feat: add wait-for-idle

Signed-off-by: sisungo <[email protected]>

libs/ipc/src/client.rs

@@ -60,4 +60,8 @@ impl Client {
     pub fn list_devices(&mut self, when: When) -> Result<Vec<String>, Error> {
         self.invoke(&Request::ListDevices(when))
     }
+
+    pub fn wait_for_idle(&mut self) -> Result<(), Error> {
+        self.invoke(&Request::WaitForIdle)
+    }
 }

libs/ipc/src/repr.rs

@@ -12,6 +12,9 @@ pub enum Request {
 
     #[serde(rename = "/org.semilabs.os/LxDeviced/ListDevices@LXDEVICED_0.1.0")]
     ListDevices(When),
+
+    #[serde(rename = "/org.semilabs.os/LxDeviced/WaitForIdle@LXDEVICED_0.1.0")]
+    WaitForIdle,
 }
 
 pub fn ser_reply<T: Serialize>(result: Result<T, Error>) -> String {