global state for Lua interpreter

1 files changed, 52 insertions, 0 deletions

diff --git a/lstate.c b/lstate.c
new file mode 100644
index 00000000..653c4ba3
--- /dev/null
+++ b/lstate.c
@@ -0,0 +1,52 @@
+/*
+** $Id: $
+** Global State
+** See Copyright Notice in lua.h
+*/
+
+
+#include "lbuiltin.h"
+#include "ldo.h"
+#include "llex.h"
+#include "lmem.h"
+#include "lstate.h"
+#include "lstring.h"
+#include "ltable.h"
+#include "ltm.h"
+
+
+LState *lua_state = NULL;
+
+
+void lua_open (void)
+{
+  if (lua_state) return;
+  lua_state = luaM_new(LState);
+  L->numCblocks = 0;
+  L->Cstack.base = 0;
+  L->Cstack.lua2C = 0;
+  L->Cstack.num = 0;
+  L->errorJmp = NULL;
+  L->rootproto.next = NULL;
+  L->rootproto.marked = 0;
+  L->rootcl.next = NULL;
+  L->rootcl.marked = 0;
+  L->rootglobal.next = NULL;
+  L->rootglobal.marked = 0;
+  L->roottable.next = NULL;
+  L->roottable.marked = 0;
+  L->refArray = NULL;
+  L->refSize = 0;
+  L->Mbuffsize = 0;
+  L->Mbuffer = NULL;
+  L->GCthreshold = GARBAGE_BLOCK;
+  L->nblocks = 0;
+  luaD_init();
+  luaS_init();
+  luaX_init();
+  luaT_init();
+  L->globalbag.ttype = LUA_T_ARRAY;
+  L->globalbag.value.a = luaH_new(0);
+  luaB_predefine();
+}
+