X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=src%2Fchain%2Ftransaction.rs;fp=src%2Fchain%2Ftransaction.rs;h=00728b45033a53844ba94451d4d6907475b1d419;hb=d0e9137bc5f8f31cc5e9c63b94f1450bdb18b524;hp=0000000000000000000000000000000000000000;hpb=d8474c9d3c422dddf6cf4b5a4f52157a0277203a;p=rust-lightning

diff --git a/src/chain/transaction.rs b/src/chain/transaction.rs
new file mode 100644
index 00000000..00728b45
--- /dev/null
+++ b/src/chain/transaction.rs
@@ -0,0 +1,24 @@
+use bitcoin::util::hash::Sha256dHash;
+use bitcoin::util::uint::Uint256;
+
+/// A reference to a transaction output.
+#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Debug, Hash)]
+pub struct OutPoint {
+	/// The referenced transaction's txid.
+	pub txid: Sha256dHash,
+	/// The index of the referenced output in its transaction's vout.
+	pub index: u16,
+}
+
+impl OutPoint {
+	/// Creates a new `OutPoint` from the txid an the index.
+	pub fn new(txid: Sha256dHash, index: u16) -> OutPoint {
+		OutPoint { txid, index }
+	}
+
+    /// Convert an `OutPoint` to a lightning channel id.
+    pub fn to_channel_id(&self) -> Uint256 {
+        // TODO: or le?
+        self.txid.into_be() ^ Uint256::from_u64(self.index as u64).unwrap()
+    }
+}