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#![deny(missing_docs)]
mod reader;
mod stream;
mod writer;
pub use crate::reader::AsyncBincodeReader;
pub use crate::stream::AsyncBincodeStream;
pub use crate::writer::AsyncBincodeWriter;
pub use crate::writer::{AsyncDestination, BincodeWriterFor, SyncDestination};
use byteorder::{NetworkEndian, WriteBytesExt};
pub fn serialize_into<W, T: ?Sized>(mut writer: W, value: &T) -> bincode::Result<()>
where
W: std::io::Write,
T: serde::Serialize,
{
let mut c = bincode::config();
let c = c.limit(u32::max_value() as u64);
let size = c.serialized_size(value)? as u32;
writer.write_u32::<NetworkEndian>(size)?;
c.serialize_into(writer, value)
}
#[cfg(test)]
mod tests {
use super::*;
use tokio::prelude::*;
#[tokio::test]
async fn it_works() {
let mut echo = tokio::net::TcpListener::bind("127.0.0.1:0").await.unwrap();
let addr = echo.local_addr().unwrap();
tokio::spawn(
async move {
let (stream, _) = echo.accept().await.unwrap();
let (r, w) = AsyncBincodeStream::<_, usize, usize, _>::from(stream)
.for_async()
.split();
r.forward(w).await.unwrap();
}
);
let client = tokio::net::TcpStream::connect(&addr).await.unwrap();
let mut client = AsyncBincodeStream::<_, usize, usize, _>::from(client).for_async();
client.send(42).await.unwrap();
assert_eq!(client.next().await.unwrap().unwrap(), 42);
client.send(44).await.unwrap();
assert_eq!(client.next().await.unwrap().unwrap(), 44);
drop(client);
}
#[tokio::test]
async fn lots() {
let mut echo = tokio::net::TcpListener::bind("127.0.0.1:0").await.unwrap();
let addr = echo.local_addr().unwrap();
tokio::spawn(
async move {
let (stream, _) = echo.accept().await.unwrap();
let (r, w) = AsyncBincodeStream::<_, usize, usize, _>::from(stream)
.for_async()
.split();
r.forward(w).await.unwrap();
}
);
let n = 81920;
let stream = tokio::net::TcpStream::connect(&addr).await.unwrap();
let mut c = AsyncBincodeStream::from(stream).for_async();
futures::stream::iter(0usize..n).map(Ok).forward(&mut c).await.unwrap();
tokio::net::tcp::TcpStream::shutdown(c.get_mut(), std::net::Shutdown::Write).unwrap();
let mut at = 0;
while let Some(got) = c.next().await.transpose().unwrap() {
assert_eq!(at, got);
at += 1;
}
assert_eq!(at, n);
}
}