【网络通信】下行限速治理：令牌桶与优先级的广播队列** <!--TAGS: 网络通信,限速,广播

local tokens, lastRefill = 100, os.time()
local function takeToken()
    local now = os.time()
    tokens = math.min(100, tokens + (now - lastRefill) * 50)
    lastRefill = now
    if tokens >= 1 then
        tokens = tokens - 1
        return true
    end
    return false
end

local queues = { high = {}, mid = {}, low = {} }
setontimerex(72, 1)
function ontimer72()
    for _, lv in ipairs({ "high", "mid", "low" }) do
        while #queues[lv] > 0 do
            if not takeToken() then return end
            local msg = table.remove(queues[lv], 1)
            sendcentermsg(msg.text)
        end
    end
end