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`.
Simplify the `reveal_to_target` algorithm by exiting prematurely if
the `target_index` is already revealed.
Since the `reveal_to_index` variable was different from
`Some(target_index)` only if the target was already revealed, we can
getrid of the variable altogether.
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>
`PersistBackend::is_empty` is removed. Instead, `load_from_persistence`
returns an option of the changeset. `None` means persistence is empty.
This is a better API than a separate method. We can now differentiate
between a persisted single changeset and nothing persisted.
`Store::aggregate_changeset` is refactored to return a `Result` instead
of a tuple. A new error type (`AggregateChangesetsError`) is introduced
to include the partially-aggregated changeset in the error. This is a
more idiomatic API.
991cb77b6fbeedbf52d1bd9aa6b3d680f8269969 fix(chain): filter coinbase tx not in best chain (Wei Chen)
Pull request description:
### Description
Fixes#1144.
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.
### 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:
* [ ] This pull request breaks the existing API
* [x] 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:
notmandatory:
ACK 991cb77b6fbeedbf52d1bd9aa6b3d680f8269969
danielabrozzoni:
ACK 991cb77b6fbeedbf52d1bd9aa6b3d680f8269969
Tree-SHA512: 9e06d8404708eee050c96807a876a470303f4983666c82c56c17d97c2d4b72784e75271279fd393c53a6a967a352aea1ef2762da71ac4bb58f7a0c2f05354948
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.
Instead of inserting anchors and seen_at timestamp in the same method,
we have three separate methods. This makes the API easier to understand
and makes `IndexedTxGraph` more consistent with the `TxGraph` API.
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.
* `CheckPoint::from_header` allows us to construct a checkpoint from
block header.
* `CheckPoint::into_update` transforms the cp into a
`local_chain::Update`.
e89cf5a16a239d51ae9eb1857b55e7178e588b74 refactor: use set_lookahead in set_lookahead_for_all (Vladimir Fomene)
Pull request description:
### Description
Use set_lookahead in set_lookahead_for_all.
### 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:
realeinherjar:
ACK: e89cf5a16a239d51ae9eb1857b55e7178e588b74
evanlinjin:
ACK e89cf5a16a239d51ae9eb1857b55e7178e588b74
Tree-SHA512: 02d226be7adcfd5e23ecb9d17539b0e089cb55ddf9c6de980155960f8181f2d3ea3ac9a93b2c1b7e0a8d4e4c821d92f65405852c696c9a367193a42d60c1aac6
...try_get_chain_pos
In try_get_chain_pos, when we notice that a transaction is not included
in the best chain, we check the transactions in mempool to find
conflicting ones, and decide based on that if our transaction is still
in mempool or has been dropped.
This commit adds a check for transactions conflicting with the
unconfirmed ancestors of our tx.
Co-authored-by: Wei Chen <wzc110@gmail.com>
