92 lines
2.9 KiB
Nim
92 lines
2.9 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.
|
||
|
|
|
||
|
|
## Aristo DB -- Transaction stow/save helper
|
||
|
|
## =========================================
|
||
|
|
##
|
||
|
|
{.push raises: [].}
|
||
|
|
|
||
|
|
import
|
||
|
|
std/options,
|
||
|
|
results,
|
||
|
|
".."/[aristo_desc, aristo_get, aristo_journal, aristo_layers, aristo_hashify]
|
||
|
|
|
||
|
|
# ------------------------------------------------------------------------------
|
||
|
|
# Public functions
|
||
|
|
# ------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
proc txStow*(
|
||
|
|
db: AristoDbRef; # Database
|
||
|
|
nxtFid: Option[FilterID]; # Next filter ID (zero is OK)
|
||
|
|
persistent: bool; # Stage only unless `true`
|
||
|
|
chunkedMpt: bool; # Partial data (e.g. from `snap`)
|
||
|
|
): Result[void,AristoError] =
|
||
|
|
## Worker for `stow()` and `persist()` variants.
|
||
|
|
##
|
||
|
|
if not db.txRef.isNil:
|
||
|
|
return err(TxPendingTx)
|
||
|
|
if 0 < db.stack.len:
|
||
|
|
return err(TxStackGarbled)
|
||
|
|
if persistent and not db.journalUpdateOk():
|
||
|
|
return err(TxBackendNotWritable)
|
||
|
|
|
||
|
|
# Update Merkle hashes (unless disabled)
|
||
|
|
db.hashify().isOkOr:
|
||
|
|
return err(error[1])
|
||
|
|
|
||
|
|
let fwd = db.journalFwdFilter(db.top, chunkedMpt).valueOr:
|
||
|
|
return err(error[1])
|
||
|
|
|
||
|
|
if fwd.isValid:
|
||
|
|
# Merge `top` layer into `roFilter`
|
||
|
|
db.journalMerge(fwd).isOkOr:
|
||
|
|
return err(error[1])
|
||
|
|
|
||
|
|
# Special treatment for `snap` proofs (aka `chunkedMpt`)
|
||
|
|
let final =
|
||
|
|
if chunkedMpt: LayerFinalRef(fRpp: db.top.final.fRpp)
|
||
|
|
else: LayerFinalRef()
|
||
|
|
|
||
|
|
# New empty top layer (probably with `snap` proofs and `vGen` carry over)
|
||
|
|
db.top = LayerRef(
|
||
|
|
delta: LayerDeltaRef(),
|
||
|
|
final: final)
|
||
|
|
if db.roFilter.isValid:
|
||
|
|
db.top.final.vGen = db.roFilter.vGen
|
||
|
|
else:
|
||
|
|
let rc = db.getIdgUbe()
|
||
|
|
if rc.isOk:
|
||
|
|
db.top.final.vGen = rc.value
|
||
|
|
else:
|
||
|
|
# It is OK if there was no `Idg`. Otherwise something serious happened
|
||
|
|
# and there is no way to recover easily.
|
||
|
|
doAssert rc.error == GetIdgNotFound
|
||
|
|
|
||
|
|
if persistent:
|
||
|
|
# Merge `roFiler` into persistent tables
|
||
|
|
? db.journalUpdate nxtFid
|
||
|
|
db.roFilter = FilterRef(nil)
|
||
|
|
|
||
|
|
# Special treatment for `snap` proofs (aka `chunkedMpt`)
|
||
|
|
let final =
|
||
|
|
if chunkedMpt: LayerFinalRef(vGen: db.vGen, fRpp: db.top.final.fRpp)
|
||
|
|
else: LayerFinalRef(vGen: db.vGen)
|
||
|
|
|
||
|
|
# New empty top layer (probably with `snap` proofs carry over)
|
||
|
|
db.top = LayerRef(
|
||
|
|
delta: LayerDeltaRef(),
|
||
|
|
final: final,
|
||
|
|
txUid: db.top.txUid)
|
||
|
|
ok()
|
||
|
|
|
||
|
|
# ------------------------------------------------------------------------------
|
||
|
|
# End
|
||
|
|
# ------------------------------------------------------------------------------
|