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Types ¶
type TimeoutAggregator ¶
type TimeoutAggregator struct {
*component.ComponentManager
notifications.NoopConsumer
// contains filtered or unexported fields
}
TimeoutAggregator stores the timeout objects and aggregates them into a TC when enough TOs have been collected. It's safe to use in concurrent environment.
func NewTimeoutAggregator ¶
func NewTimeoutAggregator(log zerolog.Logger, hotstuffMetrics module.HotstuffMetrics, engineMetrics module.EngineMetrics, mempoolMetrics module.MempoolMetrics, lowestRetainedView uint64, collectors hotstuff.TimeoutCollectors, ) (*TimeoutAggregator, error)
NewTimeoutAggregator creates an instance of timeout aggregator. No errors are expected during normal operations.
func (*TimeoutAggregator) AddTimeout ¶
func (t *TimeoutAggregator) AddTimeout(timeoutObject *model.TimeoutObject)
AddTimeout checks if TO is stale and appends TO to processing queue. The actual processing will be done asynchronously by the `TimeoutAggregator`'s internal worker routines.
func (*TimeoutAggregator) OnViewChange ¶
func (t *TimeoutAggregator) OnViewChange(_, newView uint64)
OnViewChange implements the `OnViewChange` callback from the `hotstuff.Consumer`. We notify the enteringViewProcessingLoop worker, which then prunes up to the active view. CAUTION: the input to this callback is treated as trusted; precautions should be taken that messages from external nodes cannot be considered as inputs to this function
func (*TimeoutAggregator) PruneUpToView ¶
func (t *TimeoutAggregator) PruneUpToView(lowestRetainedView uint64)
PruneUpToView deletes all `TimeoutCollector`s _below_ to the given view, as well as related indices. We only retain and process `TimeoutCollector`s, whose view is equal or larger than `lowestRetainedView`. If `lowestRetainedView` is smaller than the previous value, the previous value is kept and the method call is a NoOp.
type TimeoutCollectors ¶
type TimeoutCollectors struct {
// contains filtered or unexported fields
}
TimeoutCollectors implements management of multiple timeout collectors indexed by view. Implements hotstuff.TimeoutCollectors interface. Creating a TimeoutCollector for a particular view is lazy (instances are created on demand). This structure is concurrently safe. TODO: once VoteCollectors gets updated to stop managing worker pool we can merge VoteCollectors and TimeoutCollectors using generics
func NewTimeoutCollectors ¶
func NewTimeoutCollectors(log zerolog.Logger, metrics module.HotstuffMetrics, lowestRetainedView uint64, collectorFactory hotstuff.TimeoutCollectorFactory) *TimeoutCollectors
func (*TimeoutCollectors) GetOrCreateCollector ¶
func (t *TimeoutCollectors) GetOrCreateCollector(view uint64) (hotstuff.TimeoutCollector, bool, error)
GetOrCreateCollector retrieves the hotstuff.TimeoutCollector for the specified view or creates one if none exists.
- (collector, true, nil) if no collector can be found by the view, and a new collector was created.
- (collector, false, nil) if the collector can be found by the view
- (nil, false, error) if running into any exception creating the timeout collector state machine
Expected error returns during normal operations:
- mempool.BelowPrunedThresholdError if view is below the pruning threshold
- model.ErrViewForUnknownEpoch if view is not yet pruned but no epoch containing the given view is known, this error
can be returned from factory method.
func (*TimeoutCollectors) PruneUpToView ¶
func (t *TimeoutCollectors) PruneUpToView(lowestRetainedView uint64)
PruneUpToView prunes the timeout collectors with views _below_ the given value, i.e. we only retain and process whose view is equal or larger than `lowestRetainedView`. If `lowestRetainedView` is smaller than the previous value, the previous value is kept and the method call is a NoOp.
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