Merge pull request #679 from ariard/2020-08-concurrent-watchtowers

[rust-lightning] / lightning / src / util / ser.rs

diff --git a/lightning/src/util/ser.rs b/lightning/src/util/ser.rs
index 5a68f7a5eb4164a43753630d4e7015b712ac2f37..961d4f1020073f8d76553374ef0cec394e217828 100644 (file)
--- a/lightning/src/util/ser.rs
+++ b/lightning/src/util/ser.rs
@@ -1,20 +1,29 @@
+// 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;
 use std::sync::Mutex;
 use std::cmp;
 
-use secp256k1::Signature;
-use secp256k1::key::{PublicKey, SecretKey};
+use bitcoin::secp256k1::Signature;
+use bitcoin::secp256k1::key::{PublicKey, SecretKey};
 use bitcoin::blockdata::script::Script;
 use bitcoin::blockdata::transaction::{OutPoint, Transaction, TxOut};
 use bitcoin::consensus;
 use bitcoin::consensus::Encodable;
-use bitcoin_hashes::sha256d::Hash as Sha256dHash;
+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
 {
@@ -542,7 +561,7 @@ impl Writeable for Sha256dHash {
 
 impl Readable for Sha256dHash {
        fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
-               use bitcoin_hashes::Hash;
+               use bitcoin::hashes::Hash;
 
                let buf: [u8; 32] = Readable::read(r)?;
                Ok(Sha256dHash::from_slice(&buf[..]).unwrap())
@@ -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)?;