Add inbound htlc min/max to `ChannelDetails`

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

diff --git a/lightning/src/ln/channel.rs b/lightning/src/ln/channel.rs
index 9ccdf816ad398d764d599b62e45e0e1274391572..12fd6958348f07fed591be0eb79252ede1c30bb2 100644 (file)
--- a/lightning/src/ln/channel.rs
+++ b/lightning/src/ln/channel.rs
@@ -4321,11 +4321,15 @@ impl<Signer: Sign> Channel<Signer> {
        }
 
        /// Allowed in any state (including after shutdown)
-       #[cfg(test)]
        pub fn get_holder_htlc_minimum_msat(&self) -> u64 {
                self.holder_htlc_minimum_msat
        }
 
+       /// Allowed in any state (including after shutdown), but will return none before TheirInitSent
+       pub fn get_holder_htlc_maximum_msat(&self) -> Option<u64> {
+               self.get_htlc_maximum_msat(self.holder_max_htlc_value_in_flight_msat)
+       }
+
        /// Allowed in any state (including after shutdown)
        pub fn get_announced_htlc_max_msat(&self) -> u64 {
                return cmp::min(
@@ -4343,6 +4347,16 @@ impl<Signer: Sign> Channel<Signer> {
                self.counterparty_htlc_minimum_msat
        }
 
+       fn get_htlc_maximum_msat(&self, party_max_htlc_value_in_flight_msat: u64) -> Option<u64> {
+               self.counterparty_selected_channel_reserve_satoshis.map(|counterparty_reserve| {
+                       let holder_reserve = self.holder_selected_channel_reserve_satoshis;
+                       cmp::min(
+                               (self.channel_value_satoshis - counterparty_reserve - holder_reserve) * 1000,
+                               party_max_htlc_value_in_flight_msat
+                       )
+               })
+       }
+
        pub fn get_value_satoshis(&self) -> u64 {
                self.channel_value_satoshis
        }