200 Commits

Author SHA1 Message Date
andri lim
33ac53217f
Check invalid ancestor in engine-api and beacon-sync (#2192) 2024-05-17 08:38:46 +07:00
Etan Kissling
c4c37302b1
Introduce wrapper type for EIP-4844 transactions (#2177)
* Introduce wrapper type for EIP-4844 transactions

EIP-4844 blob sidecars are a concept that only exists in the mempool.
After inclusion of a transaction into an execution block, only the
versioned hash within the transaction remains. To improve type safety,
replace the `Transaction.networkPayload` member with a wrapper type
`PooledTransaction` that is used in contexts where blob sidecars exist.

* Bump nimbus-eth2 to 87605d08a7f9cfc3b223bd32143e93a6cdf351ac

* IPv6 'listen-address' in `nimbus_verified_proxy`

* Bump nim-libp2p to 21cbe3a91a70811522554e89e6a791172cebfef2

* Fix beacon_lc_bridge payload conversion and conf.listenAddress type

* Change nimbus_verified_proxy.asExecutionData param to SomeExecutionPayload

* Rerun nph to fix asExecutionData style format

* nimbus_verified_proxy listenAddress

* Use PooledTransaction in nimbus-eth1 tests

---------

Co-authored-by: jangko <jangko128@gmail.com>
2024-05-15 10:07:59 +07:00
Jordan Hrycaj
143f2e99f5
Core db+aristo fixes and tx handling updates (#2164)
* Aristo: Rename journal related sources and functions

why:
  Previously, the naming was hinged on the phrases `fifo`, `filter` etc.
  which reflect the inner workings of cascaded filters. This was
  unfortunate for reading/understanding the source code for actions where
  the focus is the journal as a whole.

* Aristo: Fix buffer overflow (path length truncating error)

* Aristo: Tighten `hikeUp()` stop check, update error code

why:
  Detect dangling vertex links. These are legit with `snap` sync
  processing but not with regular processing.

* Aristo: Raise assert in regular mode `merge()` at a dangling link/edge

why:
  With `snap` sync processing, partial trees are ok and can be amended.
  Not so in regular mode.

  Previously there was only a debug message when a non-legit dangling edge
  was encountered.

* Aristo: Make sure that vertices are copied before modification

why:
  Otherwise vertices from lower layers might also be modified

* Aristo: Fix relaxed mode for validity checker `check()`

* Remove cruft

* Aristo: Update API for transaction handling

details:
+ Split `aristo_tx.nim` into sub-modules
+ Split `forkWith()` into `findTx()` + `forkTx()`
+ Removed `forkTop()`, `forkBase()` (now superseded by new `forkTx()`)

* CoreDb+Aristo: Fix initialiser (missing methods)
2024-05-03 17:38:17 +00:00
Jordan Hrycaj
7d9e1d8607
Misc updates for full sync (#2140)
* Code cosmetics

* Aristo+Kvt: Fix api wrappers

why:
  Api setup killed the backend descriptor when backend mapping was
  disabled.

* Aristo: Implement masked profiling entries

why:
  Database backend should be listed but not counted in tally

* CoreDb: Simplify backend() methods

why:
  DBMS backend access Was provided very early and over engineered. Now
  there are only two backend machines, one for `Kvt` and the other one
  for an `Mpt` available only via new API.

* CoreDb: Code cleanup regarding descriptor types

* CoreDb: Refactor/redefine `persistent()` methods

why:
  There were `persistent()` methods for any type of caching storage
  facilities `Kvt`, `Mpt`, `Phk`, and `Acc`. Now there is only a single
  `persistent()` method storing all facilities in tandem (similar to
  how transactions work.)

  For non shared `Kvt` tables, there is now an extra storage method
  `saveOffSite()`.

* CoreDb lingo update: `trie` becomes `column`

why:
  Notion of a `trie` is pretty much hidden by the new `CoreDb` api.
  Revealed are sort of database columns for accounts an storage data,
  any of which have an internal state represented by a Keccack hash.
  So a `trie` or `MPT` becomes a `column` and a `rootHash` becomes a
  column state.

