From bc3c1a8ed6b1c2e6de1e32cf11d0fa342c7b463e Mon Sep 17 00:00:00 2001
From: Ged Murphy <gedmurphy@reactos.org>
Date: Mon, 30 Nov 2015 12:07:18 +0000
Subject: [PATCH] [ATL] - Implement CHandle

svn path=/trunk/; revision=70217
---
 reactos/lib/atl/atlbase.h | 74 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)

diff --git a/reactos/lib/atl/atlbase.h b/reactos/lib/atl/atlbase.h
index 675b96d8cb7..43fe6ca480a 100644
--- a/reactos/lib/atl/atlbase.h
+++ b/reactos/lib/atl/atlbase.h
@@ -232,6 +232,80 @@ public:
     }
 };
 
+
+class CHandle
+{
+public:
+    HANDLE m_handle;
+
+public:
+    CHandle() :
+        m_handle(NULL)
+    {
+    }
+
+    CHandle(_Inout_ CHandle& handle) :
+        m_handle(NULL)
+    {
+        Attach(handle.Detach());
+    }
+
+    explicit CHandle(_In_ HANDLE handle) :
+        m_handle(handle)
+    {
+    }
+
+    ~CHandle()
+    {
+        if (m_handle)
+        {
+            Close();
+        }
+    }
+
+    CHandle& operator=(_Inout_ CHandle& handle)
+    {
+        if (this != &handle)
+        {
+            if (m_handle)
+            {
+                Close();
+            }
+            Attach(handle.Detach());
+        }
+
+        return *this;
+    }
+
+    operator HANDLE() const
+    {
+        return m_handle;
+    }
+
+    void Attach(_In_ HANDLE handle)
+    {
+        ATLASSERT(m_handle == NULL);
+        m_handle = handle;
+    }
+
+    HANDLE Detach()
+    {
+        HANDLE handle = m_handle;
+        m_handle = NULL;
+        return handle;
+    }
+
+    void Close()
+    {
+        if (m_handle)
+        {
+            ::CloseHandle(m_handle);
+            m_handle = NULL;
+        }
+    }
+};
+
+
 inline BOOL WINAPI InlineIsEqualUnknown(REFGUID rguid1)
 {
    return (