Commit Graph

80 Commits

Author SHA1 Message Date
志宇
eded1a7ea0 feat(chain): introduce CheckPoint::insert
Co-authored-by: LLFourn <lloyd.fourn@gmail.com>
2024-04-16 19:28:41 +08:00
志宇
886d72e3d5 chore(chain)!: rm missing_heights and missing_heights_from methods
These methods are no longer needed as we can determine missing heights
directly from the `CheckPoint` tip.
2024-04-16 18:01:50 +08:00
Steve Myers
358e842dcd Merge bitcoindevkit/bdk#1177: Upgrade bitcoin/miniscript dependencies
984c758f96 Upgrade miniscript/bitcoin dependency (Tobin C. Harding)

Pull request description:

  Upgrade:

  - bitcoin to v0.31.0
  - miniscript to v11.0.0

  Fix: #1196

ACKs for top commit:
  ValuedMammal:
    ACK 984c758f96
  notmandatory:
    ACK 984c758f96
  oleonardolima:
    ACK 984c758f96
  storopoli:
    ACK 984c758f96

Tree-SHA512: d64d530e93cc36688ba07d3677d5c1689b61f246f05d08092bbf86ddbba8a5ec49648e6825b950ef17729dc064da50d50b793475a288862a0461976876807170
2024-04-12 10:58:19 -05:00
志宇
446b045161 test(chain): introduce proptest for CheckPoint::range
Ensure that `CheckPoint::range` returns expected values by comparing
against values returned from a primitive approach.

I think it is a good idea to start writing proptests for this crate.
2024-04-11 21:43:21 +08:00
志宇
62619d3a4a Merge bitcoindevkit/bdk#1385: Fix last seen unconfirmed
a2a64ffb6e fix(electrum)!: Remove `seen_at` param from `into_tx_graph` (valued mammal)
37fca35dde feat(tx_graph): Add method update_last_seen_unconfirmed (valued mammal)

Pull request description:

  A method `update_last_seen_unconfirmed` is added for `TxGraph` that allows inserting a `seen_at` time for all unanchored transactions.

  fixes #1336

  ### Changelog notice

  Changed:
  - Methods `into_tx_graph` and `into_confirmation_time_tx_graph`for `RelevantTxids` are changed to no longer accept a `seen_at` parameter.

  Added:
  - Added method `update_last_seen_unconfirmed` for `TxGraph`.

  ### Checklists

  #### All Submissions:

  * [x] I've signed all my commits
  * [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
  * [x] I ran `cargo fmt` and `cargo clippy` before committing

ACKs for top commit:
  evanlinjin:
    ACK a2a64ffb6e

Tree-SHA512: 9011e63314b0e3ffcd50dbf5024f82b365bab1cc834c0455d7410b682338339ed5284caa721ffc267c65fa26d35ff6ee86cde6052e82a6a79768547fbb7a45eb
2024-04-11 21:33:14 +08:00
Tobin C. Harding
984c758f96 Upgrade miniscript/bitcoin dependency
Upgrade:

- bitcoin to v0.31.0
- miniscript to v11.0.0

Note: The bitcoin upgrade includes improvements to the
`Transaction::weight()` function, it appears those guys did good, we
no longer need to add the 2 additional weight units "just in case".
2024-04-08 15:16:02 +10:00
valued mammal
37fca35dde feat(tx_graph): Add method update_last_seen_unconfirmed
That accepts a `u64` as param representing the latest timestamp
and internally calls `insert_seen_at` for all transactions in
graph that aren't yet anchored in a confirmed block.
2024-04-06 11:50:37 -04:00
志宇
9a62d56900 feat(chain): add get and range methods to CheckPoint
These methods allow us to query for checkpoints contained within the
linked list by height and height range. This is useful to determine
checkpoints to fetch for chain sources without having to refer back to
the `LocalChain`.

