Add reason to `Event::PaymentFailed`

[rust-lightning] / lightning / src / events / mod.rs

diff --git a/lightning/src/events/mod.rs b/lightning/src/events/mod.rs
index 24252e38ebaee6103c6e359d25062f0077a8103c..63762dc55d4a95b82e95c8660ae652809641a9c1 100644 (file)
--- a/lightning/src/events/mod.rs
+++ b/lightning/src/events/mod.rs
@@ -475,6 +475,9 @@ pub enum Event {
                ///
                /// [`ChannelManager::send_payment`]: crate::ln::channelmanager::ChannelManager::send_payment
                payment_hash: PaymentHash,
+               /// The reason the payment failed. This is only `None` for events generated or serialized
+               /// by versions prior to 0.0.115.
+               reason: Option<PaymentFailureReason>,
        },
        /// Indicates that a path for an outbound payment was successful.
        ///
@@ -940,10 +943,11 @@ impl Writeable for Event {
                                        (4, *path, vec_type)
                                })
                        },
-                       &Event::PaymentFailed { ref payment_id, ref payment_hash } => {
+                       &Event::PaymentFailed { ref payment_id, ref payment_hash, ref reason } => {
                                15u8.write(writer)?;
                                write_tlv_fields!(writer, {
                                        (0, payment_id, required),
+                                       (1, reason, option),
                                        (2, payment_hash, required),
                                })
                        },
@@ -1245,13 +1249,16 @@ impl MaybeReadable for Event {
                                let f = || {
                                        let mut payment_hash = PaymentHash([0; 32]);
                                        let mut payment_id = PaymentId([0; 32]);
+                                       let mut reason = None;
                                        read_tlv_fields!(reader, {
                                                (0, payment_id, required),
+                                               (1, reason, upgradable_option),
                                                (2, payment_hash, required),
                                        });
                                        Ok(Some(Event::PaymentFailed {
                                                payment_id,
                                                payment_hash,
+                                               reason,
                                        }))
                                };
                                f()