hyper/client/
service.rs

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;
8use std::pin::Pin;
9use std::task::{Context, Poll};
10
11use tracing::debug;
12
13#[cfg_attr(feature = "deprecated", allow(deprecated))]
14use super::conn::{Builder, SendRequest};
15use crate::{
16    body::HttpBody,
17    service::{MakeConnection, Service},
18};
19
20/// Creates a connection via `SendRequest`.
21///
22/// This accepts a `hyper::client::conn::Builder` and provides
23/// a `MakeService` implementation to create connections from some
24/// target `T`.
25#[derive(Debug)]
26pub struct Connect<C, B, T> {
27    inner: C,
28    #[cfg_attr(feature = "deprecated", allow(deprecated))]
29    builder: Builder,
30    _pd: PhantomData<fn(T, B)>,
31}
32
33impl<C, B, T> Connect<C, B, T> {
34    /// Create a new `Connect` with some inner connector `C` and a connection
35    /// builder.
36    #[cfg_attr(feature = "deprecated", allow(deprecated))]
37    pub fn new(inner: C, builder: Builder) -> Self {
38        Self {
39            inner,
40            builder,
41            _pd: PhantomData,
42        }
43    }
44}
45
46impl<C, B, T> Service<T> for Connect<C, B, T>
47where
48    C: MakeConnection<T>,
49    C::Connection: Unpin + Send + 'static,
50    C::Future: Send + 'static,
51    C::Error: Into<Box<dyn StdError + Send + Sync>> + Send,
52    B: HttpBody + Unpin + Send + 'static,
53    B::Data: Send + Unpin,
54    B::Error: Into<Box<dyn StdError + Send + Sync>>,
55{
56    #[cfg_attr(feature = "deprecated", allow(deprecated))]
57    type Response = SendRequest<B>;
58    type Error = crate::Error;
59    type Future =
60        Pin<Box<dyn Future<Output = Result<Self::Response, Self::Error>> + Send + 'static>>;
61
62    fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
63        self.inner
64            .poll_ready(cx)
65            .map_err(|e| crate::Error::new(crate::error::Kind::Connect).with(e.into()))
66    }
67
68    fn call(&mut self, req: T) -> Self::Future {
69        let builder = self.builder.clone();
70        let io = self.inner.make_connection(req);
71
72        let fut = async move {
73            match io.await {
74                Ok(io) => match builder.handshake(io).await {
75                    Ok((sr, conn)) => {
76                        #[cfg_attr(feature = "deprecated", allow(deprecated))]
77                        builder.exec.execute(async move {
78                            if let Err(e) = conn.await {
79                                debug!("connection error: {:?}", e);
80                            }
81                        });
82                        Ok(sr)
83                    }
84                    Err(e) => Err(e),
85                },
86                Err(e) => {
87                    let err = crate::Error::new(crate::error::Kind::Connect).with(e.into());
88                    Err(err)
89                }
90            }
91        };
92
93        Box::pin(fut)
94    }
95}
hyper/client/service.rs

hyper/client/
service.rs
