68 lines
1.8 KiB
Nim
68 lines
1.8 KiB
Nim
# Nimbus
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# Copyright (c) 2023 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 except
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# according to those terms.
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{.push raises: [].}
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import
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std/os,
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rocksdb, stew/results,
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eth/db/kvstore
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export results, kvstore
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const maxOpenFiles = 512
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type
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RocksStoreRef* = ref object of RootObj
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store*: RocksDBInstance
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tmpDir*: string
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proc get*(db: RocksStoreRef, key: openArray[byte], onData: kvstore.DataProc): KvResult[bool] =
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db.store.get(key, onData)
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proc find*(db: RocksStoreRef, prefix: openArray[byte], onFind: kvstore.KeyValueProc): KvResult[int] =
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raiseAssert "Unimplemented"
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proc put*(db: RocksStoreRef, key, value: openArray[byte]): KvResult[void] =
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db.store.put(key, value)
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proc contains*(db: RocksStoreRef, key: openArray[byte]): KvResult[bool] =
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db.store.contains(key)
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proc del*(db: RocksStoreRef, key: openArray[byte]): KvResult[bool] =
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db.store.del(key)
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proc clear*(db: RocksStoreRef): KvResult[bool] =
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db.store.clear()
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proc close*(db: RocksStoreRef) =
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db.store.close
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proc init*(
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T: type RocksStoreRef, basePath: string, name: string,
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readOnly = false): KvResult[T] =
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let
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dataDir = basePath / name / "data"
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# tmpDir = basePath / name / "tmp" -- notused
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backupsDir = basePath / name / "backups"
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try:
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createDir(dataDir)
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createDir(backupsDir)
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except OSError, IOError:
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return err("rocksdb: cannot create database directory")
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var store: RocksDBInstance
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if (let v = store.init(
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dataDir, backupsDir, readOnly, maxOpenFiles = maxOpenFiles); v.isErr):
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return err(v.error)
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ok(T(store: store))
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