ScavengeKeys()

void System.ComponentModel.WeakHashtable.ScavengeKeys ( )

inlineprivate

Definition at line 91 of file WeakHashtable.cs.

    {
        int count = Count;
        if (count == 0)
        {
            return;
        }
        if (_lastHashCount == 0)
        {
            _lastHashCount = count;
            return;
        }
        long totalMemory = GC.GetTotalMemory(forceFullCollection: false);
        if (_lastGlobalMem == 0L)
        {
            _lastGlobalMem = totalMemory;
            return;
        }
        float num = (float)(totalMemory - _lastGlobalMem) / (float)_lastGlobalMem;
        float num2 = (float)(count - _lastHashCount) / (float)_lastHashCount;
        if (num < 0f && num2 >= 0f)
        {
            List<object> list = null;
            foreach (object key in Keys)
            {
                if (key is WeakReference { IsAlive: false } weakReference)
                {
                    if (list == null)
                    {
                        list = new List<object>();
                    }
                    list.Add(weakReference);
                }
            }
            if (list != null)
            {
                foreach (object item in list)
                {
                    Remove(item);
                }
            }
        }
        _lastGlobalMem = totalMemory;
        _lastHashCount = count;
    }

References System.ComponentModel.WeakHashtable._lastGlobalMem, System.ComponentModel.WeakHashtable._lastHashCount, System.count, System.Collections.Hashtable.Count, System.GC.GetTotalMemory(), System.item, System.key, System.Collections.Hashtable.Keys, System.L, System.list, and System.ComponentModel.Remove.

Referenced by System.ComponentModel.WeakHashtable.SetWeak().