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-rw-r--r--lib/kernel/doc/src/logger.xml23
-rw-r--r--lib/kernel/doc/src/logger_chapter.xml26
-rw-r--r--lib/kernel/src/error_logger.erl10
-rw-r--r--lib/kernel/src/logger.erl3
-rw-r--r--lib/kernel/src/logger_disk_log_h.erl25
-rw-r--r--lib/kernel/src/logger_server.erl13
-rw-r--r--lib/kernel/src/logger_simple.erl6
-rw-r--r--lib/kernel/src/logger_std_h.erl25
-rw-r--r--lib/kernel/test/logger_SUITE.erl12
9 files changed, 71 insertions, 72 deletions
diff --git a/lib/kernel/doc/src/logger.xml b/lib/kernel/doc/src/logger.xml
index 6e50473fa8..d6576db6f3 100644
--- a/lib/kernel/doc/src/logger.xml
+++ b/lib/kernel/doc/src/logger.xml
@@ -881,11 +881,9 @@ logger:set_process_metadata(maps:merge(logger:get_process_metadata(),Meta)).
<funcs>
<func>
- <name>HModule:adding_handler(HandlerId,Config1) -> {ok,Config2} | {error,Reason}</name>
+ <name>HModule:adding_handler(Config1) -> {ok,Config2} | {error,Reason}</name>
<fsummary>An instance of this handler is about to be added.</fsummary>
<type>
- <v>HandlerId =
- <seealso marker="#type-handler_id">handler_id()</seealso></v>
<v>Config1 = Config2 =
<seealso marker="#type-config">config()</seealso></v>
<v>Reason = term()</v>
@@ -895,6 +893,8 @@ logger:set_process_metadata(maps:merge(logger:get_process_metadata(),Meta)).
<p>The function is called when an new handler is about to be
added, and the purpose is to verify the configuration and
initiate all resources needed by the handler.</p>
+ <p>The handler identity is associated with the <c>id</c> key
+ in <c>Config1</c>.</p>
<p>If everything succeeds, the callback function can add
possible default values or internal state values to the
configuration, and return the adjusted map
@@ -905,11 +905,9 @@ logger:set_process_metadata(maps:merge(logger:get_process_metadata(),Meta)).
</func>
<func>
- <name>HModule:changing_config(HandlerId,Config1,Config2) -> {ok,Config3} | {error,Reason}</name>
+ <name>HModule:changing_config(Config1,Config2) -> {ok,Config3} | {error,Reason}</name>
<fsummary>The configuration for this handler is about to change.</fsummary>
<type>
- <v>HandlerId =
- <seealso marker="#type-handler_id">handler_id()</seealso></v>
<v>Config1 = Config2 = Config3 =
<seealso marker="#type-config">config()</seealso></v>
<v>Reason = term()</v>
@@ -921,6 +919,8 @@ logger:set_process_metadata(maps:merge(logger:get_process_metadata(),Meta)).
the new configuration.</p>
<p><c>Config1</c> is the existing configuration
and <c>Config2</c> is the new configuration.</p>
+ <p>The handler identity is associated with the <c>id</c> key
+ in <c>Config1</c>.</p>
<p>If everything succeeds, the callback function must return a
possibly adjusted configuration in <c>{ok,Config3}</c>.</p>
<p>If the configuration is faulty, the callback function must
@@ -942,6 +942,8 @@ logger:set_process_metadata(maps:merge(logger:get_process_metadata(),Meta)).
<p>The function is called when all global filters and all
handler filters for the handler in question have passed for
the given log event.</p>
+ <p>The handler identity is associated with the <c>id</c> key
+ in <c>Config</c>.</p>
<p>The handler must log the event.</p>
<p>The return value from this function is ignored by
Logger.</p>
@@ -949,11 +951,9 @@ logger:set_process_metadata(maps:merge(logger:get_process_metadata(),Meta)).
</func>
<func>
- <name>HModule:removing_handler(HandlerId,Config) -> ok</name>
+ <name>HModule:removing_handler(Config) -> ok</name>
<fsummary>The given handler is about to be removed.</fsummary>
<type>
- <v>HandlerId =
- <seealso marker="#type-handler_id">handler_id()</seealso></v>
<v>Config =
<seealso marker="#type-config">config()</seealso></v>
</type>
@@ -961,7 +961,10 @@ logger:set_process_metadata(maps:merge(logger:get_process_metadata(),Meta)).