* Aristo: rename backend filed `filters` => `journal`

* Update full sync logging

details:
  + Disable eth handler noise while syncing
  + Log journal depth (if available)

* Fix copyright year

* Fix cruft and unwanted imports
2024-04-19 18:37:27 +00:00
Jordan Hrycaj
dac7a2cbe1
Providing eth68 stubs while setting eth67 as default (#2129)
* Suspend `snap` sync tests

why:
  Snap needs to be updated. While this is not done, tests are obsolete
  and eat up memory resources only

* Suspend rocks DB timing tests

why:
  Currently of no use for general test suite.

* Mothballed unused evm code for opportunistic DB handling

why:
  Needs to be refactored anyway. Uses hard coded protocol dependencies.

* Update `eth` protocol configuration

why:
 + new upcoming version `eth68`
 + prepare for eth-multi protocol stack support

* Strip the `legacy_` prefix from eth66 compiler flag variable

why:
  Being it is an oddity having `eth67_enabled`, `eth68_enabled`, and
  `legacy_eth_66_enabled`.

* Providing eth68 stubs

* Fix copyright year

* Fix eth68 stub method name
2024-04-12 11:21:17 +00:00
BiKangNing
dce00079c4
Remove redundant words (#2100)
* Remove redundant words

Signed-off-by: depthlending <bikangning@outlook.com>

* Fix copyright year

---------

Signed-off-by: depthlending <bikangning@outlook.com>
Co-authored-by: jangko <jangko128@gmail.com>
2024-03-26 07:10:46 +07:00
andri lim
c41206be39
Fix styles and reduce compiler warnings (#2086)
* Fix styles and reduce compiler warnings

* Fix copyright year
2024-03-20 14:35:38 +07:00
web3-developer
799acf301d
Added support for namespaces to RocksDb kvstore. (#2066)
* Add new RocksNamespaceRef type and remove backups and readonly support from RocksDb KvStore.

* Bump nim-rocksdb to fc2ba4a836b6b47ae1b17d1c45801c7e06585e19

* Fix tests.

* Fix copyright notice.
2024-03-12 11:04:46 +08:00
web3-developer
11691c33e9
Update Nimbus codebase to use the new nim-rocksdb API. (#2054)
* Bump nim-rocksdb.

* Update codebase to use latest nim-rocksdb API.

* Update copyright notices.

* Fix memory leak due to allocCStringArray without deallocCStringArray.

* Improve kvstore_rocksdb code.

* Refactor and cleanup RocksStoreRef.

* Update nim-rocksdb submodule to latest.
2024-03-05 12:54:42 +08:00
andri lim
6ff2edc416
Fix styles (#2046)
* Fix styles

* Fix copyright year
2024-02-21 23:04:59 +07:00
andri lim
7c1af9a78f
Add style check to config.nims and fix styles in source code (#2038)
* Add style check to config.nims and fix styles in source code

* Fix copyright year
2024-02-20 10:07:38 +07:00
andri lim
402a3eda73
Refactor protocol handlers exception handling (#2037)
* Refactor protocol handlers exception handling

* Fix copyright year
2024-02-19 18:46:48 +07:00
andri lim
2a1386e46a
Bump nim-eth: Fix improper yield usage (#2036) 2024-02-19 16:33:55 +07:00
andri lim
bea558740f
Reduce compiler warnings (#2030)
* Reduce compiler warnings

* Reduce compiler warnings in test code
2024-02-16 16:08:07 +07:00
andri lim
966adcb124
Prepare source code for nim v2 CI (#2028)
* Prepare source code for nim v2 CI

* Fix copyright year
2024-02-15 09:57:05 +07:00
andri lim
8a40521cbe
Fix 'trustedSetupFile' is not accessible for type NimbusConf.cmd == import (#2008) 2024-02-04 22:45:54 +07:00
andri lim
a441ec3cb1
Remove obsolete select_backend and fix simulators CI (#2007)
* Remove obsolete select_backend

* Fix copyright year
2024-02-04 21:28:20 +07:00
andri lim
09f95962ef
Allow dbBackend == none to compile (#1996)
* Allow dbBackend == none to compile

* Fix copyright year
2024-01-31 18:55:30 +07:00
kdeme
9875eb11d6
Bumps for chronos, nim-eth and unittest2 and future callback fixes 2024-01-19 13:37:14 +01:00
Jordan Hrycaj
4feaa2cfab
Aristo db update for short nodes key edge cases (#1887)
* Aristo: Provide key-value list signature calculator

detail:
  Simple wrappers around `Aristo` core functionality

* Update new API for `CoreDb`

details:
+ Renamed new API functions `contains()` => `hasKey()` or `hasPath()`
  which disables the `in` operator on non-boolean 	`contains()` functions
+ The functions `get()` and `fetch()` always return a not-found error if
  there is no item, available. The new functions `getOrEmpty()` and
  `mergeOrEmpty()` return an an empty `Blob` if there is no such key
  found.

