diff options
Diffstat (limited to 'lib/kernel/src/logger_disk_log_h.erl')
| -rw-r--r-- | lib/kernel/src/logger_disk_log_h.erl | 81 |
1 files changed, 49 insertions, 32 deletions
diff --git a/lib/kernel/src/logger_disk_log_h.erl b/lib/kernel/src/logger_disk_log_h.erl index a8f141f135..2a81458ec8 100644 --- a/lib/kernel/src/logger_disk_log_h.erl +++ b/lib/kernel/src/logger_disk_log_h.erl @@ -33,7 +33,8 @@ terminate/2, code_change/3]). %% logger callbacks --export([log/2, adding_handler/1, removing_handler/1, changing_config/2]). +-export([log/2, adding_handler/1, removing_handler/1, changing_config/3, + filter_config/1]). %% handler internal -export([log_handler_info/4]). @@ -114,9 +115,8 @@ reset(Name) -> %%% Handler being added adding_handler(#{id:=Name}=Config) -> case check_config(adding, Config) of - {ok, Config1} -> + {ok, #{config:=HConfig}=Config1} -> %% create initial handler state by merging defaults with config - HConfig = maps:get(config, Config1, #{}), HState = maps:merge(get_init_state(), HConfig), case logger_h_common:overload_levels_ok(HState) of true -> @@ -133,32 +133,40 @@ adding_handler(#{id:=Name}=Config) -> %%%----------------------------------------------------------------- %%% Updating handler config -changing_config(OldConfig = #{id:=Name, config:=OldHConfig}, - NewConfig = #{id:=Name, config:=NewHConfig}) -> - #{type:=Type, file:=File, max_no_files:=MaxFs, - max_no_bytes:=MaxBytes} = OldHConfig, - case NewHConfig of - #{type:=Type, file:=File, max_no_files:=MaxFs, - max_no_bytes:=MaxBytes} -> - changing_config1(OldConfig, NewConfig); - _ -> - {error,{illegal_config_change,OldConfig,NewConfig}} - end; -changing_config(OldConfig, NewConfig) -> - {error,{illegal_config_change,OldConfig,NewConfig}}. +changing_config(SetOrUpdate,OldConfig=#{config:=OldHConfig},NewConfig) -> + WriteOnce = maps:with([type,file,max_no_files,max_no_bytes],OldHConfig), + ReadOnly = maps:with([handler_pid,mode_tab],OldHConfig), + NewHConfig0 = maps:get(config, NewConfig, #{}), + Default = + case SetOrUpdate of + set -> + %% Do not reset write-once fields to defaults + maps:merge(get_default_config(),WriteOnce); + update -> + OldHConfig + end, -changing_config1(OldConfig=#{config:=OldHConfig}, NewConfig) -> + %% Allow (accidentially) included read-only fields - just overwrite them + NewHConfig = maps:merge(maps:merge(Default,NewHConfig0),ReadOnly), + + %% But fail if write-once fields are changed + case maps:with([type,file,max_no_files,max_no_bytes],NewHConfig) of + WriteOnce -> + changing_config1(maps:get(handler_pid,OldHConfig), + OldConfig, + NewConfig#{config=>NewHConfig}); + Other -> + {Old,New} = logger_server:diff_maps(WriteOnce,Other), + {error,{illegal_config_change,#{config=>Old},#{config=>New}}} + end. + +changing_config1(HPid, OldConfig, NewConfig) -> case check_config(changing, NewConfig) of - {ok,NewConfig1 = #{config:=NewHConfig}} -> - #{handler_pid:=HPid, - mode_tab:=ModeTab} = OldHConfig, - NewHConfig1 = NewHConfig#{handler_pid=>HPid, - mode_tab=>ModeTab}, - NewConfig2 = NewConfig1#{config=>NewHConfig1}, - try gen_server:call(HPid, {change_config,OldConfig,NewConfig2}, + Result = {ok,NewConfig1} -> + try gen_server:call(HPid, {change_config,OldConfig,NewConfig1}, ?DEFAULT_CALL_TIMEOUT) of - ok -> {ok,NewConfig2}; - HError -> HError + ok -> Result; + Error -> Error catch _:{timeout,_} -> {error,handler_busy} end; @@ -168,10 +176,12 @@ changing_config1(OldConfig=#{config:=OldHConfig}, NewConfig) -> check_config(adding, #{id:=Name}=Config) -> %% merge handler specific config data - HConfig = merge_default_logopts(Name, maps:get(config, Config, #{})), - case check_h_config(maps:to_list(HConfig)) of + HConfig1 = maps:get(config, Config, #{}), + HConfig2 = maps:merge(get_default_config(), HConfig1), + HConfig3 = merge_default_logopts(Name, HConfig2), + case check_h_config(maps:to_list(HConfig3)) of ok -> - {ok,Config#{config=>HConfig}}; + {ok,Config#{config=>HConfig3}}; Error -> Error end; @@ -238,6 +248,11 @@ log(LogEvent, Config = #{id := Name, Bin = logger_h_common:log_to_binary(LogEvent, Config), logger_h_common:call_cast_or_drop(Name, HPid, ModeTab, Bin). +%%%----------------------------------------------------------------- +%%% Remove internal fields from configuration +filter_config(#{config:=HConfig}=Config) -> + Config#{config=>maps:without([handler_pid,mode_tab],HConfig)}. + %%%=================================================================== %%% gen_server callbacks %%%=================================================================== @@ -438,7 +453,7 @@ code_change(_OldVsn, State, _Extra) -> %%%----------------------------------------------------------------- %%% -get_init_state() -> +get_default_config() -> #{sync_mode_qlen => ?SYNC_MODE_QLEN, drop_mode_qlen => ?DROP_MODE_QLEN, flush_qlen => ?FLUSH_QLEN, @@ -449,10 +464,12 @@ get_init_state() -> overload_kill_qlen => ?OVERLOAD_KILL_QLEN, overload_kill_mem_size => ?OVERLOAD_KILL_MEM_SIZE, overload_kill_restart_after => ?OVERLOAD_KILL_RESTART_AFTER, - dl_sync_int => ?CONTROLLER_SYNC_INTERVAL, - filesync_ok_qlen => ?FILESYNC_OK_QLEN, filesync_repeat_interval => ?FILESYNC_REPEAT_INTERVAL}. +get_init_state() -> + #{dl_sync_int => ?CONTROLLER_SYNC_INTERVAL, + filesync_ok_qlen => ?FILESYNC_OK_QLEN}. + %%%----------------------------------------------------------------- %%% Add a disk_log handler to the logger. %%% This starts a dedicated handler process which should always |