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237 lines
9.1 KiB
237 lines
9.1 KiB
// Copyright 2018 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 rawdb contains a collection of low level database accessors.
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package rawdb
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import (
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"encoding/binary"
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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/metrics"
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)
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// The fields below define the low level database schema prefixing.
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var (
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// databaseVerisionKey tracks the current database version.
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databaseVerisionKey = []byte("DatabaseVersion")
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// headHeaderKey tracks the latest know header's hash.
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headHeaderKey = []byte("LastHeader")
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// headBlockKey tracks the latest know full block's hash.
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headBlockKey = []byte("LastBlock")
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// headFastBlockKey tracks the latest known incomplete block's hash duirng fast sync.
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headFastBlockKey = []byte("LastFast")
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// fastTrieProgressKey tracks the number of trie entries imported during fast sync.
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fastTrieProgressKey = []byte("TrieSync")
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// Data item prefixes (use single byte to avoid mixing data types, avoid `i`, used for indexes).
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headerPrefix = []byte("h") // headerPrefix + num (uint64 big endian) + hash -> header
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headerTDSuffix = []byte("t") // headerPrefix + num (uint64 big endian) + hash + headerTDSuffix -> td
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headerHashSuffix = []byte("n") // headerPrefix + num (uint64 big endian) + headerHashSuffix -> hash
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headerNumberPrefix = []byte("H") // headerNumberPrefix + hash -> num (uint64 big endian)
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blockBodyPrefix = []byte("b") // blockBodyPrefix + num (uint64 big endian) + hash -> block body
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blockReceiptsPrefix = []byte("r") // blockReceiptsPrefix + num (uint64 big endian) + hash -> block receipts
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txLookupPrefix = []byte("l") // txLookupPrefix + hash -> transaction/receipt lookup metadata
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cxLookupPrefix = []byte("cx") // cxLookupPrefix + hash -> cxReceipt lookup metadata
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bloomBitsPrefix = []byte("B") // bloomBitsPrefix + bit (uint16 big endian) + section (uint64 big endian) + hash -> bloom bits
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shardStatePrefix = []byte("ss") // shardStatePrefix + num (uint64 big endian) + hash -> shardState
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lastCommitsKey = []byte("LastCommits")
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preimagePrefix = []byte("secure-key-") // preimagePrefix + hash -> preimage
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configPrefix = []byte("ethereum-config-") // config prefix for the db
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shardLastCrosslinkPrefix = []byte("lcl") // prefix for shard last crosslink
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crosslinkPrefix = []byte("cl") // prefix for crosslink
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tempCrosslinkPrefix = []byte("tcl") // prefix for tempCrosslink
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// TODO: shorten the key prefix so we don't waste db space
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cxReceiptPrefix = []byte("cxReceipt") // prefix for cross shard transaction receipt
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tempCxReceiptPrefix = []byte("tempCxReceipt") // prefix for temporary cross shard transaction receipt
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cxReceiptHashPrefix = []byte("cxReceiptHash") // prefix for cross shard transaction receipt hash
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cxReceiptSpentPrefix = []byte("cxReceiptSpent") // prefix for indicator of unspent of cxReceiptsProof
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cxReceiptUnspentCheckpointPrefix = []byte("cxReceiptUnspentCheckpoint") // prefix for cxReceiptsProof unspent checkpoint
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stakingPrefix = []byte("staking") // prefix for staking validator information
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// epochBlockNumberPrefix + epoch (big.Int.Bytes())
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// -> epoch block number (big.Int.Bytes())
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epochBlockNumberPrefix = []byte("harmony-epoch-block-number-")
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// epochVrfBlockNumbersPrefix + epoch (big.Int.Bytes())
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epochVrfBlockNumbersPrefix = []byte("epoch-vrf-block-numbers-")
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// epochVdfBlockNumberPrefix + epoch (big.Int.Bytes())
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epochVdfBlockNumberPrefix = []byte("epoch-vdf-block-number-")
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// Chain index prefixes (use `i` + single byte to avoid mixing data types).
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BloomBitsIndexPrefix = []byte("iB") // BloomBitsIndexPrefix is the data table of a chain indexer to track its progress
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preimageCounter = metrics.NewRegisteredCounter("db/preimage/total", nil)
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preimageHitCounter = metrics.NewRegisteredCounter("db/preimage/hits", nil)
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)
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// TxLookupEntry is a positional metadata to help looking up the data content of
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// a transaction or receipt given only its hash.
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type TxLookupEntry struct {
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BlockHash common.Hash
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BlockIndex uint64
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Index uint64
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}
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// encodeBlockNumber encodes a block number as big endian uint64
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func encodeBlockNumber(number uint64) []byte {
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enc := make([]byte, 8)
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binary.BigEndian.PutUint64(enc, number)
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return enc
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}
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// headerKey = headerPrefix + num (uint64 big endian) + hash
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func headerKey(number uint64, hash common.Hash) []byte {
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return append(append(headerPrefix, encodeBlockNumber(number)...), hash.Bytes()...)