Currently this is not implemented efficiently, but in the future, we
will change `CheckPoint` to use a skip list structure.
2024-04-05 16:36:00 +08:00
志宇
8ab58af093 feat(chain)!: wrap TxGraph txs with Arc
Wrapping transactions as `Arc<Transaction>` allows us to share
transactions cheaply between the chain-source and receiving structures.
Therefore the chain-source can keep already-fetched transactions (save
bandwidth) and have a shared pointer to the transactions (save memory).

This is better than the current way we do things, which is to refer back
to the receiving structures mid-sync.

Documentation for `TxGraph` is also updated.
2024-03-25 12:57:26 +08:00
Steve Myers
c3544c9b8c Merge bitcoindevkit/bdk#1349: Fix KeychainTxOutIndex::lookahead_to_target
b290b29502 test(chain): change test case comments to docstring (志宇)
c151d8fd23 fix(chain): `KeychainTxOutIndex::lookahead_to_target` (志宇)

Pull request description:

  ### Description

  This method was not used (so it was untested) and it was not working. This fixes it.

  The old implementation used `.next_store_index` which returned the keychain's last index stored in `.inner` (which include lookahead spks). This is WRONG because `.replenish_lookahead` needs the difference from last revealed.

  ### Changelog notice

  Fix `KeychainTxOutIndex::lookahead_to_target`

  ### Checklists

  #### All Submissions:

  * [x] I've signed all my commits
  * [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
  * [x] I ran `cargo fmt` and `cargo clippy` before committing

  #### Bugfixes:

  * [x] I've added tests to reproduce the issue which are now passing

ACKs for top commit:
  notmandatory:
    ACK b290b29502

Tree-SHA512: af50c6af18b6b57494cfa37f89b0236674fa331091d791e858f67b7d0b3a1e4e11e7422029bd6a2dc1c795914cdf6d592a14b42a62ca7c7c475ba6ed37182539
2024-03-02 10:43:05 -06:00
志宇
b290b29502 test(chain): change test case comments to docstring 2024-02-28 05:47:25 -03:00
志宇
c151d8fd23 fix(chain): KeychainTxOutIndex::lookahead_to_target 2024-02-17 23:36:02 +08:00
志宇
2c324d3759 Merge bitcoindevkit/bdk#1325: Add map_anchors for TxGraph
5489f905a4 feat(chain): add `map_anchors` for `TxGraph` and `ChangeSet` (Antonio Yang)
022d5a21cf test(chain) use `Anchor` generic on `init_graph` (Antonio Yang)

Pull request description:

  ### Description
  Fix #1295

  ### Checklists
  #### All Submissions:
  * [X] I've signed all my commits
  * [X] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
  * [X] I ran `cargo fmt` and `cargo clippy` before committing

  #### New Features:

  * [ ] I've added tests for the new feature
  * [ ] I've added docs for the new feature

  #### Bugfixes:

  * [ ] This pull request breaks the existing API
  * [ ] I've added tests to reproduce the issue which are now passing
  * [ ] I'm linking the issue being fixed by this PR

ACKs for top commit:
  evanlinjin:
    ACK 5489f905a4
  LLFourn:
    ACK 5489f905a4

