Nabble - Lua

Re: luabind - problem with luabind::object reference

2009-12-20T11:52:04Z

Yes, the object has a reference. However, the object should releases the reference when it is destroyed. Which happens immediately after creation.

No, his problem is the fact that the object is still on the stack. Luabind's from_stack call does not pop it off of the stack for you; you have to do that yourself.

On 12/20/2009 9:30 AM, Linker wrote:

luabind::object obj(luabind::from_stack(ls, -1));
The "obj" hold a ref.

On Sun, Dec 20, 2009 at 18:25, Oleksandr . <sqbrain@...> wrote:

Using C++, lua5.1, luabind 0.7

*** Lua code: ***
-- allocates near 8Mb of memory
function fff()
    local t = {}
    for i = 1, 300000 do
        table.insert(t, i)
    end
    return t
end

*** C++ code ***
{
    luaL_dostring(lua_state, "return fff()");
    luabind::object obj(luabind::from_stack(ls, -1));
}
lua_gc(l_, LUA_GCCOLLECT, 0); // collect garbage

Result: Lua still have a 8Mb allocated memory. Garbage collection ignores that table object. It has references anywhere? But where? That table deallocates only on program exit (when "lua_close" function called). How to solve this problem and what is the reason?

Thank you.

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--
Regards,
Linker Lin
linker.m.lin@...
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Nabble - Lua

Re: luabind - problem with luabind::object reference

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