index 0000000000..acfc546743 --- /dev/null +++ b/lib/kernel/src/raw_file_io_deflate.erl @@ -0,0 +1,159 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(raw_file_io_deflate). + +-behavior(gen_statem). + +-export([init/1, callback_mode/0, terminate/3]). +-export([opening/3, opened/3]). + +-include("file_int.hrl"). + +-define(GZIP_WBITS, 16 + 15). + +callback_mode() -> state_functions. + +init({Owner, Secret, [compressed]}) -> + Monitor = monitor(process, Owner), + Z = zlib:open(), + ok = zlib:deflateInit(Z, default, deflated, ?GZIP_WBITS, 8, default), + Data = + #{ owner => Owner, + monitor => Monitor, + secret => Secret, + position => 0, + zlib => Z }, + {ok, opening, Data}. + +opening({call, From}, {'$open', Secret, Filename, Modes}, #{ secret := Secret } = Data) -> + case raw_file_io:open(Filename, Modes) of + {ok, PrivateFd} -> + NewData = Data#{ handle => PrivateFd }, + {next_state, opened, NewData, [{reply, From, ok}]}; + Other -> + {stop_and_reply, normal, [{reply, From, Other}]} + end; +opening(_Event, _Contents, _Data) -> + {keep_state_and_data, [postpone]}. + +%% + +opened(info, {'DOWN', Monitor, process, _Owner, Reason}, #{ monitor := Monitor } = Data) -> + if + Reason =/= kill -> flush_deflate_state(Data); + Reason =:= kill -> ignored + end, + {stop, shutdown}; + +opened(info, _Message, _Data) -> + keep_state_and_data; + +opened({call, {Owner, _Tag} = From}, [close], #{ owner := Owner } = Data) -> + #{ handle := PrivateFd } = Data, + Response = + case flush_deflate_state(Data) of + ok -> ?CALL_FD(PrivateFd, close, []); + Other -> Other + end, + {stop_and_reply, normal, [{reply, From, Response}]}; + +opened({call, {Owner, _Tag} = From}, [position, Mark], #{ owner := Owner } = Data) -> + case position(Data, Mark) of + {ok, NewData, Result} -> + Response = {ok, Result}, + {keep_state, NewData, [{reply, From, Response}]}; + Other -> + {keep_state_and_data, [{reply, From, Other}]} + end; + +opened({call, {Owner, _Tag} = From}, [write, IOVec], #{ owner := Owner } = Data) -> + case write(Data, IOVec) of + {ok, NewData} -> {keep_state, NewData, [{reply, From, ok}]}; + Other -> {keep_state_and_data, [{reply, From, Other}]} + end; + +opened({call, {Owner, _Tag} = From}, [read, _Size], #{ owner := Owner }) -> + Response = {error, ebadf}, + {keep_state_and_data, [{reply, From, Response}]}; + +opened({call, {Owner, _Tag} = From}, [read_line], #{ owner := Owner }) -> + Response = {error, ebadf}, + {keep_state_and_data, [{reply, From, Response}]}; + +opened({call, {Owner, _Tag} = From}, _Command, #{ owner := Owner }) -> + Response = {error, enotsup}, + {keep_state_and_data, [{reply, From, Response}]}; + +opened({call, _From}, _Command, _Data) -> + %% The client functions filter this out, so we'll crash if the user does + %% anything stupid on purpose. + {shutdown, protocol_violation}; + +opened(_Event, _Request, _Data) -> + keep_state_and_data. + +write(Data, IOVec) -> + #{ handle := PrivateFd, position := Position, zlib := Z } = Data, + UncompressedSize = iolist_size(IOVec), + case ?CALL_FD(PrivateFd, write, [zlib:deflate(Z, IOVec)]) of + ok -> {ok, Data#{ position := (Position + UncompressedSize) }}; + Other -> Other + end. + +%% +%% We support "seeking" forward as long as it isn't relative to EOF. +%% +%% Seeking is a bit of a misnomer as it's really just compressing zeroes until +%% we reach the desired point, but it has always behaved like this. +%% + +position(Data, Mark) when is_atom(Mark) -> + position(Data, {Mark, 0}); +position(Data, Offset) when is_integer(Offset) -> + position(Data, {bof, Offset}); +position(Data, {bof, Offset}) when is_integer(Offset) -> + position_1(Data, Offset); +position(Data, {cur, Offset}) when is_integer(Offset) -> + #{ position := Position } = Data, + position_1(Data, Position + Offset); +position(_Data, {eof, Offset}) when is_integer(Offset) -> + {error, einval}; +position(_Data, _Any) -> + {error, badarg}. + +position_1(#{ position := Desired } = Data, Desired) -> + {ok, Data, Desired}; +position_1(#{ position := Current } = Data, Desired) when Current < Desired -> + BytesToWrite = min(Desired - Current, 4 bsl 20), + case write(Data, <<0:(BytesToWrite)/unit:8>>) of + {ok, NewData} -> position_1(NewData, Desired); + Other -> Other + end; +position_1(#{ position := Current }, Desired) when Current > Desired -> + {error, einval}. + +flush_deflate_state(#{ handle := PrivateFd, zlib := Z }) -> + case ?CALL_FD(PrivateFd, write, [zlib:deflate(Z, [], finish)]) of + ok -> ok; + Other -> Other + end. + +terminate(_Reason, _State, _Data) -> + ok. diff --git a/lib/kernel/src/raw_file_io_delayed.erl b/lib/kernel/src/raw_file_io_delayed.erl new file mode 100644 index 0000000000..d2ad7550a1 --- /dev/null +++ b/lib/kernel/src/raw_file_io_delayed.erl @@ -0,0 +1,320 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(raw_file_io_delayed). + +-behavior(gen_statem). + +-export([close/1, sync/1, datasync/1, truncate/1, advise/4, allocate/3, + position/2, write/2, pwrite/2, pwrite/3, + read_line/1, read/2, pread/2, pread/3]). + +%% OTP internal. +-export([ipread_s32bu_p32bu/3, sendfile/8]). + +-export([open_layer/3]). + +-export([init/1, callback_mode/0, terminate/3]). +-export([opening/3, opened/3]). + +-include("file_int.hrl"). + +open_layer(Filename, Modes, Options) -> + Secret = make_ref(), + case gen_statem:start(?MODULE, {self(), Secret, Options}, []) of + {ok, Pid} -> + gen_statem:call(Pid, {'$open', Secret, Filename, Modes}, infinity); + Other -> + Other + end. + +callback_mode() -> state_functions. + +init({Owner, Secret, Options}) -> + Monitor = monitor(process, Owner), + Defaults = + #{ owner => Owner, + monitor => Monitor, + secret => Secret, + timer => none, + pid => self(), + buffer => prim_buffer:new(), + delay_size => 64 bsl 10, + delay_time => 2000 }, + Data = fill_delay_values(Defaults, Options), + {ok, opening, Data}. + +fill_delay_values(Data, []) -> + Data; +fill_delay_values(Data, [{delayed_write, Size, Time} | Options]) -> + fill_delay_values(Data#{ delay_size => Size, delay_time => Time }, Options); +fill_delay_values(Data, [_ | Options]) -> + fill_delay_values(Data, Options). + +opening({call, From}, {'$open', Secret, Filename, Modes}, #{ secret := Secret } = Data) -> + case raw_file_io:open(Filename, Modes) of + {ok, PrivateFd} -> + PublicData = maps:with([owner, buffer, delay_size, pid], Data), + PublicFd = #file_descriptor{ module = ?MODULE, data = PublicData }, + + NewData = Data#{ handle => PrivateFd }, + Response = {ok, PublicFd}, + {next_state, opened, NewData, [{reply, From, Response}]}; + Other -> + {stop_and_reply, normal, [{reply, From, Other}]} + end; +opening(_Event, _Contents, _Data) -> + {keep_state_and_data, [postpone]}. + +%% + +opened(info, {'$timed_out', Secret}, #{ secret := Secret } = Data) -> + %% If the user writes something at this exact moment, the flush will fail + %% and the timer won't reset on the next write since the buffer won't be + %% empty (Unless we collided on a flush). We therefore reset the timeout to + %% ensure that data won't sit idle for extended periods of time. + case try_flush_write_buffer(Data) of + busy -> gen_statem:cast(self(), '$reset_timeout'); + ok -> ok + end, + {keep_state, Data#{ timer => none }, []}; + +opened(info, {'DOWN', Monitor, process, _Owner, Reason}, #{ monitor := Monitor } = Data) -> + if + Reason =/= kill -> try_flush_write_buffer(Data); + Reason =:= kill -> ignored + end, + {stop, shutdown}; + +opened(info, _Message, _Data) -> + keep_state_and_data; + +opened({call, {Owner, _Tag} = From}, [close], #{ owner := Owner } = Data) -> + case flush_write_buffer(Data) of + ok -> + #{ handle := PrivateFd } = Data, + Response = ?CALL_FD(PrivateFd, close, []), + {stop_and_reply, normal, [{reply, From, Response}]}; + Other -> + {stop_and_reply, normal, [{reply, From, Other}]} + end; + +opened({call, {Owner, _Tag} = From}, '$wait', #{ owner := Owner }) -> + %% Used in write/2 to synchronize writes on lock conflicts. + {keep_state_and_data, [{reply, From, ok}]}; + +opened({call, {Owner, _Tag} = From}, '$synchronous_flush', #{ owner := Owner } = Data) -> + cancel_flush_timeout(Data), + Response = flush_write_buffer(Data), + {keep_state_and_data, [{reply, From, Response}]}; + +opened({call, {Owner, _Tag} = From}, Command, #{ owner := Owner } = Data) -> + Response = + case flush_write_buffer(Data) of + ok -> dispatch_command(Data, Command); + Other -> Other + end, + {keep_state_and_data, [{reply, From, Response}]}; + +opened({call, _From}, _Command, _Data) -> + %% The client functions filter this out, so we'll crash if the user does + %% anything stupid on purpose. + {shutdown, protocol_violation}; + +opened(cast, '$reset_timeout', #{ delay_time := Timeout, secret := Secret } = Data) -> + cancel_flush_timeout(Data), + Timer = erlang:send_after(Timeout, self(), {'$timed_out', Secret}), + {keep_state, Data#{ timer => Timer }, []}; + +opened(cast, _Message, _Data) -> + {keep_state_and_data, []}. + +dispatch_command(Data, [Function | Args]) -> + #{ handle := Handle } = Data, + Module = Handle#file_descriptor.module, + apply(Module, Function, [Handle | Args]). + +cancel_flush_timeout(#{ timer := none }) -> + ok; +cancel_flush_timeout(#{ timer := Timer }) -> + _ = erlang:cancel_timer(Timer, [{async, true}]), + ok. + +try_flush_write_buffer(#{ buffer := Buffer, handle := PrivateFd }) -> + case prim_buffer:try_lock(Buffer) of + acquired -> + flush_write_buffer_1(Buffer, PrivateFd), + prim_buffer:unlock(Buffer), + ok; + busy -> + busy + end. + +%% This is only safe to use when there is no chance of conflict with the owner +%% process, or in other words, "during synchronous calls outside of the locked +%% section of write/2" +flush_write_buffer(#{ buffer := Buffer, handle := PrivateFd }) -> + acquired = prim_buffer:try_lock(Buffer), + Result = flush_write_buffer_1(Buffer, PrivateFd), + prim_buffer:unlock(Buffer), + Result. + +flush_write_buffer_1(Buffer, PrivateFd) -> + case prim_buffer:size(Buffer) of + Size when Size > 0 -> + ?CALL_FD(PrivateFd, write, [prim_buffer:read_iovec(Buffer, Size)]); + 0 -> + ok + end. + +terminate(_Reason, _State, _Data) -> + ok. + +%% Client functions + +write(Fd, IOData) -> + try + enqueue_write(Fd, erlang:iolist_to_iovec(IOData)) + catch + error:badarg -> {error, badarg} + end. +enqueue_write(_Fd, []) -> + ok; +enqueue_write(Fd, IOVec) -> + %% get_fd_data will reject everyone except the process that opened the Fd, + %% so we can't race with anyone except the wrapper process. + #{ delay_size := DelaySize, + buffer := Buffer, + pid := Pid } = get_fd_data(Fd), + case prim_buffer:try_lock(Buffer) of + acquired -> + %% (The wrapper process will exit without flushing if we're killed + %% while holding the lock). + enqueue_write_locked(Pid, Buffer, DelaySize, IOVec); + busy -> + %% This can only happen while we're processing a timeout in the + %% wrapper process, so we perform a bogus call to get a completion + %% notification before trying again. + gen_statem:call(Pid, '$wait'), + enqueue_write(Fd, IOVec) + end. +enqueue_write_locked(Pid, Buffer, DelaySize, IOVec) -> + %% The synchronous operations (write, forced flush) are safe since we're + %% running on the only process that can fill the buffer; a timeout being + %% processed just before $synchronous_flush will cause the flush to nop, + %% and a timeout sneaking in just before a synchronous write won't do + %% anything since the buffer is guaranteed to be empty at that point. + BufSize = prim_buffer:size(Buffer), + case is_iovec_smaller_than(IOVec, DelaySize - BufSize) of + true when BufSize > 0 -> + prim_buffer:write(Buffer, IOVec), + prim_buffer:unlock(Buffer); + true -> + prim_buffer:write(Buffer, IOVec), + prim_buffer:unlock(Buffer), + gen_statem:cast(Pid, '$reset_timeout'); + false