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Minor bugfixes and test improvements to #4109 - #4182
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TheBlueMatt merged 6 commits intoOct 29, 2025
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In 6c5ef04 we prevented broadcast of the commitment transactions if the funding transaction has not yet appeared on-chain for manual-broadcast channels to avoid spurious bumps or unbroadcastable transactions. It also updated the documentation on `ChanelMonitor::broadcast_latest_holder_commitment_txn` to explicitly state that it will override the manual-broadcast state and broadcast the latest commitment anyway. However, 4131680 accidentally reverted this behavior by updating `generate_claimable_outpoints_and_watch_outputs`, which is caled by `broadcast_latest_holder_commitment_txn` to also refuse to broadcast if funding has not been seen on chain. Here we fix this, passing through the `require_funding_seen` bool to allow `broadcast_latest_holder_commitment_txn` to broadcast immediately.
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Additional details and impacted files@@ Coverage Diff @@## main #4182 +/- ##
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- Coverage 88.83% 88.83% -0.01%
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Files 180 180 Lines 137504 137503 -1 Branches 137504 137503 -1 ==========================================
- Hits 122155 122150 -5 - Misses 12538 12542 +4
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ldk-reviews-bot
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Oct 28, 2025
👋 The first review has been submitted! Do you think this PR is ready for a second reviewer? If so, click here to assign a second reviewer. |
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✅ Added second reviewer: @jkczyz |
wpaulino
commented
Oct 28, 2025
Contributor
Feel free to squash |
In 6c5ef04 we prevented broadcast of the commitment transactions if the funding transaction has not yet appeared on-chain for manual-broadcast channels to avoid spurious bumps or unbroadcastable transactions. However, we missed the case where a channel is closed due to HTLCs timing out. Here we fix that by doing the same broadcast-gating when automatically force-closing a channel due to HTLC timeouts.
This rewrites `test_manual_broadcast_skips_commitment_until_funding` to test manual-broadcast channel closing for both forced-broadcast and close-due-to-HTLC-expiry closes as well as 0-conf and non-0-conf channels.
The remaining two manual-broadcast tests were made redundant by the previous commit which expanded the coverage of the first test. Thus we remove the two other tests.
In `generate_claimable_outpoints_and_watch_outputs` if we're going to decide to return nothing and defer broadcasting the commitment transaction, there's no need to prepare the broadcast tracking objects, so skip it.
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jkczyz
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TheBlueMatt
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Oct 29, 2025
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Backported to 0.2 in #4185. |
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