Add serialization/deserialization BitcoinOutpoint

Author: Antoine Riard

src/util/ser.rs

@@ -10,6 +10,7 @@ use secp256k1::Signature;
 use secp256k1::key::{PublicKey, SecretKey};
 use bitcoin::util::hash::Sha256dHash;
 use bitcoin::blockdata::script::Script;
+use bitcoin::blockdata::transaction::OutPoint as BitcoinOutPoint;
 use std::marker::Sized;
 use ln::msgs::DecodeError;
 use ln::channelmanager::{PaymentPreimage, PaymentHash};
@@ -420,3 +421,20 @@ impl<R, T> Readable<R> for Option<T>
 		}
 	}
 }
+
+
+impl<R: Read> Readable<R> for BitcoinOutPoint {
+	fn read(r: &mut R) -> Result<Self, DecodeError> {
+		let txid = Readable::read(r)?;
+		let vout = Readable::read(r)?;
+		Ok(BitcoinOutPoint { txid, vout })
+	}
+}
+
+impl Writeable for BitcoinOutPoint {
+	fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
+		self.txid.as_bytes().write(w)?;
+		w.write_all(&byte_utils::be32_to_array(self.vout))?;
+		Ok(())
+	}
+}