/// <summary> Register a LoadBalancerListener with this LoadBalancer. The listener will
/// be called when the free pool is empty and subsequently contains at least
/// two Batons (or one Baton if this LoadBalancer was defined to have a pool
/// size of one).
/// </summary>
public virtual void AddLoadBalancerListener(ILoadBalancerListener listener)
{
if (fListeners == null)
{
fListeners = new ArrayList();
}
fListeners.Add(listener);
}
/// <summary> Remove a LoadBalancerListener previously registered with the <c>
/// addLoadBalancerListener</c> method
/// </summary>
public virtual void removeLoadBalancerListener(ILoadBalancerListener listener)
{
if (fListeners != null)
{
if (fListeners.Contains(listener))
{
fListeners.Remove(listener);
}
}
}
/// <summary> Check-in a Baton.</summary>
public virtual void CheckinBaton(Baton baton)
{
if (baton != null)
{
lock (fPool.SyncRoot) {
fPool.Push(baton);
if (TRACE)
{
Console.Out.WriteLine("Baton checked in; there are now " + fPool.Count);
}
if (fEmptied && fPool.Count >= (fSize == 1 ? 1 : 2))
{
if (TRACE)
{
Console.Out.WriteLine
("Notifying listeners that batons are now available");
}
// Notify all listeners that Batons are once again available
fEmptied = false;
if (fListeners != null)
{
lock (fListeners.SyncRoot) {
for (int i = 0; i < fListeners.Count; i++)
{
ILoadBalancerListener l = (ILoadBalancerListener)fListeners[i];
l.OnBatonsAvailable(this);
}
}
}
}
try {
// Notify all waiting threads that a Baton is available
if (TRACE)
{
Console.Out.WriteLine
("Notifying threads that baton is returned to free pool");
}
Monitor.PulseAll(fPool);
}
catch (Exception) {}
}
}
}
/// <summary> Remove a LoadBalancerListener previously registered with the <c>
/// addLoadBalancerListener</c> method
/// </summary>
public virtual void removeLoadBalancerListener( ILoadBalancerListener listener )
{
if ( fListeners != null ) {
if ( fListeners.Contains( listener ) ) {
fListeners.Remove( listener );
}
}
}
/// <summary> Register a LoadBalancerListener with this LoadBalancer. The listener will
/// be called when the free pool is empty and subsequently contains at least
/// two Batons (or one Baton if this LoadBalancer was defined to have a pool
/// size of one).
/// </summary>
public virtual void AddLoadBalancerListener( ILoadBalancerListener listener )
{
if ( fListeners == null ) {
fListeners = new ArrayList();
}
fListeners.Add( listener );
}
