new function 'lua_setallocf'

lapi.c

@@ -1,5 +1,5 @@
 /*
-** $Id: lapi.c,v 2.48 2005/09/01 17:42:22 roberto Exp roberto $
+** $Id: lapi.c,v 2.49 2005/09/14 17:44:48 roberto Exp roberto $
 ** Lua API
 ** See Copyright Notice in lua.h
 */
@@ -992,8 +992,20 @@ LUA_API void lua_concat (lua_State *L, int n) {
 
 
 LUA_API lua_Alloc lua_getallocf (lua_State *L, void **ud) {
+  lua_Alloc f;
+  lua_lock(L);
   if (ud) *ud = G(L)->ud;
-  return G(L)->frealloc;
+  f = G(L)->frealloc;
+  lua_unlock(L);
+  return f;
+}
+
+
+LUA_API void lua_setallocf (lua_State *L, lua_Alloc f, void *ud) {
+  lua_lock(L);
+  G(L)->ud = ud;
+  G(L)->frealloc = f;
+  lua_unlock(L);
 }
 
 

ltests.c

@@ -1,5 +1,5 @@
 /*
-** $Id: ltests.c,v 2.30 2005/08/26 17:36:32 roberto Exp roberto $
+** $Id: ltests.c,v 2.31 2005/09/14 17:48:57 roberto Exp roberto $
 ** Internal Module for Debugging of the Lua Implementation
 ** See Copyright Notice in lua.h
 */
@@ -1124,6 +1124,7 @@ int luaB_opentests (lua_State *L) {
   void *ud;
   lua_assert(lua_getallocf(L, &ud) == debug_realloc);
   lua_assert(ud == cast(void *, &memcontrol));
+  lua_setallocf(L, lua_getallocf(L, NULL), ud);
   lua_state = L;  /* keep first state to be opened */
   luaL_register(L, "T", tests_funcs);
   return 0;

lua.h

@@ -1,5 +1,5 @@
 /*
-** $Id: lua.h,v 1.211 2005/08/12 13:34:15 roberto Exp roberto $
+** $Id: lua.h,v 1.212 2005/08/25 20:02:08 roberto Exp roberto $
 ** Lua - An Extensible Extension Language
 ** Lua.org, PUC-Rio, Brazil (http://www.lua.org)
 ** See Copyright Notice at the end of this file
@@ -239,6 +239,7 @@ LUA_API int   (lua_next) (lua_State *L, int idx);
 LUA_API void  (lua_concat) (lua_State *L, int n);
 
 LUA_API lua_Alloc (lua_getallocf) (lua_State *L, void **ud);
+LUA_API void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);