amaru 0.1.2

A Cardano blockchain node implementation
Documentation 
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// Copyright 2024 PRAGMA
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use tokio_util::sync::CancellationToken;
#[cfg(windows)]
use tracing::trace;
#[cfg(unix)]
use tracing::{trace, warn};

#[inline]
#[cfg(unix)]
#[expect(clippy::unwrap_used)]
async fn wait_for_exit_signal() {
    let mut sigterm = tokio::signal::unix::signal(tokio::signal::unix::SignalKind::terminate()).unwrap();

    tokio::select! {
        _ = tokio::signal::ctrl_c() => {
            warn!("SIGINT detected");
        }
        _ = sigterm.recv() => {
            warn!("SIGTERM detected");
        }
    };
}

#[inline]
#[cfg(windows)]
async fn wait_for_exit_signal() {
    tokio::signal::ctrl_c().await.unwrap()
}

pub fn hook_exit_token() -> CancellationToken {
    let cancel = CancellationToken::new();

    let cancel2 = cancel.clone();
    tokio::spawn(async move {
        wait_for_exit_signal().await;
        trace!("notifying exit");
        cancel2.cancel();
    });

    cancel
}