private void HandleItem(object ignored)
{
WorkItem item = null;
try
{
lock (_callbacks)
{
if (_callbacks.Count > 0)
{
item = _callbacks.First.Value;
_callbacks.RemoveFirst();
}
if (item == null)
return;
_threads.Add(item, Thread.CurrentThread);
}
ExecutionContext.Run(item.Context,
delegate { item.Callback(item.State); }, null);
}
finally
{
lock (_callbacks)
{
if (item != null)
_threads.Remove(item);
}
}
}