mod_posix: Move POSIX signal handling into util.startup to avoid race
When libunbound is initialized, it spawns a thread to work in.
In case a module initializes libunbound, e.g. by triggering a s2s
connection, Prosody would not handle signals, instead immediately quit
on e.g. the reload (SIGHUP) signal. Likely because the libunbound thread
would not have inherited the signal mask from the main Prosody thread.
Thanks Menel, riau and franck-x for reporting and help narrowing down
-- Prosody IM
-- Copyright (C) 2008-2009 Matthew Wild
-- Copyright (C) 2008-2009 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local datetime = require "prosody.util.datetime";
local jid_split = require "prosody.util.jid".split;
local offline_messages = module:open_store("offline", "archive");
module:add_feature("msgoffline");
module:hook("message/offline/handle", function(event)
local origin, stanza = event.origin, event.stanza;
local to = stanza.attr.to;
local node;
if to then
node = jid_split(to)
else
node = origin.username;
end
local ok = offline_messages:append(node, nil, stanza, os.time(), "");
if ok then
module:log("debug", "Saved to offline storage: %s", stanza:top_tag());
end
return ok;
end, -1);
module:hook("message/offline/broadcast", function(event)
local origin = event.origin;
origin.log("debug", "Broadcasting offline messages");
local node, host = origin.username, origin.host;
local data = offline_messages:find(node);
if not data then return true; end
for _, stanza, when in data do
stanza:tag("delay", {xmlns = "urn:xmpp:delay", from = host, stamp = datetime.datetime(when)}):up(); -- XEP-0203
origin.send(stanza);
end
local ok = offline_messages:delete(node);
if type(ok) == "number" and ok > 0 then
origin.log("debug", "%d offline messages consumed");
end
return true;
end, -1);