* Rewrite `core_apps.nim` using new API from `CoreDb`

* Use `Aristo` functionality for calculating Merkle signatures

details:
  For debugging, the `VerifyAristoForMerkleRootCalc` can be set so
  that `Aristo` results will be verified against the legacy versions.

* Provide general interface for Merkle signing key-value tables

details:
  Export `Aristo` wrappers

* Activate `CoreDb` tests

why:
  Now, API seems to be stable enough for general tests.

* Update `toHex()` usage

why:
  Byteutils' `toHex()` is superior to `toSeq.mapIt(it.toHex(2)).join`

* Split `aristo_transcode` => `aristo_serialise` + `aristo_blobify`

why:
+ Different modules for different purposes
+ `aristo_serialise`: RLP encoding/decoding
+ `aristo_blobify`: Aristo database encoding/decoding

* Compacted representation of small nodes' links instead of Keccak hashes

why:
  Ethereum MPTs use Keccak hashes as node links if the size of an RLP
  encoded node is at least 32 bytes. Otherwise, the RLP encoded node
  value is used as a pseudo node link (rather than a hash.) Such a node
  is nor stored on key-value database. Rather the RLP encoded node value
  is stored instead of a lode link in a parent node instead. Only for
  the root hash, the top level node is always referred to by the hash.

  This feature needed an abstraction of the `HashKey` object which is now
  either a hash or a blob of length at most 31 bytes. This leaves two
  ways of representing an empty/void `HashKey` type, either as an empty
  blob of zero length, or the hash of an empty blob.

* Update `CoreDb` interface (mainly reducing logger noise)

* Fix copyright years (to make `Lint` happy)
2023-11-08 12:18:32 +00:00
jangko
b0000eed8b
Add check copyright year linter to CI 2023-11-01 10:41:20 +07:00
jangko
0ee448c1eb
Fix ForkID calculation 2023-10-25 11:10:01 +07:00
andri lim
c02c987b3e
Beacon skeleton works with ttdPassed=true flag too (#1826) 2023-10-19 10:29:06 +07:00
andri lim
04c7ed8ec9
Change EthTime from std.Time to distinct uint64 (#1820)
* Change EthTime from std.Time to distinct uint64

* Bump nimbus-eth2
2023-10-18 09:16:11 +07:00
Jordan Hrycaj
786263c0b8
Core db update api and fix tracer methods (#1816)
* CoreDB: Re-org API

details:
  Legacy API internally uses vertex ID for root node abstraction

* Cosmetics: Move some unit test helpers to common sub-directory

* Extract constant from `accouns_cache.nim` => `constants.nim`

* Fix tracer methods

why:
  Logger dump data were wrongly dumped from the production database. This
  caused an assert exception when iterating over the persistent database
  (instead of the memory logger.) This event in turn was enabled after
  fixing another inconsistency which just set up an empty iterator. Unit
  tests failed to detect that.
2023-10-11 20:09:11 +01:00
andri lim
501d8a369a
Add BeaconSync reorg tests (#1782)
* Add BeaconSync reorg tests

* Fix redefinition error in tx_sender.nim
2023-09-30 19:20:29 +07:00
andri lim
e8d59bc7a7
Working prototype of beacon downloader (#1780)
* Working prototype of beacon downloader

* Use KeyedQueue for setSyncTarget queue

* Convert MergeTracker and PayloadQueue to non ref object
2023-09-28 13:20:12 +07:00
Jordan Hrycaj
6d132811ba
Core db update providing additional results code interface (#1776)
* Split `core_db/base.nim` into several sources

* Rename `core_db/legacy.nim` => `core_db/legacy_db.nim`

* Update `CoreDb` API, dual methods returning `Result[]` or plain value

detail:
  Plain value methods implemet the legacy API, they defect on error results

* Redesign `CoreDB` direct backend access

why:
  Made the `backend` directive integral part of the API

* Discontinue providing unused or otherwise available functions

details:
+ setTransactionID() removed, not used and not easily replicable in Aristo
+ maybeGet() removed, available via direct backend access
+ newPhk() removed, never used & was experimental anyway

* Update/reorg backend API

why:
+ Added error print function `$$()`
+ General descriptor completion (and optional validation) via `bless()`

* Update `Aristo`/`Kvt` exception handling

why:
  Avoid `CatchableError` exceptions, rather pass them as error code where
  appropriate.

