prosody-modules
281a864e7472
misc/systemd/socket-activation.lua

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misc/systemd/socket-activation.lua @ 4282:281a864e7472

mod_pubsub_feeds: Don't skip publishing items after an existing one I encountered a feed which was backwards, such that older entries were considered first and then it would skip newer entries. This may however run into trouble if the feed contains more items than what's persisted in pubsub.
author Kim Alvefur <zash@zash.se>
date Mon, 30 Nov 2020 15:17:29 +0100
parent 2352:3296a09b4e57
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2352
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 --
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5 -- To enable:
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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
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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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15
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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
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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