83 lines
2.8 KiB
Nim
83 lines
2.8 KiB
Nim
# Nimbus
|
|
# Copyright (c) 2018-2024 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
|
|
eth/common,
|
|
stint,
|
|
../../nimbus/sync/[protocol, types]
|
|
|
|
## Stripped down version of `sync/snap/range_desc` in order to decode the
|
|
## snap sync dump samples.
|
|
##
|
|
## While the details of the dumped data have mostly outlived their purpuse,
|
|
## its use as **entropy** data thrown against `Aristo` has still been useful
|
|
## to find/debug tricky DB problems.
|
|
|
|
type
|
|
ByteArray32* = array[32,byte]
|
|
## Used for 32 byte database keys
|
|
|
|
NodeKey* = distinct ByteArray32
|
|
## Hash key without the hash wrapper (as opposed to `NodeTag` which is a
|
|
## number.)
|
|
|
|
NodeTag* = distinct UInt256
|
|
## Trie leaf item, account hash etc. This data type is a representation
|
|
## for a `NodeKey` geared up for arithmetic and comparing keys.
|
|
|
|
PackedAccountRange* = object
|
|
## Re-packed version of `SnapAccountRange`. The reason why repacking is
|
|
## needed is that the `snap/1` protocol uses another RLP encoding than is
|
|
## used for storing in the database. So the `PackedAccount` is `BaseDB`
|
|
## trie compatible.
|
|
accounts*: seq[PackedAccount] ## List of re-packed accounts data
|
|
proof*: seq[SnapProof] ## Boundary proofs
|
|
|
|
PackedAccount* = object
|
|
## In fact, the `snap/1` driver returns the `Account` structure which is
|
|
## unwanted overhead, here.
|
|
accKey*: NodeKey
|
|
accBlob*: Blob
|
|
|
|
AccountSlotsHeader* = object
|
|
## Storage root header
|
|
accKey*: NodeKey ## Owner account, maybe unnecessary
|
|
storageRoot*: Hash256 ## Start of storage tree
|
|
#subRange*: Opt[NodeTagRange] ## Sub-range of slot range covered
|
|
|
|
AccountStorageRange* = object
|
|
## List of storage descriptors, the last `AccountSlots` storage data might
|
|
## be incomplete and the `proof` is needed for proving validity.
|
|
storages*: seq[AccountSlots] ## List of accounts and storage data
|
|
proof*: seq[SnapProof] ## Boundary proofs for last entry
|
|
base*: NodeTag ## Lower limit for last entry w/proof
|
|
|
|
AccountSlots* = object
|
|
## Account storage descriptor
|
|
account*: AccountSlotsHeader
|
|
data*: seq[SnapStorage]
|
|
|
|
|
|
proc to*(tag: NodeTag; T: type Hash256): T =
|
|
## Convert to serialised equivalent
|
|
result.data = tag.UInt256.toBytesBE
|
|
|
|
proc to*(key: Hash256; T: type NodeTag): T =
|
|
## Syntactic sugar
|
|
key.data.NodeKey.to(T)
|
|
|
|
proc to*(key: NodeKey; T: type NodeTag): T =
|
|
## Convert from serialised equivalent
|
|
UInt256.fromBytesBE(key.ByteArray32).T
|
|
|
|
# End
|