Mercurial > prosody-modules
view misc/systemd/socket-activation.lua @ 3856:8bdb1729529b
mod_rest: Make XHTML-IM mapping more convenient
Avoid burdening web developers with XML namespace attribute
Might be a bit fragile
Note that the <body> element must be included
author | Kim Alvefur <zash@zash.se> |
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date | Sat, 25 Jan 2020 00:46:09 +0100 |
parents | 3296a09b4e57 |
children |
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-- Monkeypatch to support socket activation -- -- Requires LuaSocket after "agnostic" changes merged -- -- To enable: -- RunScript "socket-activation.lua" local socket = require"socket"; local tcp_serv_mt = debug.getregistry()["tcp{server}"]; local socket_bind = socket.bind; local SD_LISTEN_FDS_START = 3; local fds = tonumber(os.getenv"LISTEN_FDS") or 0; if fds < SD_LISTEN_FDS_START then return; end local servs = {}; for i = 1, fds do local serv = socket.tcp(); if serv:getfd() >= 0 then return; -- This won't work, we will leak the old FD end debug.setmetatable(serv, tcp_serv_mt); serv:setfd(SD_LISTEN_FDS_START + i - 1); local ip, port = serv:getsockname(); servs [ ip .. ":" .. port ] = serv; end function socket.bind( ip, port, backlog ) local sock = servs [ ip .. ":" .. port ]; if sock then servs [ ip .. ":" .. port ] = nil; return sock; end if next(servs) == nil then -- my work here is done socket.bind = socket_bind; end return socket_bind( ip, port, backlog ); end