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151 líneas
5.6 KiB
151 líneas
5.6 KiB
-include("rumCom.hrl").
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%% 应用名字
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-define(RumAppName, eRum).
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%% 三元表达式
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-define(IIF(Cond, Ret1, Ret2), (case Cond of true -> Ret1; _ -> Ret2 end)).
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%% 错误日志宏定义
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-define(ERR(Format), error_logger:error_msg(Format)).
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-define(ERR(Format, Args), error_logger:error_msg(Format, Args)).
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-define(Print(Args), io:format("IMY************~p~n", [Args])).
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%% 额外进程字典key
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-define(PdMdKey, pdRumMd).
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-define(RumTrackSink, '__trace_sink').
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%% 旋转日志超时时间
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-define(RumRotateTimeout, 100000).
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%% 部分默认配置值
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-define(RumDefTracer, lager_default_tracer).
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-define(RumErrLogSink, error_logger_lager_event).
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%% rumBkdConsole的选项
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-type rumConsoleOpt() ::
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{id, atom() | {atom(), atom()}} |
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{use_stderr, boolean()} |
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{group_leader, false | pid() | atom()} |
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{formatter, atom()} |
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{formatter_config, list()}.
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%% rumBkdFile的选项
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-type rumFileOpt() ::
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{file, binary()} |
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{level, rumAtomLevel() | atom()} |
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{size, non_neg_integer()} |
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{date, string()} |
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{count, non_neg_integer()} |
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{rotator, atom()} |
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{high_water_mark, non_neg_integer()} |
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%% 对于特定的接收器事件队列刷新，请使用改选项
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{flush_queue, boolean()} |
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%% 对于接收器 如果flush_queue为true，则可以设置消息队列长度阈值，在该阈值处将开始丢弃消息。默认阈值为0，
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%% 这意味着如果flush_queue为true，则超过高水位标记时将丢弃消息，而不管消息队列的长度如何。：
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{flush_threshold, non_neg_integer()} |
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{sync_interval, non_neg_integer()} |
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{sync_size, non_neg_integer()} |
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{sync_on, rumAtomLevel()} |
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{check_interval, non_neg_integer()} |
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{formatter, atom()} |
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{formatter_config, term()}.
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%% BkdFile选项默认值
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-define(RumDefLogLevel, info).
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-define(RumDefRotateSize, 10485760). %% 10mb
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-define(RumDefRotateDate, "$D0"). %% midnight
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-define(RumDefRotateCnt, 5).
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-define(RumDefRotateMod, rumRotatorIns).
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-define(RumDefSyncLevel, error).
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-define(RumDefSyncInterval, 1000).
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-define(RumDefSyncSize, 1024 * 64). %% 64kb
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-define(RumDefCheckInterval, 1000).
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-define(RumDefCheckHWM, 1000). %% IMY-todo修正该默认值
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-define(RumDefFlushQueue, true).
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-define(RumDefFlushThreshold, 0). %% IMY-todo修正该默认值
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-define(RumDefFormatter, rumFormatter).
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-define(RumDefFormatterCfg, []).
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%% 默认日志文件选项
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-define(RumDefHandler,
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[
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{rumBkdConsole, [{level, info}]},
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{rumBkdFile, [{file, <<"./log/error.log">>}, {level, '>=error'}, {size, 10485760}, {date, "$D0"}, {count, 5}]},
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{rumBkdFile, [{file, <<"./log/console.log">>}, {level, '>=debug'}, {size, 10485760}, {date, "$D0"}, {count, 5}]}
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]).
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-record(rumShaper, {
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id :: any()
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%% 每秒我们尝试传递多少消息
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, hwm = undefined :: 'undefined' | pos_integer()
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%% 这秒内我们收到了多少条消息
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, mps = 0 :: non_neg_integer()
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%% 当前秒
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, lastTime = rumTime:now() :: erlang:timestamp()
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%% 此秒内丢弃的消息数
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, dropped = 0 :: non_neg_integer()
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%% If true, flush notify messages from msg queue at overload
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%% 如果为true，则在过载时刷新来自消息队列的通知消息
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, flushQueue = true :: boolean()
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, flushThreshold = 0 :: integer()
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%% timer
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, timer = make_ref() :: reference()
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%% optional filter fun to avoid counting suppressed messages against HWM totals
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%% 可选的过滤器函数，以避免对HWM总数计算抑制消息
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, filter = fun(_) -> false end :: fun()
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}).
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-type rumShaper() :: #rumShaper{}.
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-type rumAtomLevel() :: none | debug | info | notice | warning | error | critical | alert | emergency.
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-type rumMaskLevel() :: 0..256.
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%% 日志等级列表
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-define(RumLevels, [debug, info, notice, warning, error, critical, alert, emergency, none]).
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%% 使用这些“功能”意味着，出于安全考虑，参数列表不会被截断
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-define(RumLevelsUnsafe, [{debug_unsafe, debug}, {info_unsafe, info}, {notice_unsafe, notice}, {warning_unsafe, warning}, {error_unsafe, error}, {critical_unsafe, critical}, {alert_unsafe, alert}, {emergency_unsafe, emergency}]).
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-define(RunShouldLog(Sink, Level), (rumUtil:levelToNum(Level) band element(1, rumConfig:get({Sink, loglevel}, {?none, []}))) /= 0).
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-define(RunShouldLog(Level), (rumUtil:levelToNum(Level) band element(1, rumConfig:get(loglevel, {?none, []}))) /= 0).
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-define(RunNotify(Level, Pid, Format, Args),
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gen_emm:info_notify(rumEvent, {mWriteLog, rumMsg:new(io_lib:format(Format, Args), Level, [{pid, Pid}, {line, ?LINE}, {file, ?FILE}, {module, ?MODULE}], [])})).
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%%仅供内部使用仅内部非阻塞日志记录调用，当我们仍在启动大型啤酒时尝试进行日志记录（通常为错误）时，会有一些特殊处理。
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-ifdef(TEST).
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-define(INT_LOG(Level, Format, Args),
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case ?RunShouldLog(Level) of
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true ->
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?RunNotify(Level, self(), Format, Args);
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_ ->
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ok
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end).
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-else.
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-define(INT_LOG(Level, Format, Args),
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Self = self(),
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%%在生成中执行此操作，这样就不会导致从gen_event处理程序调用gen_event：which_handlers的死锁
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spawn(fun() ->
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case catch (gen_event:which_handlers(rumEvent)) of
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X when X == []; X == {'EXIT', noproc}; X == [rumBkdThrottle] ->
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%% there's no handlers yet or lager isn't running, try again
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%% in half a second.
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timer:sleep(500),
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?RunNotify(Level, Self, Format, Args);
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_ ->
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case ?RunShouldLog(Level) of
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true ->
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?RunNotify(Level, Self, Format, Args);
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_ ->
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ok
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end
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end
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end)).
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-endif.
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