diff --git a/a8/orderbuffer.cc b/a8/orderbuffer.cc
new file mode 100644
index 0000000..599f26d
--- /dev/null
+++ b/a8/orderbuffer.cc
@@ -0,0 +1,28 @@
+#include <a8/a8.h>
+
+#include <a8/orderbuffer.h>
+
+namespace a8
+{
+
+    OrderBuffer::OrderBuffer(int buf_len)
+    {
+
+    }
+
+    OrderBuffer::~OrderBuffer()
+    {
+
+    }
+
+    char* OrderBuffer::Alloc(int len)
+    {
+
+    }
+
+    void OrderBuffer::Free(char* p)
+    {
+
+    }
+
+}
diff --git a/a8/orderbuffer.h b/a8/orderbuffer.h
new file mode 100644
index 0000000..d1923a4
--- /dev/null
+++ b/a8/orderbuffer.h
@@ -0,0 +1,21 @@
+#pragma once
+
+namespace a8
+{
+
+    class OrderBuffer
+    {
+    public:
+
+        OrderBuffer(int buf_len);
+        ~OrderBuffer();
+
+        char* Alloc(int len);
+        void Free(char* p);
+
+    private:
+        char* buf_ = nullptr;
+        int buf_len_ = 0;
+    };
+
+}