1 files changed, 31 insertions, 0 deletions

diff --git a/src/lj_state.h b/src/lj_state.h
new file mode 100644
index 00000000..54e85405
--- /dev/null
+++ b/src/lj_state.h
@@ -0,0 +1,31 @@
+/*
+** State and stack handling.
+** Copyright (C) 2005-2009 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_STATE_H
+#define _LJ_STATE_H
+
+#include "lj_obj.h"
+
+#define incr_top(L) \
+  (++L->top >= L->maxstack && (lj_state_growstack1(L), 0))
+
+#define savestack(L, p)         ((char *)(p) - (char *)L->stack)
+#define restorestack(L, n)      ((TValue *)((char *)L->stack + (n)))
+
+LJ_FUNC void lj_state_relimitstack(lua_State *L);
+LJ_FUNC void lj_state_shrinkstack(lua_State *L, MSize used);
+LJ_FUNCA void lj_state_growstack(lua_State *L, MSize need);
+LJ_FUNCA void lj_state_growstack1(lua_State *L);
+
+static LJ_AINLINE void lj_state_checkstack(lua_State *L, MSize need)
+{
+  if ((MSize)((char *)L->maxstack-(char *)L->top) <= need*(MSize)sizeof(TValue))
+    lj_state_growstack(L, need);
+}
+
+LJ_FUNC lua_State *lj_state_new(lua_State *L);
+LJ_FUNC void LJ_FASTCALL lj_state_free(global_State *g, lua_State *L);
+
+#endif