Tree-SHA512: c8327f2e7035a46208eb32c6da1f9f0bc3e8625168450c5b0b39f695268e42b0b9053b6eb97805b116328195d77af7ca9edb1f12206c50513fbe295dded542e7
2024-02-17 02:30:06 +08:00
Antonio Yang
5489f905a4 feat(chain): add map_anchors for TxGraph and ChangeSet 2024-02-13 21:29:12 +08:00
LLFourn
ae00e1ee7b fix(chain): tx_graph::ChangeSet::is_empty 2024-02-09 20:03:57 +11:00
Antonio Yang
022d5a21cf test(chain) use Anchor generic on init_graph 2024-02-08 15:45:42 +08:00
志宇
25653d71b8 Merge bitcoindevkit/bdk#1172: Introduce block-by-block API to bdk::Wallet and add RPC wallet example
a4f28c079e chore: improve LocalChain::apply_header_connected_to doc (LLFourn)
8ec65f0b8e feat(example): add RPC wallet example (Vladimir Fomene)
a7d01dc39a feat(chain)!: make `IndexedTxGraph::apply_block_relevant` more efficient (志宇)
e0512acf94 feat(bitcoind_rpc)!: emissions include checkpoint and connected_to data (志宇)
8f2d4d9d40 test(chain): `LocalChain` test for update that is shorter than original (志宇)
9467cad55d feat(wallet): introduce block-by-block api (Vladimir Fomene)
d3e5095df1 feat(chain): add `apply_header..` methods to `LocalChain` (志宇)
2b61a122ff feat(chain): add `CheckPoint::from_block_ids` convenience method (志宇)

Pull request description:

  ### Description

  Introduce block-by-block API for `bdk::Wallet`. A `wallet_rpc` example is added to demonstrate syncing `bdk::Wallet` with the `bdk_bitcoind_rpc` chain-source crate.

  The API of `bdk_bitcoind_rpc::Emitter` is changed so the receiver knows how to connect to the block emitted.

  ### Notes to the reviewers

  ### Changelog notice

  Added
  * `Wallet` methods to apply full blocks (`apply_block` and `apply_block_connected_to`) and a method to apply a batch of unconfirmed transactions (`apply_unconfirmed_txs`).
  * `CheckPoint::from_block_ids` convenience method.
  * `LocalChain` methods to apply a block header (`apply_header` and `apply_header_connected_to`).
  * Test to show that `LocalChain` can apply updates that are shorter than original. This will happen during reorgs if we sync wallet with `bdk_bitcoind_rpc::Emitter`.

  Fixed
  * `InsertTxError` now implements `std::error::Error`.

  #### All Submissions:

  * [x] I've signed all my commits
  * [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
  * [x] I ran `cargo fmt` and `cargo clippy` before committing

  #### New Features:

  * [x] I've added tests for the new feature
  * [x] I've added docs for the new feature

ACKs for top commit:
  LLFourn:
    self-ACK: a4f28c079e
  evanlinjin:
    ACK a4f28c079e

Tree-SHA512: e39fb65b4e69c0a6748d64eab12913dc9cfe5eb8355ab8fb68f60a37c3bb2e1489ddd8f2f138c6470135344f40e3dc671928f65d303fd41fb63f577b30895b60
2024-01-19 23:07:35 +08:00
Daniela Brozzoni
60abd87a32 Merge bitcoindevkit/bdk#1269: Revamp KeychainTxOutIndex API to be safer
71fff1613d feat(chain): add txout methods to `KeychainTxOutIndex` (志宇)
83e7b7ec40 docs(chain): improve `KeychainTxOutIndex` docs (志宇)
9294e30943 docs(wallet): improve docs for unbounded spk iterator methods (志宇)
b74c2e2622 fix(wallet): use efficient peek address logic (志宇)
81aeaba48a feat(chain): add `SpkIterator::descriptor` method (志宇)
c7b47af72f refactor(chain)!: revamp `KeychainTxOutIndex` API (志宇)
705690ee8f feat(chain): make output of `SpkTxOutIndex::unused_spks` cloneable (志宇)

Pull request description:

  Closes #1268

  ### Description

  Previously `SpkTxOutIndex` methods can be called from `KeychainTxOutIndex` due to the `DeRef` implementation. However, the internal `SpkTxOut` will also contain lookahead spks resulting in an error-prone API.

  `SpkTxOutIndex` methods are now not directly callable from `KeychainTxOutIndex`. Methods of `KeychainTxOutIndex` are renamed for clarity. I.e. methods that return an unbounded spk iter are prefixed with `unbounded`.

  In addition to this, I also optimized the peek-address logic of `bdk::Wallet` using the optimized `<SpkIterator as Iterator>::nth` implementation.

