private bool disposedValue = false; // To detect redundant calls
protected virtual void Dispose(bool disposing)
{
if (!disposedValue)
{
if (disposing)
{
_stopEvent.Set();
_scanThread.Join((int)(_scanInterval.TotalMilliseconds * 100)); //x3 is enough... x100 is safe and of same effect as x3
_stopEvent.Dispose();
List <AutoTimeoutObject> expired = new List <AutoTimeoutObject>();
foreach (var aot in _con.Values)
{
expired.Add(aot);
}
foreach (var ee in expired)
{
AutoTimeoutObject aot = null;
_con.TryRemove(ee.Id, out aot);
ee.Dispose();
}
}
// TODO: free unmanaged resources (unmanaged objects) and override a finalizer below.
// TODO: set large fields to null.
disposedValue = true;
}
}
public Guid Add(object obj, bool longLived = false, TimeSpan?life = null, Action <object> disposeAction = null)
{
AutoTimeoutObject ato = new AutoTimeoutObject
{
Id = Guid.NewGuid(),
Object = obj,
DisposeAction = disposeAction,
Age = TimeSpan.FromMilliseconds(0), //in sec
Life = life ?? _defaultLife, //in sec
LongLived = longLived
};
_con.TryAdd(ato.Id, ato);
return(ato.Id);
}
public T Delete <T>(Guid id)
{
AutoTimeoutObject aot = null;
AutoTimeoutObject res = null;
_con.TryRemove(id, out aot);
if (null != aot)
{
lock (aot)
{
if (aot.LongLived || aot.Age < aot.Life)
{
aot.Age = TimeSpan.FromMilliseconds(0);
res = aot;
}
}
}
return((T)(res?.Object));
}
private void Scan()
{
//object state
// - not expired, hence must be in container
// - expired, but still in container
// - expired, and removed from container
for (;;)
{
bool stop = _stopEvent.WaitOne(_scanInterval);
if (stop)
{
break;
}
List <AutoTimeoutObject> expired = new List <AutoTimeoutObject>();
foreach (var aot in _con.Values)
{
bool isExpired = false;
lock (aot)
{
aot.Age += _scanInterval;
isExpired = !aot.LongLived && (aot.Age >= aot.Life);
}
if (isExpired)
{
expired.Add(aot);
}
}
foreach (var ee in expired)
{
AutoTimeoutObject aot = null;
_con.TryRemove(ee.Id, out aot);
ee.Dispose();
}
}
}
