cosmic-session/src/main.rs

85 lines
2.4 KiB
Rust

// SPDX-License-Identifier: GPL-3.0-only
#[macro_use]
extern crate tracing;
mod comp;
mod generic;
mod process;
mod systemd;
use async_signals::Signals;
use color_eyre::{eyre::WrapErr, Result};
use futures_util::StreamExt;
use tokio::sync::{mpsc, oneshot};
use tokio_util::sync::CancellationToken;
use tracing::metadata::LevelFilter;
use tracing_subscriber::{fmt, prelude::*, EnvFilter};
#[tokio::main(flavor = "current_thread")]
async fn main() -> Result<()> {
color_eyre::install().wrap_err("failed to install color_eyre error handler")?;
tracing_subscriber::registry()
.with(tracing_journald::layer().wrap_err("failed to connect to journald")?)
.with(fmt::layer())
.with(
EnvFilter::builder()
.with_default_directive(LevelFilter::INFO.into())
.from_env_lossy(),
)
.try_init()
.wrap_err("failed to initialize logger")?;
info!("Starting cosmic-session");
let token = CancellationToken::new();
let (socket_tx, socket_rx) = mpsc::unbounded_channel();
let (env_tx, env_rx) = oneshot::channel();
if let Err(err) = comp::run_compositor(token.child_token(), socket_rx, env_tx) {
error!("compositor errored: {:?}", err);
}
systemd::start_systemd_target()
.await
.wrap_err("failed to start systemd target")?;
let env_vars = env_rx
.await
.expect("failed to receive environmental variables")
.into_iter()
.collect::<Vec<_>>();
info!("got environmental variables: {:?}", env_vars);
let mut sockets = Vec::with_capacity(2);
generic::run_executable(
token.child_token(),
info_span!(parent: None, "cosmic-panel"),
"cosmic-panel",
vec!["testing-panel".into()],
comp::create_privileged_socket(&mut sockets, &env_vars)
.wrap_err("failed to create panel socket")?,
);
generic::run_executable(
token.child_token(),
info_span!(parent: None, "cosmic-panel dock"),
"cosmic-panel",
vec!["testing-dock".into()],
comp::create_privileged_socket(&mut sockets, &env_vars)
.wrap_err("failed to create dock socket")?,
);
socket_tx.send(sockets).unwrap();
let mut signals = Signals::new(vec![libc::SIGTERM, libc::SIGINT]).unwrap();
while let Some(signal) = signals.next().await {
match signal {
libc::SIGTERM | libc::SIGINT => {
info!("received request to terminate");
token.cancel();
tokio::time::sleep(std::time::Duration::from_secs(2)).await;
break;
}
_ => unreachable!("received unhandled signal {}", signal),
}
}
Ok(())
}