Merge rust-bitcoin/rust-bitcoin#1144: Remove deprecated `StreamReader`
0c9c14128bRemove deprecated `StreamReader` (Martin Habovstiak) Pull request description: `StreamReader` was deprecated for a while, yet we needlessly maintain it and it eats our testing time. This change removes it completely. Closes #1123 ACKs for top commit: tcharding: ACK0c9c14128b(with the function rename). sanket1729: utACK0c9c14128b. apoelstra: ACK0c9c14128bTree-SHA512: 3f10c48081f92c02bc5a9f3187df1d9279451a79eb2776b10b3e4c4dc5370a9816b3eb5f04b6e1ede61dfe13c1844d606ba00b00a2bfc6a56aefda900cd9ccc2
This commit is contained in:
Andrew Poelstra
commit
ef5014f3e8
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@ -533,20 +533,18 @@ mod tests {
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mod benches {
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mod benches {
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use super::Block;
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use super::Block;
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use crate::EmptyWrite;
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use crate::EmptyWrite;
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use crate::consensus::{deserialize, Encodable};
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use crate::consensus::{deserialize, Encodable, Decodable};
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use test::{black_box, Bencher};
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use test::{black_box, Bencher};
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use crate::network::stream_reader::StreamReader;
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#[bench]
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#[bench]
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#[allow(deprecated)]
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pub fn bench_stream_reader(bh: &mut Bencher) {
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pub fn bench_stream_reader(bh: &mut Bencher) {
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let big_block = include_bytes!("../../test_data/mainnet_block_000000000000000000000c835b2adcaedc20fdf6ee440009c249452c726dafae.raw");
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let big_block = include_bytes!("../../test_data/mainnet_block_000000000000000000000c835b2adcaedc20fdf6ee440009c249452c726dafae.raw");
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assert_eq!(big_block.len(), 1_381_836);
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assert_eq!(big_block.len(), 1_381_836);
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let big_block = black_box(big_block);
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let big_block = black_box(big_block);
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bh.iter(|| {
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bh.iter(|| {
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let mut reader = StreamReader::new(&big_block[..], None);
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let mut reader = &big_block[..];
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let block: Block = reader.read_next().unwrap();
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let block = Block::consensus_decode(&mut reader).unwrap();
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black_box(&block);
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black_box(&block);
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});
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});
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}
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}
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@ -33,6 +33,3 @@ pub mod message_network;
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#[cfg(feature = "std")]
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#[cfg(feature = "std")]
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#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
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#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
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pub mod message_filter;
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pub mod message_filter;
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#[cfg(feature = "std")]
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#[cfg_attr(docsrs, doc(cfg(feature = "std")))]
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pub mod stream_reader;
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@ -1,305 +0,0 @@
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// Written in 2014 by Andrew Poelstra <apoelstra@wpsoftware.net>
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// SPDX-License-Identifier: CC0-1.0
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//! Stream reader.
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//!
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//! Deprecated
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//!
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//! This module defines `StreamReader` struct and its implementation which is used
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//! for parsing incoming stream into separate `Decodable`s, handling assembling
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//! messages from multiple packets or dealing with partial or multiple messages in the stream
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//! (like can happen with reading from TCP socket)
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//!
