provider

Documentation

Index

• Constants
• type Engine
  • func New(logger zerolog.Logger, tracer module.Tracer, net network.EngineRegistry, ...) (*Engine, error)
  • func (e *Engine) BroadcastExecutionReceipt(ctx context.Context, height uint64, receipt *flow.ExecutionReceipt) (bool, error)
  • func (e *Engine) Process(channel channels.Channel, originID flow.Identifier, event interface{}) error
• type ProviderEngine

Constants

const (
	// DefaultChunkDataPackRequestWorker is the default number of concurrent workers processing chunk data pack requests on
	// execution nodes.
	DefaultChunkDataPackRequestWorker = 100
	// DefaultChunkDataPackQueryTimeout is the default timeout value for querying a chunk data pack from storage.
	DefaultChunkDataPackQueryTimeout = 10 * time.Second
	// DefaultChunkDataPackDeliveryTimeout is the default timeout value for delivery of a chunk data pack to a verification
	// node.
	DefaultChunkDataPackDeliveryTimeout = 10 * time.Second
)

Types

type Engine

type Engine struct {
	component.Component
	// contains filtered or unexported fields
}

An Engine provides means of accessing data about execution state and broadcasts execution receipts to nodes in the network. Also generates and saves execution receipts

func New

func New(
	logger zerolog.Logger,
	tracer module.Tracer,
	net network.EngineRegistry,
	state protocol.State,
	execState state.ReadOnlyExecutionState,
	metrics module.ExecutionMetrics,
	checkAuthorizedAtBlock func(blockID flow.Identifier) (bool, error),
	chunkDataPackRequestQueue engine.MessageStore,
	chdpRequestWorkers uint,
	chunkDataPackQueryTimeout time.Duration,
	chunkDataPackDeliveryTimeout time.Duration,
) (*Engine, error)

func (*Engine) BroadcastExecutionReceipt

func (e *Engine) BroadcastExecutionReceipt(ctx context.Context, height uint64, receipt *flow.ExecutionReceipt) (bool, error)

BroadcastExecutionReceipt broadcasts an execution receipt to all nodes in the network. It skips broadcasting the receipt if the block is sealed, or the node is not authorized at the block. It returns true if the receipt is broadcasted, false otherwise.

func (*Engine) Process

func (e *Engine) Process(channel channels.Channel, originID flow.Identifier, event interface{}) error

type ProviderEngine

type ProviderEngine interface {
	network.MessageProcessor
	// BroadcastExecutionReceipt broadcasts an execution receipt to all nodes in the network.
	// It skips broadcasting the receipt if the block is sealed, or the node is not authorized at the block.
	// It returns true if the receipt is broadcasted, false otherwise.
	BroadcastExecutionReceipt(context.Context, uint64, *flow.ExecutionReceipt) (bool, error)
}