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//
// System.Runtime.Remoting.Identity.cs
//
// Author: Lluis Sanchez Gual (lluis@ideary.com)
//
// (C) 2003, Lluis Sanchez Gual
//
//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Threading;
using System.Collections;
using System.Runtime.Remoting;
namespace System.Runtime.Remoting.Lifetime
{
internal class LeaseManager
{
ArrayList _objects = new ArrayList();
Timer _timer = null;
public void SetPollTime (TimeSpan timeSpan)
{
lock (_objects.SyncRoot)
{
if (_timer != null)
_timer.Change (timeSpan,timeSpan);
}
}
public void TrackLifetime (ServerIdentity identity)
{
lock (_objects.SyncRoot)
{
identity.Lease.Activate();
_objects.Add (identity);
if (_timer == null) StartManager();
}
}
public void StopTrackingLifetime (ServerIdentity identity)
{
lock (_objects.SyncRoot)
{
_objects.Remove (identity);
}
}
public void StartManager()
{
_timer = new Timer (new TimerCallback (ManageLeases), null, LifetimeServices.LeaseManagerPollTime,LifetimeServices.LeaseManagerPollTime);
}
public void StopManager()
{
Timer t = _timer;
_timer = null;
if (t != null) t.Dispose();
}
public void ManageLeases(object state)
{
lock (_objects.SyncRoot)
{
int n=0;
while (n < _objects.Count)
{
ServerIdentity ident = (ServerIdentity)_objects[n];
ident.Lease.UpdateState();
if (ident.Lease.CurrentState == LeaseState.Expired)
{
_objects.RemoveAt (n);
ident.OnLifetimeExpired ();
}
else
n++;
}
if (_objects.Count == 0)
StopManager();
}
}
}
}
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