Router: clean up Path construction

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

diff --git a/lightning/src/ln/features.rs b/lightning/src/ln/features.rs
index b8087546c7445060230a5ad776a9b3f13c113d37..41b15c97c9ae63c5aaae4f4f3ef1a810da11efaa 100644 (file)
--- a/lightning/src/ln/features.rs
+++ b/lightning/src/ln/features.rs
@@ -535,11 +535,17 @@ impl InvoiceFeatures {
        /// [`PaymentParameters::for_keysend`], thus omitting the need for payers to manually construct an
        /// `InvoiceFeatures` for [`find_route`].
        ///
+       /// MPP keysend is not widely supported yet, so we parameterize support to allow the user to
+       /// choose whether their router should find multi-part routes.
+       ///
        /// [`PaymentParameters::for_keysend`]: crate::routing::router::PaymentParameters::for_keysend
        /// [`find_route`]: crate::routing::router::find_route
-       pub(crate) fn for_keysend() -> InvoiceFeatures {
+       pub(crate) fn for_keysend(allow_mpp: bool) -> InvoiceFeatures {
                let mut res = InvoiceFeatures::empty();
                res.set_variable_length_onion_optional();
+               if allow_mpp {
+                       res.set_basic_mpp_optional();
+               }
                res
        }
 }