optimize: removed the unused shdict metatable retrieval code

openresty · Jan 11, 2017 · b952fa9 · b952fa9
1 parent a73f7af
commit b952fa9
Showing 1 changed file with 0 additions and 7 deletions.
diff --git a/lib/resty/lock.lua b/lib/resty/lock.lua
@@ -6,7 +6,6 @@ local ffi_new = ffi.new
 local shared = ngx.shared
 local sleep = ngx.sleep
 local log = ngx.log
-local shdict_mt
 local debug = ngx.config.debug
 local setmetatable = setmetatable
 local getmetatable = getmetatable
@@ -131,9 +130,6 @@ function _M.lock(self, key)
     local ok, err = dict:add(key, true, exptime)
     if ok then
         cdata.key_id = ref_obj(key)
-        if not shdict_mt then
-            shdict_mt = getmetatable(dict)
-        end
         return 0
     end
     if err ~= "exists" then
@@ -157,9 +153,6 @@ function _M.lock(self, key)
         local ok, err = dict:add(key, true, exptime)
         if ok then
             cdata.key_id = ref_obj(key)
-            if not shdict_mt then
-                shdict_mt = getmetatable(dict)
-            end
             return elapsed
         end