X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Futil%2Fser.rs;h=961d4f1020073f8d76553374ef0cec394e217828;hb=e9d3033e5caae5d708b52270416fff1973253d39;hp=fd0e9f7a383b2bb9e0530e183e5ee9203218e065;hpb=eff8af21103e43f763cb10ae6a75c1543a2d4068;p=rust-lightning

diff --git a/lightning/src/util/ser.rs b/lightning/src/util/ser.rs
index fd0e9f7a..961d4f10 100644
--- a/lightning/src/util/ser.rs
+++ b/lightning/src/util/ser.rs
@@ -1,7 +1,15 @@
+// This file is Copyright its original authors, visible in version control
+// history.
+//
+// This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
+// or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
+// You may not use this file except in accordance with one or both of these
+// licenses.
+
 //! A very simple serialization framework which is used to serialize/deserialize messages as well
 //! as ChannelsManagers and ChannelMonitors.
 
-use std::result::Result;
 use std::io::{Read, Write};
 use std::collections::HashMap;
 use std::hash::Hash;
@@ -15,6 +23,7 @@ use bitcoin::blockdata::transaction::{OutPoint, Transaction, TxOut};
 use bitcoin::consensus;
 use bitcoin::consensus::Encodable;
 use bitcoin::hashes::sha256d::Hash as Sha256dHash;
+use bitcoin::hash_types::{Txid, BlockHash};
 use std::marker::Sized;
 use ln::msgs::DecodeError;
 use ln::channelmanager::{PaymentPreimage, PaymentHash, PaymentSecret};
@@ -28,6 +37,8 @@ const MAX_BUF_SIZE: usize = 64 * 1024;
 /// buffers being written into.
 /// An impl is provided for any type that also impls std::io::Write which simply ignores size
 /// hints.
+///
+/// (C-not exported) as we only export serialization to/from byte arrays instead
 pub trait Writer {
 	/// Writes the given buf out. See std::io::Write::write_all for more
 	fn write_all(&mut self, buf: &[u8]) -> Result<(), ::std::io::Error>;
@@ -150,6 +161,8 @@ impl<R: Read> Read for ReadTrackingReader<R> {
 }
 
 /// A trait that various rust-lightning types implement allowing them to be written out to a Writer
+///
+/// (C-not exported) as we only export serialization to/from byte arrays instead
 pub trait Writeable {
 	/// Writes self out to the given Writer
 	fn write<W: Writer>(&self, writer: &mut W) -> Result<(), ::std::io::Error>;
@@ -177,6 +190,8 @@ impl<'a, T: Writeable> Writeable for &'a T {
 }
 
 /// A trait that various rust-lightning types implement allowing them to be read in from a Read
+///
+/// (C-not exported) as we only export serialization to/from byte arrays instead
 pub trait Readable
 	where Self: Sized
 {
@@ -186,6 +201,8 @@ pub trait Readable
 
 /// A trait that various higher-level rust-lightning types implement allowing them to be read in
 /// from a Read given some additional set of arguments which is required to deserialize.
+///
+/// (C-not exported) as we only export serialization to/from byte arrays instead
 pub trait ReadableArgs<P>
 	where Self: Sized
 {
@@ -194,6 +211,8 @@ pub trait ReadableArgs<P>
 }
 
 /// A trait that various rust-lightning types implement allowing them to (maybe) be read in from a Read
+///
+/// (C-not exported) as we only export serialization to/from byte arrays instead
 pub trait MaybeReadable
 	where Self: Sized
 {
@@ -632,6 +651,36 @@ impl<T: Readable> Readable for Option<T>
 	}
 }
 
+impl Writeable for Txid {
+	fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
+		w.write_all(&self[..])
+	}
+}
+
+impl Readable for Txid {
+	fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
+		use bitcoin::hashes::Hash;
+
+		let buf: [u8; 32] = Readable::read(r)?;
+		Ok(Txid::from_slice(&buf[..]).unwrap())
+	}
+}
+
+impl Writeable for BlockHash {
+	fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
+		w.write_all(&self[..])
+	}
+}
+
+impl Readable for BlockHash {
+	fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
+		use bitcoin::hashes::Hash;
+
+		let buf: [u8; 32] = Readable::read(r)?;
+		Ok(BlockHash::from_slice(&buf[..]).unwrap())
+	}
+}
+
 impl Writeable for OutPoint {
 	fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
 		self.txid.write(w)?;