mirror of
https://github.com/tokio-rs/tokio.git
synced 2026-08-23 00:00:10 +02:00
Steven Fackler
4f6395b31c
The runtime is inherently multi-threaded, so it's going to have to deal with synchronization when submitting new tasks anyway. This allows a runtime to be shared by multiple threads more easily when e.g. building a blocking facade over a tokio-based API.
44 lines
1.2 KiB
Rust
44 lines
1.2 KiB
Rust
#![deny(warnings, rust_2018_idioms)]
|
|
|
|
use futures::Future;
|
|
use native_tls::TlsConnector;
|
|
use std::io;
|
|
use std::net::ToSocketAddrs;
|
|
use tokio::net::TcpStream;
|
|
use tokio::runtime::Runtime;
|
|
use tokio_io;
|
|
use tokio_tls;
|
|
|
|
fn main() -> Result<(), Box<dyn std::error::Error>> {
|
|
let runtime = Runtime::new()?;
|
|
let addr = "www.rust-lang.org:443"
|
|
.to_socket_addrs()?
|
|
.next()
|
|
.ok_or("failed to resolve www.rust-lang.org")?;
|
|
|
|
let socket = TcpStream::connect(&addr);
|
|
let cx = TlsConnector::builder().build()?;
|
|
let cx = tokio_tls::TlsConnector::from(cx);
|
|
|
|
let tls_handshake = socket.and_then(move |socket| {
|
|
cx.connect("www.rust-lang.org", socket)
|
|
.map_err(|e| io::Error::new(io::ErrorKind::Other, e))
|
|
});
|
|
let request = tls_handshake.and_then(|socket| {
|
|
tokio_io::io::write_all(
|
|
socket,
|
|
"\
|
|
GET / HTTP/1.0\r\n\
|
|
Host: www.rust-lang.org\r\n\
|
|
\r\n\
|
|
"
|
|
.as_bytes(),
|
|
)
|
|
});
|
|
let response = request.and_then(|(socket, _)| tokio_io::io::read_to_end(socket, Vec::new()));
|
|
|
|
let (_, data) = runtime.block_on(response)?;
|
|
println!("{}", String::from_utf8_lossy(&data));
|
|
Ok(())
|
|
}
|