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use core::fmt;
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use crate::io::{Read, BufReader};
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use crate::consensus::{encode, Decodable};
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/// Struct used to configure stream reader function
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pub struct StreamReader<R: Read> {
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/// Stream to read from
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pub stream: BufReader<R>,
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}
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impl<R: Read> fmt::Debug for StreamReader<R> {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "StreamReader")
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}
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}
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impl<R: Read> StreamReader<R> {
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/// Constructs new stream reader for a given input stream `stream`
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#[deprecated(since = "0.28.0", note = "wrap your stream into a buffered reader if necessary and use consensus_encode directly")]
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pub fn new(stream: R, _buffer_size: Option<usize>) -> StreamReader<R> {
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StreamReader {
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stream: BufReader::new(stream),
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}
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}
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/// Reads stream and parses next message from its current input
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#[deprecated(since = "0.28.0", note = "wrap your stream into a buffered reader if necessary and use consensus_encode directly")]
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pub fn read_next<D: Decodable>(&mut self) -> Result<D, encode::Error> {
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Decodable::consensus_decode(&mut self.stream)
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}
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}
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#[allow(deprecated)]
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#[cfg(test)]
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mod test {
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use std::thread;
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use std::time::Duration;
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use crate::io::{BufReader, Write};
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use std::net::{TcpListener, TcpStream, Shutdown};
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use std::thread::JoinHandle;
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use crate::network::constants::ServiceFlags;
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use super::StreamReader;
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use crate::network::message::{NetworkMessage, RawNetworkMessage};
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// First, let's define some byte arrays for sample messages - dumps are taken from live
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// Bitcoin Core node v0.17.1 with Wireshark
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const MSG_VERSION: [u8; 126] = [
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0xf9, 0xbe, 0xb4, 0xd9, 0x76, 0x65, 0x72, 0x73,
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0x69, 0x6f, 0x6e, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x66, 0x00, 0x00, 0x00, 0xbe, 0x61, 0xb8, 0x27,
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0x7f, 0x11, 0x01, 0x00, 0x0d, 0x04, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0xf0, 0x0f, 0x4d, 0x5c,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
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0x5b, 0xf0, 0x8c, 0x80, 0xb4, 0xbd, 0x0d, 0x04,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0xfa, 0xa9, 0x95, 0x59, 0xcc, 0x68, 0xa1, 0xc1,
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0x10, 0x2f, 0x53, 0x61, 0x74, 0x6f, 0x73, 0x68,
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0x69, 0x3a, 0x30, 0x2e, 0x31, 0x37, 0x2e, 0x31,
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0x2f, 0x93, 0x8c, 0x08, 0x00, 0x01
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];
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const MSG_VERACK: [u8; 24] = [
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0xf9, 0xbe, 0xb4, 0xd9, 0x76, 0x65, 0x72, 0x61,
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0x63, 0x6b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x5d, 0xf6, 0xe0, 0xe2
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];
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const MSG_PING: [u8; 32] = [
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0xf9, 0xbe, 0xb4, 0xd9, 0x70, 0x69, 0x6e, 0x67,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x08, 0x00, 0x00, 0x00, 0x24, 0x67, 0xf1, 0x1d,
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0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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];
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const MSG_ALERT: [u8; 192] = [
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0xf9, 0xbe, 0xb4, 0xd9, 0x61, 0x6c, 0x65, 0x72,
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0x74, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0xa8, 0x00, 0x00, 0x00, 0x1b, 0xf9, 0xaa, 0xea,
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0x60, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff,
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0x7f, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff,
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0x7f, 0xfe, 0xff, 0xff, 0x7f, 0x01, 0xff, 0xff,
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0xff, 0x7f, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
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0xff, 0x7f, 0x00, 0xff, 0xff, 0xff, 0x7f, 0x00,
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0x2f, 0x55, 0x52, 0x47, 0x45, 0x4e, 0x54, 0x3a,
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0x20, 0x41, 0x6c, 0x65, 0x72, 0x74, 0x20, 0x6b,
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0x65, 0x79, 0x20, 0x63, 0x6f, 0x6d, 0x70, 0x72,
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0x6f, 0x6d, 0x69, 0x73, 0x65, 0x64, 0x2c, 0x20,
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0x75, 0x70, 0x67, 0x72, 0x61, 0x64, 0x65, 0x20,
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0x72, 0x65, 0x71, 0x75, 0x69, 0x72, 0x65, 0x64,
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0x00, 0x46, 0x30, 0x44, 0x02, 0x20, 0x65, 0x3f,
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0xeb, 0xd6, 0x41, 0x0f, 0x47, 0x0f, 0x6b, 0xae,
