Nginx + Lua + 共享内存

lua_package_path "/usr/local/share/luajit-2.0.2/jit?.lua;;";
lua_shared_dict devicedb 45m;
location /query {
default_type 'text/plain';
content_by_lua '
local args = ngx.req.get_uri_args()
local devicetype = args["device"]
local devicedb = ngx.shared.devicedb
local res = devicedb:get(devicetype)

ngx.say(res)
';
}

location /update {
default_type 'text/plain';
content_by_lua '
local devicedb = ngx.shared.devicedb

for item in io.lines("/usr/local/nginx-1.4.2/data/rule.txt") do
_,_,device_type, device_rule = string.find(item, "^(%a+)--(%a+)$")
devicedb:set(device_type,device_rule)
end

ngx.say("ok")
';
}

SAMSUNG--samRule
APPLE--appRule
XIAOMI--xiaRule