| Called by the agent's alarm time when clock-time >= getExpirationTime().
The system will attempt to Expire the Alarm as soon as possible on
or after the ExpirationTime, but cannot guarantee any specific
maximum latency.
NOTE: this will be called in the thread of the cluster clock.
Implementations should make certain that this code does not block
for a significant length of time.
If the alarm has been canceled, this should be a no-op.
|