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-rw-r--r--src/interfaces/chain.h11
1 files changed, 6 insertions, 5 deletions
diff --git a/src/interfaces/chain.h b/src/interfaces/chain.h
index a9b05f27fc..ae546c4150 100644
--- a/src/interfaces/chain.h
+++ b/src/interfaces/chain.h
@@ -120,8 +120,9 @@ public:
//! nullopt if no block in the range is pruned. Range is inclusive.
virtual Optional<int> findPruned(int start_height = 0, Optional<int> stop_height = nullopt) = 0;
- //! Return height of the highest block on the chain that is an ancestor
- //! of the specified block, or nullopt if no common ancestor is found.
+ //! Return height of the specified block if it is on the chain, otherwise
+ //! return the height of the highest block on chain that's an ancestor
+ //! of the specified block, or nullopt if there is no common ancestor.
//! Also return the height of the specified block as an optional output
//! parameter (to avoid the cost of a second hash lookup in case this
//! information is desired).
@@ -135,9 +136,9 @@ public:
//! Get locator for the current chain tip.
virtual CBlockLocator getTipLocator() = 0;
- //! Return height of the latest block common to locator and chain, which
- //! is guaranteed to be an ancestor of the block used to create the
- //! locator.
+ //! Return height of the highest block on chain in common with the locator,
+ //! which will either be the original block used to create the locator,
+ //! or one of its ancestors.
virtual Optional<int> findLocatorFork(const CBlockLocator& locator) = 0;
//! Check if transaction will be final given chain height current time.