2019-01-09 08:46:19 +00:00
|
|
|
import
|
|
|
|
|
json, downloader, stint, eth_trie/db, byteutils,
|
|
|
|
|
../nimbus/db/[db_chain, storage_types], rlp, eth_common,
|
|
|
|
|
../nimbus/p2p/chain, ../nimbus/tracer
|
|
|
|
|
|
2019-01-09 11:40:25 +00:00
|
|
|
proc generatePrestate*(nimbus: JsonNode, blockNumber: Uint256, thisBlock: Block) =
|
2019-01-09 08:46:19 +00:00
|
|
|
let
|
|
|
|
|
state = nimbus["state"]
|
|
|
|
|
parentNumber = blockNumber - 1.u256
|
|
|
|
|
parentBlock = requestBlock(parentNumber)
|
|
|
|
|
headerHash = rlpHash(thisBlock.header)
|
|
|
|
|
|
|
|
|
|
var
|
|
|
|
|
memoryDB = newMemoryDB()
|
|
|
|
|
chainDB = newBaseChainDB(memoryDB, false)
|
|
|
|
|
|
|
|
|
|
chainDB.setHead(parentBlock.header, true)
|
|
|
|
|
chainDB.persistTransactions(blockNumber, thisBlock.body.transactions)
|
|
|
|
|
discard chainDB.persistUncles(thisBlock.body.uncles)
|
|
|
|
|
|
|
|
|
|
memoryDB.put(genericHashKey(headerHash).toOpenArray, rlp.encode(thisBlock.header))
|
|
|
|
|
chainDB.addBlockNumberToHashLookup(thisBlock.header)
|
|
|
|
|
|
|
|
|
|
for k, v in state:
|
|
|
|
|
let key = hexToSeqByte(k)
|
|
|
|
|
let value = hexToSeqByte(v.getStr())
|
|
|
|
|
memoryDB.put(key, value)
|
|
|
|
|
|
|
|
|
|
let
|
|
|
|
|
chain = newChain(chainDB)
|
|
|
|
|
parent = chainDB.getBlockHeader(parentNumber)
|
|
|
|
|
header = chainDB.getBlockHeader(blockNumber)
|
|
|
|
|
body = chainDB.getBlockBody(headerHash)
|
|
|
|
|
headers = @[header]
|
|
|
|
|
bodies = @[body]
|
|
|
|
|
|
|
|
|
|
var metaData = %{
|
|
|
|
|
"blockNumber": %blockNumber.toHex
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
metaData.dumpMemoryDB(memoryDB)
|
|
|
|
|
writeFile("block" & $blockNumber & ".json", metaData.pretty())
|
