libgit2
diff --git a/‎LibGit2Sharp/Core/Handles/Libgit2Object.cs
Lines changed: 73 additions & 0 deletions b/‎LibGit2Sharp/Core/Handles/Libgit2Object.cs
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+using System;
+
+namespace LibGit2Sharp.Core.Handles
+{
+    internal unsafe abstract class Libgit2Object : IDisposable
+    {
+        protected void* ptr;
+
+        internal void* Handle
+        {
+            get
+            {
+                return ptr;
+            }
+        }
+
+        bool owned;
+        bool disposed;
+
+        internal unsafe Libgit2Object(void* handle, bool owned)
+        {
+            this.ptr = handle;
+            this.owned = owned;
+        }
+
+        internal unsafe Libgit2Object(IntPtr ptr, bool owned)
+        {
+            this.ptr = ptr.ToPointer();
+            this.owned = owned;
+        }
+
+        ~Libgit2Object()
+        {
+            Dispose(false);
+        }
+
+        internal bool IsNull
+        {
+            get
+            {
+                return ptr == null;
+            }
+        }
+
+        internal IntPtr AsIntPtr()
+        {
+            return new IntPtr(ptr);
+        }
+
+        public abstract void Free();
+
+        void Dispose(bool disposing)
+        {
+            if (!disposed)
+            {
+                if (owned)
+                {
+                    Free();
+                }
+
+                ptr = null;
+            }
+
+            disposed = true;
+        }
+
+            public void Dispose()
+        {
+            Dispose(true);
+        }
+    }
+}
+