mirror of
https://github.com/status-im/nimbus-eth1.git
synced 2025-01-09 20:06:52 +00:00
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.
45 lines
1.6 KiB
Nim
45 lines
1.6 KiB
Nim
# nimbus-eth1
|
|
# Copyright (c) 2023-2024 Status Research & Development GmbH
|
|
# Licensed under either of
|
|
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
|
|
# http://www.apache.org/licenses/LICENSE-2.0)
|
|
# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
|
|
# http://opensource.org/licenses/MIT)
|
|
# at your option. This file may not be copied, modified, or distributed
|
|
# except according to those terms.
|
|
|
|
import
|
|
std/tables,
|
|
results,
|
|
".."/[kvt_desc, kvt_utils]
|
|
|
|
# ------------------------------------------------------------------------------
|
|
# Public functions
|
|
# ------------------------------------------------------------------------------
|
|
|
|
proc deltaReverse*(
|
|
db: KvtDbRef; # Database
|
|
delta: LayerDeltaRef; # Filter to revert
|
|
): LayerDeltaRef =
|
|
## Assemble a reverse filter for the `delta` argument, i.e. changes to the
|
|
## backend that reverse the effect of applying this to the balancer filter.
|
|
## The resulting filter is calculated against the current *unfiltered*
|
|
## backend (excluding optionally installed balancer filters.)
|
|
##
|
|
## If `delta` is `nil`, the result will be `nil` as well.
|
|
if not delta.isNil:
|
|
result = LayerDeltaRef()
|
|
|
|
# Calculate reverse changes for the `sTab[]` structural table
|
|
for key in delta.sTab.keys:
|
|
let rc = db.getUbe key
|
|
if rc.isOk:
|
|
result.sTab[key] = rc.value
|
|
else:
|
|
doAssert rc.error == GetNotFound
|
|
result.sTab[key] = EmptyBlob
|
|
|
|
# ------------------------------------------------------------------------------
|
|
# End
|
|
# ------------------------------------------------------------------------------
|