triggers

Documentation

Index

• type EventDispatcher
  • func New(log logging.Logger) *EventDispatcher
  • func (ed *EventDispatcher) Accept(ctx *snow.ConsensusContext, containerID ids.ID, container []byte) error
  • func (ed *EventDispatcher) DeregisterChain(chainID ids.ID, identifier string) error
  • func (ed *EventDispatcher) Issue(ctx *snow.ConsensusContext, containerID ids.ID, container []byte) error
  • func (ed *EventDispatcher) RegisterChain(chainID ids.ID, identifier string, handlerFunc interface{}, dieOnError bool) error
  • func (ed *EventDispatcher) Reject(ctx *snow.ConsensusContext, containerID ids.ID, container []byte) error

Types

type EventDispatcher

type EventDispatcher struct {
	// contains filtered or unexported fields
}

EventDispatcher receives events from consensus and dispatches the events to triggers

func New

func New(log logging.Logger) *EventDispatcher

func (*EventDispatcher) Accept

func (ed *EventDispatcher) Accept(ctx *snow.ConsensusContext, containerID ids.ID, container []byte) error

Accept is called when a transaction or block is accepted. If the returned error is non-nil, the chain associated with [ctx] should shut down and not commit [container] or any other container to its database as accepted.

func (*EventDispatcher) DeregisterChain

func (ed *EventDispatcher) DeregisterChain(chainID ids.ID, identifier string) error

DeregisterChain removes a chain handler from the system

func (*EventDispatcher) Issue

func (ed *EventDispatcher) Issue(ctx *snow.ConsensusContext, containerID ids.ID, container []byte) error

Issue is called when a transaction or block is issued

func (*EventDispatcher) RegisterChain

func (ed *EventDispatcher) RegisterChain(chainID ids.ID, identifier string, handlerFunc interface{}, dieOnError bool) error

RegisterChain causes [handlerFunc] to be invoked every time a container is issued, accepted or rejected on chain [chainID]. [handlerFunc] should implement at least one of Acceptor, Rejector, Issuer. If [dieOnError], chain [chainID] stops if [handler].Accept is invoked and returns a non-nil error.

func (*EventDispatcher) Reject

func (ed *EventDispatcher) Reject(ctx *snow.ConsensusContext, containerID ids.ID, container []byte) error

Reject is called when a transaction or block is rejected