provider

package
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Published: Jun 23, 2021 License: AGPL-3.0 Imports: 12 Imported by: 0

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type Engine

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

Engine represents the provider engine, used to spread block proposals across the flow system, to non-consensus nodes. It makes sense to use a separate engine to isolate the consensus algorithm from other processes, which allows to create a different underlying protocol for consensus nodes, which have a higher priority to receive block proposals, and other nodes

func New

func New(
	log zerolog.Logger,
	message module.EngineMetrics,
	tracer module.Tracer,
	net module.Network,
	state protocol.State,
	me module.Local,
) (*Engine, error)

New creates a new block provider engine.

func (*Engine) Done

func (e *Engine) Done() <-chan struct{}

Done returns a done channel that is closed once the engine has fully stopped. For the ingestion engine, it only waits for all submit goroutines to end.

func (*Engine) Process

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

Process processes the given event from the node with the given origin ID in a blocking manner. It returns the potential processing error when done.

func (*Engine) ProcessLocal

func (e *Engine) ProcessLocal(event interface{}) error

ProcessLocal processes an event originating on the local node.

func (*Engine) Ready

func (e *Engine) Ready() <-chan struct{}

Ready returns a ready channel that is closed once the engine has fully started. For the provider engine, we consider the engine up and running upon initialization.

func (*Engine) Submit

func (e *Engine) Submit(originID flow.Identifier, event interface{})

Submit submits the given event from the node with the given origin ID for processing in a non-blocking manner. It returns instantly and logs a potential processing error internally when done.

func (*Engine) SubmitLocal

func (e *Engine) SubmitLocal(event interface{})

SubmitLocal submits an event originating on the local node.

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