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53 lines
1.5 KiB
53 lines
1.5 KiB
5 years ago
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// Needed for Workaround
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#if !NET_4_6
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using System;
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using System.Threading;
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using LinqInternal.Collections.ThreadSafe;
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namespace LinqInternal.Threading
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{
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internal static partial class GCMonitor
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{
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private static class Internal
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{
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private static readonly WeakDelegateCollection _collectedEventHandlers;
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private static readonly WaitCallback _work;
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static Internal()
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{
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_work = _ => RaiseCollected();
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_collectedEventHandlers = new WeakDelegateCollection(false, false, _maxProbingHint);
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}
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public static WeakDelegateCollection CollectedEventHandlers
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{
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get { return _collectedEventHandlers; }
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}
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public static void Invoke()
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{
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ThreadPool.QueueUserWorkItem(_work);
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}
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private static void RaiseCollected()
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{
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var check = Volatile.Read(ref _status);
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if (check == _statusReady)
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{
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try
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{
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_collectedEventHandlers.RemoveDeadItems();
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_collectedEventHandlers.Invoke(null, new EventArgs());
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}
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catch (Exception exception)
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{
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// Catch'em all
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GC.KeepAlive(exception);
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}
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Volatile.Write(ref _status, _statusReady);
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}
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}
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}
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}
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}
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#endif
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