/// <summary>Add a client.</summary>
private void AddClient(DFSClient dfsc)
{
lock (this)
{
foreach (DFSClient c in dfsclients)
{
if (c == dfsc)
{
//client already exists, nothing to do.
return;
}
}
//client not found, add it
dfsclients.AddItem(dfsc);
//update renewal time
if (dfsc.GetHdfsTimeout() > 0)
{
long half = dfsc.GetHdfsTimeout() / 2;
if (half < renewal)
{
this.renewal = half;
}
}
}
}
/// <summary>Close the given client.</summary>
internal virtual void CloseClient(DFSClient dfsc)
{
lock (this)
{
dfsclients.Remove(dfsc);
if (dfsclients.IsEmpty())
{
if (!IsRunning() || IsRenewerExpired())
{
LeaseRenewer.Factory.Instance.Remove(this);
return;
}
if (emptyTime == long.MaxValue)
{
//discover the first time that the client list is empty.
emptyTime = Time.MonotonicNow();
}
}
//update renewal time
if (renewal == dfsc.GetHdfsTimeout() / 2)
{
long min = HdfsConstants.LeaseSoftlimitPeriod;
foreach (DFSClient c in dfsclients)
{
if (c.GetHdfsTimeout() > 0)
{
long timeout = c.GetHdfsTimeout();
if (timeout < min)
{
min = timeout;
}
}
}
renewal = min / 2;
}
}
}
