Lua Asyncio (another example)

local await = coroutine.yield
local loop = Loop()
loop.max_runtime = 30 -- You can play a bit with these values
loop.iteration_cooldown = 4000 -- This is the best one when you need to spam a bunch of tasks that are not that heavy!
loop.accept_faster = true -- It runs it all as fast as it cans
-- These tasks are very soft so this configuration will be one of the bests for it!

local is_online = {}

function eventPlayerDataLoaded(player, data)
    is_online[player] = true
end

function isOnline(player, handler)
    system.loadPlayerData(player)
    is_online[player] = false

    loop.sleep() -- waits for the next iteration

    handler(is_online[player])
end

function eventChatCommand(player, command)
    loop.add_task(Task(isOnline, command, function(is_online)
        tfm.exec.chatMessage(command .. " is o" .. (is_online and "n" or "ff") .. "line!")
    end))
end

function eventLoop()
    loop.run_tasks()
end