annotate mod_graceful_shutdown/mod_graceful_shutdown.lua @ 4421:94805a7e7b30

mod_invites: rework CLI parsing to support groups To make this sensible, the code had to move from rather simple parsing to something which looks more like getopt or your typical shell script.
author Jonas Schäfer <jonas@wielicki.name>
date Sun, 31 Jan 2021 19:16:36 +0100
parents 4652a112a4ba
children 8dbaa5e753f3
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4652a112a4ba mod_graceful_shutdown: Experiment in improving the shutdown experience
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1 -- luacheck: ignore 122/prosody 113/prosody
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2
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3 local timer = require "util.timer";
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4 local portman = require "core.portmanager";
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5 local server = require "net.server";
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6
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7 module:set_global();
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8 local orig_shutdown = prosody.shutdown;
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9
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10 local pause = module:get_option_number("shutdown_pause", 1);
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11
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12 function module.unload()
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13 prosody.shutdown = orig_shutdown;
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14 end
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15
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16 prosody.shutdown = coroutine.wrap(function (reason, code)
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17 prosody.shutdown_reason = reason;
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18 prosody.shutdown_code = code;
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19 timer.add_task(pause, prosody.shutdown);
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20 coroutine.yield(true, "shutdown initiated");
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21 -- Close c2s ports, stop accepting new connections
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22 portman.deactivate("c2s");
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23 -- Close all c2s sessions
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24 for _, sess in pairs(prosody.full_sessions) do
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25 sess:close{ condition = "system-shutdown", text = reason }
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26 end
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27 -- Wait for notifications to be sent
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28 coroutine.yield(pause);
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29 -- Event for everything else to shut down
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30 prosody.events.fire_event("server-stopping", {
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31 reason = reason;
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32 code = code;
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33 });
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34 -- And wait
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35 coroutine.yield(pause);
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36 -- And stop main event loop
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37 server.setquitting(true);
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38 -- And wait for death
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39 coroutine.yield(pause * 3);
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40 -- you came back? die zombie!
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41 os.exit(1);
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42 end);