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// Copyright 2018 The dexon-consensus-core Authors
// This file is part of the dexon-consensus-core library.
//
// The dexon-consensus-core library is free software: you can redistribute it
// and/or modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation, either version 3 of the License,
// or (at your option) any later version.
//
// The dexon-consensus-core library is distributed in the hope that it will be
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
// General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the dexon-consensus-core library. If not, see
// <http://www.gnu.org/licenses/>.
package simulation
import (
"encoding/json"
"time"
"github.com/dexon-foundation/dexon-consensus-core/common"
"github.com/dexon-foundation/dexon-consensus-core/core/types"
)
type messageType string
const (
shutdownAck messageType = "shutdownAck"
blockTimestamp messageType = "blockTimestamps"
)
// Message is a struct for peer sending message to server.
type Message struct {
Type messageType `json:"type"`
Payload json.RawMessage `json:"payload"`
}
type timestampEvent string
const (
blockSeen timestampEvent = "blockSeen"
timestampConfirm timestampEvent = "timestampConfirm"
timestampAck timestampEvent = "timestampAck"
)
// TimestampMessage is a struct for peer sending consensus timestamp information
// to server.
type TimestampMessage struct {
BlockHash common.Hash `json:"hash"`
Event timestampEvent `json:"event"`
Timestamp time.Time `json:"timestamp"`
}
type infoStatus string
const (
statusInit infoStatus = "init"
statusNormal infoStatus = "normal"
statusShutdown infoStatus = "shutdown"
)
// InfoMessage is a struct used by peerServer's /info.
type InfoMessage struct {
Status infoStatus `json:"status"`
Peers map[types.ValidatorID]string `json:"peers"`
}
// Endpoint is the interface for a client network endpoint.
type Endpoint interface {
GetID() types.ValidatorID
}
// Network is the interface for network related functions.
type Network interface {
PeerServerNetwork
Start()
NumPeers() int
Join(endpoint Endpoint) chan interface{}
BroadcastBlock(block *types.Block)
BroadcastNotaryAck(notaryAck *types.NotaryAck)
BroadcastVote(vote *types.Vote)
Endpoints() types.ValidatorIDs
}
// PeerServerNetwork is the interface for peerServer network related functions
type PeerServerNetwork interface {
DeliverBlocks(blocks BlockList)
NotifyServer(msg Message)
GetServerInfo() InfoMessage
}
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