From 9a871dd3db1baf8c7ac3bb94f03eb1f1bc3532e9 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Wed, 28 Aug 2013 15:30:26 -0300
Subject: [PATCH] tables and userdata all go to local list, too

---
 lgc.c     |  6 ++++--
 lstate.c  | 10 +++++++++-
 lstring.c |  4 ++--
 ltable.c  |  4 ++--
 4 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/lgc.c b/lgc.c
index f905d9d5..8661fe8d 100644
--- a/lgc.c
+++ b/lgc.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lgc.c,v 2.153 2013/08/27 18:53:35 roberto Exp roberto $
+** $Id: lgc.c,v 2.154 2013/08/27 20:04:00 roberto Exp roberto $
 ** Garbage Collector
 ** See Copyright Notice in lua.h
 */
@@ -867,11 +867,13 @@ void luaC_checkfinalizer (lua_State *L, GCObject *o, Table *mt) {
       g->sweepgc = sweeptolive(L, g->sweepgc, NULL);
     }
     /* search for pointer pointing to 'o' */
-    for (p = &g->allgc; *p != o; p = &gch(*p)->next) { /* empty */ }
+    p = (testbit(ho->marked, LOCALMARK)) ? &g->allgc : &g->localgc;
+    for (; *p != o; p = &gch(*p)->next) { /* empty */ }
     *p = ho->next;  /* remove 'o' from 'allgc' list */
     ho->next = g->finobj;  /* link it in list 'finobj' */
     g->finobj = o;
     l_setbit(ho->marked, FINALIZEDBIT);  /* mark it as such */
+    l_setbit(ho->marked, LOCALMARK);  /* not in 'localgc' anymore */
     if (!keepinvariant(g))  /* not keeping invariant? */
       makewhite(g, o);  /* "sweep" object */
   }
diff --git a/lstate.c b/lstate.c
index 4d141aec..1fe59cd3 100644
--- a/lstate.c
+++ b/lstate.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lstate.c,v 2.106 2013/08/26 12:41:10 roberto Exp roberto $
+** $Id: lstate.c,v 2.107 2013/08/27 18:53:35 roberto Exp roberto $
 ** Global State
 ** See Copyright Notice in lua.h
 */
@@ -165,6 +165,14 @@ static void init_registry (lua_State *L, global_State *g) {
   sethvalue(L, &g->l_registry, registry);
   luaH_resize(L, registry, LUA_RIDX_LAST, 0);
   nolocal(obj2gco(registry));
+  /* registry is the first "regular" object created by a state; move it
+     from 'localgc' to 'allgc' so that it act as a "sentinel" there */
+  lua_assert(g->allgc == NULL &&
+             registry->next == NULL &&
+             g->localgc == obj2gco(registry));
+  g->allgc = g->localgc;
+  g->localgc = NULL;
+  l_setbit(registry->marked, LOCALMARK);  /* mark that it is not in 'localgc' */
   /* registry[LUA_RIDX_MAINTHREAD] = L */
   setthvalue(L, &temp, L);  /* temp = L */
   luaH_setint(L, registry, LUA_RIDX_MAINTHREAD, &temp);
diff --git a/lstring.c b/lstring.c
index 3fb86ab2..c76b6724 100644
--- a/lstring.c
+++ b/lstring.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lstring.c,v 2.31 2013/08/23 13:34:54 roberto Exp roberto $
+** $Id: lstring.c,v 2.32 2013/08/27 20:04:00 roberto Exp roberto $
 ** String table (keeps all strings handled by Lua)
 ** See Copyright Notice in lua.h
 */
@@ -213,7 +213,7 @@ Udata *luaS_newudata (lua_State *L, size_t s, Table *e) {
   Udata *u;
   if (s > MAX_SIZE - sizeof(Udata))
     luaM_toobig(L);
-  u = &luaC_newobj(L, LUA_TUSERDATA, sizeof(Udata) + s, &G(L)->allgc, 0)->u;
+  u = &luaC_newobj(L, LUA_TUSERDATA, sizeof(Udata) + s, NULL, 0)->u;
   u->uv.len = s;
   u->uv.metatable = NULL;
   u->uv.env = e;
diff --git a/ltable.c b/ltable.c
index ed5d9977..f7efdc59 100644
--- a/ltable.c
+++ b/ltable.c
@@ -1,5 +1,5 @@
 /*
-** $Id: ltable.c,v 2.79 2013/08/18 16:12:18 roberto Exp roberto $
+** $Id: ltable.c,v 2.80 2013/08/27 20:04:00 roberto Exp roberto $
 ** Lua tables (hash)
 ** See Copyright Notice in lua.h
 */
@@ -378,7 +378,7 @@ static void rehash (lua_State *L, Table *t, const TValue *ek) {
 
 
 Table *luaH_new (lua_State *L) {
-  Table *t = &luaC_newobj(L, LUA_TTABLE, sizeof(Table), &G(L)->allgc, 0)->h;
+  Table *t = &luaC_newobj(L, LUA_TTABLE, sizeof(Table), NULL, 0)->h;
   t->metatable = NULL;
   t->flags = cast_byte(~0);
   t->array = NULL;