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annotate mod_graceful_shutdown/mod_graceful_shutdown.lua @ 2494:d300ae5dba87

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mod_smacks: Fix some bugs with smacks-ack-delayed event triggering. The old code had several flaws which are addressed here. First of all this fixes the if statement guarding the event generation There where some timing glitches addressed by this commit as well.
author tmolitor <thilo@eightysoft.de>
date Sun, 12 Feb 2017 21:23:22 +0100
parents 4652a112a4ba
children 8dbaa5e753f3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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);