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}
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// headerTDKey = headerPrefix + num (uint64 big endian) + hash + headerTDSuffix
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func headerTDKey(number uint64, hash common.Hash) []byte {
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return append(headerKey(number, hash), headerTDSuffix...)
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}
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// headerHashKey = headerPrefix + num (uint64 big endian) + headerHashSuffix
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func headerHashKey(number uint64) []byte {
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return append(append(headerPrefix, encodeBlockNumber(number)...), headerHashSuffix...)
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}
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// headerNumberKey = headerNumberPrefix + hash
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func headerNumberKey(hash common.Hash) []byte {
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return append(headerNumberPrefix, hash.Bytes()...)
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}
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// blockBodyKey = blockBodyPrefix + num (uint64 big endian) + hash
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func blockBodyKey(number uint64, hash common.Hash) []byte {
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return append(append(blockBodyPrefix, encodeBlockNumber(number)...), hash.Bytes()...)
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}
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// blockReceiptsKey = blockReceiptsPrefix + num (uint64 big endian) + hash
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func blockReceiptsKey(number uint64, hash common.Hash) []byte {
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return append(append(blockReceiptsPrefix, encodeBlockNumber(number)...), hash.Bytes()...)
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}
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// txLookupKey = txLookupPrefix + hash
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func txLookupKey(hash common.Hash) []byte {
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return append(txLookupPrefix, hash.Bytes()...)
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}
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// cxLookupKey = cxLookupPrefix + hash
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func cxLookupKey(hash common.Hash) []byte {
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return append(cxLookupPrefix, hash.Bytes()...)
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}
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// bloomBitsKey = bloomBitsPrefix + bit (uint16 big endian) + section (uint64 big endian) + hash
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func bloomBitsKey(bit uint, section uint64, hash common.Hash) []byte {
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key := append(append(bloomBitsPrefix, make([]byte, 10)...), hash.Bytes()...)
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binary.BigEndian.PutUint16(key[1:], uint16(bit))
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binary.BigEndian.PutUint64(key[3:], section)
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return key
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}
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// preimageKey = preimagePrefix + hash
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func preimageKey(hash common.Hash) []byte {
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return append(preimagePrefix, hash.Bytes()...)
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}
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// configKey = configPrefix + hash
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func configKey(hash common.Hash) []byte {
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return append(configPrefix, hash.Bytes()...)
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}
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func shardStateKey(epoch *big.Int) []byte {
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return append(shardStatePrefix, epoch.Bytes()...)
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}
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func epochBlockNumberKey(epoch *big.Int) []byte {
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return append(epochBlockNumberPrefix, epoch.Bytes()...)
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}
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func epochVrfBlockNumbersKey(epoch *big.Int) []byte {
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return append(epochVrfBlockNumbersPrefix, epoch.Bytes()...)
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}
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func epochVdfBlockNumberKey(epoch *big.Int) []byte {
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return append(epochVdfBlockNumberPrefix, epoch.Bytes()...)
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}
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func shardLastCrosslinkKey(shardID uint32) []byte {
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sbKey := make([]byte, 4)
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binary.BigEndian.PutUint32(sbKey, shardID)
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key := append(crosslinkPrefix, sbKey...)
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return key
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}
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func crosslinkKey(shardID uint32, blockNum uint64, temp bool) []byte {
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prefix := crosslinkPrefix
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if temp {
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prefix = tempCrosslinkPrefix
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}
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sbKey := make([]byte, 12)
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binary.BigEndian.PutUint32(sbKey, shardID)
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binary.BigEndian.PutUint64(sbKey[4:], blockNum)
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key := append(prefix, sbKey...)
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return key
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}
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// cxReceiptKey = cxReceiptsPrefix + shardID + num (uint64 big endian) + hash
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func cxReceiptKey(shardID uint32, number uint64, hash common.Hash, temp bool) []byte {
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prefix := cxReceiptPrefix
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if temp {
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prefix = tempCxReceiptPrefix
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}
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sKey := make([]byte, 4)
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binary.BigEndian.PutUint32(sKey, shardID)
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tmp := append(prefix, sKey...)
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tmp1 := append(tmp, encodeBlockNumber(number)...)
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return append(tmp1, hash.Bytes()...)
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}
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// cxReceiptSpentKey = cxReceiptsSpentPrefix + shardID + num (uint64 big endian)
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func cxReceiptSpentKey(shardID uint32, number uint64) []byte {
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prefix := cxReceiptSpentPrefix
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sKey := make([]byte, 4)
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binary.BigEndian.PutUint32(sKey, shardID)
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tmp := append(prefix, sKey...)
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return append(tmp, encodeBlockNumber(number)...)
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}
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// cxReceiptUnspentCheckpointKey = cxReceiptsUnspentCheckpointPrefix + shardID
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func cxReceiptUnspentCheckpointKey(shardID uint32) []byte {
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prefix := cxReceiptUnspentCheckpointPrefix
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sKey := make([]byte, 4)
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binary.BigEndian.PutUint32(sKey, shardID)
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return append(prefix, sKey...)
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}
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func stakingKey(addr common.Address) []byte {
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prefix := stakingPrefix
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return append(prefix, addr.Bytes()...)
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}
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