public bool TryRemove(T item)
{
var hashcode = this._comparer.GetHashCode(item);
while (true)
{
var tables = this._tables;
ConcurrentHashSet <T> .GetBucketAndLockNo(hashcode, out var bucketNo, out var lockNo, tables.Buckets.Length, tables.Locks.Length);
lock (tables.Locks[lockNo]) {
// If the table just got resized, we may not be holding the right lock, and must retry.
// This should be a rare occurrence.
if (tables != this._tables)
{
continue;
}
Node?previous = null;
for (var current = tables.Buckets[bucketNo]; current != null; current = current.Next)
{
Debug.Assert(previous == null && current == tables.Buckets[bucketNo] || previous !.Next == current);
if (hashcode == current.Hashcode && this._comparer.Equals(current.Item, item))
{
if (previous == null)
{
Volatile.Write(ref tables.Buckets[bucketNo], current.Next);
}
else
{
previous.Next = current.Next;
}
tables.CountPerLock[lockNo]--;
return(true);
}
previous = current;
}
}
return(false);
}
}
