# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1478560196 -3600
# Node ID 3296a09b4e57e89aca084ea355151e7e6ffb5883
# Parent  f8ecb4b248b08b862abc77b7d01546ffc439e719
misc/systemd: Experimental files for enabling socket activation

diff -r f8ecb4b248b0 -r 3296a09b4e57 misc/systemd/prosody-c2s.socket
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/systemd/prosody-c2s.socket	Tue Nov 08 00:09:56 2016 +0100
@@ -0,0 +1,9 @@
+[Install]
+WantedBy=sockets.target
+
+[Socket]
+ListenStream=0.0.0.0:5222
+ListenStream=5222
+BindIPv6Only=ipv6-only
+Accept=false
+Service=prosody.service
diff -r f8ecb4b248b0 -r 3296a09b4e57 misc/systemd/prosody-s2s.socket
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/systemd/prosody-s2s.socket	Tue Nov 08 00:09:56 2016 +0100
@@ -0,0 +1,9 @@
+[Install]
+WantedBy=sockets.target
+
+[Socket]
+ListenStream=0.0.0.0:5269
+ListenStream=5269
+BindIPv6Only=ipv6-only
+Accept=false
+Service=prosody.service
diff -r f8ecb4b248b0 -r 3296a09b4e57 misc/systemd/socket-activation.lua
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/systemd/socket-activation.lua	Tue Nov 08 00:09:56 2016 +0100
@@ -0,0 +1,42 @@
+-- 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