lua_lock receives its parameter via stack.

beginblock and endblock do not have parameters

lua.h

@@ -2,7 +2,7 @@
 ** LUA - Linguagem para Usuarios de Aplicacao
 ** Grupo de Tecnologia em Computacao Grafica
 ** TeCGraf - PUC-Rio
-** $Id: lua.h,v 3.9 1994/11/17 21:23:43 roberto Exp roberto $
+** $Id: lua.h,v 3.10 1994/11/17 21:27:30 roberto Exp roberto $
 */
 
 
@@ -36,8 +36,8 @@ int            lua_dostring 		(char *string);
 int            lua_callfunction		(lua_Object function);
 int	       lua_call			(char *funcname);
 
-int	       lua_beginblock		(void);
-void	       lua_endblock		(int block);
+void	       lua_beginblock		(void);
+void	       lua_endblock		(void);
 
 lua_Object     lua_getparam 		(int number);
 #define	       lua_getresult(_)		lua_getparam(_)
@@ -63,14 +63,17 @@ lua_Object     lua_getsubscript         (void);
 
 int            lua_type 		(lua_Object object);
 
-int	       lua_lock			(lua_Object object);
+int	       lua_lock			(void);
 lua_Object     lua_getlocked		(int ref);
 void	       lua_unlock		(int ref);
 
-lua_Object     lua_createTable		(int initSize);
+lua_Object     lua_createtable		(int initSize);
+
 
 /* for lua 1.1 */
 
+#define lua_lockobject(o)  (lua_pushobject(o), lua_lock())
+
 #define lua_register(n,f)	(lua_pushcfunction(f), lua_storeglobal(n))
 
 #define lua_getindexed(o,n) (lua_pushobject(o), lua_pushnumber(n), lua_getsubscript())

opcode.c

@@ -3,7 +3,7 @@
 ** TecCGraf - PUC-Rio
 */
 
-char *rcs_opcode="$Id: opcode.c,v 3.16 1994/11/17 19:43:34 roberto Exp roberto $";
+char *rcs_opcode="$Id: opcode.c,v 3.17 1994/11/17 21:23:43 roberto Exp roberto $";
 
 #include <setjmp.h>
 #include <stdio.h>
@@ -436,21 +436,33 @@ lua_Object lua_getsubscript (void)
     return 0;
 }
 
+
+#define MAX_C_BLOCKS 10
+
+static int numCblocks = 0;
+static int Cblocks[MAX_C_BLOCKS];
+
 /*
 ** API: starts a new block
 */
-int lua_beginblock (void)
+void lua_beginblock (void)
 {
-  return CBase;
+  if (numCblocks < MAX_C_BLOCKS)
+    Cblocks[numCblocks] = CBase;
+  numCblocks++;
 }
 
 /*
 ** API: ends a block
 */
-void lua_endblock (int block)
+void lua_endblock (void)
 {
-  CBase = block;
+  --numCblocks;
+  if (numCblocks < MAX_C_BLOCKS)
+  {
+    CBase = Cblocks[numCblocks];
     adjustC(0);
+  }
 }
 
 /* 
@@ -468,7 +480,7 @@ int lua_storesubscript (void)
 /*
 ** API: creates a new table
 */
-lua_Object lua_createTable (int initSize)
+lua_Object lua_createtable (int initSize)
 {
   adjustC(0);
   avalue(top) = lua_createarray(initSize);
@@ -550,6 +562,14 @@ lua_Object lua_getlocked (int ref)
  return Ref(top-1);
 }
 
+
+int lua_lock (void)
+{
+  adjustC(1);
+  return luaI_lock(--top);
+}
+
+
 /*
 ** Get a global object. Return the object handle or NULL on error.
 */