1 files changed, 0 insertions, 109 deletions
diff --git a/src/mscorlib/corefx/System/Runtime/InteropServices/SafeHeapHandle.cs b/src/mscorlib/corefx/System/Runtime/InteropServices/SafeHeapHandle.cs
deleted file mode 100644
index 92b3d980db..0000000000
--- a/src/mscorlib/corefx/System/Runtime/InteropServices/SafeHeapHandle.cs
+++ /dev/null
@@ -1,109 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-namespace System.Runtime.InteropServices
-{
-    /// <summary>
-    /// Handle for heap memory that allows tracking of capacity and reallocating.
-    /// </summary>
-    internal sealed class SafeHeapHandle : SafeBuffer
-    {
-        /// <summary>
-        /// Allocate a buffer of the given size if requested.
-        /// </summary>
-        /// <param name="byteLength">Required size in bytes. Must be less than UInt32.MaxValue for 32 bit or UInt64.MaxValue for 64 bit.</param>
-        /// <exception cref="OutOfMemoryException">Thrown if the requested memory size cannot be allocated.</exception>
-        /// <exception cref="ArgumentOutOfRangeException">Thrown if size is greater than the maximum memory size.</exception>
-        public SafeHeapHandle(ulong byteLength) : base(ownsHandle: true)
-        {
-            Resize(byteLength);
-        }
-
-        public override bool IsInvalid
-        {
-            get { return handle == IntPtr.Zero; }
-        }
-
-        /// <summary>
-        /// Resize the buffer to the given size if requested.
-        /// </summary>
-        /// <param name="byteLength">Required size in bytes. Must be less than UInt32.MaxValue for 32 bit or UInt64.MaxValue for 64 bit.</param>
-        /// <exception cref="OutOfMemoryException">Thrown if the requested memory size cannot be allocated.</exception>
-        /// <exception cref="ArgumentOutOfRangeException">Thrown if size is greater than the maximum memory size.</exception>
-        public void Resize(ulong byteLength)
-        {
-            if (IsClosed) throw new ObjectDisposedException(nameof(SafeHeapHandle));
-
-            ulong originalLength = 0;
-            if (handle == IntPtr.Zero)
-            {
-                handle = Marshal.AllocHGlobal((IntPtr)byteLength);
-            }
-            else
-            {
-                originalLength = ByteLength;
-
-                // This may or may not be the same handle, may realloc in place. If the
-                // handle changes Windows will deal with the old handle, trying to free it will
-                // cause an error.
-                handle = Marshal.ReAllocHGlobal(pv: handle, cb: (IntPtr)byteLength);
-            }
-
-            if (handle == IntPtr.Zero)
-            {
-                // Only real plausible answer
-                throw new OutOfMemoryException();
-            }
-
-            if (byteLength > originalLength)
-            {
-                // Add pressure
-                ulong addedBytes = byteLength - originalLength;
-                if (addedBytes > long.MaxValue)
-                {
-                    GC.AddMemoryPressure(long.MaxValue);
-                    GC.AddMemoryPressure((long)(addedBytes - long.MaxValue));
-                }
-                else
-                {
-                    GC.AddMemoryPressure((long)addedBytes);
-                }
-            }
-            else
-            {
-                // Shrank or did nothing, release pressure if needed
-                RemoveMemoryPressure(originalLength - byteLength);
-            }
-
-            Initialize(byteLength);
-        }
-
-        private void RemoveMemoryPressure(ulong removedBytes)
-        {
-            if (removedBytes == 0) return;
-
-            if (removedBytes > long.MaxValue)
-            {
-                GC.RemoveMemoryPressure(long.MaxValue);
-                GC.RemoveMemoryPressure((long)(removedBytes - long.MaxValue));
-            }
-            else
-            {
-                GC.RemoveMemoryPressure((long)removedBytes);
-            }
-        }
-
-        protected override bool ReleaseHandle()
-        {
-            if (handle != IntPtr.Zero)
-            {
-                RemoveMemoryPressure(ByteLength);
-                Marshal.FreeHGlobal(handle);
-            }
-
-            handle = IntPtr.Zero;
-            return true;
-        }
-    }
-}