Commit Graph

104 Commits

Author SHA1 Message Date
andri lim 4fa3756860
Convert GasInt to uint64, bump nim-eth and nimbus-eth2 (#2461)
* Convert GasInt to uint64, bump nim-eth and nimbus-eth2

* Bump nimbus-eth2

* int64.high.GasInt instead of 0x7fffffffffffffff.GasInt
2024-07-07 06:52:11 +00:00
andri lim 740882d8ce
Import forked_chain_test in all_tests (#2433) 2024-07-01 09:57:42 +07:00
andri lim b751d3adee
Combine smaller tests into bigger one (#2425)
1. test_state_db and test_ledger -> test_ledger.
   They are the same thing now.
2. stack, memory, code_stream, gas_meter, misc,
   overflow -> test_evm_support.
   They are small tests and fall into the same area.
2024-06-29 08:57:30 +07:00
andri lim 44deff9b28
Enable test_txpool by disabling failing cases (#2421)
* Enable test_txpool by disabling failing cases

Because we cannot use goerli replay to feed the txpool anymore,
we use only a list of transactions.

But some test cases still failing because it requires block state
replay.

* Fix tx info
2024-06-28 11:53:25 +07:00
andri lim b80521a84d
ForkedChain become ForkedChainRef (#2417)
* ForkedChain become ForkedChainRef

It will be shared between engine API, RPC, and txPool

* Fix ForkedChainRef constructor
2024-06-27 12:54:52 +07:00
Jordan Hrycaj 51f02090b8
Aristo uses pre classified tree types (#2385)
* Remove unused `merge*()` functions (for production)

details:
  Some functionality moved to test suite

* Make sure that only `AccountData` leaf type is exactly used on VertexID(1)

* clean up payload type

* Provide dedicated functions for merging accounts and storage trees

why:
  Storage trees are always linked to an account, so there is no need
  for an application to fiddle about (e.e. creating, re-cycling) with
  storage tree vertex IDs.

* CoreDb: Disable tracer functionality

why:
  Must be updated to accommodate new/changed `Aristo` functions.

* CoreDb: Use new `mergeXXX()` functions

why:
  Makes explicit vertex ID management obsolete for creating new
  storage trees.

* Remove `mergePayload()` and other cruft from API, `aristo_merge`, etc.

* clean up merge functions

details:
  The merge implementation `mergePayloadImpl()` does not need to be super
  generic anymore as all the edge cases are covered by the specialised
  functions `mergeAccountPayload()`, `mergeGenericData()`, and
  `mergeStorageData()`.

* No tracer available at the moment, so disable offending tests
2024-06-18 11:14:02 +00:00
andri lim a6960c3d0a
Enable test_accounts_cache (#2373)
The module name is a misnomer, because AccountsCache have been
replaced by LedgerRef. But the test still applicable.

Instead of replaying unsupported goerli blocks,
we generate our own transactions and block.
2024-06-17 14:19:12 +02:00
tersec e1bb65fdfa
rm PoW hash function and validation support (#2372) 2024-06-16 10:22:06 +07:00
andri lim 689834517b
Enable test_blockchain_json by disable some problematic cases (#2346) 2024-06-13 09:19:07 +00:00
andri lim 4497b5f4f1
Enable test_tracer_json (#2326) 2024-06-08 11:36:51 +00:00
web3-developer db8c5b90bd
Cleanup stateless and block witness code. (#2295)
* Cleanup unneeded stateless and block witness code. Keeping MultiKeys which is used in the eth_getProofsByBlockNumber RPC endpoint which is needed for the Fluffy state network bridge.

* Rename generateWitness flag to collectWitnessData to better describe what the flag does. We only collect the keys of the touched accounts and storage slots but no block witness generation is supported for now.

* Move remaining stateless code into nimbus directory.

* Add vmstate parameter to ChainRef to fix test.

* Exclude *.in from check copyright year

---------

Co-authored-by: jangko <jangko128@gmail.com>
2024-06-08 15:05:00 +07:00
tersec 4e50b05564
re-disable test_tracer_json (#2320) 2024-06-07 13:29:55 +00:00
Jordan Hrycaj 392088e5e9
Coredb fix storage tree issues (#2317)
* Code cosmetics

* Re-org `aristo_merge`, internally split into sub-modules

why:
  Became a burden for maintenance because it hosts two different
  functionalities under the same merge paradigm: account/data merge
  and snap proof merge where the latter produces a partial trie.

