From 055104f5b6a0264974c5d9f2a55499420a1c9c2a Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Thu, 8 Apr 2010 14:16:46 -0300
Subject: keep memory-error message in the global state, so that its use does
 not depend on Lua internalizing strings to avoid a string creation on memory
 errors

---
 lstate.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'lstate.c')

diff --git a/lstate.c b/lstate.c
index 51272622..0d88c960 100644
--- a/lstate.c
+++ b/lstate.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lstate.c,v 2.76 2010/03/29 17:43:14 roberto Exp roberto $
+** $Id: lstate.c,v 2.77 2010/04/05 16:35:37 roberto Exp roberto $
 ** Global State
 ** See Copyright Notice in lua.h
 */
@@ -34,6 +34,9 @@
 #endif
 
 
+#define MEMERRMSG       "not enough memory"
+
+
 /*
 ** thread state + extra space
 */
@@ -157,7 +160,9 @@ static void f_luaopen (lua_State *L, void *ud) {
   luaS_resize(L, MINSTRTABSIZE);  /* initial size of string table */
   luaT_init(L);
   luaX_init(L);
-  luaS_fix(luaS_newliteral(L, MEMERRMSG));
+  /* pre-create memory-error message */
+  g->memerrmsg = luaS_newliteral(L, MEMERRMSG);
+  luaS_fix(g->memerrmsg);  /* it should never be collected */
   g->GCthreshold = 4*g->totalbytes;
 }
 
-- 
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