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- Subject: Re: Dump all strings/symbols?
- From: "Research" <research@...>
- Date: Sun, 25 Jun 2006 15:21:47 +0800
After messing about with this for a while, I found the following adapted
from the manual. If I call this function after nil'ing and gc'ing and
they're gone, is there anywhere else in Lua I need to check to be sure
they're really gone?
// function void ScriptDumpGlobals(lua_State *luaStatePtr)
void ScriptDumpGlobals(lua_State *luaStatePtr)
printf("Lua globals table dump start:\n");
// table is in the stack at index `t'
t = LUA_GLOBALSINDEX;
lua_pushnil(luaStatePtr); // first key
while(lua_next(luaStatePtr, t) != 0)
// `key' is at index -2 and `value' at index -1
printf("%s\n", lua_tostring(luaStatePtr, -2));
printf("%s - %s\n", lua_typename(luaStatePtr, lua_type(luaStatePtr, -2)),
lua_typename(luaStatePtr, lua_type(luaStatePtr, -1)));
lua_pop(luaStatePtr, 1); // removes `value'; keeps `key' for next iteration
printf("Lua globals table dump end.\n\n");
----- Original Message -----
From: "Research" <firstname.lastname@example.org>
To: "Lua List" <email@example.com>
Sent: Sunday, June 25, 2006 12:31 PM
Subject: Dump all strings/symbols?
I sorta asked this in reply to another question, but I still don't know how
to do it.
Is there a way to traverse the entire globals/registry and get the
strings/symbol names out? (only top level stuff is needed, not a deep
traversal) We're setting tables and functions to nil and it seems that not
everything is being garbage collected. I want some way to find out what
lua is still holding references to so I can clean them up. What are the
ways to do this?