backport: bitcoin#25933, bitcoin-core/gui#598, partial #26699 - #7602
backport: bitcoin#25933, bitcoin-core/gui#598, partial #26699#7602knst wants to merge 4 commits into
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…ype acquisition Dash BACKPORT NOTE: - upstream's `is_from_p2sh` flag feeds `GetOutputType(type, is_from_p2sh)` to tell P2SH-P2WPKH/P2SH-P2WSH apart from plain P2SH, and `CoinsResult::Add()` only exists on the `std::map<OutputType, ...>` shape introduced by bitcoin#25734. Dash has neither segwit nor that shape (see `partial bitcoin#24584`), so the flag is dropped and the existing `switch (type)` over `result.legacy` / `result.other` is kept as is. - the `if (!ExtractDestination(...)) continue;` early-out disappears, matching upstream: `Solver` already yields the script hash for `TxoutType::SCRIPTHASH` and cannot fail for it. 58b7df3 wallet: AvailableCoins, simplify output script type acquisition (furszy) Pull request description: There is an unnecessary `ExtractDestination()` call and subsequent result parse into an `CScriptID`. The `Solver()` call, which we are already doing below anyway, retrieves the script type and, in the P2SH case, the program id. ACKs for top commit: achow101: ACK 58b7df3 aureleoules: re-ACK 58b7df3 rajarshimaitra: ACK 58b7df3 w0xlt: ACK bitcoin@58b7df3 Tree-SHA512: 51080766877c34cb2232ee3a1cb6b6a62b829c9297c67b99577742b94854a737a74d248015a4603ca9b6cd0a3c9e1d6d78673ff3cc9fc65dd82deea72dc537fd Co-authored-by: Andrew Chow <github@achow101.com>
…use model cache 4584d30 GUI: remove now unneeded 'm_balances' field from overviewpage (furszy) 050e8b1 GUI: 'getAvailableBalance', use cached balance if the user did not select UTXO manually (furszy) 96e3264 GUI: use cached balance in overviewpage and sendcoinsdialog (furszy) 321335b GUI: add getter for WalletModel::m_cached_balances field (furszy) e62958d GUI: sendCoinsDialog, remove duplicate wallet().getBalances() call (furszy) Pull request description: As per the title says, we are recalculating the entire wallet balance on different situations calling to `wallet().getBalances()`, when should instead make use of the wallet model cached balance. This has the benefits of (1) not spending resources calculating a balance that we already have cached, and (2) avoid blocking the main thread for a long time, in case of big wallets, walking through the entire wallet's tx map more than what it's really needed. Changes: 1) Fix: `SendCoinsDialog` was calling `wallet().getBalances()` twice during `setModel`. 2) Use the cached balance if the user did not select any UTXO manually inside the wallet model `getAvailableBalance` call. ----------------------- As an extra note, this work born in [bitcoin#25005](bitcoin#25005) but grew out of scope of it. ACKs for top commit: jarolrod: ACK 4584d30 hebasto: re-ACK 4584d30, only suggested changes and commit message formatting since my [recent](bitcoin-core/gui#598 (review)) review. Tree-SHA512: 6633ce7f9a82a3e46e75aa7295df46c80a4cd4a9f3305427af203c9bc8670573fa8a1927f14a279260c488cc975a08d238faba2e9751588086fea1dcf8ea2b28 Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
… skips selected coins BACKPORT NOTE It includes this commit: cd98b71 gui: 'getAvailableBalance', include watch only balance (furszy) ---- Only for wallets with private keys disabled. The returned amount need to include the watch-only available balance too. Solves bitcoin#26687.
Firstly the wallet-side getAvailableBalance() reports only spend fully mixed inputs in case of UseCoinJoin(). Secondly, since the advanced CoinJoin view reads denominated_trusted and denominated_untrusted_pending from WalletModel's balance cache instead of querying the wallet on every update, those two fields have to take part in the cache invalidation check. They can move on their own: CachedTxGetAvailableCoinJoinCredits() marks a credit unconfirmed while the transaction is trusted and at depth 0, whereas GetBalance() already counts a trusted 0-conf transaction in m_mine_trusted. Confirming a self-created denominating transaction therefore only shifts an amount from denominated_untrusted_pending to denominated_trusted, leaving every field balanceChanged() compared untouched, and the progress bar kept using the stale values.
