80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
package eth
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import (
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/types"
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)
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const (
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ProtocolVersion = 60
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NetworkId = 0
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ProtocolLength = uint64(8)
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ProtocolMaxMsgSize = 10 * 1024 * 1024
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maxHashes = 512
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maxBlocks = 128
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)
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// eth protocol message codes
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const (
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StatusMsg = iota
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GetTxMsg // unused
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TxMsg
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GetBlockHashesMsg
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BlockHashesMsg
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GetBlocksMsg
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BlocksMsg
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NewBlockMsg
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)
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type errCode int
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const (
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ErrMsgTooLarge = iota
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ErrDecode
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ErrInvalidMsgCode
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ErrProtocolVersionMismatch
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ErrNetworkIdMismatch
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ErrGenesisBlockMismatch
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ErrNoStatusMsg
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ErrExtraStatusMsg
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ErrSuspendedPeer
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)
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func (e errCode) String() string {
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return errorToString[int(e)]
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}
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// XXX change once legacy code is out
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var errorToString = map[int]string{
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ErrMsgTooLarge: "Message too long",
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ErrDecode: "Invalid message",
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ErrInvalidMsgCode: "Invalid message code",
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ErrProtocolVersionMismatch: "Protocol version mismatch",
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ErrNetworkIdMismatch: "NetworkId mismatch",
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ErrGenesisBlockMismatch: "Genesis block mismatch",
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ErrNoStatusMsg: "No status message",
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ErrExtraStatusMsg: "Extra status message",
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ErrSuspendedPeer: "Suspended peer",
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}
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// backend is the interface the ethereum protocol backend should implement
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// used as an argument to EthProtocol
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type txPool interface {
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AddTransactions([]*types.Transaction)
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GetTransactions() types.Transactions
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}
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type chainManager interface {
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GetBlockHashesFromHash(hash common.Hash, amount uint64) (hashes []common.Hash)
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GetBlock(hash common.Hash) (block *types.Block)
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Status() (td *big.Int, currentBlock common.Hash, genesisBlock common.Hash)
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}
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// message structs used for RLP serialization
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type newBlockMsgData struct {
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Block *types.Block
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TD *big.Int
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}
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