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using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Reflection;
using System.Security.Permissions;
using System.Web;
namespace System.Web.Caching {
internal class SRef {
private static Type s_type = Type.GetType("System.SizedReference", true, false);
private Object _sizedRef;
private long _lastReportedSize; // This helps tremendously when looking at large dumps
internal SRef(Object target) {
_sizedRef = HttpRuntime.CreateNonPublicInstance(s_type, new object[] {target});
}
internal long ApproximateSize {
[PermissionSet(SecurityAction.Assert, Unrestricted=true)]
get {
object o = s_type.InvokeMember("ApproximateSize",
BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty,
null, // binder
_sizedRef, // target
null, // args
CultureInfo.InvariantCulture);
return _lastReportedSize = (long) o;
}
}
[PermissionSet(SecurityAction.Assert, Unrestricted=true)]
internal void Dispose() {
s_type.InvokeMember("Dispose",
BindingFlags.Public | BindingFlags.Instance | BindingFlags.InvokeMethod,
null, // binder
_sizedRef, // target
null, // args
CultureInfo.InvariantCulture);
}
}
internal class SRefMultiple {
private List<SRef> _srefs = new List<SRef>();
internal void AddSRefTarget(Object o) {
_srefs.Add(new SRef(o));
}
internal long ApproximateSize {
[PermissionSet(SecurityAction.Assert, Unrestricted = true)]
get {
return _srefs.Sum(s => s.ApproximateSize);
}
}
[PermissionSet(SecurityAction.Assert, Unrestricted = true)]
internal void Dispose() {
foreach (SRef s in _srefs) {
s.Dispose();
}
}
}
}
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