* Fix CoreDb tracer

* Ledger: fix potential account vs. storage tree sync problems

* Remove bound on the size of removable whole storage trees

* Activate `test_tracer_json`
2024-06-07 10:56:31 +00:00
tersec 0f6c8f6e6a
enable JWT auth tests (#2312) 2024-06-07 09:01:45 +07:00
Jordan Hrycaj 1e65093b3e
Remove obsolete tests (#2307)
* Remove `test_sync_snap`

why:
  Snap sync needs to be re-factored. All the interesting database parts
  from this test suite has been recycled into `Aristo`

* Remove `test_rocksdb_timing`

* Update `all_tests`
2024-06-06 09:29:38 +00:00
Jacek Sieka 32c7fe74be
Remove keyed_queue rlp support (#2300)
It's unused and causing trouble because of unhandled exception effects -
if we were to use it, it would need re-implementation such that it
doesn't reallocate the whole queue on writing.
2024-06-06 00:01:18 +02:00
Jordan Hrycaj e9eae4df70
Core db disable legacy api n remove distinct tries (#2299)
* CoreDb: Remove crufty second/off-site KVT

why:
  Was used to allow late `Clique` to store directly to disk

* CoreDb: Remove prune flag related functionality

why:
  Is completely legacy stuff

* CoreDb: Remove dependence on legacy API (tests unsupported yet)

why:
  Does not fully support Aristo

* Re-factoring `state_db` using new API

details:
  Only minimum changes needed to compile `nimbus`

* Update tests and aux modules

* Turn off legacy API and remove `distinct_tries`

comment:
  The legacy API has now cruft status, will be removed soon

* Fix copyright years

* Update rpc for verified proxy

---------

Co-authored-by: Jacek Sieka <jacek@status.im>
2024-06-05 20:52:04 +00:00
Jordan Hrycaj 0f430c70fd
Aristo avoid storage trie update race conditions (#2251)
* Update TDD suite logger output format choices

why:
  New format is not practical for TDD as it just dumps data across a wide
  range (considerably larder than 80 columns.)

  So the new format can be turned on by function argument.

* Update unit tests samples configuration

why:
  Slightly changed the way to find the `era1` directory

* Remove compiler warnings (fix deprecated expressions and phrases)

* Update `Aristo` debugging tools

* Always update the `storageID` field of account leaf vertices

why:
  Storage tries are weekly linked to an account leaf object in that
  the `storageID` field is updated by the application.

  Previously, `Aristo` verified that leaf objects make sense when passed
  to the database. As a consequence
  * the database was inconsistent for a short while
  * the burden for correctness was all on the application which led
    to delayed error handling which is hard to debug.

  So `Aristo` will internally update the account leaf objects so that
  there are no race conditions due to the storage trie handling

* Aristo: Let `stow()`/`persist()` bail out unless there is a `VertexID(1)`

why:
  The journal and filter logic depends on the hash of the `VertexID(1)`
  which is commonly known as the state root. This implies that all
  changes to the database are somehow related to that.

* Make sure that a `Ledger` account does not overwrite the storage trie reference

why:
  Due to the abstraction of a sub-trie (now referred to as column with a
  hash describing its state) there was a weakness in the `Aristo` handler
  where an account leaf could be overwritten though changing the validity
  of the database. This has been changed and the database will now reject
  such changes.

  This patch fixes the behaviour on the application layer. In particular,
  the column handle returned by the `CoreDb` needs to be updated by
  the `Aristo` database state. This mitigates the problem that a storage
  trie might have vanished or re-apperaed with a different vertex ID.

* Fix sub-trie deletion test

why:
  Was originally hinged on `VertexID(1)` which cannot be wholesale
  deleted anymore after the last Aristo update. Also, running with
  `VertexID(2)` needs an artificial `VertexID(1)` for making `stow()`
  or `persist()` work.

