mirror of
https://github.com/status-im/nimbus-eth1.git
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5a5cc6295e
* bump rockdb * Rename `KVT` objects related to filters according to `Aristo` naming details: filter* => delta* roFilter => balancer * Compulsory error handling if `persistent()` fails * Add return code to `reCentre()` why: Might eventually fail if re-centring is blocked. Some logic will be added in subsequent patch sets. * Add column families from earlier session to rocksdb in opening procedure why: All previously used CFs must be declared when re-opening an existing database. * Update `init()` and add rocksdb `reinit()` methods for changing parameters why: Opening a set column families (with different open options) must span at least the ones that are already on disk. * Provide write-trigger-event interface into `Aristo` backend why: This allows to save data from a guest application (think `KVT`) to get synced with the write cycle so the guest and `Aristo` save all atomically. * Use `KVT` with new column family interface from `Aristo` * Remove obsolete guest interface * Implement `KVT` piggyback on `Aristo` backend * CoreDb: Add separate `KVT`/`Aristo` backend mode for debugging * Remove `rocks_db` import from `persist()` function why: Some systems (i.p `fluffy` and friends) use the `Aristo` memory backend emulation and do not link against rocksdb when building the application. So this should fix that problem.
73 lines
2.4 KiB
Nim
73 lines
2.4 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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{.push raises: [].}
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import
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../kvt_desc,
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../kvt_desc/desc_backend
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const
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verifyIxId = true # and false
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## Enforce session tracking
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type
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BackendType* = enum
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BackendVoid = 0 ## For providing backend-less constructor
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BackendMemory ## Same as Aristo
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BackendRocksDB ## Same as Aristo
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BackendRdbTriggered ## Piggybacked on remote write session
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TypedBackendRef* = ref TypedBackendObj
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TypedBackendObj* = object of BackendObj
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beKind*: BackendType ## Backend type identifier
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when verifyIxId:
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txGen: uint ## Transaction ID generator (for debugging)
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txId: uint ## Active transaction ID (for debugging)
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TypedPutHdlRef* = ref object of PutHdlRef
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error*: KvtError ## Track error while collecting transaction
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info*: string ## Error description (if any)
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when verifyIxId:
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txId: uint ## Transaction ID (for debugging)
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# ------------------------------------------------------------------------------
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# Public helpers
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# ------------------------------------------------------------------------------
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proc beginSession*(hdl: TypedPutHdlRef; db: TypedBackendRef) =
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when verifyIxId:
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doAssert db.txId == 0
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if db.txGen == 0:
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db.txGen = 1
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db.txId = db.txGen
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hdl.txId = db.txGen
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db.txGen.inc
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proc verifySession*(hdl: TypedPutHdlRef; db: TypedBackendRef) =
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when verifyIxId:
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doAssert db.txId == hdl.txId
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proc finishSession*(hdl: TypedPutHdlRef; db: TypedBackendRef) =
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when verifyIxId:
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doAssert db.txId == hdl.txId
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db.txId = 0
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proc init*(trg: var TypedBackendObj; src: TypedBackendObj) =
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desc_backend.init(trg, src)
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trg.beKind = src.beKind
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when verifyIxId:
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trg.txGen = src.txGen
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trg.txId = src.txId
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# ------------------------------------------------------------------------------
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# End
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# ------------------------------------------------------------------------------
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