コード例 #1
0
        /// <summary>
        ///     Decrements the refcount for the given item. Releases the item if its refcount reaches zero.
        /// </summary>
        /// <remarks>This method is thread-safe.</remarks>
        /// <param name="item">The item to release.</param>
        public void Release([CanBeNull] TItem item)
        {
            if (ReferenceEquals(item, null))
            {
                return;
            }

            ItemRefCount itemRef;

            if (_refs.TryGetValue(item, out itemRef))
            {
                lock (itemRef) {
                    if (itemRef.Count > 0)
                    {
                        itemRef.Dec();
                        Decremented.Call(item);
                        ItemRefCount removedRef;
                        if (itemRef.IsZero() && _refs.TryRemove(item, out removedRef))
                        {
                            Released.Call(item);
                        }
                    }
                }
            }
        }
コード例 #2
0
 /// <summary> Sets refcount to zero for all retained items and releases them. </summary>
 /// <remarks>This method is thread-safe.</remarks>
 public void Clear()
 {
     foreach (var refKvp in _refs)
     {
         ItemRefCount itemRef;
         if (_refs.TryRemove(refKvp.Key, out itemRef))
         {
             itemRef.SetToZero();
             Decremented.Call(refKvp.Key);
             Released.Call(refKvp.Key);
         }
     }
 }