<p>This callback function is optional.</p>
<p>The function is called when a handler is about to be
removed, and the purpose is to release all resources used by
- the handler. The return value is ignored by Logger.</p>
+ the handler.</p>
+ <p>The handler identity is associated with the <c>id</c> key
+ in <c>Config</c>.</p>
+ <p>The return value is ignored by Logger.</p>
</desc>
</func>
diff --git a/lib/kernel/doc/src/logger_chapter.xml b/lib/kernel/doc/src/logger_chapter.xml
index 1195808160..78c595d521 100644
--- a/lib/kernel/doc/src/logger_chapter.xml
+++ b/lib/kernel/doc/src/logger_chapter.xml
@@ -268,7 +268,7 @@
<p>In addition to the mandatory callback function <c>log/2</c>, a
handler module can export the optional callback
- functions <c>adding_handler/2</c>, <c>changing_config/3</c>
+ functions <c>adding_handler/1</c>, <c>changing_config/2</c>
and <c>removing_handler/1</c>. See
section <seealso marker="logger#handler_callback_functions">Handler
Callback Functions</seealso> in the logger(3) manual for more
@@ -738,22 +738,22 @@ ok</pre>
<code>log(logger:log(),logger:config()) ->ok</code>
<p>It may also implement the following callbacks:</p>
<code>
-adding_handler(logger:handler_id(),logger:config()) -> {ok,logger:config()} | {error,term()}
-removing_handler(logger:handler_id(),logger:config()) -> ok
-changing_config(logger:handler_id(),logger:config(),logger:config()) -> {ok,logger:config()} | {error,term()}
+adding_handler(logger:config()) -> {ok,logger:config()} | {error,term()}
+removing_handler(logger:config()) -> ok
+changing_config(logger:config(),logger:config()) -> {ok,logger:config()} | {error,term()}
</code>
<p>When <c>logger:add_handler(Id,Module,Config)</c> is called, Logger
- will first call <c>HModule:adding_handler(Id,Config)</c>, and if it
+ will first call <c>HModule:adding_handler(Config)</c>, and if it
returns <c>{ok,NewConfig}</c>, <c>NewConfig</c> is written to the
configuration database. After this, the handler may receive log
events as calls to <c>HModule:log/2</c>.</p>
<p>A handler can be removed by calling
<c>logger:remove_handler(Id)</c>. Logger will call
- <c>HModule:removing_handler(Id,Config)</c>, and then remove the
+ <c>HModule:removing_handler(Config)</c>, and then remove the
handler's configuration from the configuration database.</p>
<p>When <c>logger:set_handler_config/2,3</c>
or <c>logger:update_handler_config/2</c> are called, Logger
- calls <c>HModule:changing_config(Id,OldConfig,NewConfig)</c>. If
+ calls <c>HModule:changing_config(OldConfig,NewConfig)</c>. If
this function returns <c>{ok,NewConfig}</c>, <c>NewConfig</c> is
written to the configuration database.</p>
@@ -771,14 +771,14 @@ log(Log,#{formatter:={FModule,FConfig}) ->
this:</p>
<code>
-module(myhandler).
--export([adding_handler/2, removing_handler/2, log/2]).
+-export([adding_handler/1, removing_handler/1, log/2]).
-export([init/1, handle_call/3, handle_cast/2, terminate/2]).
-adding_handler(Id,Config) ->
+adding_handler(Config) ->
{ok,Fd} = file:open(File,[append,{encoding,utf8}]),
{ok,Config#{myhandler_fd=>Fd}}.
-removing_handler(Id,#{myhandler_fd:=Fd}) ->
+removing_handler(#{myhandler_fd:=Fd}) ->
_ = file:close(Fd),
ok.
@@ -800,14 +800,14 @@ log(Log,#{myhandler_fd:=Fd,formatter:={FModule,FConfig}}) ->
single process.</p>
<code>
-module(myhandler).
--export([adding_handler/2, removing_handler/2, log/2]).
+-export([adding_handler/1, removing_handler/1, log/2]).
-export([init/1, handle_call/3, handle_cast/2, terminate/2]).
-adding_handler(Id,Config) ->
+adding_handler(Config) ->
{ok,Pid} = gen_server:start(?MODULE,Config),
{ok,Config#{myhandler_pid=>Pid}}.
