61 lines
2.1 KiB
Nim
61 lines
2.1 KiB
Nim
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# nimbus-eth1
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# Copyright (c) 2021 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/tables,
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eth/common,
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rocksdb,
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stint,
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../../aristo_desc,
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../aristo_init_common.nim
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type
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RdbInst* = object
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store*: RocksDBInstance ## Rocks DB database handler
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basePath*: string ## Database directory
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# Low level Rocks DB access for bulk store
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envOpt*: rocksdb_envoptions_t
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impOpt*: rocksdb_ingestexternalfileoptions_t
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RdbKey* = array[1 + sizeof VertexID, byte]
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## Sub-table key, <pfx> + VertexID
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RdbTabs* = array[AristoStorageType,Table[VertexID,Blob]]
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## Combined table for caching data to be stored/updated
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const
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BaseFolder* = "nimbus" # Same as for Legacy DB has "backups"
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DataFolder* = "aristo" # Legacy DB has "data"
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BackupFolder* = "history" # Legacy DB has "backups"
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TempFolder* = "tmp" # Not used with legacy DB
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SstCache* = "bulkput" # Rocks DB bulk load file name in temp folder
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# ------------------------------------------------------------------------------
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# Public functions
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# ------------------------------------------------------------------------------
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proc toRdbKey*(vid: VertexID; pfx: AristoStorageType): Rdbkey =
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let vidKey = vid.uint64.toBytesBE
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result[0] = pfx.ord.byte
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copyMem(addr result[1], unsafeAddr vidKey, sizeof vidKey)
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template toOpenArray*(vid: VertexID; pfx: AristoStorageType): openArray[byte] =
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vid.toRdbKey(pfx).toOpenArray(0, sizeof VertexID)
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# ------------------------------------------------------------------------------
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# End
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# ------------------------------------------------------------------------------
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