prosody
4533c9b906b0
util/gc.lua

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util/gc.lua @ 12983:4533c9b906b0

util.format: Tweak serialization of %q formatted entries Improves serialization of function references especially, the built-in default handling of that in util.serialization is not the most informative. Now, along with the function metatable from util.startup, the actual function can be found by filename and line number.
author Kim Alvefur <zash@zash.se>
date Sun, 26 Mar 2023 00:18:05 +0100
parent 12975:d10957394a3c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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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4874b54af344 util.gc: Fix check for Lua 5.4
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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 };