blocksprovider

package
Version: v1.4.8 Latest Latest
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Published: Jul 22, 2020 License: Apache-2.0 Imports: 11 Imported by: 0

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Types

type BlocksDeliverer

type BlocksDeliverer interface {
	// Recv retrieves a response from the ordering service
	Recv() (*orderer.DeliverResponse, error)

	// Send sends an envelope to the ordering service
	Send(*common.Envelope) error
}

BlocksDeliverer defines interface which actually helps to abstract the AtomicBroadcast_DeliverClient with only required method for blocks provider. This also decouples the production implementation of the gRPC stream from the code in order for the code to be more modular and testable.

type BlocksProvider

type BlocksProvider interface {
	// DeliverBlocks starts delivering and disseminating blocks
	DeliverBlocks()

	// Stop shutdowns blocks provider and stops delivering new blocks
	Stop()
}

BlocksProvider used to read blocks from the ordering service for specified chain it subscribed to

func NewBlocksProvider

func NewBlocksProvider(chainID string, client streamClient, gossip GossipServiceAdapter, mcs api.MessageCryptoService) BlocksProvider

NewBlocksProvider constructor function to create blocks deliverer instance

type GossipServiceAdapter

type GossipServiceAdapter interface {
	// PeersOfChannel returns slice with members of specified channel
	PeersOfChannel(gossipcommon.ChainID) []discovery.NetworkMember

	// AddPayload adds payload to the local state sync buffer
	AddPayload(chainID string, payload *gossip_proto.Payload) error

	// Gossip the message across the peers
	Gossip(msg *gossip_proto.GossipMessage)
}

GossipServiceAdapter serves to provide basic functionality required from gossip service by delivery service

type LedgerInfo

type LedgerInfo interface {
	// LedgerHeight returns current local ledger height
	LedgerHeight() (uint64, error)
}

LedgerInfo an adapter to provide the interface to query the ledger committer for current ledger height

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