* More `CoreDB` compliant `Aristo` and `Kvt` methods

details:
+ Providing functions like `contains()`, `getVtxRc()` (returns `Result[]`).
+ Additional error code: `NotImplemented`

* Rewrite/reorg of Aristo DB constructor

why:
  Previously used global object `DefaultQidLayoutRef` as default
  initialiser. This object was created at compile time which lead to
  non-gc safe functions.

* Update nimbus/db/core_db/legacy_db.nim

Co-authored-by: Kim De Mey <kim.demey@gmail.com>

* Update nimbus/db/aristo/aristo_transcode.nim

Co-authored-by: Kim De Mey <kim.demey@gmail.com>

* Update nimbus/db/core_db/legacy_db.nim

Co-authored-by: Kim De Mey <kim.demey@gmail.com>

---------

Co-authored-by: Kim De Mey <kim.demey@gmail.com>
2023-09-26 10:21:13 +01:00
jangko
a07247b547
Remove dead code from beacon skeleton 2023-09-25 17:21:59 +07:00
andri lim
7af9e3dc53
Refactor beacon skeleton (#1761)
* Fix unlisted exception due to recent modification in CoreDB interface

* Refactor beacon skeleton

* More unlisted exception fix
2023-09-19 11:52:28 +07:00
Jordan Hrycaj
6bc55d4e6f
Core db aristo and kvt updates preparing for integration (#1760)
* Kvt: Implemented multi-descriptor access on the same backend

why:
  This behaviour mirrors the one of Aristo and can be used for
  simultaneous transactions on Aristo + Kvt

* Kvt: Update database iterators

why:
  Forgot to run on the top layer first

* Kvt: Misc fixes

* Aristo, use `openArray[byte]` rather than `Blob` in prototype

* Aristo, by default hashify right after cloning descriptor

why:
  Typically, a completed descriptor is expected after cloning. Hashing
  can be suppressed by argument flag.

* Aristo provides `replicate()` iterator, similar to legacy `replicate()`

* Aristo API fixes and updates

* CoreDB: Rename `legacy_persistent` => `legacy_rocksdb`

why:
  More systematic, will be in line with Aristo DB which might have
  more than one persistent backends

* CoreDB: Prettify API sources

why:
  Better to read and maintain

details:
  Annotating with custom pragmas which cleans up the prototypes

* CoreDB: Update MPT/put() prototype allowing `CatchableError`

why:
  Will be needed for Aristo API (legacy is OK with `RlpError`)
2023-09-18 21:20:28 +01:00
andri lim
56215ed83f
Bump stint to v2.0: new array backend (#1747)
* Bump stint to v2.0: new array backend
2023-09-13 09:32:38 +07:00
andri lim
948c94763c
Bump nim-eth: Add closeWait to EthereumNode (#1742) 2023-09-09 13:54:58 +07:00
andri lim
cf9553196e
When memory backend selected, no snap sync (#1738) 2023-09-08 15:21:59 +07:00
jangko
5fb0fc65ba
Implement beacon sync stub
- Prepare a test env for beacon sync in engine api simulator.
- Wiring beacon sync to the rest of subsystems.
2023-09-07 08:49:31 +07:00
jangko
92713ef326
Fix rpc.sendRawTransaction and txPool: reject invalid transaction earlier 2023-08-21 09:11:10 +07:00
Jordan Hrycaj
221e6c9e2f
Unified database frontend integration (#1670)
* Nimbus folder environment update

details:
* Integrated `CoreDbRef` for the sources in the `nimbus` sub-folder.
* The `nimbus` program does not compile yet as it needs the updates
  in the parallel `stateless` sub-folder.

* Stateless environment update

details:
* Integrated `CoreDbRef` for the sources in the `stateless` sub-folder.
* The `nimbus` program compiles now.

* Premix environment update

details:
* Integrated `CoreDbRef` for the sources in the `premix` sub-folder.

