/// <summary>
/// Adds the specified item.
/// </summary>
/// <param name="item">The item.</param>
/// <returns>Returns the position where the item was added.</returns>
public int Add(T item)
{
var index = Interlocked.Increment(ref _index) & (_capacity - 1);
bool isNew;
_bucket.Set(index, item, out isNew);
return(index);
}
/// <summary>
/// Sets the value associated with the specified key.
/// </summary>
/// <param name="key">The key.</param>
/// <param name="value">The value.</param>
/// <param name="offset">The offset from the default index.</param>
/// <param name="isNew">if set to <c>true</c> the key was not present before.</param>
/// <returns>The index where the value was set; -1 otherwise.</returns>
public int Set(TKey key, TValue value, int offset, out bool isNew)
{
int index = Index(key, offset);
KeyValuePair <TKey, TValue> oldEntry;
isNew = !_entries.TryGet(index, out oldEntry);
if ((isNew || _keyComparer.Equals(key, oldEntry.Key)) && _entries.Set(index, new KeyValuePair <TKey, TValue>(key, value), out isNew))
{
return(index);
}
else
{
return(-1);
}
}
//Hack
internal int Set(T item, int offset, out bool isNew)
{
int index = Index(item, offset);
T oldEntry;
isNew = !_entries.TryGet(index, out oldEntry);
if ((isNew || _comparer.Equals(item, oldEntry)) && _entries.Set(index, item, out isNew))
{
return(index);
}
else
{
return(-1);
}
}
//HACK
internal bool Set(int index, T item, out bool isNew)
{
if (_bucket.Set(index, item, out isNew))
{
if (isNew)
{
Interlocked.Increment(ref _preCount);
}
return(true);
}
else
{
return(false);
}
}
protected static void Root(Timeout timeout)
{
timeout._rootIndex = Interlocked.Increment(ref _lastRootIndex);
_root.Set(timeout._rootIndex, timeout);
}
protected static void Root(RootedTimeout rootedTimeout)
{
rootedTimeout._rootIndex = Interlocked.Increment(ref _lastRootIndex);
_root.Set(rootedTimeout._rootIndex, rootedTimeout);
}
/// <summary>
/// Sets the item at the specified index.
/// </summary>
/// <param name="index">The index.</param>
/// <param name="item">The item.</param>
/// <param name="isNew">if set to <c>true</c> the index was not previously used.</param>
/// <returns>
/// <c>true</c> if the item was set; otherwise, <c>false</c>.
/// </returns>
/// <exception cref="System.ArgumentOutOfRangeException">index;index must be greater or equal to 0 and less than capacity</exception>
public bool Set(int index, T item, out bool isNew)
{
return(_wrapped.Set(index, item, out isNew));
}
