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util/gc.lua @ 13461:c673ff1075bd

mod_posix: Move everything to util.startup This allows greater control over the order of events. Notably, the internal ordering between daemonization, initialization of libunbound and setup of signal handling is sensitive. libunbound starts a separate thread for processing DNS requests. If this thread is started before signal handling has been set up, it will not inherit the signal handlers and instead behave as it would have before signal handlers were set up, i.e. cause the whole process to immediately exit. libunbound is usually initialized on the first DNS request, usually triggered by an outgoing s2s connection attempt. If daemonization happens before signals have been set up, signals may not be processed at all.

author	Kim Alvefur <zash@zash.se>
date	Sat, 23 Mar 2024 20:48:19 +0100
parent	12975:d10957394a3c

rev	line source
12975 d10957394a3c util: Prefix module imports with prosody namespace Kim Alvefur <zash@zash.se> parents: 11431 diff changeset	1 local set = require "prosody.util.set";
10933 f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	2
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	3 local known_options = {
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	4 incremental = set.new { "mode", "threshold", "speed", "step_size" };
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	5 generational = set.new { "mode", "minor_threshold", "major_threshold" };
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	6 };
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	7
11431 4874b54af344 util.gc: Fix check for Lua 5.4 Kim Alvefur <zash@zash.se> parents: 10935 diff changeset	8 if _VERSION ~= "Lua 5.4" then
10933 f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	9 known_options.generational = nil;
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	10 known_options.incremental:remove("step_size");
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	11 end
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	12
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	13 local function configure(user, defaults)
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	14 local mode = user.mode or defaults.mode or "incremental";
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	15 if not known_options[mode] then
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	16 return nil, "GC mode not supported on ".._VERSION..": "..mode;
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	17 end
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	18
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	19 for k, v in pairs(user) do
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	20 if not known_options[mode]:contains(k) then
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	21 return nil, "Unknown GC parameter: "..k;
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	22 elseif k ~= "mode" and type(v) ~= "number" then
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	23 return nil, "parameter '"..k.."' should be a number";
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	24 end
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	25 end
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	26
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	27 if mode == "incremental" then
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	28 if _VERSION == "Lua 5.4" then
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	29 collectgarbage(mode,
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	30 user.threshold or defaults.threshold,
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	31 user.speed or defaults.speed,
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	32 user.step_size or defaults.step_size
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	33 );
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	34 else
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	35 collectgarbage("setpause", user.threshold or defaults.threshold);
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	36 collectgarbage("setstepmul", user.speed or defaults.speed);
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	37 end
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	38 elseif mode == "generational" then
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	39 collectgarbage(mode,
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	40 user.minor_threshold or defaults.minor_threshold,
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	41 user.major_threshold or defaults.major_threshold
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	42 );
10935 2d57c49bfa12 util.gc: Linter fixes [luacheck] Matthew Wild <mwild1@gmail.com> parents: 10933 diff changeset	43 end
10933 f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	44 return true;
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	45 end
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	46
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	47 return {
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	48 configure = configure;
f59bc81245b3 util.gc: New module for configuring the Lua garbage collector Matthew Wild <mwild1@gmail.com> parents: diff changeset	49 };

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c673ff1075bd

util/gc.lua

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util/gc.lua @ 13461:c673ff1075bd

Software `/` code `/` prosody