  ### Notes to the reviewers

  This is mostly refactoring, but can also be considered a bug-fix (as the API before was very problematic).

  ### Changelog notice

  Changed
  * Wallet's peek-address logic is optimized by making use of `<SpkIterator as Iterator>::nth`.
  * `KeychainTxOutIndex` API is refactored to better differentiate between methods that return unbounded vs stored spks.
  * `KeychainTxOutIndex` no longer directly exposes `SpkTxOutIndex` methods via `DeRef`. This was problematic because `SpkTxOutIndex` also contains lookahead spks which we want to hide.

  Added
  * `SpkIterator::descriptor` method which gets a reference to the internal descriptor.

  ### Checklists

  #### All Submissions:

  * [x] I've signed all my commits
  * [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
  * [x] I ran `cargo fmt` and `cargo clippy` before committing

  #### New Features:

  ~* [ ] I've added tests for the new feature~
  * [x] I've added docs for the new feature

  #### Bugfixes:

  * [x] This pull request breaks the existing API
  * [ ] I've added tests to reproduce the issue which are now passing
  * [x] I'm linking the issue being fixed by this PR

ACKs for top commit:
  danielabrozzoni:
    ACK 71fff1613d

Tree-SHA512: f29c7d2311d0e81c4fe29b8f57c219c24db958194fad5de82bb6d42d562d37fd5d152be7ee03a3f00843be5760569ad29b848250267a548d7d15320fd5292a8f
2024-01-18 11:36:31 +01:00
志宇
c7b47af72f refactor(chain)!: revamp KeychainTxOutIndex API
Previously `SpkTxOutIndex` methods can be called from
`KeychainTxOutIndex` due to the `DeRef` implementation. However, the
internal `SpkTxOut` will also contain lookahead spks resulting in an
error-prone API.

`SpkTxOutIndex` methods are now not directly callable from
`KeychainTxOutIndex`. Methods of `KeychainTxOutIndex` are renamed for
clarity. I.e. methods that return an unbounded spk iter are prefixed
with `unbounded`.
2024-01-17 11:17:25 +08:00
志宇
8f2d4d9d40 test(chain): LocalChain test for update that is shorter than original 2024-01-16 00:27:02 +08:00
志宇
d3e5095df1 feat(chain): add apply_header.. methods to LocalChain
These are convenience methods to transform a header into checkpoints to
update the `LocalChain` with. Tests are included.
2024-01-16 00:27:00 +08:00
志宇
2b61a122ff feat(chain): add CheckPoint::from_block_ids convenience method 2024-01-16 00:23:42 +08:00
志宇
bf67519768 feat(chain): add LocalChain::disconnect_from method 2024-01-15 17:48:36 +08:00
志宇
1def76f1f1 chore: make clippy happy and bump clippy msrv 2023-12-29 19:57:48 +08:00
Antoine Poinsot
4fd539b647 feat(chain)!: KeychainTxOutIndex uses a universal lookahead
The wallet is currently created without setting any lookahead value for
the keychain. This implicitly makes it a lookahead of 0. As this is a
high-level interface we should avoid footguns and aim for a reasonable
default.

Instead of simply patching it for wallet, we alter `KeychainTxOutIndex`
to have a default lookahead value. Additionally, instead of a
per-keychain lookahead, the constructor asks for a `lookahead` value.
This avoids the footguns of having methods which allows the caller the
decrease the `lookahead` (and therefore panicing). This also simplifies
the API.

