rdp: quit when dbus service is gone

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>

qemu-display/src/display.rs

@@ -209,6 +209,10 @@ impl<'d> Display<'d> {
         .await
     }
 
+    pub fn inner_proxy(&self) -> &zbus::Proxy<'d> {
+        self.inner.proxy.inner()
+    }
+
     pub async fn receive_owner_changed(&self) -> Result<OwnerChangedStream<'_>> {
         Ok(self.inner.proxy.inner().receive_owner_changed().await?)
     }

qemu-rdp/Cargo.toml

@@ -25,3 +25,4 @@ ironrdp = { git = "https://github.com/Devolutions/IronRDP", features = [
     "displaycontrol",
     "rdpsnd"
 ] }
+futures-util = "0.3"

qemu-rdp/src/server/mod.rs

@@ -4,7 +4,10 @@ mod input;
 mod sound;
 
 use anyhow::{anyhow, Context, Error};
-use ironrdp::server::tokio_rustls::{rustls, TlsAcceptor};
+use ironrdp::server::{
+    tokio_rustls::{rustls, TlsAcceptor},
+    ServerEvent,
+};
 
 use qemu_display::{zbus, Display};
 use rustls_pemfile::{certs, pkcs8_private_keys};
@@ -61,6 +64,16 @@ impl Server {
             .with_sound_factory(sound.map(|h| Box::new(h) as _))
             .build();
 
+        let ev = server.event_sender().clone();
+        let proxy = dbus_display.inner_proxy().clone();
+        tokio::spawn(async move {
+            use futures_util::StreamExt;
+
+            let mut owner_changed = proxy.receive_owner_changed().await.unwrap();
+            let _ = owner_changed.next().await;
+            ev.send(ServerEvent::Quit("org.qemu is gone".to_owned()))
+                .unwrap();
+        });
         server.run().await
     }
 }