d12b1a91cd
* consensus/beacon: check that only the latest pow block is valid ttd block * consensus/beacon: move verification to async function * consensus/beacon: fix verifyTerminalPoWBlock, add test cases * consensus/beacon: cosmetic changes * consensus/beacon: apply karalabe's fixes
42 lines
1.6 KiB
Go
42 lines
1.6 KiB
Go
// Copyright 2017 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 consensus
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import "errors"
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var (
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// ErrUnknownAncestor is returned when validating a block requires an ancestor
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// that is unknown.
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ErrUnknownAncestor = errors.New("unknown ancestor")
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// ErrPrunedAncestor is returned when validating a block requires an ancestor
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// that is known, but the state of which is not available.
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ErrPrunedAncestor = errors.New("pruned ancestor")
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// ErrFutureBlock is returned when a block's timestamp is in the future according
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// to the current node.
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ErrFutureBlock = errors.New("block in the future")
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// ErrInvalidNumber is returned if a block's number doesn't equal its parent's
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// plus one.
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ErrInvalidNumber = errors.New("invalid block number")
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// ErrInvalidTerminalBlock is returned if a block is invalid wrt. the terminal
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// total difficulty.
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ErrInvalidTerminalBlock = errors.New("invalid terminal block")
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)
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