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0x11, 0xca, 0xd1, 0x9c, 0x48, 0x41, 0x3b, 0xec,
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0xb1, 0xac, 0x2c, 0x17, 0xf9, 0x08, 0xfd, 0x0f,
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0xd5, 0x3b, 0xdc, 0x3a, 0xbd, 0x52, 0x02, 0x20,
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0x6d, 0x0e, 0x9c, 0x96, 0xfe, 0x88, 0xd4, 0xa0,
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0xf0, 0x1e, 0xd9, 0xde, 0xda, 0xe2, 0xb6, 0xf9,
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0xe0, 0x0d, 0xa9, 0x4c, 0xad, 0x0f, 0xec, 0xaa,
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0xe6, 0x6e, 0xcf, 0x68, 0x9b, 0xf7, 0x1b, 0x50
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];
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// Helper functions that checks parsed versions of the messages from the byte arrays above
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fn check_version_msg(msg: &RawNetworkMessage) {
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assert_eq!(msg.magic, 0xd9b4bef9);
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if let NetworkMessage::Version(ref version_msg) = msg.payload {
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assert_eq!(version_msg.version, 70015);
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assert_eq!(version_msg.services, ServiceFlags::NETWORK | ServiceFlags::BLOOM | ServiceFlags::WITNESS | ServiceFlags::NETWORK_LIMITED);
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assert_eq!(version_msg.timestamp, 1548554224);
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assert_eq!(version_msg.nonce, 13952548347456104954);
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assert_eq!(version_msg.user_agent, "/Satoshi:0.17.1/");
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assert_eq!(version_msg.start_height, 560275);
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assert!(version_msg.relay);
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} else {
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panic!("Wrong message type: expected VersionMessage");
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}
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}
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fn check_alert_msg(msg: &RawNetworkMessage) {
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assert_eq!(msg.magic, 0xd9b4bef9);
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if let NetworkMessage::Alert(ref alert) = msg.payload {
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assert_eq!(alert.clone(), [
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0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff,
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0x7f, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff,
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0x7f, 0xfe, 0xff, 0xff, 0x7f, 0x01, 0xff, 0xff,
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0xff, 0x7f, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
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0xff, 0x7f, 0x00, 0xff, 0xff, 0xff, 0x7f, 0x00,
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0x2f, 0x55, 0x52, 0x47, 0x45, 0x4e, 0x54, 0x3a,
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0x20, 0x41, 0x6c, 0x65, 0x72, 0x74, 0x20, 0x6b,
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0x65, 0x79, 0x20, 0x63, 0x6f, 0x6d, 0x70, 0x72,
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0x6f, 0x6d, 0x69, 0x73, 0x65, 0x64, 0x2c, 0x20,
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0x75, 0x70, 0x67, 0x72, 0x61, 0x64, 0x65, 0x20,
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0x72, 0x65, 0x71, 0x75, 0x69, 0x72, 0x65, 0x64,
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0x00,
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].to_vec());
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} else {
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panic!("Wrong message type: expected AlertMessage");
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}
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}
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#[test]
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fn read_singlemsg_test() {
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let stream = MSG_VERSION[..].to_vec();
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let stream = stream.as_slice();
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let message = StreamReader::new(stream, None).read_next().unwrap();
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check_version_msg(&message);
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}
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#[test]
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fn read_doublemsgs_test() {
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let mut stream = MSG_VERSION.to_vec();
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stream.extend(&MSG_PING);
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let stream = stream.as_slice();
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let mut reader = StreamReader::new(stream, None);
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let message = reader.read_next().unwrap();
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check_version_msg(&message);
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let msg: RawNetworkMessage = reader.read_next().unwrap();
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assert_eq!(msg.magic, 0xd9b4bef9);
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if let NetworkMessage::Ping(nonce) = msg.payload {
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assert_eq!(nonce, 100);
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} else {
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panic!("Wrong message type, expected PingMessage");
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}
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}
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// Helper function that set ups emulation of client-server TCP connection for
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// testing message transfer via TCP packets
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fn serve_tcp(pieces: Vec<Vec<u8>>) -> (JoinHandle<()>, BufReader<TcpStream>) {
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// 1. Creating server part (emulating Bitcoin Core node)
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let listener = TcpListener::bind(format!("127.0.0.1:{}", 0)).unwrap();
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let port = listener.local_addr().unwrap().port();
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// 2. Spawning thread that will be writing our messages to the TCP Stream at the server side
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// in async mode
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let handle = thread::spawn(move || {
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// We only simulate a single connection.