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✅ Review complete (commit fd98417) |
Walkthrough
Estimated code review effort: 3 (Moderate) | ~20 minutes Mergeability Score: 🟡 Moderate · up to The change can incorrectly report sufficient spendable balance for some watch-only wallet states, causing transaction creation to fail after the user proceeds. This correctness issue should be fixed before merging; a separate minor UI recalculation inefficiency also remains. Sequence Diagram(s)sequenceDiagram
participant Wallet
participant WalletModel
participant OverviewPage
participant SendCoinsDialog
WalletModel->>Wallet: poll wallet balances
WalletModel->>WalletModel: update cached balance
OverviewPage->>WalletModel: getCachedBalance()
WalletModel-->>OverviewPage: return cached balances
SendCoinsDialog->>WalletModel: getAvailableBalance(control)
WalletModel-->>SendCoinsDialog: return available balance
Suggested reviewers: 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Actionable comments posted: 2
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Inline comments:
In `@src/qt/sendcoinsdialog.cpp`:
- Around line 180-181: Remove the redundant display-unit change connection that
invokes coinControlUpdateLabels through the duplicate refresh path, while
preserving the single refreshBalance-driven update and initial refreshBalance
call in SendCoinsDialog.
In `@src/qt/walletmodel.cpp`:
- Around line 656-661: Update the available-balance calculation in the affected
wallet model method so watch-only funds are included only when the supplied
CCoinControl permits them, matching coin-selection eligibility when no outputs
are selected and fAllowWatchOnly is false; alternatively ensure fAllowWatchOnly
is initialized before both balance checks for private-key-disabled wallets. Add
coverage for an unselected control containing watch-only funds.
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📒 Files selected for processing (9)
src/interfaces/wallet.hsrc/qt/overviewpage.cppsrc/qt/overviewpage.hsrc/qt/sendcoinsdialog.cppsrc/qt/sendcoinsdialog.hsrc/qt/test/wallettests.cppsrc/qt/walletmodel.cppsrc/qt/walletmodel.hsrc/wallet/spend.cpp
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- src/qt/overviewpage.h
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| if (control && control->IsUsingCoinJoin()) { | ||
| return balances.anonymized_balance; |
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When CoinJoin is disabled during the initial balance poll, getBalances() leaves anonymized_balance at 0; enabling CoinJoin later only emits showCoinJoinChanged, while pollBalanceChanged() refreshes on tip/forced/round changes, so this branch keeps returning the stale 0 value. In a wallet that already has mixed funds, the mixed-funds send dialog will report 0 available or AmountExceedsBalance until another block, transaction, or rounds change forces a repoll, whereas the previous path queried wallet().getAvailableBalance() live after CoinJoin was enabled.
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| if (control && control->IsUsingCoinJoin()) { | ||
| return balances.anonymized_balance; | ||
| } | ||
| CAmount available_balance = balances.balance; |
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When no outputs are manually selected, this uses the cached trusted balance as the available balance, but GetBalance() includes wallet-locked outputs while the old getAvailableBalance() path went through AvailableCoins(), which skips IsLockedCoin(). If a user has locked coins, including dust-protection locks, Use available balance and the send preflight can offer an amount coin selection cannot spend, so max-send attempts fail later during transaction creation instead of being capped to actually spendable funds.
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Preliminary review — Codex only
The cached-balance backport introduces two in-scope GUI send regressions: CoinJoin balances are not refreshed when CoinJoin is enabled, and the regular cached balance includes wallet-locked outputs that coin selection cannot spend. The duplicate display-unit refresh predates this PR, while the watch-only report does not apply because every production caller initializes fAllowWatchOnly consistently before calling this method.
Source: Codex reviewer backend model gpt-5.6-sol; Codex final verifier backend model gpt-5.6-sol. Orchestration-only, not reviewer evidence: openclaw-agent/cliproxy/gpt-5.6-sol.
Validated blockers were found in the Codex precheck. Opus is deferred until a fresh Codex revalidation clears the blocker gate.
