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consensus_engine.go
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consensus_engine.go
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// Copyright 2017 Monax Industries Limited
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package types
import (
"github.com/hyperledger/burrow/event"
"github.com/hyperledger/burrow/txs"
abci_types "github.com/tendermint/abci/types"
"github.com/tendermint/go-crypto"
"github.com/tendermint/go-p2p"
)
type ConsensusEngine interface {
// Peer-2-Peer
IsListening() bool
Listeners() []p2p.Listener
NodeInfo() *p2p.NodeInfo
Peers() []*Peer
// Private Validator
PublicValidatorKey() crypto.PubKey
// Memory pool
BroadcastTransaction(transaction []byte,
callback func(*abci_types.Response)) error
// Events
// For consensus events like NewBlock
Events() event.EventEmitter
// List pending transactions in the mempool, passing 0 for maxTxs gets an
// unbounded number of transactions
ListUnconfirmedTxs(maxTxs int) ([]txs.Tx, error)
ListValidators() []Validator
ConsensusState() *ConsensusState
// TODO: Consider creating a real type for PeerRoundState, but at the looks
// quite coupled to tendermint
PeerConsensusStates() map[string]string
// Allow for graceful shutdown of node. Returns whether the node was stopped.
Stop() bool
}