when BufSize > 0 -> + prim_buffer:write(Buffer, IOVec), + prim_buffer:unlock(Buffer), + gen_statem:call(Pid, '$synchronous_flush'); + false -> + prim_buffer:unlock(Buffer), + gen_statem:call(Pid, [write, IOVec]) + end. + +%% iolist_size/1 will always look through the entire list to get a precise +%% amount, which is pretty inefficient since we only need to know whether we've +%% hit the buffer threshold or not. +%% +%% We only handle the binary case since write/2 forcibly translates input to +%% erlang:iovec(). +is_iovec_smaller_than(IOVec, Max) -> + is_iovec_smaller_than_1(IOVec, Max, 0). +is_iovec_smaller_than_1(_IOVec, Max, Acc) when Acc >= Max -> + false; +is_iovec_smaller_than_1([], _Max, _Acc) -> + true; +is_iovec_smaller_than_1([Binary | Rest], Max, Acc) when is_binary(Binary) -> + is_iovec_smaller_than_1(Rest, Max, Acc + byte_size(Binary)). + +close(Fd) -> + wrap_call(Fd, [close]). + +sync(Fd) -> + wrap_call(Fd, [sync]). +datasync(Fd) -> + wrap_call(Fd, [datasync]). + +truncate(Fd) -> + wrap_call(Fd, [truncate]). + +advise(Fd, Offset, Length, Advise) -> + wrap_call(Fd, [advise, Offset, Length, Advise]). +allocate(Fd, Offset, Length) -> + wrap_call(Fd, [allocate, Offset, Length]). + +position(Fd, Mark) -> + wrap_call(Fd, [position, Mark]). + +pwrite(Fd, Offset, IOData) -> + try + CompactedData = erlang:iolist_to_iovec(IOData), + wrap_call(Fd, [pwrite, Offset, CompactedData]) + catch + error:badarg -> {error, badarg} + end. +pwrite(Fd, LocBytes) -> + try + CompactedLocBytes = + [ {Offset, erlang:iolist_to_iovec(IOData)} || + {Offset, IOData} <- LocBytes ], + wrap_call(Fd, [pwrite, CompactedLocBytes]) + catch + error:badarg -> {error, badarg} + end. + +read_line(Fd) -> + wrap_call(Fd, [read_line]). +read(Fd, Size) -> + wrap_call(Fd, [read, Size]). +pread(Fd, Offset, Size) -> + wrap_call(Fd, [pread, Offset, Size]). +pread(Fd, LocNums) -> + wrap_call(Fd, [pread, LocNums]). + +ipread_s32bu_p32bu(Fd, Offset, MaxSize) -> + wrap_call(Fd, [ipread_s32bu_p32bu, Offset, MaxSize]). + +sendfile(_,_,_,_,_,_,_,_) -> + {error, enotsup}. + +wrap_call(Fd, Command) -> + #{ pid := Pid } = get_fd_data(Fd), + try gen_statem:call(Pid, Command, infinity) of + Result -> Result + catch + exit:{noproc, _StackTrace} -> {error, einval} + end. + +get_fd_data(#file_descriptor{ data = Data }) -> + #{ owner := Owner } = Data, + case self() of + Owner -> Data; + _ -> error(not_on_controlling_process) + end. diff --git a/lib/kernel/src/raw_file_io_inflate.erl b/lib/kernel/src/raw_file_io_inflate.erl new file mode 100644 index 0000000000..d3ed02dd03 --- /dev/null +++ b/lib/kernel/src/raw_file_io_inflate.erl @@ -0,0 +1,261 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(raw_file_io_inflate). + +-behavior(gen_statem). + +-export([init/1, callback_mode/0, terminate/3]). +-export([opening/3, opened_gzip/3, opened_passthrough/3]). + +-include("file_int.hrl"). + +-define(INFLATE_CHUNK_SIZE, (8 bsl 10)). +-define(GZIP_WBITS, (16 + 15)). + +callback_mode() -> state_functions. + +init({Owner, Secret, [compressed]}) -> + Monitor = monitor(process, Owner), + %% We're using the undocumented inflateInit/3 to open the stream in + %% 'reset mode', which resets the inflate state at the end of every stream, + %% allowing us to read concatenated gzip files. + Z = zlib:open(), + ok = zlib:inflateInit(Z, ?GZIP_WBITS, reset), + Data = + #{ owner => Owner, + monitor => Monitor, + secret => Secret, + position => 0, + buffer => prim_buffer:new(), + zlib => Z }, + {ok, opening, Data}. + +%% The old driver fell back to plain reads if the file didn't start with the +%% magic gzip bytes. +choose_decompression_state(PrivateFd) -> + State = + case ?CALL_FD(PrivateFd, read, [2]) of + {ok, <<16#1F, 16#8B>>} -> opened_gzip; + _Other -> opened_passthrough + end, + {ok, 0} = ?CALL_FD(PrivateFd, position, [0]), + State. + +opening({call, From}, {'$open', Secret, Filename, Modes}, #{ secret := Secret } = Data) -> + case raw_file_io:open(Filename, Modes) of + {ok, PrivateFd} -> + NextState = choose_decompression_state(PrivateFd), + NewData = Data#{ handle => PrivateFd }, + {next_state, NextState, NewData, [{reply, From, ok}]}; + Other -> + {stop_and_reply, normal, [{reply, From, Other}]} + end; +opening(_Event, _Contents, _Data) -> + {keep_state_and_data, [postpone]}. + +internal_close(From, Data) -> + #{ handle := PrivateFd } = Data, + Response = ?CALL_FD(PrivateFd, close, []), + {stop_and_reply, normal, [{reply, From, Response}]}. + +opened_passthrough(info, {'DOWN', Monitor, process, _Owner, _Reason}, #{ monitor := Monitor }) -> + {stop, shutdown}; + +opened_passthrough(info, _Message, _Data) -> + keep_state_and_data; + +opened_passthrough({call, {Owner, _Tag} = From}, [close], #{ owner := Owner } = Data) -> + internal_close(From, Data); + +opened_passthrough({call, {Owner, _Tag} = From}, [Method | Args], #{ owner := Owner } = Data) -> + #{ handle := PrivateFd } = Data, + Response = ?CALL_FD(PrivateFd, Method, Args), + {keep_state_and_data, [{reply, From, Response}]}; + +opened_passthrough({call, _From}, _Command, _Data) -> + %% The client functions filter this out, so we'll crash if the user does + %% anything stupid on purpose. + {shutdown, protocol_violation}; + +opened_passthrough(_Event, _Request, _Data) -> + keep_state_and_data. + +%% + +opened_gzip(info, {'DOWN', Monitor, process, _Owner, _Reason}, #{ monitor := Monitor }) -> + {stop, shutdown}; + +opened_gzip(info, _Message, _Data) -> + keep_state_and_data; + +opened_gzip({call, {Owner, _Tag} = From}, [close], #{ owner := Owner } = Data) -> + internal_close(From, Data); + +opened_gzip({call, {Owner, _Tag} = From}, [position, Mark], #{ owner := Owner } = Data) -> + case position(Data, Mark) of + {ok, NewData, Result} -> + Response = {ok, Result}, + {keep_state, NewData, [{reply, From, Response}]}; + Other -> + {keep_state_and_data, [{reply, From, Other}]} + end; + +opened_gzip({call, {Owner, _Tag} = From}, [read, Size], #{ owner := Owner } = Data) -> + case read(Data, Size) of + {ok, NewData, Result} -> + Response = {ok, Result}, + {keep_state, NewData, [{reply, From, Response}]}; + Other -> + {keep_state_and_data, [{reply, From, Other}]} + end; + +opened_gzip({call, {Owner, _Tag} = From}, [read_line], #{ owner := Owner } = Data) -> + case read_line(Data) of + {ok, NewData, Result} -> + Response = {ok, Result}, + {keep_state, NewData, [{reply, From, Response}]}; + Other -> + {keep_state_and_data, [{reply, From, Other}]} + end; + +opened_gzip({call, {Owner, _Tag} = From}, [write, _IOData], #{ owner := Owner }) -> + Response = {error, ebadf}, + {keep_state_and_data, [{reply, From, Response}]}; + +opened_gzip({call, {Owner, _Tag} = From}, _Request, #{ owner := Owner }) -> + Response = {error, enotsup}, + {keep_state_and_data, [{reply, From, Response}]}; + +opened_gzip({call, _From}, _Request, _Data) -> + %% The client functions filter this out, so we'll crash if the user does + %% anything stupid on purpose. + {shutdown, protocol_violation}; + +opened_gzip(_Event, _Request, _Data) -> + keep_state_and_data. + +%% + +read(#{ buffer := Buffer } = Data, Size) -> + try read_1(Data, Buffer, prim_buffer:size(Buffer), Size) of + Result -> Result + catch + error:badarg -> {error, badarg}; + error:_ -> {error, eio} + end. +read_1(Data, Buffer, BufferSize, ReadSize) when BufferSize >= ReadSize -> + #{ position := Position } = Data, + Decompressed = prim_buffer:read(Buffer, ReadSize), + {ok, Data#{ position => (Position + ReadSize) }, Decompressed}; +read_1(Data, Buffer, BufferSize, ReadSize) when BufferSize < ReadSize -> + #{ handle := PrivateFd } = Data, + case ?CALL_FD(PrivateFd, read, [?INFLATE_CHUNK_SIZE]) of + {ok, Compressed} -> + #{ zlib := Z } = Data, + Uncompressed = erlang:iolist_to_iovec(zlib:inflate(Z, Compressed)), + prim_buffer:write(Buffer, Uncompressed), + read_1(Data, Buffer, prim_buffer:size(Buffer), ReadSize); + eof