X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fchain%2Fchaininterface.rs;h=9909e115ed610d63f10fdfab9ee8397ac1363641;hb=68af6d080968f67e965b94f2cee1dea662e3c161;hp=2e37127e038548ebe86888e185f52af1b9264551;hpb=6264a442599fbadd54b0cc24949fc0fd9de08fb3;p=rust-lightning

diff --git a/lightning/src/chain/chaininterface.rs b/lightning/src/chain/chaininterface.rs
index 2e37127e..9909e115 100644
--- a/lightning/src/chain/chaininterface.rs
+++ b/lightning/src/chain/chaininterface.rs
@@ -147,6 +147,10 @@ pub enum ConfirmationTarget {
 ///
 /// Note that all of the functions implemented here *must* be reentrant-safe (obviously - they're
 /// called from inside the library in response to chain events, P2P events, or timer events).
+///
+/// LDK may generate a substantial number of fee-estimation calls in some cases. You should
+/// pre-calculate and cache the fee estimate results to ensure you don't substantially slow HTLC
+/// handling.
 pub trait FeeEstimator {
 	/// Gets estimated satoshis of fee required per 1000 Weight-Units.
 	///