* Cosmetics

* Activate `test_generalstate_json`

* Temporarily `deactivate test_tracer_json`

* Fix copyright header

---------

Co-authored-by: jordan <jordan@dry.pudding>
Co-authored-by: Jacek Sieka <jacek@status.im>
2024-05-30 17:48:38 +00:00
andri lim 27ea571c8f
Enable test_txpool2 independetly from test_txpool (#2246) 2024-05-30 12:11:41 +02:00
andri lim 4b8219a0dd
Enable test_state_db (#2244)
* Make test_state_db compilable

* Enable test_state_db
2024-05-30 07:44:52 +02:00
Jordan Hrycaj 3a62250d04
Make test op memory work again (#2236)
* Remove crufty `pruneTrie` arguments

* Replaced legacy `distinct_trie` logic by new `ledger` functionality

why:
  The module `distinct_trie` is supported by `Aristo` in trivial cases.

* Activate `test_op_memory`
2024-05-28 14:24:10 +00:00
Jacek Sieka 08e98eb385
restore a few tests, cleanup (#2234)
* remove `compensateLegacySetup`, `localDbOnly`
* enable trivially fixable tests
2024-05-28 14:49:35 +02:00
tersec f932c8df22
rm some proof of work mining support (#2227) 2024-05-27 21:49:07 +02:00
Jordan Hrycaj ee9aea171d
Culling legacy DB and accounts cache (#2197)
details:
+ Compiles nimbus all_tests
+ Failing tests have been commented out
2024-05-20 10:17:51 +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
web3-developer 332d294e77
Storage of block witnesses (#1986)
* Added procs to get and store block witness in db and add generate-witness cli flag.

* Completed initial implementation of block witness storage.

* Added test to verify witness is persisted to db after call to persistBlock.

* Update getBlockWitness to return witness using Result type.

* Make generate witness parameter hidden.
2024-02-13 17:49:41 +08:00
Jordan Hrycaj 9c37e73ff7
Core db tests supersedes part of retired custom network tests (#2015)
* Remove custom block chain unit tests

why:
  The custom block chain unit test functionality is superseded by
  `test_coredb`.

  All the custom block chains used here are hopelessly out of date and
  the configs were never updated regarding fork and ttd settings (while
  the production code has moved on.)

* CoreDb: Update unit tests suite

details:
  Can accommodate non-built in network dumps. Inherited some functionality
  from the now retired `test_custom_network` test.
2024-02-09 13:30:07 +00:00
web3-developer 48630ccb03
Experimental RPC endpoints for generating block witnesses (#1977)
* Completed draft implementation of witness JSON-RPC endpoints for portal network bridge.

* Updated Nimbus RPC configuration to support enabling experimental endpoints.

* Moved witness verification tests.

* Added json test for getProof.

* Added main procs to new tests to fix test suite.

* Added getBlockWitness test to blockchain json test suite.

* Added tests for experimental RPC endpoints and improved the API to support returning state proofs from before or after block execution.

* Correctly rollback transaction in getBlockWitness proc.
2024-01-22 17:11:37 +08:00
jangko 283271a6e3
Fix unhandled overflow exception in gasCall 2023-12-04 14:10:56 +07:00
Jordan Hrycaj c47f021596
Core db and aristo updates for destructor and tx logic (#1894)
* Disable `TransactionID` related functions from `state_db.nim`

why:
  Functions `getCommittedStorage()` and `updateOriginalRoot()` from
  the `state_db` module are nowhere used. The emulation of a legacy
  `TransactionID` type functionality is administratively expensive to
  provide by `Aristo` (the legacy DB version is only partially
  implemented, anyway).

  As there is no other place where `TransactionID`s are used, they will
  not be provided by the `Aristo` variant of the `CoreDb`. For the
  legacy DB API, nothing will change.

* Fix copyright headers in source code

* Get rid of compiler warning

* Update Aristo code, remove unused `merge()` variant, export `hashify()`

why:
  Adapt to upcoming `CoreDb` wrapper

* Remove synced tx feature from `Aristo`

why:
+ This feature allowed to synchronise transaction methods like begin,
  commit, and rollback for a group of descriptors.
+ The feature is over engineered and not needed for `CoreDb`, neither
  is it complete (some convergence features missing.)

* Add debugging helpers to `Kvt`

also:
  Update database iterator, add count variable yield argument similar
  to `Aristo`.

* Provide optional destructors for `CoreDb` API

why;
  For the upcoming Aristo wrapper, this allows to control when certain
  smart destruction and update can take place. The auto destructor works
  fine in general when the storage/cache strategy is known and acceptable
  when creating descriptors.

