prosody
9970d333a63f
util/gc.lua

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util/gc.lua @ 13532:9970d333a63f

mod_pubsub: Use error registry This is what util.error was made for! This replaces the custom error stanza builder with common code in util.stanza that knows enough about util.error and namespaced errors. Some awkwardness remains in the way util.pubsub returns conflicting form fields.
author Kim Alvefur <zash@zash.se>
date Sun, 27 Oct 2024 15:18:24 +0100
parent 12975:d10957394a3c
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d10957394a3c util: Prefix module imports with prosody namespace
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1 local set = require "prosody.util.set";
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2
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3 local known_options = {
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4 incremental = set.new { "mode", "threshold", "speed", "step_size" };
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5 generational = set.new { "mode", "minor_threshold", "major_threshold" };
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6 };
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7
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8 if _VERSION ~= "Lua 5.4" then
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9 known_options.generational = nil;
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10 known_options.incremental:remove("step_size");
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11 end
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12
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13 local function configure(user, defaults)
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14 local mode = user.mode or defaults.mode or "incremental";
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15 if not known_options[mode] then
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16 return nil, "GC mode not supported on ".._VERSION..": "..mode;
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17 end
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18
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19 for k, v in pairs(user) do
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20 if not known_options[mode]:contains(k) then
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21 return nil, "Unknown GC parameter: "..k;
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22 elseif k ~= "mode" and type(v) ~= "number" then
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23 return nil, "parameter '"..k.."' should be a number";
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24 end
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25 end
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26
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27 if mode == "incremental" then
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28 if _VERSION == "Lua 5.4" then
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29 collectgarbage(mode,
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30 user.threshold or defaults.threshold,
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31 user.speed or defaults.speed,
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32 user.step_size or defaults.step_size
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33 );
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34 else
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35 collectgarbage("setpause", user.threshold or defaults.threshold);
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36 collectgarbage("setstepmul", user.speed or defaults.speed);
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37 end
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38 elseif mode == "generational" then
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39 collectgarbage(mode,
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40 user.minor_threshold or defaults.minor_threshold,
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41 user.major_threshold or defaults.major_threshold
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42 );
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43 end
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44 return true;
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45 end
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46
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47 return {
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48 configure = configure;
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49 };