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