public void Remove(Member m)
{
if (m.UniqueAddress.Equals(SelfUniqueAddress))
{
Context.Stop(Self);
}
else
{
MutateMemberInfo(false, () =>
{
Log.Debug("SBR remove [{0}]", m);
Strategy.Remove(m);
ResetReachabilityChangedStatsIfAllUnreachableDowned();
switch (releaseLeaseCondition)
{
case ReleaseLeaseCondition.WhenMembersRemoved rlc:
var remainingDownedNodes = rlc.Nodes.Remove(m.UniqueAddress);
if (remainingDownedNodes.IsEmpty)
{
releaseLeaseCondition =
new ReleaseLeaseCondition.WhenTimeElapsed(Deadline.Now + releaseLeaseAfter);
}
else
{
releaseLeaseCondition =
new ReleaseLeaseCondition.WhenMembersRemoved(remainingDownedNodes);
}
break;
}
});
}
}
private void OnReleaseLeaseResult(bool released)
{
switch (releaseLeaseCondition)
{
case ReleaseLeaseCondition.WhenTimeElapsed rlc:
if (released && rlc.Deadline.IsOverdue)
{
Log.Info("SBR released lease.");
releaseLeaseCondition = ReleaseLeaseCondition.NoLease.Instance; // released successfully
}
break;
}
}
public Receive WaitingForLease(IDecision decision)
{
bool Receive(object message)
{
switch (message)
{
case AcquireLease _:
OnAcquireLease(); // reply message is LeaseResult
return(true);
case AcquireLeaseResult lr:
if (lr.HoldingLease)
{
Log.Info("SBR acquired lease for decision [{0}]", decision);
var downedNodes = ActOnDecision(decision);
switch (releaseLeaseCondition)
{
case ReleaseLeaseCondition.WhenMembersRemoved rlc:
releaseLeaseCondition =
new ReleaseLeaseCondition.WhenMembersRemoved(rlc.Nodes.Union(downedNodes));
break;
default:
if (downedNodes.IsEmpty)
{
releaseLeaseCondition =
new ReleaseLeaseCondition.WhenTimeElapsed(Deadline.Now + releaseLeaseAfter);
}
else
{
releaseLeaseCondition =
new ReleaseLeaseCondition.WhenMembersRemoved(downedNodes);
}
break;
}
}
else
{
var reverseDecision = Strategy.ReverseDecision(decision);
Log.Info(
"SBR couldn't acquire lease, reverse decision [{0}] to [{1}]",
decision,
reverseDecision);
ActOnDecision(reverseDecision);
releaseLeaseCondition = ReleaseLeaseCondition.NoLease.Instance;
}
Stash.UnstashAll();
Context.Become(Receive);
return(true);
case ReleaseLeaseResult lr:
// superseded by new acquire release request
return(true);
case Tick _:
// ignore ticks while waiting
return(true);
default:
Stash.Stash();
return(true);
}
}
return(Receive);
}
