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cmd/geth, core: add support for recording SHA3 preimages (#3543)

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This commit is contained in:
Nick Johnson
2017-01-17 11:19:50 +00:00
committed by Felix Lange
parent 26d385c18b
commit 17d92233d9
29 changed files with 156 additions and 46 deletions
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45
core/database_util.go
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@@ -30,6 +30,7 @@ import (
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rlp"
)
@@ -39,12 +40,13 @@ var (
headBlockKey = []byte("LastBlock")
headFastKey = []byte("LastFast")
headerPrefix = []byte("h") // headerPrefix + num (uint64 big endian) + hash -> header
tdSuffix = []byte("t") // headerPrefix + num (uint64 big endian) + hash + tdSuffix -> td
numSuffix = []byte("n") // headerPrefix + num (uint64 big endian) + numSuffix -> hash
blockHashPrefix = []byte("H") // blockHashPrefix + hash -> num (uint64 big endian)
bodyPrefix = []byte("b") // bodyPrefix + num (uint64 big endian) + hash -> block body
blockReceiptsPrefix = []byte("r") // blockReceiptsPrefix + num (uint64 big endian) + hash -> block receipts
headerPrefix = []byte("h") // headerPrefix + num (uint64 big endian) + hash -> header
tdSuffix = []byte("t") // headerPrefix + num (uint64 big endian) + hash + tdSuffix -> td
numSuffix = []byte("n") // headerPrefix + num (uint64 big endian) + numSuffix -> hash
blockHashPrefix = []byte("H") // blockHashPrefix + hash -> num (uint64 big endian)
bodyPrefix = []byte("b") // bodyPrefix + num (uint64 big endian) + hash -> block body
blockReceiptsPrefix = []byte("r") // blockReceiptsPrefix + num (uint64 big endian) + hash -> block receipts
preimagePrefix = "secure-key-" // preimagePrefix + hash -> preimage
txMetaSuffix = []byte{0x01}
receiptsPrefix = []byte("receipts-")
@@ -66,6 +68,9 @@ var (
ChainConfigNotFoundErr = errors.New("ChainConfig not found") // general config not found error
mipmapBloomMu sync.Mutex // protect against race condition when updating mipmap blooms
preimageCounter = metrics.NewCounter("db/preimage/total")
preimageHitCounter = metrics.NewCounter("db/preimage/hits")
)
// encodeBlockNumber encodes a block number as big endian uint64
@@ -595,6 +600,34 @@ func GetMipmapBloom(db ethdb.Database, number, level uint64) types.Bloom {
return types.BytesToBloom(bloomDat)
}
// PreimageTable returns a Database instance with the key prefix for preimage entries.
func PreimageTable(db ethdb.Database) ethdb.Database {
return ethdb.NewTable(db, preimagePrefix)
}
// WritePreimages writes the provided set of preimages to the database. `number` is the
// current block number, and is used for debug messages only.
func WritePreimages(db ethdb.Database, number uint64, preimages map[common.Hash][]byte) error {
table := PreimageTable(db)
batch := table.NewBatch()
hitCount := 0
for hash, preimage := range preimages {
if _, err := table.Get(hash.Bytes()); err != nil {
batch.Put(hash.Bytes(), preimage)
hitCount += 1
}
}
preimageCounter.Inc(int64(len(preimages)))
preimageHitCounter.Inc(int64(hitCount))
if hitCount > 0 {
if err := batch.Write(); err != nil {
return fmt.Errorf("preimage write fail for block %d: %v", number, err)
}
glog.V(logger.Debug).Infof("%d preimages in block %d, including %d new", len(preimages), number, hitCount)
}
return nil
}
// GetBlockChainVersion reads the version number from db.
func GetBlockChainVersion(db ethdb.Database) int {
var vsn uint