Mercurial > prosody-modules

annotate misc/systemd/socket-activation.lua @ 5245:e22cae58141d

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mod_http_oauth2: Organize HTTP routes with comments Starting to get hard to follow. Usually one would start tracing the steps at the HTTP authorize route. Vaguely sorted alphabetically by path and point in the flow. (/register comes before /authorize tho)
author Kim Alvefur <zash@zash.se>
date Sun, 12 Mar 2023 11:27:29 +0100
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
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;
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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
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
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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