From 03b3b8ae80559745f98ef94569b421adddeb441f Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Mon, 25 Mar 2019 23:46:59 +0800
Subject: *misc

---
 source/libs/asura-lib-utils/io/data_buffer.cpp | 77 ++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 source/libs/asura-lib-utils/io/data_buffer.cpp

(limited to 'source/libs/asura-lib-utils/io/data_buffer.cpp')

diff --git a/source/libs/asura-lib-utils/io/data_buffer.cpp b/source/libs/asura-lib-utils/io/data_buffer.cpp
new file mode 100644
index 0000000..98675e9
--- /dev/null
+++ b/source/libs/asura-lib-utils/io/data_buffer.cpp
@@ -0,0 +1,77 @@
+#include <cstdlib>
+#include <cstring>
+#include "data_buffer.h"
+
+namespace AsuraEngine
+{
+	namespace IO
+	{
+
+		DataBuffer::DataBuffer(DataBuffer& src)
+		{
+			Load(src);
+		}
+
+		DataBuffer::DataBuffer(std::size_t size)
+			: mSize(size)
+			, mBytes(nullptr)
+		{
+			mBytes = new byte[size];
+			memset(mBytes, 0, size);
+		}
+
+		DataBuffer::DataBuffer(const void* data, std::size_t size)
+			: mSize(size)
+			, mBytes(nullptr)
+		{
+			Load(data, size);
+		}
+
+		DataBuffer::~DataBuffer()
+		{
+			delete[] mBytes;
+		}
+
+		void DataBuffer::Load(DataBuffer& db)
+		{
+			Load(db.GetData(), db.GetSize());
+		}
+
+		void DataBuffer::Load(const void* data, std::size_t size)
+		{
+			if (!mBytes || mSize != size)
+			{
+				delete[] mBytes;
+				mBytes = new byte[size];
+			}
+			memcpy(mBytes, data, size);
+		}
+
+		void DataBuffer::Move(void* bytes, std::size_t size)
+		{
+			if (!mBytes)
+			{
+				delete[] mBytes;
+			}
+			mBytes = (byte*)bytes;
+			mSize = size;
+		}
+
+		byte* DataBuffer::GetData()
+		{
+			return mBytes;
+		}
+
+		void DataBuffer::Clear()
+		{
+			if (mBytes)
+				memset(mBytes, 0, mSize);
+		}
+
+		std::size_t DataBuffer::GetSize()
+		{
+			return mSize;
+		}
+
+	}
+}
\ No newline at end of file
-- 
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