53 lines
1.7 KiB
Nim
53 lines
1.7 KiB
Nim
# Nimbus
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# Copyright (c) 2021-2024 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
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# * MIT license ([LICENSE-MIT](LICENSE-MIT))
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# at your option.
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# This file may not be copied, modified, or distributed except according to
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# those terms.
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{.push raises: [].}
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import chronicles, eth/rlp, stew/io2, ./chain, ../common/common, ../utils/utils
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proc importRlpBlock*(
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blocksRlp: openArray[byte], com: CommonRef, importFile: string = ""
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): bool =
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var
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# the encoded rlp can contains one or more blocks
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rlp = rlpFromBytes(blocksRlp)
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chain = newChain(com, extraValidation = true)
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errorCount = 0
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blk: array[1, EthBlock]
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# even though the new imported blocks have block number
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# smaller than head, we keep importing it.
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# it maybe a side chain.
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# TODO the above is no longer true with a single-state database - to deal with
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# that scenario the code needs to be rewritten to not persist the blocks
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# to the state database until all have been processed
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while rlp.hasData:
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blk[0] =
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try:
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rlp.read(EthBlock)
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except RlpError as e:
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# terminate if there was a decoding error
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error "rlp error", fileName = importFile, msg = e.msg, exception = e.name
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return false
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chain.persistBlocks(blk).isOkOr:
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# register one more error and continue
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error "import error", fileName = importFile, error
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errorCount.inc
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return errorCount == 0
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proc importRlpBlock*(importFile: string, com: CommonRef): bool =
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let res = io2.readAllBytes(importFile)
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if res.isErr:
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error "failed to import", fileName = importFile
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return false
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importRlpBlock(res.get, com, importFile)
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