-removing_handler(Id,#{myhandler_pid:=Pid}) ->
+removing_handler(#{myhandler_pid:=Pid}) ->
gen_server:stop(Pid).
log(Log,#{myhandler_pid:=Pid} = Config) ->
diff --git a/lib/kernel/src/error_logger.erl b/lib/kernel/src/error_logger.erl
index 6c3b308308..96f6536e61 100644
--- a/lib/kernel/src/error_logger.erl
+++ b/lib/kernel/src/error_logger.erl
@@ -32,7 +32,7 @@
which_report_handlers/0]).
%% logger callbacks
--export([adding_handler/2, removing_handler/2, log/2]).
+-export([adding_handler/1, removing_handler/1, log/2]).
-export([get_format_depth/0, limit_term/1]).
@@ -101,9 +101,9 @@ stop() ->
%%%-----------------------------------------------------------------
%%% Callbacks for logger
--spec adding_handler(logger:handler_id(),logger:config()) ->
+-spec adding_handler(logger:config()) ->
{ok,logger:config()} | {error,term()}.
-adding_handler(?MODULE,Config) ->
+adding_handler(#{id:=?MODULE}=Config) ->
case start() of
ok ->
{ok,Config};
@@ -111,8 +111,8 @@ adding_handler(?MODULE,Config) ->
Error
end.
--spec removing_handler(logger:handler_id(),logger:config()) -> ok.
-removing_handler(?MODULE,_Config) ->
+-spec removing_handler(logger:config()) -> ok.
+removing_handler(#{id:=?MODULE}) ->
stop(),
ok.
diff --git a/lib/kernel/src/logger.erl b/lib/kernel/src/logger.erl
index 9c721d7fee..f22fd5e8de 100644
--- a/lib/kernel/src/logger.erl
+++ b/lib/kernel/src/logger.erl
@@ -90,7 +90,8 @@
-type filter() :: {fun((log(),filter_arg()) -> filter_return()),filter_arg()}.
-type filter_arg() :: term().
-type filter_return() :: stop | ignore | log().
--type config() :: #{level => level(),
+-type config() :: #{id => handler_id(),
+ level => level(),
filter_default => log | stop,
filters => [{filter_id(),filter()}],
formatter => {module(),formatter_config()},
diff --git a/lib/kernel/src/logger_disk_log_h.erl b/lib/kernel/src/logger_disk_log_h.erl
index 57c54ce27e..37a147e3dc 100644
--- a/lib/kernel/src/logger_disk_log_h.erl
+++ b/lib/kernel/src/logger_disk_log_h.erl
@@ -34,8 +34,8 @@
%% logger callbacks
-export([log/2,
- adding_handler/2, removing_handler/2,
- changing_config/3, swap_buffer/2]).
+ adding_handler/1, removing_handler/1,
+ changing_config/2, swap_buffer/2]).
%%%===================================================================
%%% API
@@ -108,8 +108,8 @@ reset(Name) ->
%%%-----------------------------------------------------------------
%%% Handler being added
-adding_handler(Name, Config) ->
- case check_config(adding, Name, Config) of
+adding_handler(#{id:=Name}=Config) ->
+ case check_config(adding, Config) of
{ok, Config1} ->
%% create initial handler state by merging defaults with config
HConfig = maps:get(?MODULE, Config1, #{}),
@@ -136,10 +136,9 @@ adding_handler(Name, Config) ->
%%%-----------------------------------------------------------------
%%% Updating handler config
-changing_config(Name,
- OldConfig=#{id:=Id, disk_log_opts:=DLOpts},
- NewConfig=#{id:=Id, disk_log_opts:=DLOpts}) ->
- case check_config(changing, Name, NewConfig) of
+changing_config(OldConfig=#{id:=Name, disk_log_opts:=DLOpts},
+ NewConfig=#{id:=Name, disk_log_opts:=DLOpts}) ->
+ case check_config(changing, NewConfig) of
Result = {ok,NewConfig1} ->
try gen_server:call(Name, {change_config,OldConfig,NewConfig1},
?DEFAULT_CALL_TIMEOUT) of
@@ -151,12 +150,10 @@ changing_config(Name,
Error ->
Error
end;
-changing_config(_Name, OldConfig, NewConfig) ->
+changing_config(OldConfig, NewConfig) ->
{error,{illegal_config_change,OldConfig,NewConfig}}.
