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util/gc.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 | 11431:4874b54af344 |
child | 12975:d10957394a3c |
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local set = require "util.set"; local known_options = { incremental = set.new { "mode", "threshold", "speed", "step_size" }; generational = set.new { "mode", "minor_threshold", "major_threshold" }; }; if _VERSION ~= "Lua 5.4" then known_options.generational = nil; known_options.incremental:remove("step_size"); end local function configure(user, defaults) local mode = user.mode or defaults.mode or "incremental"; if not known_options[mode] then return nil, "GC mode not supported on ".._VERSION..": "..mode; end for k, v in pairs(user) do if not known_options[mode]:contains(k) then return nil, "Unknown GC parameter: "..k; elseif k ~= "mode" and type(v) ~= "number" then return nil, "parameter '"..k.."' should be a number"; end end if mode == "incremental" then if _VERSION == "Lua 5.4" then collectgarbage(mode, user.threshold or defaults.threshold, user.speed or defaults.speed, user.step_size or defaults.step_size ); else collectgarbage("setpause", user.threshold or defaults.threshold); collectgarbage("setstepmul", user.speed or defaults.speed); end elseif mode == "generational" then collectgarbage(mode, user.minor_threshold or defaults.minor_threshold, user.major_threshold or defaults.major_threshold ); end return true; end return { configure = configure; };