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util/gc.lua @ 11726:76156c675456
mod_pubsub: Update configuration on reload (fixes #1382)
Because of the way the previous pubsub service is carried access module
reloads, it would retain the configuration options with their previous
values from when the service was first created.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 25 Jul 2021 18:58:25 +0200 |
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; };