Mercurial > prosody-modules
annotate misc/systemd/socket-activation.lua @ 5637:acd2f397ce6b
mod_rest/rest.sh: Silence shellcheck SC1091
Stops it from trying and failing to read the config file, since the path
uses variables.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sat, 26 Aug 2023 14:49:45 +0200 |
parents | 3296a09b4e57 |
children |
rev | line source |
---|---|
2352
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
1 -- Monkeypatch to support socket activation |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
2 -- |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
3 -- Requires LuaSocket after "agnostic" changes merged |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
4 -- |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
5 -- To enable: |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
6 -- RunScript "socket-activation.lua" |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
7 |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
8 local socket = require"socket"; |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
9 local tcp_serv_mt = debug.getregistry()["tcp{server}"]; |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
10 local socket_bind = socket.bind; |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
11 |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
12 local SD_LISTEN_FDS_START = 3; |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
13 |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
14 local fds = tonumber(os.getenv"LISTEN_FDS") or 0; |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
15 |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
16 if fds < SD_LISTEN_FDS_START then return; end |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
17 |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
18 local servs = {}; |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
19 |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
20 for i = 1, fds do |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
21 local serv = socket.tcp(); |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
22 if serv:getfd() >= 0 then |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
23 return; -- This won't work, we will leak the old FD |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
24 end |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
25 debug.setmetatable(serv, tcp_serv_mt); |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
26 serv:setfd(SD_LISTEN_FDS_START + i - 1); |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
27 local ip, port = serv:getsockname(); |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
28 servs [ ip .. ":" .. port ] = serv; |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
29 end |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
30 |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
31 function socket.bind( ip, port, backlog ) |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
32 local sock = servs [ ip .. ":" .. port ]; |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
33 if sock then |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
34 servs [ ip .. ":" .. port ] = nil; |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
35 return sock; |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
36 end |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
37 if next(servs) == nil then |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
38 -- my work here is done |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
39 socket.bind = socket_bind; |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
40 end |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
41 return socket_bind( ip, port, backlog ); |
3296a09b4e57
misc/systemd: Experimental files for enabling socket activation
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
42 end |