* Fluffy environment update

details:
* Integrated `CoreDbRef` for the sources in the `fluffy` sub-folder.

* Tools environment update

details:
* Integrated `CoreDbRef` for the sources in the `tools` sub-folder.

* Nodocker environment update

details:
* Integrated `CoreDbRef` for the sources in the
  `hive_integration/nodocker` sub-folder.

* Tests environment update

details:
* Integrated `CoreDbRef` for the sources in the `tests` sub-folder.
* The unit tests compile and run cleanly now.

* Generalise `CoreDbRef` to any `select_backend` supported database

why:
  Generalisation was just missed due to overcoming some compiler oddity
  which was tied to rocksdb for testing.

* Suppress compiler warning for `newChainDB()`

why:
  Warning was added to this function which must be wrapped so that
  any `CatchableError` is re-raised as `Defect`.

* Split off persistent `CoreDbRef` constructor into separate file

why:
  This allows to compile a memory only database version without linking
  the backend library.

* Use memory `CoreDbRef` database by default

detail:
 Persistent DB constructor needs to import `db/core_db/persistent

why:
 Most tests use memory DB anyway. This avoids linking `-lrocksdb` or
 any other backend by default.

* fix `toLegacyBackend()` availability check

why:
  got garbled after memory/persistent split.

* Clarify raw access to MPT for snap sync handler

why:
  Logically, `kvt` is not the raw access for the hexary trie (although
  this holds for the legacy database)
2023-08-04 12:10:09 +01:00
Jordan Hrycaj
322f1c2e9e
Unified database frontend (#1661)
* Remove 32bit os support from `custom_network` unit test

also:
* Fix compilation annoyance #1648
* Fix unit test on Kiln (changed `merge` logic?)

* Hide unused sources do not compile

why:
* Get them out of the way before major update
* Import and function prototype mismatch -- maybe some changes got out
  of scope.

* Re-implemented `db_chain` as `core_db`

why:
  Hiding `TrieDatabaseRef` and `HexaryTrie` by default allows to replace
  the current db wrapper by some other one, e.g. Aristo

* Support compiler exception warnings for CoreDbRef base methods.

* Allow `pairs()` iterator on all memory based key-value tables

why:
  Previously only available for capture recorder.

* Backport `chain_db.nim` changes into its re-implementation `core_apps.nim`

* Fix exception annotation
2023-07-31 14:43:38 +01:00
jangko
ff1a45e095
fix shanghai withdrawal validation
previously, the withdrawal validation is in process_block only,
but the one in persist block, which is also used in synchronizer
is not validated properly.
2023-06-26 07:46:09 +07:00
andri lim
26a8759c34
implementation of EIP-4844: Shard Blob Transactions (#1440)
* EIP-4844: add pointEvaluation precompiled contract

* EIP-4844: validate transaction and block header

* EIP-4844: implement DataHash Op Code

* EIP-4844: txPool support excessDataGas calculation

* EIP-4844: make sure tx produce correct txHash

* EIP-4844: node should not automatically broadcast blob tx to it's peers

* EIP-4844: add test cases

* EIP-4844: add EIP-4844 support to t8n tool

* EIP-4844: update nim-eth to branch eip-4844

* fix t8n transaction decoding

* add t8n test data

* EIP-4844: fix blobHash opcode

* disable blobHash test when evmc_enable
2023-06-24 20:56:44 +07:00
Jordan Hrycaj
0308dfac4f
Aristo db address sup trie items properly (#1600)
* Fix include

why:
  Eth67 not default yet so that got missed

* Rename `LeafKey` => `LeafTie`

why:
  Name is a pen picture of what this object is for. Also, it avoids the
  ubiquitous term `key`.

* Provided `getOrVoid()` wrapper for `getOrDefault()`

also:
  Provide `isValid()` syntactic sugar for `.isNil.not`, `!= 0` etc.
  Reorg descriptor source, split into sub-sources

* Bundled `NodeKey` objects with root ID and called it `HashLabel`

why:
  `NodeKey` (aka repurposed Hash265) objects are unique only within a
  particular sub-trie (e.g. storage slots) which are kept separated
  (i.e non-interleaved) by design. This is not applied to the backend
  as the map VertexID->NodeKey labelling the nodes needs not be injective.

