public void OnReferenceDisposed()
{
string removeSopInstanceUid = null;
lock (_syncLock)
{
if (_referenceCount > 0)
{
--_referenceCount;
}
if (_referenceCount == 0)
{
_referenceCount = -1;
GC.SuppressFinalize(this);
removeSopInstanceUid = _realDataSource.SopInstanceUid;
try
{
_realDataSource.Dispose();
}
catch (Exception e)
{
Platform.Log(LogLevel.Debug, e);
}
}
}
if (removeSopInstanceUid != null)
{
Remove(removeSopInstanceUid);
}
}
/// <summary>
/// Disposes all resources being used by this <see cref="Sop"/>.
/// </summary>
/// <param name="disposing"></param>
protected virtual void Dispose(bool disposing)
{
if (disposing && _dataSource != null)
{
_dataSource.Dispose();
_dataSource = null;
}
}
protected override void Dispose(bool disposing)
{
if (_sopDataSource != null)
{
_sopDataSource.Dispose();
_sopDataSource = null;
}
base.Dispose(disposing);
}
public static ISopDataCacheItemReference Add(ISopDataSource dataSource)
{
lock (_itemsLock)
{
CleanupDeadItems();
WeakReference weakReference = null;
Item item = null;
if (_items.ContainsKey(dataSource.SopInstanceUid))
{
weakReference = _items[dataSource.SopInstanceUid];
try
{
item = weakReference.Target as Item;
}
catch (InvalidOperationException)
{
weakReference = null;
item = null;
}
}
if (weakReference == null)
{
weakReference = new WeakReference(null);
_items[dataSource.SopInstanceUid] = weakReference;
}
if (item != null && weakReference.IsAlive)
{
if (!ReferenceEquals(item.RealDataSource, dataSource))
{
dataSource.Dispose(); //silently dispose the new one, we already have it.
}
}
else
{
item = new Item(dataSource);
weakReference.Target = item;
}
return(new ItemReference(item));
}
}
public static ISopDataCacheItemReference Add(ISopDataSource dataSource)
{
lock(_itemsLock)
{
CleanupDeadItems();
WeakReference weakReference = null;
Item item = null;
if (_items.ContainsKey(dataSource.SopInstanceUid))
{
weakReference = _items[dataSource.SopInstanceUid];
try
{
item = weakReference.Target as Item;
}
catch (InvalidOperationException)
{
weakReference = null;
item = null;
}
}
if (weakReference == null)
{
weakReference = new WeakReference(null);
_items[dataSource.SopInstanceUid] = weakReference;
}
if (item != null && weakReference.IsAlive)
{
if (!ReferenceEquals(item.RealDataSource, dataSource))
dataSource.Dispose(); //silently dispose the new one, we already have it.
}
else
{
item = new Item(dataSource);
weakReference.Target = item;
}
return new ItemReference(item);
}
}