/// <summary>
/// Releases all the work from the current <see cref="CrawlerWorkSource"/>,making it unavailable.
/// </summary>
public void DisposeSource()
{
IsSourceReleased = true;
if (workSourceScheduler != null)
{
workSourceScheduler.Stop();
workSourceScheduler = null;
}
ManualResetEvent handle;
while (freeCrawlers.TryDequeue(out handle))
{
handle.Set();
}
availableWork = new ConcurrentQueue <IWork>();
}