Files
wattbar/src/upower.rs

58 lines
1.4 KiB
Rust

use crate::PowerState;
use std::sync::mpsc::SyncSender;
use std::sync::{
mpsc::{Receiver, Sender},
Arc, RwLock,
};
use upower_dbus;
use calloop::channel::Sender as CalloopSender;
use zbus;
pub struct PowerReporter {
pub sender: CalloopSender<()>,
pub status: Arc<RwLock<Option<PowerState>>>,
}
pub struct PowerReceiver {
receiver: Receiver<()>,
status: Arc<RwLock<Option<PowerState>>>,
}
macro_rules! catch {
($expr:block) => {
(|| $expr)()
};
}
pub fn spawn_upower(reporter: PowerReporter) -> anyhow::Result<()> {
let (start_send, start_receive) = std::sync::mpsc::sync_channel(1);
std::thread::spawn(move || {
let failure = upower_run(reporter, &start_send);
if failure.is_err() {
start_send.send(failure);
}
});
start_receive.recv()?
}
fn upower_run(
reporter: PowerReporter,
start_send: &SyncSender<anyhow::Result<()>>,
) -> anyhow::Result<()> {
let dbus = zbus::blocking::Connection::system()?;
let display_device_path = upower_dbus::UPowerProxyBlocking::new(&dbus)?.get_display_device()?;
let display_proxy = zbus::blocking::fdo::PropertiesProxy::builder(&dbus)
.destination("org.freedesktop.UPower")?
.path(display_device_path)?
.cache_properties(zbus::CacheProperties::No)
.build()?;
start_send.send(Ok(())).unwrap();
// TODO: actually watch for events
Ok(())
}