From 0c391fdbce5a079cf03e483eb6174dd47806163d Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Wed, 7 Aug 2019 21:08:47 +0800
Subject: *misc

---
 Source/modules/asura-base/FileSystem/DataBuffer.h | 87 +++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 Source/modules/asura-base/FileSystem/DataBuffer.h

(limited to 'Source/modules/asura-base/FileSystem/DataBuffer.h')

diff --git a/Source/modules/asura-base/FileSystem/DataBuffer.h b/Source/modules/asura-base/FileSystem/DataBuffer.h
new file mode 100644
index 0000000..ace372e
--- /dev/null
+++ b/Source/modules/asura-base/FileSystem/DataBuffer.h
@@ -0,0 +1,87 @@
+#ifndef _ASURA_ENGINE_DATABUFFER_H_
+#define _ASURA_ENGINE_DATABUFFER_H_
+
+#include <cstdlib>
+
+#include "../Scripting/Scripting.h"
+#include "../Threads/Mutex.h"
+
+namespace AsuraEngine
+{
+	namespace FileSystem
+	{
+
+		///
+		/// 对内存数据的封装，所有的数据使用Data buffer包装，不直接使用const void*。通过resource manager读取。
+		///
+		class DataBuffer ASURA_FINAL
+			: public AEScripting::Portable<DataBuffer>
+		{
+		public:
+
+			LUAX_DECL_FACTORY(DataBuffer);
+
+			DataBuffer(DataBuffer& src);
+			DataBuffer(std::size_t capacity);
+			DataBuffer(const void* bytes, std::size_t size);
+			~DataBuffer();
+
+			byte* GetData();
+			size_t GetSize();
+			size_t GetCapacity();
+
+			///
+			/// 修改容量，并清空
+			///
+			void Refactor(size_t capacity);
+
+			///
+			/// 拷贝数据源到此缓冲
+			///
+			void Load(DataBuffer& db);
+			void Load(const void* bytes, std::size_t size);
+
+			///
+			/// 绑定bytes，并拥有所有权，capacity为size
+			///
+			void Move(void* bytes, std::size_t size);
+
+			///
+			/// 清理缓冲
+			///
+			void Clear();
+
+			void Lock();
+			void Unlock();
+			
+		private:
+
+			LUAX_DECL_METHOD(_New);
+			LUAX_DECL_METHOD(_GetData);
+			LUAX_DECL_METHOD(_GetSize);
+			LUAX_DECL_METHOD(_GetCapacity);
+			LUAX_DECL_METHOD(_Refactor);
+			LUAX_DECL_METHOD(_Load);
+			LUAX_DECL_METHOD(_Clear);
+
+			///
+			/// Buffer首地址和里面数据的长度
+			///
+			byte* m_Bytes;
+			size_t m_Size;
+
+			///
+			/// Buffer容量。
+			///
+			size_t m_Capacity;
+
+			AEThreading::Mutex m_Mutex;
+
+		};
+
+	}
+}
+
+namespace AEFileSystem = AsuraEngine::FileSystem;
+
+#endif
\ No newline at end of file
-- 
cgit v1.1-26-g67d0