hyper/client/
service.rs

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1//! Utilities used to interact with the Tower ecosystem.
2//!
3//! This module provides `Connect` which hook-ins into the Tower ecosystem.
4
5use std::error::Error as StdError;
6use std::future::Future;
7use std::marker::PhantomData;
8
9use tracing::debug;
10
11use super::conn::{Builder, SendRequest};
12use crate::{
13    body::HttpBody,
14    common::{task, Pin, Poll},
15    service::{MakeConnection, Service},
16};
17
18/// Creates a connection via `SendRequest`.
19///
20/// This accepts a `hyper::client::conn::Builder` and provides
21/// a `MakeService` implementation to create connections from some
22/// target `T`.
23#[derive(Debug)]
24pub struct Connect<C, B, T> {
25    inner: C,
26    builder: Builder,
27    _pd: PhantomData<fn(T, B)>,
28}
29
30impl<C, B, T> Connect<C, B, T> {
31    /// Create a new `Connect` with some inner connector `C` and a connection
32    /// builder.
33    pub fn new(inner: C, builder: Builder) -> Self {
34        Self {
35            inner,
36            builder,
37            _pd: PhantomData,
38        }
39    }
40}
41
42impl<C, B, T> Service<T> for Connect<C, B, T>
43where
44    C: MakeConnection<T>,
45    C::Connection: Unpin + Send + 'static,
46    C::Future: Send + 'static,
47    C::Error: Into<Box<dyn StdError + Send + Sync>> + Send,
48    B: HttpBody + Unpin + Send + 'static,
49    B::Data: Send + Unpin,
50    B::Error: Into<Box<dyn StdError + Send + Sync>>,
51{
52    type Response = SendRequest<B>;
53    type Error = crate::Error;
54    type Future =
55        Pin<Box<dyn Future<Output = Result<Self::Response, Self::Error>> + Send + 'static>>;
56
57    fn poll_ready(&mut self, cx: &mut task::Context<'_>) -> Poll<Result<(), Self::Error>> {
58        self.inner
59            .poll_ready(cx)
60            .map_err(|e| crate::Error::new(crate::error::Kind::Connect).with(e.into()))
61    }
62
63    fn call(&mut self, req: T) -> Self::Future {
64        let builder = self.builder.clone();
65        let io = self.inner.make_connection(req);
66
67        let fut = async move {
68            match io.await {
69                Ok(io) => match builder.handshake(io).await {
70                    Ok((sr, conn)) => {
71                        builder.exec.execute(async move {
72                            if let Err(e) = conn.await {
73                                debug!("connection error: {:?}", e);
74                            }
75                        });
76                        Ok(sr)
77                    }
78                    Err(e) => Err(e),
79                },
80                Err(e) => {
81                    let err = crate::Error::new(crate::error::Kind::Connect).with(e.into());
82                    Err(err)
83                }
84            }
85        };
86
87        Box::pin(fut)
88    }
89}
hyper/client/service.rs

hyper/client/
service.rs
