File

net/cqueues.lua @ 13265:6ac5ad578565

mod_cron: Load last task run time inside task runner to fix async This ensures that all interactions with storage happen inside an async thread, allowing async waiting to be performed in storage drivers.
author Kim Alvefur <zash@zash.se>
date Sat, 14 Oct 2023 22:32:33 +0200
parent 12974:ba409c67353b
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-- Prosody IM
-- Copyright (C) 2014 Daurnimator
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
-- This module allows you to use cqueues with a net.server mainloop
--

local server = require "prosody.net.server";
local cqueues = require "cqueues";
local timer = require "prosody.util.timer";
assert(cqueues.VERSION >= 20150113, "cqueues newer than 20150113 required")

-- Create a single top level cqueue
local cq;

if server.cq then -- server provides cqueues object
	cq = server.cq;
elseif server.watchfd then
	cq = cqueues.new();
	local timeout = timer.add_task(cq:timeout() or 0, function ()
		-- FIXME It should be enough to reschedule this timeout instead of replacing it, but this does not work.  See https://issues.prosody.im/1572
		assert(cq:loop(0));
		return cq:timeout();
	end);
	server.watchfd(cq:pollfd(), function ()
		assert(cq:loop(0));
		local t = cq:timeout();
		if t then
			timer.stop(timeout);
			timeout = timer.add_task(cq:timeout(), function ()
				assert(cq:loop(0));
				return cq:timeout();
			end);
		end
	end);
else
	error "NYI"
end

return {
	cq = cq;
}