Mercurial > prosody-modules

annotate misc/systemd/socket-activation.lua @ 4300:3f3b672b7616

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mod_vcard_muc: Pass room object around instead of JID, hopefully fixing traceback More efficient to pass the object around instead of using the JID and looking up the object when needed. It seems in some (undetermined) cases get_room_from_jid(room.jid) is nil.
author Matthew Wild <mwild1@gmail.com>
date Tue, 15 Dec 2020 10:49:11 +0000
parents 3296a09b4e57
children
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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
3296a09b4e57 misc/systemd: Experimental files for enabling 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;
3296a09b4e57 misc/systemd: Experimental files for enabling socket activation
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13
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14 local fds = tonumber(os.getenv"LISTEN_FDS") or 0;
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15
3296a09b4e57 misc/systemd: Experimental files for enabling socket activation
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16 if fds < SD_LISTEN_FDS_START then return; end
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17
3296a09b4e57 misc/systemd: Experimental files for enabling socket activation
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18 local servs = {};
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19
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20 for i = 1, fds do
3296a09b4e57 misc/systemd: Experimental files for enabling socket activation
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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