staticaddr: surface mempool deposits immediately#1104
staticaddr: surface mempool deposits immediately#1104hieblmi wants to merge 11 commits intolightninglabs:masterfrom
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Summary of ChangesHello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request significantly improves the user experience for static-address deposits by making them available for certain operations, specifically loop-ins, as soon as they are detected in the mempool. This change reduces the waiting time for users by removing the previous requirement for a minimum number of confirmations before a deposit could be utilized. The underlying logic has been updated to correctly track and manage the state and expiry of these newly visible unconfirmed deposits, while ensuring that more sensitive operations like withdrawals and channel opens still adhere to confirmation requirements. Highlights
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Code Review
This pull request refactors the static address deposit management by decoupling the 'Deposited' state from a minimum confirmation count. Deposits are now considered 'Deposited' as soon as they are detected, even if unconfirmed, and their actual confirmation height is tracked. This change impacts how unspent deposits are listed, how expiry is calculated (introducing depositBlocksUntilExpiry and confirmationHeightForUtxo helpers), and how IsExpired and IsSwappable functions behave for unconfirmed deposits. While unconfirmed deposits are now available for loop-ins, explicit checks have been added to openchannel and withdraw managers to ensure only confirmed deposits are used for these operations. The deposit.Manager now updates currentHeight and reconciles deposits on every new block, making the system more responsive. A review comment suggests that the pollDeposits function might be redundant given that reconcileDeposits is now called on every new block, proposing its removal for efficiency and logic simplification.
| case height := <-newBlockChan: | ||
| m.currentHeight.Store(uint32(height)) | ||
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| err := m.reconcileDeposits(ctx) |
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Now that reconcileDeposits is called on every new block, the periodic polling started by pollDeposits seems redundant. Reconciling on new blocks is more efficient and responsive than polling on a fixed interval.
Consider removing the pollDeposits function and its call on line 127 to avoid unnecessary work and simplify the logic.
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Surface static-address deposits as soon as they appear in the wallet, without waiting for six confirmations. Reconcile the wallet view on startup, on each block, and on the polling ticker so mempool deposits are created immediately. Backfill the first confirmation height once those deposits confirm, guard unconfirmed deposits against expiry, and mark vanished unconfirmed outpoints as Replaced so RBFed-away deposits stop showing up in RPCs. Expose those deposits through static-address RPCs by deriving availability and summary totals from stored deposit state, reporting sensible expiry data for unconfirmed outputs, and hiding Replaced records from normal deposit listings and totals.
Allow static loop-ins to select unconfirmed deposits because their CSV timeout has not started yet, while still preferring confirmed outputs during automatic selection. Require confirmed inputs for channel opens and withdrawals now that Deposited includes mempool outputs. Filter unconfirmed deposits out of automatic selection and fail manual requests that reference them so we do not build PSBTs or withdrawal attempts with unusable inputs. Reject withdraw-all requests when any deposited output is still unconfirmed instead of silently dropping those outputs from the request.
Remove the old "no confirmed deposits available" error now that mempool deposits are listed immediately. Reproduce the server static-address deposit selection order in the CLI using the already-returned deposit metadata. This keeps the low-confirmation warning focused on the deposits that auto-selection would actually choose, so users only see it when the swap payment may wait for the server confirmation-risk policy.
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Keep MinConfs as the legacy minimum confirmation target that deposits had to reach before they were considered ready for swaps. Deposit readiness is now applied by flow: loop-ins may use unconfirmed deposits, while withdrawals and channel opens still require confirmed inputs.
If InitHtlcAction creates the private swap invoice but fails before the loop-in is stored, the retry path otherwise leaves behind a live orphan invoice. Cancel that invoice on the early error path with a detached, timeout-limited context, and reuse the same helper when tearing down the monitor path.
…lation FinalizeDepositAction only needs to tell the manager to remove the FSM from its active set, but the old synchronous send was still tied to the caller context and could race with request cancellation or a busy manager loop. Send the cleanup notification asynchronously and tie it to the FSM lifetime instead, so withdrawal completion does not block while deposit locks are held.
Keep replacement UTXOs as fresh deposits while preserving the original deposit record and selected outpoint snapshot for pending swaps. Before signing a static loop-in HTLC, check each original selected outpoint with GetTxOut(..., includeMempool=true). Cancel the pending invoice only when that check reports any original outpoint unavailable; lookup errors fail the action without canceling. Keep recovered loop-ins using their stored outpoint snapshot and cover replacement discovery and cancellation in tests.
ListUnspentDeposits now reports only wallet UTXOs that have an active Deposited record, matching the static loop-in admission path and avoiding wallet-seen outputs that are not ready for loop-in selection. Notification dispatch now drops messages for slow subscribers instead of blocking the manager while holding its subscriber lock.
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4 participants
This PR does the following:
settles.