diff options
Diffstat (limited to 'msb-core/openresty-ext/src/assembly/resources/openresty/nginx/luaext/lib/tools')
-rw-r--r-- | msb-core/openresty-ext/src/assembly/resources/openresty/nginx/luaext/lib/tools/db_cache.lua | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/msb-core/openresty-ext/src/assembly/resources/openresty/nginx/luaext/lib/tools/db_cache.lua b/msb-core/openresty-ext/src/assembly/resources/openresty/nginx/luaext/lib/tools/db_cache.lua deleted file mode 100644 index 7f40590..0000000 --- a/msb-core/openresty-ext/src/assembly/resources/openresty/nginx/luaext/lib/tools/db_cache.lua +++ /dev/null @@ -1,54 +0,0 @@ ---[[
-
- Copyright (C) 2016 ZTE, Inc. and others. All rights reserved. (ZTE)
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
-
---]]
-
--- db cache over LRUCache, used within one worker processes
-local _M = {}
-_M._VERSION = '1.0.0'
-
-local lrucache = require "resty.lrucache"
-
-local EMPTY_DATA = '_EMPTY_'
-
--- we need to initialize the cache on the lua module level so that
--- it can be shared by all the requests served by each nginx worker process:
-local cache,err = lrucache.new(200) -- allow up to 200 items in the cache
-if not cache then
- return ngx.log(ngx.ERR,"failed to create the cache: " .. (err or "unknown"))
-end
-
-function _M.get(key)
- return cache:get(key)
-end
-
-function _M.set(key,value)
- return _M:set(key, value, nil)
-end
-
-function _M.set(key,value,ttl)
- if not value then
- value = EMPTY_DATA
- end
- return cache:set(key, value, ttl)
-end
-
--- check if the data returned by get() is considered empty
-function _M.is_empty(data)
- return data == EMPTY_DATA
-end
-
-return _M
\ No newline at end of file |