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nimbus-eth1/nimbus/db/core_db.nim

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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
# Nimbus
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
# Copyright (c) 2023 Status Research & Development GmbH
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
# 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.
## Core database replacement wrapper object
## ========================================
##
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
## See `core_db/README.md` for implementation details
##
## This module provides a memory datanase only. For providing a persistent
Aristo db refactor tx paradim (#1674) * Better error handling why: Bail out on some error as early as possible before any changes. * Implement `fetch()` as opposite of `merge()` rationale: In the `Aristo` realm, the action named `fetch()` and `merge()` indicate leaf value related actions on the MPT, while actions `get()` and `put()` handle vertex or hash key related operations that constitute the MPT. * Re-factor `merge()` prototypes why: The most used variant of `merge()` should have the simplest prototype. * Persistent DB constructor needs to import `aristo/aristo_init/persistent` why: Most applications use memory DB anyway. This avoids linking `-lrocksdb` or any other back end libraries by default. * Re-factor transaction module why: Got the paradigm wrong. The transaction descriptor did replace the database one but should be handled separately.
2023-08-07 18:45:23 +01:00
## constructor, import `db/code_db/persistent` though avoiding to
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
## unnecessarily link to the persistent backend library (e.g. `rocksdb`)
## when a memory only database is used.
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
##
{.push raises: [].}
import
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
./core_db/memory_only
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
export
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
memory_only
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
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