/// <summary>
/// Method executes when smart control point notices that
/// a upnp media server has left the network.
/// </summary>
/// <param name="sender"></param>
/// <param name="device"></param>
private void RemoveServer(UPnPSmartControlPoint sender, UPnPDevice device)
{
string udn = device.UniqueDeviceName;
CpMediaServer removeThis = null;
lock (LockHashes)
{
if (UdnToInitStatus.Contains(udn))
{
InitStatus status = (InitStatus)UdnToInitStatus[udn];
}
if (UdnToServer.Contains(udn))
{
removeThis = (CpMediaServer)UdnToServer[udn];
UdnToServer.Remove(udn);
}
}
if (this.OnServerGone != null)
{
this.OnServerGone(this, device);
}
if (removeThis != null)
{
if (this.OnCpServerRemoved != null)
{
this.OnCpServerRemoved(this, removeThis);
}
}
System.GC.Collect();
}
/// <summary>
/// Whenever Sink_Onxxx method executes, it calls this method to
/// determine whether a server has been upgraded from non-good
/// to good status.
/// </summary>
/// <param name="udn"></param>
private void ProcessInitStatusChange(string udn)
{
CpMediaServer addedThis = null;
InitStatus status = null;
lock (LockHashes)
{
status = (InitStatus)UdnToInitStatus[udn];
if (status != null)
{
if (status.ZeroMeansDone == 0)
{
if (
(status.EventedCD) &&
(status.EventedCM) &&
(status.SubcribeCD) &&
(status.SubcribeCM)
)
{
// We were evented for both services
// and we subscribed successfully,
// so we're good to go.
UdnToInitStatus.Remove(udn);
UdnToServer[udn] = status.Server;
addedThis = status.Server;
}
else
{
// we didn't subscribe successfully
// or we never got evented after
// we subscribed... but this
// code should never execute because
// we will have never decremented
// ZeroMeansDone==0
}
}
if (addedThis == null)
{
if (BadServersAreGoodServersToo)
{
// but since we're configured to be
// nice to crappy servers that
// don't event properly... we'll
// promote the server to full status
UdnToInitStatus.Remove(udn);
UdnToServer[udn] = status.Server;
addedThis = status.Server;
}
}
}
}
if (addedThis != null)
{
if (this.OnCpServerAdded != null)
{
this.OnCpServerAdded(this, addedThis);
}
}
}
