46 lines
1.1 KiB
C#
46 lines
1.1 KiB
C#
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#region Using Statements
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using System;
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using System.Runtime.InteropServices;
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#endregion
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// This file is part of the ANX.Framework created by the
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// "ANX.Framework developer group" and released under the Ms-PL license.
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// For details see: http://anxframework.codeplex.com/license
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namespace ANX.Framework.NonXNA
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{
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internal class HashHelper
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{
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public unsafe static int GetGCHandleHashCode(object obj)
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{
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int result = 0;
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GCHandle handle = GCHandle.Alloc(obj, GCHandleType.Pinned);
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try
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{
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int objSize = Marshal.SizeOf(obj);
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int* ptr = (int*)handle.AddrOfPinnedObject().ToPointer();
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for (int i = 4; i <= objSize; i += 4)
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{
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result ^= *ptr;
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ptr++;
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}
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if (result <= 0)
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{
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result = int.MaxValue;
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}
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}
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finally
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{
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handle.Free();
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}
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return result;
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}
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}
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}
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