erigon-pulse/eth/protocol.go

85 lines
2.0 KiB
Go

package eth
import (
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
)
// Supported versions of the eth protocol (first is primary).
var ProtocolVersions = []uint{61, 60}
// Number of implemented message corresponding to different protocol versions.
var ProtocolLengths = []uint64{9, 8}
const (
NetworkId = 0
ProtocolMaxMsgSize = 10 * 1024 * 1024 // Maximum cap on the size of a protocol message
)
// eth protocol message codes
const (
StatusMsg = iota
NewBlockHashesMsg
TxMsg
GetBlockHashesMsg
BlockHashesMsg
GetBlocksMsg
BlocksMsg
NewBlockMsg
BlockHashesFromNumbers
)
type errCode int
const (
ErrMsgTooLarge = iota
ErrDecode
ErrInvalidMsgCode
ErrProtocolVersionMismatch
ErrNetworkIdMismatch
ErrGenesisBlockMismatch
ErrNoStatusMsg
ErrExtraStatusMsg
ErrSuspendedPeer
)
func (e errCode) String() string {
return errorToString[int(e)]
}
// XXX change once legacy code is out
var errorToString = map[int]string{
ErrMsgTooLarge: "Message too long",
ErrDecode: "Invalid message",
ErrInvalidMsgCode: "Invalid message code",
ErrProtocolVersionMismatch: "Protocol version mismatch",
ErrNetworkIdMismatch: "NetworkId mismatch",
ErrGenesisBlockMismatch: "Genesis block mismatch",
ErrNoStatusMsg: "No status message",
ErrExtraStatusMsg: "Extra status message",
ErrSuspendedPeer: "Suspended peer",
}
type txPool interface {
// AddTransactions should add the given transactions to the pool.
AddTransactions([]*types.Transaction)
// GetTransactions should return pending transactions.
// The slice should be modifiable by the caller.
GetTransactions() types.Transactions
}
type chainManager interface {
GetBlockHashesFromHash(hash common.Hash, amount uint64) (hashes []common.Hash)
GetBlock(hash common.Hash) (block *types.Block)
Status() (td *big.Int, currentBlock common.Hash, genesisBlock common.Hash)
}
// message structs used for RLP serialization
type newBlockMsgData struct {
Block *types.Block
TD *big.Int
}