Re: removing elements to ensure gc
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- Subject: Re: removing elements to ensure gc
- From: Edgar Toernig <froese@...>
- Date: Sun, 8 Feb 2004 14:13:04 +0100
Brett Bibby wrote:
>
- a7b45j3 = { a=1, b=2, alias=BossTank }
+ a7b45j3 = { a=1, b=2, alias="BossTank" }
BossTank = a7b45j3
> 1. How do I delete from C side a7b45j3 and alias so that they are
> both garbage collected? Currently I'm trying to do it like this:
- char table = { "a7b45j3" };
- char field = { "alias" };
+ char table[] = "a7b45j3";
+ char field[] = "alias";
// get table
lua_pushstring(L, table);
lua_gettable(L, LUA_GLOBALSINDEX);
// get field
lua_pushstring(L, field);
lua_gettable(L, -2);
// the string "Tank" is now at top of stack, push nil
lua_pushnil(L);
lua_settable(L, LUA_GLOBALSINDEX);
- // this should have changed Tank = a7b45j3 to Tank = nil in the globals table?
- // now remove external reference from table
- lua_pushstring(L, field);
- lua_pushnil(L);
- lua_settable(L, -3);
- // this should have removed the field alias from the table?
// now delete the table, first get it off the stack
lua_pop(L,1);
// put up the name, nil and set it back to globals
lua_pushstring(L, table);
lua_pushnil(L);
lua_settable(L, LUA_GLOBALSINDEX);
// DONE! ??????
Ciao, ET.