65 lines
2.3 KiB
C#
65 lines
2.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Linq;
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using System.Reflection;
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using System.Security.Permissions;
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using System.Web;
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namespace System.Web.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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private long _lastReportedSize; // This helps tremendously when looking at large dumps
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internal SRef(Object target) {
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_sizedRef = HttpRuntime.CreateNonPublicInstance(s_type, new object[] {target});
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}
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internal long ApproximateSize {
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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 _lastReportedSize = (long) o;
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}
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}
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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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internal class SRefMultiple {
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private List<SRef> _srefs = new List<SRef>();
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internal void AddSRefTarget(Object o) {
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_srefs.Add(new SRef(o));
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}
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internal long ApproximateSize {
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[PermissionSet(SecurityAction.Assert, Unrestricted = true)]
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get {
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return _srefs.Sum(s => s.ApproximateSize);
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}
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}
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[PermissionSet(SecurityAction.Assert, Unrestricted = true)]
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internal void Dispose() {
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foreach (SRef s in _srefs) {
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s.Dispose();
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}
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}
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}
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}
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