mod_muc_markers: Add option for @id rewriting, default off (may break some clients) XEP-0333 was updated to clarify that stanza-id should be used instead of the 'id' attribute when in a MUC. Some clients still use the id attribute, which is why we were rewriting it. Rewriting is bad because mod_muc advertises stable_id, indicating that Prosody does *not* rewrite ids. Recent versions of Conversations actually depend on this being true. All clients should migrate to using stanza-id for markers. See XEP-0333.

module:set_global();

local measure = require"core.statsmanager".measure;
local pposix = require"util.pposix";

local measures = {};
setmetatable(measures, {
	__index = function (t, k)
		local m = measure("amount", "memory."..k); t[k] = m; return m;
	end
});
module:hook("stats-update", function ()
	local m = measures;
	for k, v in pairs(pposix.meminfo()) do
		m[k](v);
	end
end);