Files
tokio/tokio-signal/examples/sighup-example.rs
T
David Kellum c9532e49d7 v0.1.x lint fix, MSRV 1.28.0 updates (#1451)
* use dyn Trait syntax where appropriate

recent rust nightly started warning that not using `dyn` was
deprecated. This requires MSRV 1.27.0+.

* rustfmt fallout from dyn additions

* stop explicit allow of rust_2018_idioms

* more dyn Trait syntax

* drop tokio-macros from 0.1.x workspace

Since tokio-macros specifies an edition=2018, we would otherwise
require MSRV 1.31.0 to build/test it. And tokio-macros isn't used with
tokio 0.1.x.

* reactor: narrow tokio-io-pool dev dep to 0.1.4

Since 0.1.5-6 is now a edition=2018 crate, which has effective MSRV
1.31.0.

* narrow tempfile dev-dep to avoid MSRV bump

tempfile 3.1.0 pulls in rand 0.7.0 and is MSRV 1.32.0

* narrow flate2 dev-dep to avoid MSRV bump

flate2 1.0.10-11 have MSRV 1.34.0.

github refs: alexcrichton/flate2-rs#207

* fs: drop deprecated tempdir crate use in tests

In particular because it pulls in old rand duplicates. Replace use
with tempfile::tempdir() which has been available since tempfile
3.0.0.

backport-of: #1312

* increase CI MSRV to 1.28.0
2019-08-15 18:28:56 -04:00

54 lines
1.6 KiB
Rust

extern crate futures;
extern crate tokio;
extern crate tokio_signal;
// A trick to not fail build on non-unix platforms when using unix-specific features.
#[cfg(unix)]
mod platform {
use futures::{Future, Stream};
use tokio_signal::unix::{Signal, SIGHUP};
pub fn main() -> Result<(), Box<dyn std::error::Error>> {
// on Unix, we can listen to whatever signal we want, in this case: SIGHUP
let stream = Signal::new(SIGHUP).flatten_stream();
println!("Waiting for SIGHUPS (Ctrl+C to quit)");
println!(
" TIP: use `pkill -sighup sighup-example` from a second terminal \
to send a SIGHUP to all processes named 'sighup-example' \
(i.e. this binary)"
);
// for_each is a powerful primitive provided by the Futures crate
// it turns a Stream into a Future that completes after all stream-items
// have been completed.
let future = stream.for_each(|the_signal| {
println!(
"*Got signal {:#x}* I should probably reload my config \
or something",
the_signal
);
Ok(())
});
// Up until now, we haven't really DONE anything, just prepared
// now it's time to actually schedule, and thus execute, the stream
// on our event loop, and loop forever
::tokio::runtime::current_thread::block_on_all(future)?;
Ok(())
}
}
#[cfg(not(unix))]
mod platform {
pub fn main() -> Result<(), Box<::std::error::Error>> {
Ok(())
}
}
fn main() -> Result<(), Box<dyn std::error::Error>> {
platform::main()
}