From 3393fd7f257397199c6ecd143f956a19ee4a0cf7 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Mon, 1 Dec 1997 18:31:25 -0200
Subject: first version of "lua_close"

---
 lstring.c | 40 +++++++++++++++++++++++++++++++++++++++-
 1 file changed, 39 insertions(+), 1 deletion(-)

(limited to 'lstring.c')

diff --git a/lstring.c b/lstring.c
index b4e435df..6f3ba519 100644
--- a/lstring.c
+++ b/lstring.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lstring.c,v 1.5 1997/11/19 17:29:23 roberto Exp roberto $
+** $Id: lstring.c,v 1.6 1997/11/21 19:00:46 roberto Exp roberto $
 ** String table (keep all strings handled by Lua)
 ** See Copyright Notice in lua.h
 */
@@ -195,6 +195,44 @@ TaggedString *luaS_collector (void)
 }
 
 
+TaggedString *luaS_collectudata (void)
+{
+  TaggedString *frees = NULL;
+  int i;
+  L->rootglobal.next = NULL;  /* empty list of globals */
+  for (i=0; i<NUM_HASHS; i++) {
+    stringtable *tb = &L->string_root[i];
+    int j;
+    for (j=0; j<tb->size; j++) {
+      TaggedString *t = tb->hash[j];
+      if (t == NULL || t == &EMPTY || t->constindex != -1)
+        continue;  /* get only user datas */
+      t->head.next = (GCnode *)frees;
+      frees = t;
+      tb->hash[j] = &EMPTY;
+    }
+  }
+  return frees;
+}
+
+
+void luaS_freeall (void)
+{
+  int i;
+  for (i=0; i<NUM_HASHS; i++) {
+    stringtable *tb = &L->string_root[i];
+    int j;
+    for (j=0; j<tb->size; j++) {
+      TaggedString *t = tb->hash[j];
+      if (t == &EMPTY) continue;
+      luaM_free(t);
+    }
+    luaM_free(tb->hash);
+  }
+  luaM_free(L->string_root);
+}
+
+
 void luaS_rawsetglobal (TaggedString *ts, TObject *newval)
 {
   ts->u.globalval = *newval;
-- 
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