forked from jonhoo/please-ignore
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Split tokio-proto into pipeline and multiplex
- Loading branch information
Showing
3 changed files
with
164 additions
and
6 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,154 @@ | ||
| #[macro_use] | ||
| extern crate tarpc_bench; | ||
|
|
||
| extern crate futures; | ||
| extern crate tokio_core; | ||
| extern crate tokio_proto; | ||
| extern crate tokio_service; | ||
| extern crate net2; | ||
|
|
||
| use std::str; | ||
| use std::io::{self, ErrorKind, Write}; | ||
|
|
||
| use futures::{future, Future, BoxFuture}; | ||
| use tokio_core::io::{Io, Codec, Framed, EasyBuf}; | ||
| use tokio_core::net::TcpListener; | ||
| use tokio_proto::pipeline::{ServerProto, ClientProto}; | ||
| use tokio_proto::TcpClient; | ||
| use tokio_service::Service; | ||
| use tokio_core::reactor::Core; | ||
| use futures::stream::Stream; | ||
| use tokio_proto::BindServer; | ||
| use std::net::SocketAddr; | ||
|
|
||
| // First, we implement a *codec*, which provides a way of encoding and | ||
| // decoding messages for the protocol. See the documentation for `Codec` in | ||
| // `tokio-core` for more details on how that works. | ||
|
|
||
| #[derive(Default)] | ||
| pub struct IntCodec; | ||
|
|
||
| fn parse_u64(from: &[u8]) -> Result<u64, io::Error> { | ||
| Ok(str::from_utf8(from).map_err(|e| io::Error::new(ErrorKind::InvalidData, e))? | ||
| .parse() | ||
| .map_err(|e| io::Error::new(ErrorKind::InvalidData, e))?) | ||
| } | ||
|
|
||
| impl Codec for IntCodec { | ||
| type In = u64; | ||
| type Out = u64; | ||
|
|
||
| // Attempt to decode a message from the given buffer if a complete | ||
| // message is available; returns `Ok(None)` if the buffer does not yet | ||
| // hold a complete message. | ||
| fn decode(&mut self, buf: &mut EasyBuf) -> Result<Option<u64>, io::Error> { | ||
| if let Some(i) = buf.as_slice().iter().position(|&b| b == b'\n') { | ||
| // remove the line, including the '\n', from the buffer | ||
| let full_line = buf.drain_to(i + 1); | ||
|
|
||
| // strip the'`\n' | ||
| let slice = &full_line.as_slice()[..i]; | ||
|
|
||
| Ok(Some(parse_u64(slice)?)) | ||
| } else { | ||
| Ok(None) | ||
| } | ||
| } | ||
|
|
||
| // Attempt to decode a message assuming that the given buffer contains | ||
| // *all* remaining input data. | ||
| fn decode_eof(&mut self, buf: &mut EasyBuf) -> io::Result<u64> { | ||
| let amt = buf.len(); | ||
| Ok(parse_u64(buf.drain_to(amt).as_slice())?) | ||
| } | ||
|
|
||
| fn encode(&mut self, item: u64, into: &mut Vec<u8>) -> io::Result<()> { | ||
| writeln!(into, "{}", item).map(|_| ()) | ||
| } | ||
| } | ||
|
|
||
| // Next, we implement the server protocol, which just hooks up the codec above. | ||
|
|
||
| pub struct IntProto; | ||
|
|
||
| impl<T: Io + 'static> ServerProto<T> for IntProto { | ||
| type Request = u64; | ||
| type Response = u64; | ||
| type Transport = Framed<T, IntCodec>; | ||
| type BindTransport = Result<Self::Transport, io::Error>; | ||
|
|
||
| fn bind_transport(&self, io: T) -> Self::BindTransport { | ||
| Ok(io.framed(IntCodec)) | ||
| } | ||
| } | ||
|
|
||
| impl<T: Io + 'static> ClientProto<T> for IntProto { | ||
| type Request = u64; | ||
| type Response = u64; | ||
| type Transport = Framed<T, IntCodec>; | ||
| type BindTransport = Result<Self::Transport, io::Error>; | ||
|
|
||
| fn bind_transport(&self, io: T) -> Self::BindTransport { | ||
| Ok(io.framed(IntCodec)) | ||
| } | ||
| } | ||
|
|
||
| // Now we implement a service we'd like to run on top of this protocol | ||
|
|
||
| pub struct Doubler; | ||
|
|
||
| impl Service for Doubler { | ||
| type Request = u64; | ||
| type Response = u64; | ||
| type Error = io::Error; | ||
| type Future = BoxFuture<u64, io::Error>; | ||
|
|
||
| fn call(&self, req: u64) -> Self::Future { | ||
| // Just return the request, doubled | ||
| future::finished(req * 2).boxed() | ||
| } | ||
| } | ||
|
|
||
| // Finally, we can actually host this service locally! | ||
| fn main() { | ||
| use std::time; | ||
| let n = 100000; | ||
|
|
||
| let addr = "127.0.0.1:12345".parse().unwrap(); | ||
|
|
||
| let mut core = Core::new().unwrap(); | ||
| let handle = core.handle(); | ||
|
|
||
| // start server | ||
| // thread::spawn(move || TcpServer::new(IntProto, addr).serve(|| Ok(Doubler))); | ||
| let listener = match addr { | ||
| SocketAddr::V4(_) => net2::TcpBuilder::new_v4().unwrap(), | ||
| SocketAddr::V6(_) => net2::TcpBuilder::new_v6().unwrap(), | ||
| }; | ||
| listener.reuse_address(true).unwrap(); | ||
| listener.bind(addr).unwrap(); | ||
| let server = listener.listen(1024) | ||
| .and_then(|l| TcpListener::from_listener(l, &addr, &handle)) | ||
| .unwrap() | ||
| .incoming() | ||
| .for_each(move |(socket, _)| { | ||
| IntProto.bind_server(&handle, socket, Doubler); | ||
| Ok(()) | ||
| }) | ||
| .map_err(|_| ()); | ||
|
|
||
| core.handle().spawn(server); | ||
|
|
||
| // connect with client | ||
| let handle = core.handle(); | ||
| let client = core.run(TcpClient::new(IntProto).connect(&addr, &handle)).unwrap(); | ||
|
|
||
| // benchmark | ||
| let start = time::Instant::now(); | ||
| for _ in 0..n { | ||
| core.run(client.call(1)).unwrap(); | ||
| } | ||
|
|
||
| println!("tokio-proto-pipeline {:.0}µs/call", | ||
| dur_to_ns!(start.elapsed()) as f64 / n as f64 / 1000.0); | ||
| } |