From 3bced067a4144381e59ce4bd0eb749eeff5ad1f4 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Thu, 28 Mar 2019 08:56:15 +0800
Subject: *misc

---
 source/libs/asura-lib-utils/scripting/lua_env.h    | 56 ++++++++++++++++++++++
 source/libs/asura-lib-utils/scripting/portable.hpp |  7 +--
 2 files changed, 57 insertions(+), 6 deletions(-)
 create mode 100644 source/libs/asura-lib-utils/scripting/lua_env.h

(limited to 'source/libs/asura-lib-utils/scripting')

diff --git a/source/libs/asura-lib-utils/scripting/lua_env.h b/source/libs/asura-lib-utils/scripting/lua_env.h
new file mode 100644
index 0000000..a467479
--- /dev/null
+++ b/source/libs/asura-lib-utils/scripting/lua_env.h
@@ -0,0 +1,56 @@
+#ifndef __ASURA_LUA_ENV_H__
+#define __ASURA_LUA_ENV_H__
+
+extern "C"
+{
+#include <Lua51/lua.h>
+#include <Lua51/lauxlib.h>
+}
+#include <Luax/luax.h>
+
+#include "../singleton.hpp"
+
+namespace AsuraEngine
+{
+	namespace Scripting
+	{
+
+		///
+		/// 程序通过这个接口访问主lua state。
+		///
+		class LuaEnv ASURA_FINAL : public Singleton<LuaEnv>
+		{
+		public:
+
+			LuaEnv() : mMainState(0){};
+			~LuaEnv() {};
+
+			///
+			/// 设置主虚拟机的主执行栈。
+			///
+			inline void Init(lua_State* L) { ASSERT(!mMainState); mMainState = L; };
+
+			inline lua_State* GetMainState() { return mMainState; };
+
+		private:
+
+			///
+			/// 主线程保存一个主lua虚拟机。一个Asura程序永远只有一个主虚拟机，大部分代码都在这个虚拟机中运行，且只能设置一次。
+			/// 主线程\主执行栈对应的是global_State里面的：
+			///
+			///	    struct lua_State *mainthread;
+			///
+			/// 使用lua_newstate()，会创建一个虚拟机，包含一个global_State结构，并创建一个这个虚拟机的主线程lua_State并返回。
+			/// global_State由这个虚拟机的所有线程共享，除了第一个主线程由lua_newstate()创建外，其余线程由lua_newthread()
+			/// 创建。
+			///
+			lua_State* mMainState;
+
+		};
+
+	}
+}
+
+namespace AEScripting = AsuraEngine::Scripting;
+
+#endif
\ No newline at end of file
diff --git a/source/libs/asura-lib-utils/scripting/portable.hpp b/source/libs/asura-lib-utils/scripting/portable.hpp
index 097a9fe..5badf8d 100644
--- a/source/libs/asura-lib-utils/scripting/portable.hpp
+++ b/source/libs/asura-lib-utils/scripting/portable.hpp
@@ -3,12 +3,7 @@
 
 #include "../type.h"
 
-extern "C" 
-{
-	#include <Lua51/lua.h>
-	#include <Lua51/lauxlib.h>
-}
-#include <Luax/luax.h>
+#include "lua_env.h"
 
 namespace AsuraEngine
 {
-- 
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