0467a6ceec
eth/63 fast synchronization algorithm
204 lines
4.6 KiB
Go
204 lines
4.6 KiB
Go
// Copyright 2014 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package core
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import (
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"errors"
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"fmt"
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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)
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var (
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BlockNumberErr = errors.New("block number invalid")
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BlockFutureErr = errors.New("block time is in the future")
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BlockTSTooBigErr = errors.New("block time too big")
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BlockEqualTSErr = errors.New("block time stamp equal to previous")
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)
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// Parent error. In case a parent is unknown this error will be thrown
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// by the block manager
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type ParentErr struct {
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Message string
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}
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func (err *ParentErr) Error() string {
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return err.Message
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}
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func ParentError(hash common.Hash) error {
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return &ParentErr{Message: fmt.Sprintf("Block's parent unknown %x", hash)}
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}
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func IsParentErr(err error) bool {
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_, ok := err.(*ParentErr)
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return ok
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}
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type UncleErr struct {
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Message string
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}
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func (err *UncleErr) Error() string {
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return err.Message
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}
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func UncleError(format string, v ...interface{}) error {
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return &UncleErr{Message: fmt.Sprintf(format, v...)}
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}
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func IsUncleErr(err error) bool {
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_, ok := err.(*UncleErr)
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return ok
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}
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// Block validation error. If any validation fails, this error will be thrown
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type ValidationErr struct {
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Message string
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}
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func (err *ValidationErr) Error() string {
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return err.Message
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}
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func ValidationError(format string, v ...interface{}) *ValidationErr {
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return &ValidationErr{Message: fmt.Sprintf(format, v...)}
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}
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func IsValidationErr(err error) bool {
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_, ok := err.(*ValidationErr)
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return ok
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}
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type NonceErr struct {
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Message string
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Is, Exp uint64
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}
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func (err *NonceErr) Error() string {
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return err.Message
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}
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func NonceError(is, exp uint64) *NonceErr {
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return &NonceErr{Message: fmt.Sprintf("Transaction w/ invalid nonce. tx=%d state=%d)", is, exp), Is: is, Exp: exp}
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}
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func IsNonceErr(err error) bool {
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_, ok := err.(*NonceErr)
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return ok
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}
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// BlockNonceErr indicates that a block's nonce is invalid.
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type BlockNonceErr struct {
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Number *big.Int
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Hash common.Hash
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Nonce uint64
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}
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func (err *BlockNonceErr) Error() string {
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return fmt.Sprintf("nonce for #%d [%x…] is invalid (got %d)", err.Number, err.Hash, err.Nonce)
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}
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// IsBlockNonceErr returns true for invalid block nonce errors.
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func IsBlockNonceErr(err error) bool {
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_, ok := err.(*BlockNonceErr)
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return ok
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}
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type InvalidTxErr struct {
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Message string
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}
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func (err *InvalidTxErr) Error() string {
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return err.Message
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}
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func InvalidTxError(err error) *InvalidTxErr {
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return &InvalidTxErr{fmt.Sprintf("%v", err)}
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}
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func IsInvalidTxErr(err error) bool {
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_, ok := err.(*InvalidTxErr)
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return ok
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}
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type TDError struct {
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a, b *big.Int
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}
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func (self *TDError) Error() string {
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return fmt.Sprintf("incoming chain has a lower or equal TD (%v <= %v)", self.a, self.b)
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}
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func IsTDError(e error) bool {
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_, ok := e.(*TDError)
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return ok
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}
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type KnownBlockError struct {
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number *big.Int
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hash common.Hash
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}
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func (self *KnownBlockError) Error() string {
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return fmt.Sprintf("block %v already known (%x)", self.number, self.hash[0:4])
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}
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func IsKnownBlockErr(e error) bool {
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_, ok := e.(*KnownBlockError)
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return ok
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}
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type ValueTransferError struct {
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message string
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}
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func ValueTransferErr(str string, v ...interface{}) *ValueTransferError {
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return &ValueTransferError{fmt.Sprintf(str, v...)}
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}
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func (self *ValueTransferError) Error() string {
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return self.message
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}
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func IsValueTransferErr(e error) bool {
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_, ok := e.(*ValueTransferError)
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return ok
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}
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type BadHashError common.Hash
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func (h BadHashError) Error() string {
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return fmt.Sprintf("Found known bad hash in chain %x", h[:])
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}
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func IsBadHashError(err error) bool {
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_, ok := err.(BadHashError)
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return ok
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}
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type GasLimitErr struct {
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Have, Want *big.Int
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}
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func IsGasLimitErr(err error) bool {
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_, ok := err.(*GasLimitErr)
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return ok
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}
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func (err *GasLimitErr) Error() string {
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return fmt.Sprintf("GasLimit reached. Have %d gas, transaction requires %d", err.Have, err.Want)
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}
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