52 lines
2.1 KiB
C#
52 lines
2.1 KiB
C#
// <copyright file="SRef.cs" company="Microsoft">
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// Copyright (c) 2009 Microsoft Corporation. All rights reserved.
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// </copyright>
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using System;
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using System.Globalization;
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using System.Reflection;
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using System.Security;
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using System.Security.Permissions;
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using System.Diagnostics.CodeAnalysis;
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namespace System.Runtime.Caching {
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internal class SRef {
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private static Type s_type = Type.GetType("System.SizedReference", true, false);
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private Object _sizedRef;
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internal SRef(Object target) {
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_sizedRef = Activator.CreateInstance(s_type,
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BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.CreateInstance,
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null,
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new object[] { target },
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null);
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}
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internal long ApproximateSize {
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[SecuritySafeCritical]
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[PermissionSet(SecurityAction.Assert, Unrestricted = true)]
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get {
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object o = s_type.InvokeMember("ApproximateSize",
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BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty,
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null, // binder
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_sizedRef, // target
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null, // args
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CultureInfo.InvariantCulture);
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return (long)o;
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}
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}
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//
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[SuppressMessage("Microsoft.Security", "CA2106:SecureAsserts", Justification = "Grandfathered suppression from original caching code checkin")]
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[SecuritySafeCritical]
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[PermissionSet(SecurityAction.Assert, Unrestricted = true)]
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internal void Dispose() {
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s_type.InvokeMember("Dispose",
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BindingFlags.Public | BindingFlags.Instance | BindingFlags.InvokeMethod,
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null, // binder
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_sizedRef, // target
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null, // args
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CultureInfo.InvariantCulture);
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}
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}
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}
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