Re: Userdata environment
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- Subject: Re: Userdata environment
- From: Shmuel Zeigerman <shmuz@...>
- Date: 2008年3月31日 19:37:54 +0200
Mike Pall wrote:
If you're storing all your userdatas in the array part, a simple
't.foo = nil' triggers the shrinking. If you'r storing them in
the hash part, a 't[1] = nil' will do.
My userdatas are keys in a weak keyed table. I've just tried your recipe
in my application, both with t.foo=nil and with t[1]=nil -- it didn't help.
Here's a modified version of your example:
collectgarbage()
local t={}
print(gcinfo())
for i=1,1e6,3 do t[i]=true end
for i=1,1e6,3 do t[i]=nil end
collectgarbage()
print(gcinfo())
t.foo, t[1], t[2] = nil
print(gcinfo())
Output:
20
16404
16404
--
Shmuel