File

util/watchdog.lua @ 13055:e732f9dfdfc8

mod_mam: port to use util.human.io.parse_duration Updated by Zash, the original patch by Jonas had put the duration parsing function in util.datetime but MattJ later did the same thing but differently in f4d7fe919969
author Jonas Schäfer <jonas@wielicki.name>
date Thu, 28 Apr 2022 20:38:40 +0200
parent 12975:d10957394a3c
line wrap: on
line source

local timer = require "prosody.util.timer";
local setmetatable = setmetatable;

local _ENV = nil;
-- luacheck: std none

local watchdog_methods = {};
local watchdog_mt = { __index = watchdog_methods };

local function new(timeout, callback)
	local watchdog = setmetatable({
		timeout = timeout;
		callback = callback;
		timer_id = nil;
	}, watchdog_mt);

	watchdog:reset(); -- Kick things off

	return watchdog;
end

function watchdog_methods:reset(new_timeout)
	if new_timeout then
		self.timeout = new_timeout;
	end
	if self.timer_id then
		timer.reschedule(self.timer_id, self.timeout+1);
	else
		self.timer_id = timer.add_task(self.timeout+1, function ()
			return self:callback();
		end);
	end
end

function watchdog_methods:cancel()
	if self.timer_id then
		timer.stop(self.timer_id);
		self.timer_id = nil;
	end
end

return {
	new = new;
};