nimbus-eth1/nimbus/db/aristo/aristo_constants.nim
Jordan Hrycaj 3b306a9689
Aristo: Update unit test suite (#2002)
* Aristo: Update unit test suite

* Aristo/Kvt: Fix iterators

why:
  Generic iterators were not properly updated after backend change

* Aristo: Add sub-trie deletion functionality

why:
  For storage tries linked to an account payload vertex ID, a the
  whole storage trie needs to be deleted with the account.

* Aristo: Reserve vertex ID numbers for static custom state roots

why:
  Static custom state roots may be controlled by an application,
  e.g. for a receipt or a transaction root. The `Aristo` functions
  are agnostic of what the static state roots are when different
  from the internal tree vertex ID 1.

details;
  The `merge()` function applied to a non-static state root (assumed
  to be a storage root) will check the payload of an accounts leaf
  and mark its Merkle keys to be re-checked.

* Aristo: Correct error code symbol

* Aristo: Update error code symbols

* Aristo: Code cosmetics/comments

* Aristo: Fix hashify schedule calculator

why:
  Had a tendency to stop early leaving an incomplete job
2024-02-01 21:27:48 +00:00

66 lines
2.0 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.
{.push raises: [].}
import
std/sets,
eth/[common, trie/nibbles],
./aristo_desc/desc_identifiers
const
EmptyBlob* = seq[byte].default
## Useful shortcut (borrowed from `sync/snap/constants.nim`)
EmptyNibbleSeq* = EmptyBlob.initNibbleRange
## Useful shortcut (borrowed from `sync/snap/constants.nim`)
EmptyVidSeq* = seq[VertexID].default
## Useful shortcut
EmptyVidSet* = EmptyVidSeq.toHashSet
## Useful shortcut
VOID_CODE_HASH* = EMPTY_CODE_HASH
## Equivalent of `nil` for `Account` object code hash
VOID_HASH_KEY* = HashKey()
## Void equivalent for Merkle hash value
VOID_HASH_LABEL* = HashLabel(key: VOID_HASH_KEY)
## Void equivalent for Merkle hash value
VOID_PATH_ID* = PathID()
## Void equivalent for Merkle hash value
EmptyQidPairSeq* = seq[(QueueID,QueueID)].default
## Useful shortcut
DEFAULT_QID_QUEUES* = [
(128, 0), ## Consecutive list of 128 filter slots
( 64, 63), ## Overflow list, 64 filters, skipping 63 filters in-between
( 64, 127), ## ..
( 64, 255)]
SUB_TREE_DISPOSAL_MAX* = 200_000
## Some limit for disposing sub-trees in one go using `delete()`.
LEAST_FREE_VID* = 100
## Vids smaller are used as known state roots and cannot be recycled. Only
## the `VertexID(1)` state root is used by the `Aristo` methods. The other
## numbers smaller than `LEAST_FREE_VID` may be used by application
## functions with fixed assignments of the type of a state root (e.g. for
## a receipt or a transaction root.)
static:
doAssert 1 < LEAST_FREE_VID # must stay away from `VertexID(1)`
# End