【性能调优】定时器体检：僵尸定时器的排查与回收

-- 定时器体检：登记台账
local player = class(actor)
local registry = {}
local function regTimer(player, timerId, purpose, ttl)
    registry[timerId] = {
        owner = getbaseinfo(player, 3) or "system",
        purpose = purpose,
        born = os.time(),
        ttl = ttl or 3600,
    }
end
local function sweepUnknown()
    for id, t in pairs(registry) do
        if os.time() - t.born > t.ttl then
            registry[id] = nil
            cancelTimerById(id)
            sendmsg(class(t.owner) or player, 1, 0, "过期定时器 " .. id .. " 已回收。")
        end
    end
end

-- 周期巡检：僵尸回收
local player = class(actor)
local function dailyInspect(player)
    local zombies = 0
    for id, t in pairs(registry) do
        local alive = false
        for _, act in ipairs(activeActivities) do
            if string.find(t.purpose, act, 1, true) then alive = true end
        end
        if not alive then
            cancelTimerById(id)
            registry[id] = nil
            zombies = zombies + 1
        end
    end
    sendmsg(player, 1, 0, "定时器巡检完成，回收僵尸 " .. zombies .. " 个。")
end