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https://github.com/status-im/nimbus-eth1.git
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221e6c9e2f
* Nimbus folder environment update details: * Integrated `CoreDbRef` for the sources in the `nimbus` sub-folder. * The `nimbus` program does not compile yet as it needs the updates in the parallel `stateless` sub-folder. * Stateless environment update details: * Integrated `CoreDbRef` for the sources in the `stateless` sub-folder. * The `nimbus` program compiles now. * Premix environment update details: * Integrated `CoreDbRef` for the sources in the `premix` sub-folder. * Fluffy environment update details: * Integrated `CoreDbRef` for the sources in the `fluffy` sub-folder. * Tools environment update details: * Integrated `CoreDbRef` for the sources in the `tools` sub-folder. * Nodocker environment update details: * Integrated `CoreDbRef` for the sources in the `hive_integration/nodocker` sub-folder. * Tests environment update details: * Integrated `CoreDbRef` for the sources in the `tests` sub-folder. * The unit tests compile and run cleanly now. * Generalise `CoreDbRef` to any `select_backend` supported database why: Generalisation was just missed due to overcoming some compiler oddity which was tied to rocksdb for testing. * Suppress compiler warning for `newChainDB()` why: Warning was added to this function which must be wrapped so that any `CatchableError` is re-raised as `Defect`. * Split off persistent `CoreDbRef` constructor into separate file why: This allows to compile a memory only database version without linking the backend library. * Use memory `CoreDbRef` database by default detail: Persistent DB constructor needs to import `db/core_db/persistent why: Most tests use memory DB anyway. This avoids linking `-lrocksdb` or any other backend by default. * fix `toLegacyBackend()` availability check why: got garbled after memory/persistent split. * Clarify raw access to MPT for snap sync handler why: Logically, `kvt` is not the raw access for the hexary trie (although this holds for the legacy database)
36 lines
1.2 KiB
Nim
36 lines
1.2 KiB
Nim
import eth/[rlp, common], core_db
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const
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headerPrefix = 'h'.byte # headerPrefix + num (uint64 big endian) + hash -> header
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headerHashSuffix = 'n'.byte # headerPrefix + num (uint64 big endian) + headerHashSuffix -> hash
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blockBodyPrefix = 'b'.byte # blockBodyPrefix + num (uint64 big endian) + hash -> block body
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proc headerHash*(db: CoreDbRef, number: uint64): Hash256 =
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var key: array[10, byte]
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key[0] = headerPrefix
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key[1..8] = toBytesBE(number)[0..^1]
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key[^1] = headerHashSuffix
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let res = db.kvt.get(key)
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doAssert(res.len == 32)
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result.data[0..31] = res[0..31]
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proc blockHeader*(db: CoreDbRef, hash: Hash256, number: uint64): BlockHeader =
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var key: array[41, byte]
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key[0] = headerPrefix
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key[1..8] = toBytesBE(number)[0..^1]
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key[9..40] = hash.data[0..^1]
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let res = db.kvt.get(key)
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result = rlp.decode(res, BlockHeader)
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proc blockHeader*(db: CoreDbRef, number: uint64): BlockHeader =
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let hash = db.headerHash(number)
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db.blockHeader(hash, number)
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proc blockBody*(db: CoreDbRef, hash: Hash256, number: uint64): BlockBody =
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var key: array[41, byte]
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key[0] = blockBodyPrefix
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key[1..8] = toBytesBE(number)[0..^1]
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key[9..40] = hash.data[0..^1]
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let res = db.kvt.get(key)
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result = rlp.decode(res, BlockBody)
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