private void RemoveExpiredInstanceContexts()
{
try
{
while (true)
{
lock (SyncRoot)
{
List <SharedInstanceContextInfo> toRemove = new List <SharedInstanceContextInfo>();
foreach (var key in this.instanceContexts.Keys)
{
InstanceContext context = this.instanceContexts[key];
SharedInstanceContextInfo info = context.Extensions.Find <SharedInstanceContextInfo>();
toRemove.Add(info);
}
foreach (var info in toRemove)
{
if (info.IsExpired())
{
info.DecrementBusyCount(); // let it get to 0
}
}
}
Thread.CurrentThread.Join(1000); // check again in 1 second
}
}
catch (ThreadAbortException) { }
}
