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https://github.com/JamesonHuang/OpenWrt_Luci_Lua.git
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43 lines
1.2 KiB
Lua
43 lines
1.2 KiB
Lua
module ("xiaoqiang.util.XQCacheUtil", package.seeall)
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local XQFunction = require("xiaoqiang.common.XQFunction")
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local XQConfigs = require("xiaoqiang.common.XQConfigs")
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local LuciUtil = require("luci.util")
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local LuciSys = require("luci.sys")
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local Nixio = require "nixio"
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local NixioFs = require "nixio.fs"
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function saveCache(key, data, expire)
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if XQFunction.isStrNil(key) or not data or not expire then
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return false
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end
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local path = "/tmp/"..key
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local info = {}
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info.data = data
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info.atime = LuciSys.uptime()
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info.expire = tostring(expire)
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local cache = Nixio.open(path, "w", 600)
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cache:writeall(LuciUtil.get_bytecode(info))
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cache:close()
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return true
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end
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function getCache(key)
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if XQFunction.isStrNil(key) then
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return nil
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end
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local path = "/tmp/"..key
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if not NixioFs.access(path) then
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return nil
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end
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local blob = NixioFs.readfile(path)
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local func = loadstring(blob)
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setfenv(func, {})
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local data = func()
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if data.atime and data.expire and tonumber(data.expire) > 0 and data.atime + data.expire < LuciSys.uptime() then
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return nil
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end
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return data.data
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end |