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util/logger.lua @ 12179:5e68635cdc2c
mod_http_file_share: Always measure total disk usage for statistics!
Metrics available or not depending on configuration is weird, even tho
it might be expensive to calculate and it's only really needed when
there is a global quota.
Default quota is set to infinity, which is essentially what it was.
Reports NaN if there is an error, which should count as over the
infinite default quota.
author | Kim Alvefur <zash@zash.se> |
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date | Tue, 11 Jan 2022 04:15:29 +0100 |
parent | 8556:5800f0c7afd6 |
child | 12394:86d6b069b892 |
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-- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- -- luacheck: ignore 213/level local pairs = pairs; local ipairs = ipairs; local require = require; local _ENV = nil; -- luacheck: std none local level_sinks = {}; local make_logger; local function init(name) local log_debug = make_logger(name, "debug"); local log_info = make_logger(name, "info"); local log_warn = make_logger(name, "warn"); local log_error = make_logger(name, "error"); return function (level, message, ...) if level == "debug" then return log_debug(message, ...); elseif level == "info" then return log_info(message, ...); elseif level == "warn" then return log_warn(message, ...); elseif level == "error" then return log_error(message, ...); end end end function make_logger(source_name, level) local level_handlers = level_sinks[level]; if not level_handlers then level_handlers = {}; level_sinks[level] = level_handlers; end local logger = function (message, ...) for i = 1,#level_handlers do level_handlers[i](source_name, level, message, ...); end end return logger; end local function reset() for level, handler_list in pairs(level_sinks) do -- Clear all handlers for this level for i = 1, #handler_list do handler_list[i] = nil; end end end local function add_level_sink(level, sink_function) if not level_sinks[level] then level_sinks[level] = { sink_function }; else level_sinks[level][#level_sinks[level] + 1 ] = sink_function; end end local function add_simple_sink(simple_sink_function, levels) local format = require "util.format".format; local function sink_function(name, level, msg, ...) return simple_sink_function(name, level, format(msg, ...)); end for _, level in ipairs(levels or {"debug", "info", "warn", "error"}) do add_level_sink(level, sink_function); end end return { init = init; make_logger = make_logger; reset = reset; add_level_sink = add_level_sink; add_simple_sink = add_simple_sink; new = make_logger; };