* Add update option for `CoreDb` API function `hash()`

why;
  The hash function is typically used to get the state root of the MPT.
  Due to lazy hashing, this might be not available on the `Aristo` DB.
  So the `update` function asks for re-hashing the gurrent state changes
  if needed.

* Update API tracking log mode: `info` => `debug

* Use shared `Kvt` descriptor in new Ledger API

why:
  No need to create a new descriptor all the time
2023-11-16 19:35:03 +00:00
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
andri lim 34b1e29ac9
Fix test_blockchain_json and pyspec simulator for Cancun (#1805)
* Fix test_blockchain_json and pyspec simulator for Cancun

* Preserve applyDeletes comments

* Fix redefinition error

* Move test_macro to tests folder
2023-10-05 10:04:12 +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
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 605739ef4c
Experimental MP-trie (#1573)
* Experimental MP-trie

why:
  Deleting records is a infeasible with the current structure

* Added vertex ID recycling management

Todo:
  Provide some unit tests

* DB layout update

why:
  Main news is the separation of `Merkel` hashes into an extra table.

details:
  The code fragments cover conversion between compact MPT records and
  Aristo DB records as well as some rudimentary cache handling for
  the `Merkel` hashes (i.e. the extra table entries.)

todo:
  Add some simple unit test for the descriptor record (currently used
  for vertex ID management, only.)

* Updated vertex ID recycling management

details:
  added simple unit tests (mainly testing ABI)

* docu update
2023-05-11 15:25:29 +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
jangko 34adb86167
fix macro assembler and reenable disabled tests
now macro assembler support merge fork, shanghai, etc without using ugly hack.
also each assembler test have their own `setup` section that can access
`vmState` and perform various custom setup.
2023-03-22 18:18:37 +07:00
Kim De Mey a669b51ec5
Bump Nim to 1.6 and resolve the related issues (#1445)
Two unresolved items currently:
- Three tests that are temporarily disabled as they fail in the
macro_assembler code, which seems to be due to an ambigious
identifier Stop (Ops and chronos ServerCommand enum).
- i386 CI disabled as it fails at Nim compilation already. Failed
tests where already ignored for this target.
2023-01-26 13:37:19 +01:00
Jordan Hrycaj 73b628491d
Clique snapshots reorg (#1169)
* Add persistent snapshot size logging

why:
  Suspecting too much space used

snapshot statistic:
  [..]
  blockNumber=2214912 nSnaps=2236 snapsTotal=1.14m
  blockNumber=2215936 nSnaps=2237 snapsTotal=1.14m
  [..]
  Persisting blocks fromBlock=2216449 toBlock=2216640
  36458496	datadir-nimbus-goerlish/data/nimbus/

* Replace legacy `lru_cache` by `keyed_queue`

why:
  `keyed_queue` generalises `lru_cache`

snapshot statistic:
  [..]
  blockNumber=2234368 nSnaps=2259 snapsTotal=1.15m
  blockNumber=2235392 nSnaps=2260 snapsTotal=1.15m
  [..]
  Persisting blocks fromBlock=2235649 toBlock=2235840
  37627288	datadir-nimbus-goerlish/data/nimbus/

* Increase persistent snapshot storage interval by 300%

snapshot statistic:
      [..]
      blockNumber=2232320 nSnaps=620 snapsTotal=0.30m
      blockNumber=2236416 nSnaps=621 snapsTotal=0.30m
      [..]
      Persisting blocks fromBlock=2237185 toBlock=2237376
      37627288	datadir-nimbus-goerlish/data/nimbus/

* Cull legacy debugging environment for clique

why:
  Chronicles provides a better choice (when properly set up)
2022-07-21 19:16:28 +01:00
Jordan Hrycaj 134fe26997
Store proved snap accounts (#1145)
* Relocated `IntervalSets` to nim-stew repo

* Accumulate accounts on temporary kv-DB

why:
  Explore the data as returned from snap/1. Will be converted to a
  `eth/db` next.

details:
  Verify and accumulate per/state-root accounts downloaded via snap.

also:
  Some unit tests

* Replace `Table` by `TrieDatabaseRef` for accounts accumulator

* update ticker statistics

details:
  mean/variance based counter update

* allow persistent db for proved accounts

* rebase, and globally activate unit test

* fix statistics
2022-07-01 12:42:17 +01:00
KonradStaniec fdb048ed21
Add getLogs implementation (#1143)
* Add eth_getLogs json-rpc endpoint in Fluffy and Nimbus
2022-06-29 17:44:08 +02:00
Jordan Hrycaj ee77d704bc
Non-adjacent intervals set management (#1117)
why:
  extracted from snap as separate helper utility

also:
  should go to `stew`, later on
2022-06-07 15:55:42 +01:00
Jordan Hrycaj 737236fd6e
Enable JWT authentication for websockets (#1039)
* Enable JWT authentication for websockets

details:
  Currently, this is optional and only enabled when the jwtsecret option
  is set.