when BufferSize > 0 -> + read_1(Data, Buffer, BufferSize, BufferSize); + Other -> + Other + end. + +read_line(#{ buffer := Buffer } = Data) -> + try read_line_1(Data, Buffer, prim_buffer:find_byte_index(Buffer, $\n)) of + {ok, NewData, Decompressed} -> {ok, NewData, Decompressed}; + Other -> Other + catch + error:badarg -> {error, badarg}; + error:_ -> {error, eio} + end. + +read_line_1(Data, Buffer, not_found) -> + #{ handle := PrivateFd, zlib := Z } = Data, + case ?CALL_FD(PrivateFd, read, [?INFLATE_CHUNK_SIZE]) of + {ok, Compressed} -> + Uncompressed = erlang:iolist_to_iovec(zlib:inflate(Z, Compressed)), + prim_buffer:write(Buffer, Uncompressed), + read_line_1(Data, Buffer, prim_buffer:find_byte_index(Buffer, $\n)); + eof -> + case prim_buffer:size(Buffer) of + Size when Size > 0 -> {ok, prim_buffer:read(Buffer, Size)}; + Size when Size =:= 0 -> eof + end; + Error -> + Error + end; +read_line_1(Data, Buffer, {ok, LFIndex}) -> + %% Translate CRLF into just LF, completely ignoring which encoding is used, + %% but treat the file position as including CR. + #{ position := Position } = Data, + NewData = Data#{ position => (Position + LFIndex + 1) }, + CRIndex = (LFIndex - 1), + TranslatedLine = + case prim_buffer:read(Buffer, LFIndex + 1) of + <<Line:CRIndex/binary, "\r\n">> -> <<Line/binary, "\n">>; + Line -> Line + end, + {ok, NewData, TranslatedLine}. + +%% +%% We support seeking in both directions as long as it isn't relative to EOF. +%% +%% Seeking backwards is extremely inefficient since we have to seek to the very +%% beginning and then decompress up to the desired point. +%% + +position(Data, Mark) when is_atom(Mark) -> + position(Data, {Mark, 0}); +position(Data, Offset) when is_integer(Offset) -> + position(Data, {bof, Offset}); +position(Data, {bof, Offset}) when is_integer(Offset) -> + position_1(Data, Offset); +position(Data, {cur, Offset}) when is_integer(Offset) -> + #{ position := Position } = Data, + position_1(Data, Position + Offset); +position(_Data, {eof, Offset}) when is_integer(Offset) -> + {error, einval}; +position(_Data, _Other) -> + {error, badarg}. + +position_1(_Data, Desired) when Desired < 0 -> + {error, einval}; +position_1(#{ position := Desired } = Data, Desired) -> + {ok, Data, Desired}; +position_1(#{ position := Current } = Data, Desired) when Current < Desired -> + case read(Data, min(Desired - Current, ?INFLATE_CHUNK_SIZE)) of + {ok, NewData, _Data} -> position_1(NewData, Desired); + eof -> {ok, Data, Current}; + Other -> Other + end; +position_1(#{ position := Current } = Data, Desired) when Current > Desired -> + #{ handle := PrivateFd, buffer := Buffer, zlib := Z } = Data, + case ?CALL_FD(PrivateFd, position, [bof]) of + {ok, 0} -> + ok = zlib:inflateReset(Z), + prim_buffer:wipe(Buffer), + position_1(Data#{ position => 0 }, Desired); + Other -> + Other + end. + +terminate(_Reason, _State, _Data) -> + ok. diff --git a/lib/kernel/src/raw_file_io_list.erl b/lib/kernel/src/raw_file_io_list.erl new file mode 100644 index 0000000000..2e16e63f0e --- /dev/null +++ b/lib/kernel/src/raw_file_io_list.erl @@ -0,0 +1,128 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(raw_file_io_list). + +-export([close/1, sync/1, datasync/1, truncate/1, advise/4, allocate/3, + position/2, write/2, pwrite/2, pwrite/3, + read_line/1, read/2, pread/2, pread/3]). + +%% OTP internal. +-export([ipread_s32bu_p32bu/3, sendfile/8]). + +-export([open_layer/3]). + +-include("file_int.hrl"). + +open_layer(Filename, Modes, [list]) -> + case raw_file_io:open(Filename, [binary | Modes]) of + {ok, PrivateFd} -> {ok, make_public_fd(PrivateFd, Modes)}; + Other -> Other + end. + +%% We can skip wrapping the file if it's write-only since only read operations +%% are affected by list mode. Since raw_file_io fills in all implicit options +%% for us, all we need to do is check