-check_config(adding, Name, Config0) ->
- %% Merge in defaults on top level
- Config = maps:merge(#{id => Name}, Config0),
+check_config(adding, #{id:=Name}=Config) ->
%% Merge in defaults on handler level
LogOpts0 = maps:get(disk_log_opts, Config, #{}),
LogOpts = merge_default_logopts(Name, LogOpts0),
@@ -173,7 +170,7 @@ check_config(adding, Name, Config0) ->
Error ->
Error
end;
-check_config(changing, _Name, Config) ->
+check_config(changing, Config) ->
MyConfig = maps:get(?MODULE, Config, #{}),
case check_my_config(maps:to_list(MyConfig)) of
ok -> {ok,Config};
@@ -223,7 +220,7 @@ check_my_config([]) ->
%%%-----------------------------------------------------------------
%%% Handler being removed
-removing_handler(Name, _Config) ->
+removing_handler(#{id:=Name}) ->
stop(Name).
%%%-----------------------------------------------------------------
diff --git a/lib/kernel/src/logger_server.erl b/lib/kernel/src/logger_server.erl
index 16f61abdd6..9182b0b486 100644
--- a/lib/kernel/src/logger_server.erl
+++ b/lib/kernel/src/logger_server.erl
@@ -134,7 +134,7 @@ init([]) ->
filters=>?DEFAULT_HANDLER_FILTERS}),
%% If this fails, then the node should crash
{ok,SimpleConfig} =
- logger_simple:adding_handler(logger_simple,SimpleConfig0),
+ logger_simple:adding_handler(SimpleConfig0),
logger_config:create(Tid,logger_simple,logger_simple,SimpleConfig),
{ok, #state{tid=Tid, async_req_queue = queue:new()}}.
@@ -146,7 +146,7 @@ handle_call({add_handler,Id,Module,HConfig}, From, #state{tid=Tid}=State) ->
call_h_async(
fun() ->
%% inform the handler
- call_h(Module,adding_handler,[Id,HConfig],{ok,HConfig})
+ call_h(Module,adding_handler,[HConfig],{ok,HConfig})
end,
fun({ok,HConfig1}) ->
%% We know that the call_h would have loaded the module
@@ -177,7 +177,7 @@ handle_call({remove_handler,HandlerId}, From, #state{tid=Tid}=State) ->
call_h_async(
fun() ->
%% inform the handler
- call_h(Module,removing_handler,[HandlerId,HConfig],ok)
+ call_h(Module,removing_handler,[HConfig],ok)
end,
fun(_Res) ->
do_set_config(Tid,logger,Config#{handlers=>Handlers}),
@@ -213,7 +213,7 @@ handle_call({set_config,HandlerId,Config}, From, #state{tid=Tid}=State) ->
{ok,{Module,OldConfig}} ->
call_h_async(
fun() ->
- call_h(Module,changing_config,[HandlerId,OldConfig,Config],
+ call_h(Module,changing_config,[OldConfig,Config],
{ok,Config})
end,
fun({ok,Config1}) ->
@@ -348,8 +348,9 @@ default_config(logger) ->
#{level=>info,
filters=>[],
filter_default=>log};
-default_config(_) ->
- #{level=>info,
+default_config(Id) ->
+ #{id=>Id,
+ level=>info,
filters=>[],
filter_default=>log,
formatter=>{?DEFAULT_FORMATTER,#{}}}.
diff --git a/lib/kernel/src/logger_simple.erl b/lib/kernel/src/logger_simple.erl
index c8cdf25887..cfb3fcb620 100644
--- a/lib/kernel/src/logger_simple.erl
+++ b/lib/kernel/src/logger_simple.erl
@@ -19,7 +19,7 @@
%%
-module(logger_simple).
--export([adding_handler/2, removing_handler/2, log/2]).
+-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.
@@ -27,7 +27,7 @@
%%%-----------------------------------------------------------------
%%% Logger callback
-adding_handler(?MODULE,Config) ->
+adding_handler(#{id:=?MODULE}=Config) ->
Me = self(),
case whereis(?MODULE) of
undefined ->
@@ -44,7 +44,7 @@ adding_handler(?MODULE,Config) ->
{error,{handler_process_name_already_exists,?MODULE}}
end.
-removing_handler(?MODULE,_Config) ->
+removing_handler(#{id:=?MODULE}) ->
case whereis(?MODULE) of
undefined ->
ok;
diff --git a/lib/kernel/src/logger_std_h.erl b/lib/kernel/src/logger_std_h.erl
index e5e0febc88..fc8ca1535b 100644
--- a/lib/kernel/src/logger_std_h.erl
+++ b/lib/kernel/src/logger_std_h.erl
@@ -35,8 +35,8 @@
terminate/2, code_change/3]).
