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 }