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let (mut ostream, _) = listener.accept().unwrap();
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for piece in pieces {
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ostream.write_all(&piece[..]).unwrap();
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ostream.flush().unwrap();
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thread::sleep(Duration::from_secs(1));
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}
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ostream.shutdown(Shutdown::Both).unwrap();
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});
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// 3. Creating client side of the TCP socket connection
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thread::sleep(Duration::from_secs(1));
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let istream = TcpStream::connect(format!("127.0.0.1:{}", port)).unwrap();
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let reader = BufReader::new(istream);
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(handle, reader)
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}
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#[test]
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fn read_multipartmsg_test() {
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// Setting up TCP connection emulation
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let (handle, stream) = serve_tcp(vec![
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// single message split in two parts to emulate real network conditions
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MSG_VERSION[..24].to_vec(), MSG_VERSION[24..].to_vec()
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]);
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let mut reader = StreamReader::new(stream, None);
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// Reading and checking the whole message back
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let message = reader.read_next().unwrap();
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check_version_msg(&message);
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// Waiting TCP server thread to terminate
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handle.join().unwrap();
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}
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#[test]
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fn read_sequencemsg_test() {
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// Setting up TCP connection emulation
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let (handle, stream) = serve_tcp(vec![
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// Real-world Bitcoin core communication case for /Satoshi:0.17.1/
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MSG_VERSION[..23].to_vec(), MSG_VERSION[23..].to_vec(),
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MSG_VERACK.to_vec(),
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MSG_ALERT[..24].to_vec(), MSG_ALERT[24..].to_vec()
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]);
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let mut reader = StreamReader::new(stream, None);
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||||||
// Reading and checking the first message (Version)
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let message = reader.read_next().unwrap();
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||||||
check_version_msg(&message);
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// Reading and checking the second message (Verack)
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let msg: RawNetworkMessage = reader.read_next().unwrap();
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assert_eq!(msg.magic, 0xd9b4bef9);
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assert_eq!(msg.payload, NetworkMessage::Verack, "Wrong message type, expected VerackMessage");
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||||||
// Reading and checking the third message (Alert)
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let msg = reader.read_next().unwrap();
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check_alert_msg(&msg);
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// Waiting TCP server thread to terminate
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handle.join().unwrap();
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|
||||||
}
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
fn read_block_from_file_test() {
|
|
||||||
use crate::io;
|
|
||||||
use crate::consensus::serialize;
|
|
||||||
use crate::hashes::hex::FromHex;
|
|
||||||
use crate::Block;
|
|
||||||
|
|
||||||
let normal_data = Vec::from_hex("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").unwrap();
|
|
||||||
let cutoff_data = Vec::from_hex("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").unwrap();
|
|
||||||
let prevhash = Vec::from_hex("4ddccd549d28f385ab457e98d1b11ce80bfea2c5ab93015ade4973e400000000").unwrap();
|
|
||||||
let merkle = Vec::from_hex("bf4473e53794beae34e64fccc471dace6ae544180816f89591894e0f417a914c").unwrap();
|
|
||||||
|
|
||||||
let stream = io::BufReader::new(&normal_data[..]);
|
|
||||||
let mut reader = StreamReader::new(stream, None);
|
|
||||||
let normal_block = reader.read_next::<Block>();
|
|
||||||
|
|
||||||
let stream = io::BufReader::new(&cutoff_data[..]);
|
|
||||||
let mut reader = StreamReader::new(stream, None);
|
|
||||||
let cutoff_block = reader.read_next::<Block>();
|
|
||||||
|
|
||||||
assert!(normal_block.is_ok());
|
|
||||||
assert!(cutoff_block.is_err());
|
|
||||||
let block = normal_block.unwrap();
|
|
||||||
assert_eq!(block.header.version, 1);
|
|
||||||
assert_eq!(serialize(&block.header.prev_blockhash), prevhash);
|
|
||||||
assert_eq!(serialize(&block.header.merkle_root), merkle);
|
|
||||||
assert_eq!(block.header.time, 1231965655);
|
|
||||||
assert_eq!(block.header.bits, 486604799);
|
|
||||||
assert_eq!(block.header.nonce, 2067413810);
|
|
||||||
|
|
||||||
// should be also ok for a non-witness block as commitment is optional in that case
|
|
||||||
assert!(block.check_witness_commitment());
|
|
||||||
}
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
fn parse_multipartmsg_test() {
|
|
||||||
let mut multi = MSG_ALERT.to_vec();
|
|
||||||
multi.extend(&MSG_ALERT[..]);
|
|
||||||
let mut reader = StreamReader::new(&multi[..], None);
|
|
||||||
let message: Result<RawNetworkMessage, _> = reader.read_next();
|
|
||||||
assert!(message.is_ok());
|
|
||||||
check_alert_msg(&message.unwrap());
|
|
||||||
let message: Result<RawNetworkMessage, _> = reader.read_next();
|
|
||||||
assert!(message.is_ok());
|
|
||||||
check_alert_msg(&message.unwrap());
|
|
||||||
}
|
|
||||||
}
|
|
||||||
Loading…
Reference in New Issue