issue #86 merge remaining bits of Lua 5.3.3 changes

include/lstate.h

@@ -1,5 +1,5 @@
 /*
-** $Id: lstate.h,v 2.128 2015/11/13 12:16:51 roberto Exp $
+** $Id: lstate.h,v 2.130 2015/12/16 16:39:38 roberto Exp $
 ** Global State
 ** See Copyright Notice in lua.h
 */
@@ -33,6 +33,15 @@
 struct lua_longjmp;  /* defined in ldo.c */
 
 
+/*
+** Atomic type (relative to signals) to better ensure that 'lua_sethook' 
+** is thread safe
+*/
+#if !defined(l_signalT)
+#include <signal.h>
+#define l_signalT	sig_atomic_t
+#endif
+
 
 /* extra stack space to handle TM calls and some other extras */
 #define EXTRA_STACK   5
@@ -171,7 +180,7 @@ struct lua_State {
   struct lua_State *twups;  /* list of threads with open upvalues */
   struct lua_longjmp *errorJmp;  /* current error recover point */
   CallInfo base_ci;  /* CallInfo for first level (C calling Lua) */
-  lua_Hook hook;
+  volatile lua_Hook hook;
   ptrdiff_t errfunc;  /* current error handling function (stack index) */
   int stacksize;
   int basehookcount;

include/ltests.h

@@ -1,5 +1,5 @@
 /*
-** $Id: ltests.h,v 2.47 2014/12/26 14:44:44 roberto Exp $
+** $Id: ltests.h,v 2.49 2015/09/22 14:18:24 roberto Exp $
 ** Internal Header for Debugging of the Lua Implementation
 ** See Copyright Notice in lua.h
 */

include/lua.h

@@ -1,5 +1,5 @@
 /*
-** $Id: lua.h,v 1.329 2015/11/13 17:18:42 roberto Exp $
+** $Id: lua.h,v 1.331 2016/05/30 15:53:28 roberto Exp $
 ** Lua - A Scripting Language
 ** Lua.org, PUC-Rio, Brazil (http://www.lua.org)
 ** See Copyright Notice at the end of this file
@@ -19,11 +19,11 @@
 #define LUA_VERSION_MAJOR	"5"
 #define LUA_VERSION_MINOR	"3"
 #define LUA_VERSION_NUM		503
-#define LUA_VERSION_RELEASE	"2"
+#define LUA_VERSION_RELEASE	"3"
 
 #define LUA_VERSION	"Ravi " LUA_VERSION_MAJOR "." LUA_VERSION_MINOR
 #define LUA_RELEASE	LUA_VERSION "." LUA_VERSION_RELEASE
-#define LUA_COPYRIGHT	LUA_RELEASE "\nCopyright (C) 1994-2015 Lua.org, PUC-Rio\nPortions Copyright (C) 2015 Dibyendu Majumdar"
+#define LUA_COPYRIGHT	LUA_RELEASE "\nCopyright (C) 1994-2016 Lua.org, PUC-Rio\nPortions Copyright (C) 2015-2016 Dibyendu Majumdar"
 #define LUA_AUTHORS	"R. Ierusalimschy, L. H. de Figueiredo, W. Celes, Dibyendu Majumdar"
 
 
@@ -544,7 +544,7 @@ LUA_API void ravi_set_debuglevel(int level);
 
 
 /******************************************************************************
-* Copyright (C) 1994-2015 Lua.org, PUC-Rio.
+* Copyright (C) 1994-2016 Lua.org, PUC-Rio.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the

include/lvm.h

@@ -1,5 +1,5 @@
 /*
-** $Id: lvm.h,v 2.39 2015/09/09 13:44:07 roberto Exp $
+** $Id: lvm.h,v 2.40 2016/01/05 16:07:21 roberto Exp $
 ** Lua virtual machine
 ** See Copyright Notice in lua.h
 */
@@ -49,25 +49,24 @@
 
 
 /*
-** fast track for 'gettable': 1 means 'aux' points to resulted value;
-** 0 means 'aux' is metamethod (if 't' is a table) or NULL. 'f' is
-** the raw get function to use.
+** fast track for 'gettable': if 't' is a table and 't[k]' is not nil,
+** return 1 with 'slot' pointing to 't[k]' (final result).  Otherwise,
+** return 0 (meaning it will have to check metamethod) with 'slot'
+** pointing to a nil 't[k]' (if 't' is a table) or NULL (otherwise).
+** 'f' is the raw get function to use.
 */
-#define luaV_fastget(L,t,k,aux,f) \
+#define luaV_fastget(L,t,k,slot,f) \
   (!ttistable(t)  \
-   ? (aux = NULL, 0)  /* not a table; 'aux' is NULL and result is 0 */  \
-   : (aux = f(hvalue(t), k),  /* else, do raw access */  \
-      !ttisnil(aux) ? 1  /* result not nil? 'aux' has it */  \
-      : (aux = fasttm(L, hvalue(t)->metatable, TM_INDEX),  /* get metamethod */\
-         aux != NULL  ? 0  /* has metamethod? must call it */  \
-         : (aux = luaO_nilobject, 1))))  /* else, final result is nil */
+   ? (slot = NULL, 0)  /* not a table; 'slot' is NULL and result is 0 */  \
+   : (slot = f(hvalue(t), k),  /* else, do raw access */  \
+      !ttisnil(slot)))  /* result not nil? */
 
 /*
 ** standard implementation for 'gettable'
 */
-#define luaV_fastgettable(L,t,k,v) { const TValue *aux; \
-  if (luaV_fastget(L,t,k,aux,luaH_get)) { setobj2s(L, v, aux); } \
-  else luaV_finishget(L,t,k,v,aux); }
+#define luaV_fastgettable(L,t,k,v) { const TValue *slot; \
+  if (luaV_fastget(L,t,k,slot,luaH_get)) { setobj2s(L, v, slot); } \
+  else luaV_finishget(L,t,k,v,slot); }
 
 
 /*
@@ -105,18 +104,19 @@ LUAI_FUNC void luaV_gettable (lua_State *L, const TValue *t, TValue *key,
 LUAI_FUNC void luaV_settable (lua_State *L, const TValue *t, TValue *key,
                                             StkId val);
 LUAI_FUNC void luaV_finishget (lua_State *L, const TValue *t, TValue *key,
-                               StkId val, const TValue *tm);
+                               StkId val, const TValue *slot);
 LUAI_FUNC void luaV_finishset (lua_State *L, const TValue *t, TValue *key,
-                               StkId val, const TValue *oldval);
+                               StkId val, const TValue *slot);
 LUAI_FUNC void luaV_finishOp (lua_State *L);
+/* The int return value is a Ravi extension */
 LUAI_FUNC int luaV_execute (lua_State *L);
 LUAI_FUNC void luaV_concat (lua_State *L, int total);
 LUAI_FUNC lua_Integer luaV_div (lua_State *L, lua_Integer x, lua_Integer y);
 LUAI_FUNC lua_Integer luaV_mod (lua_State *L, lua_Integer x, lua_Integer y);
 LUAI_FUNC lua_Integer luaV_shiftl (lua_Integer x, lua_Integer y);
 LUAI_FUNC void luaV_objlen (lua_State *L, StkId ra, const TValue *rb);
 
-// RAVI changes
+/* RAVI changes for JIT */
 
 LUAI_FUNC int luaV_forlimit(const TValue *obj, lua_Integer *p, lua_Integer step,
   int *stopnow);