Review provenance
- Codex reviewers:
gpt-5.6-sol— general (completed) - Verifier:
gpt-5.6-sol— verifier - Sonnet: not run (deferred by blocker gate)
🔴 2 blocking
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In `src/qt/walletmodel.cpp`:
- [BLOCKING] src/qt/walletmodel.cpp:653-654: Refresh the balance cache when CoinJoin is enabled
When CoinJoin is disabled, `GetBalance()` skips the CoinJoin-specific calculation at `src/wallet/receive.cpp:320-328`, so the initial cache records zero anonymized and denominated balances. Enabling CoinJoin later emits `showCoinJoinChanged`, but the only wallet-view connection calls `coinJoinStatus(true)` and does not force `WalletModel` to refresh. Because `pollBalanceChanged()` returns at line 116 when neither the tip nor `fForceCheckBalanceChanged` changed, this branch continues returning zero for wallets that already contain fully mixed funds. The CoinJoin send dialog can therefore report no available balance and reject sends until another transaction, block, or rounds change triggers a poll; the converted overview also reads the same stale CoinJoin fields. Force a wallet-model balance poll when the CoinJoin enabled state changes, or keep this CoinJoin availability query live.
- [BLOCKING] src/qt/walletmodel.cpp:656-662: Do not treat wallet-locked outputs as available balance
For regular sends, `balances.balance` is populated from `GetBalance()` and `CachedTxGetAvailableCredit()`, neither of which checks `CWallet::IsLockedCoin()`. The previous live `getAvailableBalance()` path instead uses `AvailableCoins()`, which explicitly skips wallet-locked outputs at `src/wallet/spend.cpp:194-195`. This is particularly visible in Dash because `WalletModel` locks existing dust outputs during construction before the initial balance poll. Consequently, “Use available balance” and the transaction preflight can include automatically or manually locked funds, populate a maximum amount that coin selection cannot satisfy, and fail during transaction creation instead of limiting the amount to spendable funds. Preserve the cached fast path only when it is equivalent to available balance, or fall back to a lock-aware wallet query when locked outputs exist.
| if (control && control->IsUsingCoinJoin()) { | ||
| return balances.anonymized_balance; |
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🔴 Blocking: Refresh the balance cache when CoinJoin is enabled
When CoinJoin is disabled, GetBalance() skips the CoinJoin-specific calculation at src/wallet/receive.cpp:320-328, so the initial cache records zero anonymized and denominated balances. Enabling CoinJoin later emits showCoinJoinChanged, but the only wallet-view connection calls coinJoinStatus(true) and does not force WalletModel to refresh. Because pollBalanceChanged() returns at line 116 when neither the tip nor fForceCheckBalanceChanged changed, this branch continues returning zero for wallets that already contain fully mixed funds. The CoinJoin send dialog can therefore report no available balance and reject sends until another transaction, block, or rounds change triggers a poll; the converted overview also reads the same stale CoinJoin fields. Force a wallet-model balance poll when the CoinJoin enabled state changes, or keep this CoinJoin availability query live.
source: ['codex']
| CAmount available_balance = balances.balance; | ||
| // if wallet private keys are disabled, this is a watch-only wallet | ||
| // so, let's include the watch-only balance. | ||
| if (balances.have_watch_only && m_wallet->privateKeysDisabled()) { | ||
| available_balance += balances.watch_only_balance; | ||
| } | ||
| return available_balance; |
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🔴 Blocking: Do not treat wallet-locked outputs as available balance
For regular sends, balances.balance is populated from GetBalance() and CachedTxGetAvailableCredit(), neither of which checks CWallet::IsLockedCoin(). The previous live getAvailableBalance() path instead uses AvailableCoins(), which explicitly skips wallet-locked outputs at src/wallet/spend.cpp:194-195. This is particularly visible in Dash because WalletModel locks existing dust outputs during construction before the initial balance poll. Consequently, “Use available balance” and the transaction preflight can include automatically or manually locked funds, populate a maximum amount that coin selection cannot satisfy, and fail during transaction creation instead of limiting the amount to spendable funds. Preserve the cached fast path only when it is equivalent to available balance, or fall back to a lock-aware wallet query when locked outputs exist.
source: ['codex']
3 participants
Issue being fixed or feature implemented
Split from #7550
What was done?
Cached balance backports from Bitcoin Core
How Has This Been Tested?
Run unit & functional tests
Breaking Changes
N/A
Checklist: