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https://github.com/status-im/nimbus-eth1.git
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d6a4205324
* Aristo+RocksDB: Update backend drivers why: RocksDB update allows use some of the newly provided methods which were previously implemented by using the very C backend (for the lack of NIM methods.) * Aristo+RocksDB: Simplify drivers wrapper * Kvt: Update backend drivers and wrappers similar to `Aristo` * Aristo+Kvm: Use column families for RocksDB * Aristo+MemoryDB: Code cosmetics * Aristo: Provide guest column family for export why: So `Kvt` can piggyback on `Aristo` so there avoiding to run a second DBMS system in parallel. * Kvt: Provide import mechanism for RoksDB guest column family why: So `Kvt` can piggyback on `Aristo` so there avoiding to run a second DBMS system in parallel. * CoreDb+Aristo: Run persistent `Kvt` DB piggybacked on `Aristo` why: Avoiding to run two DBMS systems in parallel. * Fix copyright year * Ditto
64 lines
2.0 KiB
Nim
64 lines
2.0 KiB
Nim
# nimbus-eth1
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# Copyright (c) 2023-2024 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) or
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# http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
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# http://opensource.org/licenses/MIT)
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# at your option. This file may not be copied, modified, or distributed
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# except according to those terms.
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## Rocks DB internal driver descriptor
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## ===================================
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{.push raises: [].}
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import
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std/os,
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rocksdb,
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stew/endians2,
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../../aristo_desc,
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../init_common
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type
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RdbInst* = object
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store*: ColFamilyReadWrite ## Rocks DB database handler
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session*: WriteBatchRef ## For batched `put()`
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basePath*: string ## Database directory
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noFq*: bool ## No filter queues available
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RdbGuestDbRef* = ref object of GuestDbRef
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guestDb*: ColFamilyReadWrite ## Pigiback feature reference
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RdbKey* = array[1 + sizeof VertexID, byte]
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## Sub-table key, <pfx> + VertexID
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const
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GuestFamily* = "Guest" ## Guest family (e.g. for Kvt)
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AristoFamily* = "Aristo" ## RocksDB column family
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BaseFolder* = "nimbus" ## Same as for Legacy DB
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DataFolder* = "aristo" ## Legacy DB has "data"
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# ------------------------------------------------------------------------------
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# Public functions
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# ------------------------------------------------------------------------------
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template logTxt*(info: static[string]): static[string] =
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"RocksDB/" & info
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func baseDir*(rdb: RdbInst): string =
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rdb.basePath / BaseFolder
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func dataDir*(rdb: RdbInst): string =
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rdb.baseDir / DataFolder
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func toRdbKey*(id: uint64; pfx: StorageType): RdbKey =
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let idKey = id.toBytesBE
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result[0] = pfx.ord.byte
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copyMem(addr result[1], unsafeAddr idKey, sizeof idKey)
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# ------------------------------------------------------------------------------
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# End
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# ------------------------------------------------------------------------------
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