Co-authored-by: Antoine Poisot <darosior@protonmail.com>
Co-authored-by: 志宇 <hello@evanlinjin.me>
2023-12-28 12:51:11 +08:00
Daniela Brozzoni
0adff9c35f doc: Improve TxGraph & co docs 2023-12-13 10:12:12 +01:00
Einherjar
27a63abd1e chore: typos fixed 2023-11-16 07:25:20 -06:00
志宇
9a250baf62 chore: make clippy happy 2023-11-16 07:17:16 +08:00
志宇
5998a22819 feat!: LocalChain with hardwired genesis checkpoint
This ensures that `LocalChain` will always have a tip. The `ChainOracle`
trait's `get_chain_tip` method no longer needs to return an option.
2023-11-16 06:41:18 +08:00
Wei Chen
991cb77b6f fix(chain): filter coinbase tx not in best chain
Coinbase transactions cannot exist in the mempool and be unconfirmed.
`TxGraph::try_get_chain_position` should always return `None` for coinbase
transactions not anchored in best chain.
2023-11-11 02:55:58 +08:00
Wei Chen
afbf83c8b0 chain(fix): conflict resolution for txs with same last_seen
The tx conflict `Scenario` test for unconfirmed txs with the same
last_seen has been amended for its corresponding conflict
resolution bug fix.
2023-11-09 05:46:09 +08:00
志宇
4f5695d43a chain: improvements to IndexedTxGraph and TxGraph APIs
For `IndexedTxGraph`:
- Remove `InsertTxItem` type (this is too complex).
    - `batch_insert_relevant` now uses a simple tuple `(&tx, anchors)`.
    - `batch_insert` is now also removed, as the same functionality can be
      done elsewhere.
- Add internal helper method `index_tx_graph_changeset` so we don't need
  to create a seprate `TxGraph` update in each method.
- `batch_insert_<relevant>_unconfirmed` no longer takes in an option of
  last_seen.
- `batch_insert_unconfirmed` no longer takes a reference of a
  transaction (since we apply all transactions anyway, so there is no
  need to clone).

For `TxGraph`:
- Add `batch_insert_unconfirmed` method.
2023-10-09 22:14:04 +08:00
志宇
240657b167 chain: add batch-insert methods for IndexedTxGraph 2023-10-09 22:14:03 +08:00
Daniela Brozzoni
6d601a7e88 test(chain): Add test for conflicting transactions
Co-authored-by: Wei Chen <wzc110@gmail.com>
2023-10-04 14:00:49 +02:00
Daniela Brozzoni
48ca95b541 test(chain): Add test for walk_ancestors
Co-authored-by: Wei Chen <wzc110@gmail.com>
2023-10-04 14:00:47 +02:00
Daniela Brozzoni
59a2403e28 test(chain): Introduce TxTemplate
Co-authored-by: Wei Chen <wzc110@gmail.com>
2023-10-04 14:00:46 +02:00
Daniela Brozzoni
6e511473a5 test(chain): add block_id! utility macro
Co-authored-by: Wei Chen <wzc110@gmail.com>
2023-10-04 14:00:45 +02:00
Daniela Brozzoni
2f26eca607 fix(chain): TxDescendants performs a BFS
This commit also changes test_descendants_no_repeat to check
the order of the transactions returned
2023-10-03 15:11:04 +02:00
Vladimir Fomene
c56728ff13 refactor: Remove scan and scan_txout from SpkTxoutIndex and KeychainTxoutIndex 2023-09-03 01:51:21 +08:00
Daniela Brozzoni
cc1a43c495 fix: SpkIterator::new_with_range takes wildcards..
..into account

When you pass a non-wildcard descriptor in `new_with_range`, we make
sure that the range length is at most 1; if that's not the case, we
shorten it.
We would previously use `new_with_range` without this check and with a
non-wildcard descriptor in `spks_of_all_keychains`, this meant creating
a spkiterator that would go on producing the same spks over and over
again, causing some issues with syncing on electrum/esplora.

