Clarify decode_update_add_htlc_onion comment

[rust-lightning] / lightning / src / ln / channelmanager.rs

diff --git a/lightning/src/ln/channelmanager.rs b/lightning/src/ln/channelmanager.rs
index d8d79b9acd2d48238df33ce642c501c3997cd99b..1fbdde870095576edba2505addfcb91f6d0f9077 100644 (file)
--- a/lightning/src/ln/channelmanager.rs
+++ b/lightning/src/ln/channelmanager.rs
@@ -1465,10 +1465,11 @@ impl<Signer: Sign, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref> ChannelMana
 
                        // OUR PAYMENT!
                        // final_expiry_too_soon
-                       // We have to have some headroom to broadcast on chain if we have the preimage, so make sure we have at least
-                       // HTLC_FAIL_BACK_BUFFER blocks to go.
-                       // Also, ensure that, in the case of an unknown payment hash, our payment logic has enough time to fail the HTLC backward
-                       // before our onchain logic triggers a channel closure (see HTLC_FAIL_BACK_BUFFER rational).
+                       // We have to have some headroom to broadcast on chain if we have the preimage, so make sure
+                       // we have at least HTLC_FAIL_BACK_BUFFER blocks to go.
+                       // Also, ensure that, in the case of an unknown preimage for the received payment hash, our
+                       // payment logic has enough time to fail the HTLC backward before our onchain logic triggers a
+                       // channel closure (see HTLC_FAIL_BACK_BUFFER rationale).
                        if (msg.cltv_expiry as u64) <= self.best_block.read().unwrap().height() as u64 + HTLC_FAIL_BACK_BUFFER as u64 + 1 {
                                return_err!("The final CLTV expiry is too soon to handle", 17, &[0;0]);
                        }