  There is a default mechanism to generate a JWT secret if it is not
  explicitly stated. This mechanism is currently unused.

* Make JWT authentication compulsory for websockets

* Fix unit test entry point + cosmetics

* Update JSON-RPC link

* Improvements as suggested by Mamy
2022-04-06 15:11:13 +01:00
Jacek Sieka 1d6a9951d6
move rocksdb support to eth1 (#927)
* move rocksdb support to eth1

only used here / causes unnecessary build deps
2022-04-06 07:28:19 +02:00
jangko f782327fcf
reimplement engine API rpc kiln spec v2 2022-03-03 11:28:18 +07:00
Jordan Hrycaj 215e9856d3
Jordan/custom network (#962)
* Rearrange/rename test_kintsugu => test_custom_network

why:
  Debug, fix and test more general problems related to running
  nimbus on a custom network.

* Update UInt265/Json parser for --custom-network command line option

why:
  As found out with the Kintsugi configuration, block number and balance
  have the same Nim type which led to misunderstandings. This patch makes
  sure that UInt265 encoded string values "0x11" decodes to 17, and "b"
  and "11" to 11.

* Refactored genesis.toBlock() => genesis.toBlockHeader()

why:
  The function toBlock(g,db) may return different results depending on
  whether the db descriptor argument is nil, or initialised. This is due
  to the db.config data sub-descriptor which may give various outcomes
  for the baseFee field of the genesis header.

  Also, the version where db is non-nil initialised is used internally
  only. So the public rewrite toBlockHeader() that replaces the toBlock()
  function expects a full set of NetworkParams.

* update comments

* Rename toBlockHeader() => toGenesisHeader()

why:
  Polymorphic prototype used for BaseChainDB or NetworkParams argument.
  With a BaseChainDB descriptor argument, the name shall imply that the
  header is generated from the config fields rather than fetched from
  the database.

* Added command line option --static-peers-file

why:
  Handy feature to keep peer nodes in a file, similar to the
  --bootstrap-file option.
2022-02-11 16:28:39 +00:00
Jordan Hrycaj bced43c339
test environment for studying crash of hexary trie (#938)
* test environment for studying crash of hexary trie

why:
  the persistent test case will crash unless in genesis.toBlock():
  + pruneTrie is set false, or
  + the directive "tdb.put(emptyRlpHash.data,emptyRlp)" is added right
    before the "for k, v in account.storage:" loop

* different tests for OS variants
2022-01-26 11:56:53 +00:00
Jordan Hrycaj 103656dbb5 TxPool implementation
details:
  For documentation, see comments in the file tx_pool.nim.

  For prettified manual pages run 'make docs' in the nimbus directory and
  point your web browser to the newly created 'docs' directory.
2022-01-22 08:26:57 +02:00
Jordan Hrycaj 9545767c53 update ec_recover
why:
  Previous version was based on lru_cache which is ugly. This module is
  based on the stew/keyed_queue library module.

other:
  There are still some other modules rely on lru_cache which should be
  removed.
2022-01-22 08:26:57 +02:00
Jordan Hrycaj 1f774c01a2
Jordan/accounts cache scenario (#904)
* crash test scenario

details:
  Example code for inspecting nested block chain and accounts cache
  database transaction framework. There seems to be a pathological
  case where the system crashes after a rollback (as appeared in the
  tx-pool packer code.)

* simplified crash scenario

* Workable solution (as suggested by Andri)

details:
  Avoiding db.rollback() (db.commit() is OK) while vmState.stateDB is
  alive.

* Rename text_txcrash => test_accounts_cache

why:
  Unit tests covers part of accounts_cache handling

* comment update
2021-12-13 11:58:05 +00:00