  For the in-memory database (transaction) layers, the injective map
  VertexID->(VertexID,NodeKey) is used where the first field of the image
  tuple is the root ID of the sub-trie the `NodeKey` object is valid. So
  identical storage tries for different accounts can be represented.
2023-06-12 14:48:47 +01:00
jangko
8700d8b1e1
reduce compiler warnings 2023-06-12 12:58:53 +07:00
jangko
67aaf92c1d
bump submodules 2023-06-07 18:12:02 +07:00
Jordan Hrycaj
4c865ec884
Snap sync update pivot updating via rpc (#1583)
* Unit tests update, code cosmetics

* Fix segfault with zombie handling

why:
  In order to save memory, the data records of zombie entries are removed
  and only the key (aka peer node) is kept. Consequently, logging these
  zombies can only be done by the key.

* Allow to accept V2 payload without `shanghaiTime` set while syncing

why:
  Currently, `shanghaiTime` is missing (alt least) while snap syncing. So
  beacon node headers can be processed regardless. Normal (aka strict)
  processing will be automatically restored when leaving snap sync mode.
2023-05-16 14:52:44 +01:00
Kim De Mey
408394a2bd
Bump nim-eth and remove unneeded Defect raises (#1575) 2023-05-10 18:04:35 +02:00
Jordan Hrycaj
e1369a7c25
Improve full sync part behaviour 4 snap sync suite (#1564)
* Set maximum time for nodes to be banned.

why:
  Useless nodes are marked zombies and banned. They a kept in a table
  until flushed out by new connections. This works well if there are many
  connections. For the case that there are a few only, a maximum time is
  set. When expired, zombies are flushed automatically.

* Suspend full sync while block number at beacon block

details:
  Also allows to use external setting from file (2nd line)

* Resume state at full sync after restart (if any)
2023-04-26 16:46:42 +01:00
Jordan Hrycaj
68b2448ce1
Snap sync cosmetic code update (#1563)
* Relocate full sync descriptors from global `worker_desc.nim` to local pass

why:
  These settings are needed only for the full sync pass.

* Rename `pivotAccountsCoverage*()` => `accountsCoverage*()`

details:
  Extract from `worker_desc.nim` into separate source file.

* Relocate snap sync sub-descriptors

details:
  ..from global `worker_desc.nim` to local pass module `snap_pass_desc.nam`.

* Rename `SnapPivotRef` => `SnapPassPivotRef`

* Mostly removed `SnapPass` prefix from object type names

why:
  These objects are solely used on the snap pass.
2023-04-25 17:34:48 +01:00
Jordan Hrycaj
d6ee672ba5
Fix pivot setup after switch to full sync (#1562)
* Cosmetics, update logging, docu

* Fix pivot hand-over after switch to full sync

why:
  Got garbled after code clean up
2023-04-25 13:24:32 +01:00
Jordan Hrycaj
c5e895aaab
Code reorg 4 snap sync suite (#1560)
* Rename `playXXX` => `passXXX`

why:
  Better purpose match

* Code massage, log message updates

* Moved `ticker.nim` to `misc` folder to be used the same by full and snap sync

why:
  Simplifies maintenance

* Move `worker/pivot*` => `worker/pass/pass_snap/*`

why:
  better for maintenance

* Moved helper source file => `pass/pass_snap/helper`

* Renamed ComError => GetError, `worker/com/` => `worker/get/`

* Keep ticker enable flag in worker descriptor

why:
  This allows to pass this flag with the descriptor and not an extra
  function argument when calling the setup function.

* Extracted setup/release code from `worker.nim` => `pass/pass_init.nim`
2023-04-24 21:24:07 +01:00
Jordan Hrycaj
f40a066cc6
Update snap sync ready to succeed at lab test (#1556)
* Extract RocksDB timing tests from snap unit tests as separate module

why:
  Declutter, make space for more snap related unit tests.

* Renamed `undumpNextGroup()` => `undumpBlocks()`

why:
  Source file name is called `undump_blocks.nim` which should be sort
  of in sync with the method name(s).

* Implement snap/1 server method `getByteCodes()`

* Implement snap/1 client method `getByteCodes()`

* Implement faculty for handling contract code fetching via snap/1

* Provide persistent storage for contract code records

* Implement contract code snap sync fetch & store

* Code massage, cosmetics

* Unit tests for verifying snap sync snapshot dump

details:
  Use `undump_kvp.dumpAllDb()` to dump any database.
2023-04-21 22:11:04 +01:00