Mercurial > prosody-modules

annotate misc/systemd/socket-activation.lua @ 4565:3b2ae854842c

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mod_muc_bot: Save occupant to room This has some side-effects: Firstly, the bot shows up in occupant list, which is nice. Secondly, the bot starts receiving messages from the room which might be wanted, but it would be better to join the room for real in this case.
author Kim Alvefur <zash@zash.se>
date Sat, 10 Apr 2021 19:23:25 +0200
parents 3296a09b4e57
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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3296a09b4e57 misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
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1 -- Monkeypatch to support socket activation
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2 --
3296a09b4e57 misc/systemd: Experimental files for enabling socket activation
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3 -- Requires LuaSocket after "agnostic" changes merged
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4 --
3296a09b4e57 misc/systemd: Experimental files for enabling socket activation
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5 -- To enable:
3296a09b4e57 misc/systemd: Experimental files for enabling socket activation
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6 -- RunScript "socket-activation.lua"
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7
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8 local socket = require"socket";
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9 local tcp_serv_mt = debug.getregistry()["tcp{server}"];
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10 local socket_bind = socket.bind;
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11
3296a09b4e57 misc/systemd: Experimental files for enabling socket activation
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12 local SD_LISTEN_FDS_START = 3;
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13
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14 local fds = tonumber(os.getenv"LISTEN_FDS") or 0;
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16 if fds < SD_LISTEN_FDS_START then return; end
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17
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18 local servs = {};
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19
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20 for i = 1, fds do
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21 local serv = socket.tcp();
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22 if serv:getfd() >= 0 then
3296a09b4e57 misc/systemd: Experimental files for enabling socket activation
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23 return; -- This won't work, we will leak the old FD
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24 end
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25 debug.setmetatable(serv, tcp_serv_mt);
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26 serv:setfd(SD_LISTEN_FDS_START + i - 1);
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27 local ip, port = serv:getsockname();
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28 servs [ ip .. ":" .. port ] = serv;
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29 end
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30
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31 function socket.bind( ip, port, backlog )
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32 local sock = servs [ ip .. ":" .. port ];
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33 if sock then
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34 servs [ ip .. ":" .. port ] = nil;
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35 return sock;
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36 end
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37 if next(servs) == nil then
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38 -- my work here is done
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39 socket.bind = socket_bind;
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40 end
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41 return socket_bind( ip, port, backlog );
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42 end