%% logger callbacks
--export([log/2, adding_handler/2, removing_handler/2,
- changing_config/3, swap_buffer/2]).
+-export([log/2, adding_handler/1, removing_handler/1,
+ changing_config/2, swap_buffer/2]).
%%%===================================================================
%%% API
@@ -109,8 +109,8 @@ reset(Name) ->
%%%-----------------------------------------------------------------
%%% Handler being added
-adding_handler(Name, Config) ->
- case check_config(adding, Name, Config) of
+adding_handler(#{id:=Name}=Config) ->
+ case check_config(adding, Config) of
{ok, Config1} ->
%% create initial handler state by merging defaults with config
HConfig = maps:get(?MODULE, Config1, #{}),
@@ -137,9 +137,8 @@ adding_handler(Name, Config) ->
%%%-----------------------------------------------------------------
%%% Updating handler config
-changing_config(Name,
- OldConfig=#{id:=Id, ?MODULE:=#{type:=Type}},
- NewConfig=#{id:=Id}) ->
+changing_config(OldConfig=#{id:=Name, ?MODULE:=#{type:=Type}},
+ NewConfig=#{id:=Name}) ->
MyConfig = maps:get(?MODULE, NewConfig, #{}),
case maps:get(type, MyConfig, Type) of
Type ->
@@ -149,11 +148,11 @@ changing_config(Name,
_ ->
{error,{illegal_config_change,OldConfig,NewConfig}}
end;
-changing_config(_Name, OldConfig, NewConfig) ->
+changing_config(OldConfig, NewConfig) ->
{error,{illegal_config_change,OldConfig,NewConfig}}.
changing_config1(Name, OldConfig, NewConfig) ->
- case check_config(changing, Name, NewConfig) of
+ case check_config(changing, NewConfig) of
Result = {ok,NewConfig1} ->
try gen_server:call(Name, {change_config,OldConfig,NewConfig1},
?DEFAULT_CALL_TIMEOUT) of
@@ -166,9 +165,7 @@ changing_config1(Name, OldConfig, NewConfig) ->
Error
end.
-check_config(adding, Name, Config0) ->
- %% Merge in defaults on top level
- Config = maps:merge(#{id => Name}, Config0),
+check_config(adding, Config) ->
%% Merge in defaults on handler level
MyConfig0 = maps:get(?MODULE, Config, #{}),
MyConfig = maps:merge(#{type => standard_io},
@@ -179,7 +176,7 @@ check_config(adding, Name, Config0) ->
Error ->
Error
end;
-check_config(changing, _Name, Config) ->
+check_config(changing, Config) ->
MyConfig = maps:get(?MODULE, Config, #{}),
case check_my_config(maps:to_list(MyConfig)) of
ok -> {ok,Config};
@@ -207,7 +204,7 @@ check_my_config([]) ->
%%%-----------------------------------------------------------------
%%% Handler being removed
-removing_handler(Name,_Config) ->
+removing_handler(#{id:=Name}) ->
stop(Name).
%%%-----------------------------------------------------------------
diff --git a/lib/kernel/test/logger_SUITE.erl b/lib/kernel/test/logger_SUITE.erl
index 66eee8219a..f7ec59a7b7 100644
--- a/lib/kernel/test/logger_SUITE.erl
+++ b/lib/kernel/test/logger_SUITE.erl
@@ -839,20 +839,20 @@ check_maps(Expected,Got,What) ->
end.
%% Handler
-adding_handler(_Id,#{add_call:=Fun}) ->
+adding_handler(#{add_call:=Fun}) ->
Fun();
-adding_handler(_Id,Config) ->
+adding_handler(Config) ->
maybe_send(add),
{ok,Config}.
-removing_handler(_Id,#{rem_call:=Fun}) ->
+removing_handler(#{rem_call:=Fun}) ->
Fun();
-removing_handler(_Id,_Config) ->
+removing_handler(_Config) ->
maybe_send(remove),
ok.
-changing_config(_Id,_Old,#{conf_call:=Fun}) ->
+changing_config(_Old,#{conf_call:=Fun}) ->
Fun();
-changing_config(_Id,_Old,Config) ->
+changing_config(_Old,Config) ->
maybe_send(changing_config),
{ok,Config}.
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 00:00:44 +0000