-- Scope manipulation routines
--
---- Create a new or get an already existing thread local store associated with
--- the current active coroutine. A thread local store is private a table object
--- whose values can't be accessed from outside of the running coroutine.
--- @return Table value representing the corresponding thread local store
-function threadlocal()
- local tbl = {}
+local tl_meta = {
+ __mode = "k",
- local function get(self, key)
- local t = rawget(self, coxpt[coroutine.running()] or coroutine.running() or 0)
+ __index = function(self, key)
+ local t = rawget(self, coxpt[coroutine.running()]
+ or coroutine.running() or 0)
return t and t[key]
- end
+ end,
- local function set(self, key, value)
+ __newindex = function(self, key, value)
local c = coxpt[coroutine.running()] or coroutine.running() or 0
if not rawget(self, c) then
rawset(self, c, { [key] = value })
rawget(self, c)[key] = value
end
end
+}
- setmetatable(tbl, {__index = get, __newindex = set, __mode = "k"})
-
- return tbl
+--- Create a new or get an already existing thread local store associated with
+-- the current active coroutine. A thread local store is private a table object
+-- whose values can't be accessed from outside of the running coroutine.
+-- @return Table value representing the corresponding thread local store
+function threadlocal(tbl)
+ return setmetatable(tbl or {}, tl_meta)
end