To reproduce the bug, run in `example-crates/example_electrum`:
```
cargo run "sh(wsh(or_d(c:pk_k(cPGudvRLDSgeV4hH9NUofLvYxYBSRjju3cpiXmBg9K8G9k1ikCMp),c:pk_k(cSBSBHRrzqSXFmrBhLkZMzQB9q4P9MnAq92v8d9a5UveBc9sLX32))))#zp9pcfs9" scan
```
2023-08-31 16:48:20 +02:00
Steve Myers
d443fe7f66 feat(tx_graph)!: change TxGraph::calculate_fee to return Result<u64,CalculateFeeError>
added
- tx_graph::CalculateFeeError enum

BREAKING CHANGES:

changed
- TxGraph::calculate_fee function to return Result<u64,CalculateFeeError> instead of Option<i64>
2023-08-30 11:55:17 -05:00
Daniela Brozzoni
80f5ecf3be feat(chain): Add initial_changeset to graphs
Add `initial_changeset` to TxGraph and IndexedTxGraph
2023-08-18 11:52:31 +02:00
Daniela Brozzoni
ea50b6a932 refactor!(chain): Unify ChangeSet nomenclature
This commit renames:

- indexed_tx_graph::IndexedAdditions -> indexed_tx_graph::ChangeSet
- indexed_tx_graph::IndexedAdditions::graph_additions -> indexed_tx_graph::ChangeSet::graph
- indexed_tx_graph::IndexedAdditions::index_additions -> indexed_tx_graph::ChangeSet::indexer
- tx_graph::Additions -> tx_graph::ChangeSet
- keychain::DerivationAdditions -> keychain::ChangeSet
- CanonicalTx::node -> CanonicalTx::tx_node
- CanonicalTx::observed_as -> CanonicalTx::chain_position
- LocalChangeSet -> WalletChangeSet
- LocalChangeSet::chain_changeset -> WalletChangeSet::chain
- LocalChangeSet::indexed_additions -> WalletChangeSet::indexed_tx_graph
- LocalUpdate -> WalletUpdate

This commit also changes the visibility of TxGraph::determine_changeset
to be pub(crate), and the method accepts a TxGraph instead of &TxGraph

This commit removes:
- `TxGraph::insert_txout_preview`
- `TxGraph::insert_tx_preview`
- `insert_anchor_preview`
- `insert_seen_at_preview`

Solves #1022
2023-08-18 11:51:45 +02:00
Daniela Brozzoni
853d361751 Update bdk_chain to bitcoin 0.30.0 2023-08-03 10:58:59 +02:00
志宇
d73669e8fa Merge bitcoindevkit/bdk#1034: Implement linked-list LocalChain and update chain-src crates/examples
b206a985cf fix: Even more refactoring to code and documentation (志宇)
bea8e5aff4 fix: `TxGraph::missing_blocks` logic (志宇)
db15e03bdc fix: improve more docs and more refactoring (志宇)
95312d4d05 fix: docs and some minor refactoring (志宇)
8bf7a997f7 Refactor `debug_assertions` checks for `LocalChain` (志宇)
315e7e0b4b fix: rm duplicate `bdk_tmp_plan` module (志宇)
af705da1a8 Add exclusion of example cli `*.db` files in `.gitignore` (志宇)
eabeb6ccb1 Implement linked-list `LocalChain` and update chain-src crates/examples (志宇)

Pull request description:

  Fixes #997
  Replaces #1002

  ### Description

  This PR changes the `LocalChain` implementation to have blocks stored as a linked-list. This allows the data-src thread to hold a shared ref to a single checkpoint and have access to the whole history of checkpoints without cloning or keeping a lock on `LocalChain`.

  The APIs of `bdk::Wallet`, `esplora` and `electrum` are also updated to reflect these changes. Note that the `esplora` crate is rewritten to anchor txs in the confirmation block (using the esplora API's tx status block_hash). This guarantees 100% consistency between anchor blocks and their transactions (instead of anchoring txs to the latest tip). `ExploraExt` now has separate methods for updating the `TxGraph` and `LocalChain`.

  A new method `TxGraph::missing_blocks` is introduced for finding "floating anchors" of a `TxGraph` update (given a chain).

  Additional changes:

  * `test_local_chain.rs` is refactored to make test cases easier to write. Additional tests are also added.
  * Examples are updated.
  * Exclude example-cli `*.db` files in `.gitignore`.
  * Rm duplicate `bdk_tmp_plan` module.

  ### Notes to the reviewers

  This is the smallest possible division of #1002 without resulting in PRs that do not compile. Since we have changed the API of `LocalChain`, we also need to change `esplora`, `electrum` crates and examples alongside `bdk::Wallet`.

  ### Changelog notice

  * Implement linked-list `LocalChain`. This allows the data-src thread to hold a shared ref to a single checkpoint and have access to the whole history of checkpoints without cloning or keeping a lock on `LocalChain`.
  * Rewrote `esplora` chain-src crate to anchor txs to their confirmation blocks (using esplora API's tx-status `block_hash`).

  ### Checklists

  #### All Submissions:

  * [x] I've signed all my commits
  * [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
  * [x] I ran `cargo fmt` and `cargo clippy` before committing

  #### New Features:

  * [x] I've added tests for the new feature
  * [x] I've added docs for the new feature

ACKs for top commit:
  LLFourn:
    ACK b206a985cf

Tree-SHA512: a513eecb4f1aae6a5c06a69854e4492961424312a75a42d74377d363b364e3d52415bc81b4aa3fbc3f369ded19bddd07ab895130ebba288e8a43e9d6186e9fcc
2023-08-03 16:05:20 +08:00
志宇
b206a985cf fix: Even more refactoring to code and documentation
Thank you to @LLFourn and @danielabrozzoni for these suggestions.
2023-08-01 18:31:22 +08:00
志宇
bea8e5aff4 fix: TxGraph::missing_blocks logic
Added additional tests for unnecessary duplicate heights
2023-07-28 11:37:17 +08:00
志宇
db15e03bdc fix: improve more docs and more refactoring
Thank you @vladimirfomene for these suggestions.

* Rename `LocalUpdate::keychain` to `LocalUpdate::last_active_indices`.
* Change docs for `CheckPoint` to be more descriptive.
* Fix incorrect logic in `update_local_chain` for `EsploraExt` and
  `EsploraAsyncExt`.
2023-07-28 11:37:17 +08:00
志宇
95312d4d05 fix: docs and some minor refactoring
Shout out to @LLFourn for these suggestions.

* Improve/fix `LocalChain` documentation
* Refactor `TxGraph::missing_blocks` to make it more explicit that
  `last_block` has state.
* `update_local_chain` method of `EsploraExt` and `EsploraAsyncExt` now
  returns a `local_chain::Update` instead of just a `CheckPoint`.
2023-07-28 11:30:17 +08:00
志宇
eabeb6ccb1 Implement linked-list LocalChain and update chain-src crates/examples
This commit changes the `LocalChain` implementation to have blocks
stored as a linked-list. This allows the data-src thread to hold a
shared ref to a single checkpoint and have access to the whole history
of checkpoints without cloning or keeping a lock on `LocalChain`.

The APIs of `bdk::Wallet`, `esplora` and `electrum` are also updated to
reflect these changes. Note that the `esplora` crate is rewritten to
anchor txs in the confirmation block (using the esplora API's tx status
block_hash). This guarantees 100% consistency between anchor blocks and
their transactions (instead of anchoring txs to the latest tip).
`ExploraExt` now has separate methods for updating the `TxGraph` and
`LocalChain`.

A new method `TxGraph::missing_blocks` is introduced for finding
"floating anchors" of a `TxGraph` update (given a chain).

Additional changes:

* `test_local_chain.rs` is refactored to make test cases easier to
  write. Additional tests are also added.
* Examples are updated.
* Fix `tempfile` dev dependency of `bdk_file_store` to work with MSRV

Co-authored-by: LLFourn <lloyd.fourn@gmail.com>
2023-07-28 11:30:16 +08:00