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annotate mod_auto_activate_hosts/mod_auto_activate_hosts.lua @ 4813:0a257d1402c3

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mod_muc_rtbl: Optimize case with zero hashes On the assumption that during quiet times between torrents of spam, the hash set would be empty. There would be no point in doing the operations and hashes to check for a match in that case.
author Kim Alvefur <zash@zash.se>
date Mon, 06 Dec 2021 18:19:19 +0100
parents 8b7bca07f5c0
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 module:set_global();
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2
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3 local hostmanager = require"core.hostmanager";
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4
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5 local array = require "util.array";
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6 local set = require "util.set";
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7 local it = require "util.iterators";
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8 local config = require "core.configmanager";
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10 local function host_not_global(host)
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11 return host ~= "*";
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12 end
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14 local function host_is_enabled(host)
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15 return config.get(host, "enabled") ~= false;
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16 end
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18 function handle_reload()
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19 local new_config = config.getconfig();
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20 local active_hosts = set.new(array.collect(it.keys(prosody.hosts)):filter(host_not_global));
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21 local enabled_hosts = set.new(array.collect(it.keys(new_config)):filter(host_is_enabled):filter(host_not_global));
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22 local need_to_activate = enabled_hosts - active_hosts;
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23 local need_to_deactivate = active_hosts - enabled_hosts;
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25 module:log("debug", "Config reloaded... %d hosts need activating, and %d hosts need deactivating", it.count(need_to_activate), it.count(need_to_deactivate));
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26 module:log("debug", "There are %d enabled and %d active hosts", it.count(enabled_hosts), it.count(active_hosts));
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27 for host in need_to_deactivate do
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28 hostmanager.deactivate(host);
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29 end
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31 -- If the lazy loader is loaded, hosts will get activated when they are needed
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32 if not(getmetatable(prosody.hosts) and getmetatable(prosody.hosts).lazy_loader) then
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33 for host in need_to_activate do
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34 hostmanager.activate(host);
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35 end
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36 end
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37 end
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39 module:hook_global("config-reloaded", handle_reload);