whether 'read' is among them. +make_public_fd(PrivateFd, Modes) -> + case lists:member(read, Modes) of + true -> #file_descriptor{ module = ?MODULE, data = PrivateFd }; + false -> PrivateFd + end. + +close(Fd) -> + PrivateFd = Fd#file_descriptor.data, + ?CALL_FD(PrivateFd, close, []). + +sync(Fd) -> + PrivateFd = Fd#file_descriptor.data, + ?CALL_FD(PrivateFd, sync, []). +datasync(Fd) -> + PrivateFd = Fd#file_descriptor.data, + ?CALL_FD(PrivateFd, datasync, []). + +truncate(Fd) -> + PrivateFd = Fd#file_descriptor.data, + ?CALL_FD(PrivateFd, truncate, []). + +advise(Fd, Offset, Length, Advise) -> + PrivateFd = Fd#file_descriptor.data, + ?CALL_FD(PrivateFd, advise, [Offset, Length, Advise]). +allocate(Fd, Offset, Length) -> + PrivateFd = Fd#file_descriptor.data, + ?CALL_FD(PrivateFd, allocate, [Offset, Length]). + +position(Fd, Mark) -> + PrivateFd = Fd#file_descriptor.data, + ?CALL_FD(PrivateFd, position, [Mark]). + +write(Fd, IOData) -> + PrivateFd = Fd#file_descriptor.data, + ?CALL_FD(PrivateFd, write, [IOData]). + +pwrite(Fd, Offset, IOData) -> + PrivateFd = Fd#file_descriptor.data, + ?CALL_FD(PrivateFd, pwrite, [Offset, IOData]). +pwrite(Fd, LocBytes) -> + PrivateFd = Fd#file_descriptor.data, + ?CALL_FD(PrivateFd, pwrite, [LocBytes]). + +read_line(Fd) -> + PrivateFd = Fd#file_descriptor.data, + case ?CALL_FD(PrivateFd, read_line, []) of + {ok, Binary} -> {ok, binary_to_list(Binary)}; + Other -> Other + end. +read(Fd, Size) -> + PrivateFd = Fd#file_descriptor.data, + case ?CALL_FD(PrivateFd, read, [Size]) of + {ok, Binary} -> {ok, binary_to_list(Binary)}; + Other -> Other + end. +pread(Fd, Offset, Size) -> + PrivateFd = Fd#file_descriptor.data, + case ?CALL_FD(PrivateFd, pread, [Offset, Size]) of + {ok, Binary} -> {ok, binary_to_list(Binary)}; + Other -> Other + end. +pread(Fd, LocNums) -> + PrivateFd = Fd#file_descriptor.data, + case ?CALL_FD(PrivateFd, pread, [LocNums]) of + {ok, LocResults} -> + TranslatedResults = + [ case Result of + Result when is_binary(Result) -> binary_to_list(Result); + eof -> eof + end || Result <- LocResults ], + {ok, TranslatedResults}; + Other -> Other + end. + +ipread_s32bu_p32bu(Fd, Offset, MaxSize) -> + PrivateFd = Fd#file_descriptor.data, + case ?CALL_FD(PrivateFd, ipread_s32bu_p32bu, [Offset, MaxSize]) of + {ok, {Size, Pointer, Binary}} when is_binary(Binary) -> + {ok, {Size, Pointer, binary_to_list(Binary)}}; + Other -> + Other + end. + +sendfile(Fd, Dest, Offset, Bytes, ChunkSize, Headers, Trailers, Flags) -> + Args = [Dest, Offset, Bytes, ChunkSize, Headers, Trailers, Flags], + PrivateFd = Fd#file_descriptor.data, + ?CALL_FD(PrivateFd, sendfile, Args). diff --git a/lib/kernel/src/raw_file_io_raw.erl b/lib/kernel/src/raw_file_io_raw.erl new file mode 100644 index 0000000000..9a9fe78eb1 --- /dev/null +++ b/lib/kernel/src/raw_file_io_raw.erl @@ -0,0 +1,25 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017. All Rights Reserved. +%% +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. +%% +%% %CopyrightEnd% +%% +-module(raw_file_io_raw). + +-export([open_layer/3]). + +open_layer(Filename, Modes, [raw]) -> + prim_file:open(Filename, [raw | Modes]). diff --git a/lib/kernel/src/rpc.erl b/lib/kernel/src/rpc.erl index 0e0b7dffa3..d197de942f 100644 --- a/lib/kernel/src/rpc.erl +++ b/lib/kernel/src/rpc.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2017. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -418,10 +418,7 @@ abcast(Name, Mess) -> abcast([Node|Tail], Name, Mess) -> Dest = {Name,Node}, - case catch erlang:send(Dest, Mess, [noconnect]) of - noconnect -> spawn(erlang, send, [Dest,Mess]), ok; - _ -> ok - end, + try erlang:send(Dest, Mess) catch error:_ -> ok end, abcast(Tail, Name, Mess); abcast([], _,_) -> abcast. @@ -498,7 +495,7 @@ start_monitor(Node, Name) -> Module :: module(), Function :: atom(), Args :: [term()], - ResL :: [term()], + ResL :: [Res :: term() | {'badrpc', Reason :: term()}], BadNodes :: [node()]. multicall(M, F, A) -> @@ -509,14 +506,14 @@ multicall(M, F, A) -> Module :: module(), Function :: atom(), Args :: [term()], - ResL :: [term()], + ResL :: [Res :: term() | {'badrpc', Reason :: term()}], BadNodes :: [node()]; (Module, Function, Args, Timeout) -> {ResL, BadNodes} when Module :: module(), Function :: atom(), Args :: [term()], Timeout :: timeout(), - ResL :: [term()], + ResL :: [Res :: term() | {'badrpc', Reason :: term()}], BadNodes :: [node()]. multicall(Nodes, M, F, A) when is_list(Nodes) -> @@ -531,7 +528,7 @@ multicall(M, F, A, Timeout) -> Function :: atom(), Args :: [term()], Timeout :: timeout(), - ResL :: [term()], + ResL :: [Res :: term() | {'badrpc', Reason :: term()}], BadNodes :: [node()]. multicall(Nodes, M, F, A, infinity) diff --git a/lib/kernel/src/seq_trace.erl b/lib/kernel/src/seq_trace.erl index cc0c10909b..4f9d7b3e5c 100644 --- a/lib/kernel/src/seq_trace.erl +++ b/lib/kernel/src/seq_trace.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1998-2016. All Rights Reserved. +%% Copyright Ericsson AB 1998-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -41,7 +41,7 @@ -type flag() :: 'send' | 'receive' | 'print' | 'timestamp' | 'monotonic_timestamp' | 'strict_monotonic_timestamp'. -type component() :: 'label' | 'serial' | flag(). --type value() :: (Integer :: non_neg_integer()) +-type value() :: (Label :: term()) | {Previous :: non_neg_integer(), Current :: non_neg_integer()} | (Bool :: boolean()). @@ -59,10 +59,6 @@ set_token({Flags,Label,Serial,_From,Lastcnt}) -> F = decode_flags(Flags), set_token2([{label,Label},{serial,{Lastcnt, Serial}} | F]). -%% We limit the label type to always be a small integer because erl_interface -%% expects that, the BIF can however "unofficially" handle atoms as well, and -%% atoms can be used if only Erlang nodes are involved - -spec set_token(Component, Val) -> {Component, OldVal} when Component :: component(), Val :: value(), @@ -102,7 +98,7 @@ print(Label, Term) -> -spec reset_trace() -> 'true'. reset_trace() -> - erlang:system_flag(1, 0). + erlang:system_flag(reset_seq_trace, true). %% reset_trace(Pid) -> % this might be a useful function too diff --git a/lib/kernel/src/standard_error.erl b/lib/kernel/src/standard_error.erl index 5d649e5f94..ef5b532960 100644 --- a/lib/kernel/src/standard_error.erl +++ b/lib/kernel/src/standard_error.erl @@ -27,7 +27,8 @@ -define(PROCNAME_SUP, standard_error_sup). %% Defines for control ops --define(CTRL_OP_GET_WINSIZE,100). +-define(ERTS_TTYSL_DRV_CONTROL_MAGIC_NUMBER, 16#018b0900). +-define(CTRL_OP_GET_WINSIZE, (100 + ?ERTS_TTYSL_DRV_CONTROL_MAGIC_NUMBER)). %% %% The basic server and start-up. diff --git a/lib/kernel/src/user.erl b/lib/kernel/src/user.erl index 872e63ab53..0c9e1ea303 100644 --- a/lib/kernel/src/user.erl +++ b/lib/kernel/src/user.erl @@ -28,7 +28,8 @@ -define(NAME, user). %% Defines for control ops --define(CTRL_OP_GET_WINSIZE,100). +-define(ERTS_TTYSL_DRV_CONTROL_MAGIC_NUMBER, 16#018b0900). +-define(CTRL_OP_GET_WINSIZE, (100 + ?ERTS_TTYSL_DRV_CONTROL_MAGIC_NUMBER)). %% %% The basic server and start-up. diff --git a/lib/kernel/src/user_drv.erl b/lib/kernel/src/user_drv.erl index 99ea4210bd..08286dd476 100644 --- a/lib/kernel/src/user_drv.erl +++ b/lib/kernel/src/user_drv.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2016. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -32,9 +32,10 @@ -define(OP_BEEP,4). -define(OP_PUTC_SYNC,5). % Control op --define(CTRL_OP_GET_WINSIZE,100). --define(CTRL_OP_GET_UNICODE_STATE,101). --define(CTRL_OP_SET_UNICODE_STATE,102). +-define(ERTS_TTYSL_DRV_CONTROL_MAGIC_NUMBER, 16#018b0900). +-define(CTRL_OP_GET_WINSIZE, (100 + ?ERTS_TTYSL_DRV_CONTROL_MAGIC_NUMBER)). +-define(CTRL_OP_GET_UNICODE_STATE, (101 + ?ERTS_TTYSL_DRV_CONTROL_MAGIC_NUMBER)). +-define(CTRL_OP_SET_UNICODE_STATE, (102 + ?ERTS_TTYSL_DRV_CONTROL_MAGIC_NUMBER)). %% start() %% start(ArgumentList) |