Enable unused_async clippy lint

Cargo.toml

@@ -929,7 +929,6 @@ single_match_else = { level = "allow", priority = 1 }
 struct_excessive_bools = { level = "allow", priority = 1 }
 struct_field_names = { level = "allow", priority = 1 }
 unnecessary_wraps = { level = "allow", priority = 1 }
-unused_async = { level = "allow", priority = 1 }
 
 ###################
 perf = { level = "warn", priority = -1 }

src/api/client/register.rs

@@ -266,7 +266,6 @@ pub(crate) async fn register_route(
 	let skip_auth = if !services
 		.globals
 		.get_registration_tokens()
-		.await
 		.is_empty()
 		&& !is_guest
 	{
@@ -425,7 +424,7 @@ pub(crate) async fn check_registration_token_validity(
 	State(services): State<crate::State>,
 	body: Ruma<check_registration_token_validity::v1::Request>,
 ) -> Result<check_registration_token_validity::v1::Response> {
-	let tokens = services.globals.get_registration_tokens().await;
+	let tokens = services.globals.get_registration_tokens();
 
 	if tokens.is_empty() {
 		return Err!(Request(Forbidden("Server does not allow token registration")));

src/api/client/session/appservice.rs

@@ -10,7 +10,7 @@ use tuwunel_service::Services;
 
 use crate::Ruma;
 
-pub(super) async fn handle_login(
+pub(super) fn handle_login(
 	services: &Services,
 	body: &Ruma<Request>,
 	info: &ApplicationService,

src/api/client/session/mod.rs

@@ -115,7 +115,7 @@ pub(crate) async fn login_route(
 		| LoginInfo::Token(info) => token::handle_login(&services, &body, info).await?,
 		| LoginInfo::Jwt(info) => jwt::handle_login(&services, &body, info).await?,
 		| LoginInfo::ApplicationService(info) =>
-			appservice::handle_login(&services, &body, info).await?,
+			appservice::handle_login(&services, &body, info)?,
 		| _ => {
 			return Err!(Request(Unknown(debug_warn!(
 				?body.login_info,

src/api/client/to_device.rs

@@ -1,7 +1,6 @@
 use std::collections::BTreeMap;
 
 use axum::extract::State;
-use futures::StreamExt;
 use ruma::{
 	api::{
 		client::{error::ErrorKind, to_device::send_event_to_device},
@@ -9,7 +8,7 @@ use ruma::{
 	},
 	to_device::DeviceIdOrAllDevices,
 };
-use tuwunel_core::{Error, Result};
+use tuwunel_core::{Error, Result, utils::ReadyExt};
 use tuwunel_service::sending::EduBuf;
 
 use crate::Ruma;
@@ -69,31 +68,27 @@ pub(crate) async fn send_event_to_device_route(
 
 			match target_device_id_maybe {
 				| DeviceIdOrAllDevices::DeviceId(target_device_id) => {
-					services
-						.users
-						.add_to_device_event(
-							sender_user,
-							target_user_id,
-							target_device_id,
-							event_type,
-							event,
-						)
-						.await;
+					services.users.add_to_device_event(
+						sender_user,
+						target_user_id,
+						target_device_id,
+						event_type,
+						&event,
+					);
 				},
 
 				| DeviceIdOrAllDevices::AllDevices => {
-					let (event_type, event) = (&event_type, &event);
 					services
 						.users
 						.all_device_ids(target_user_id)
-						.for_each(|target_device_id| {
+						.ready_for_each(|target_device_id| {
 							services.users.add_to_device_event(
 								sender_user,
 								target_user_id,
 								target_device_id,
 								event_type,
-								event.clone(),
-							)
+								&event,
+							);
 						})
 						.await;
 				},

src/api/server/send.rs

@@ -538,24 +538,27 @@ async fn handle_edu_direct_to_device_event(
 ) {
 	match target_device_id_maybe {
 		| DeviceIdOrAllDevices::DeviceId(ref target_device_id) => {
-			services
-				.users
-				.add_to_device_event(sender, target_user_id, target_device_id, ev_type, event)
-				.await;
+			services.users.add_to_device_event(
+				sender,
+				target_user_id,
+				target_device_id,
+				ev_type,
+				&event,
+			);
 		},
 
 		| DeviceIdOrAllDevices::AllDevices => {
 			services
 				.users
 				.all_device_ids(target_user_id)
-				.for_each(|target_device_id| {
+				.ready_for_each(|target_device_id| {
 					services.users.add_to_device_event(
 						sender,
 						target_user_id,
 						target_device_id,
 						ev_type,
-						event.clone(),
-					)
+						&event,
+					);
 				})
 				.await;
 		},

src/macros/admin.rs

@@ -10,11 +10,12 @@ use crate::{
 };
 
 pub(super) fn command(mut item: ItemFn, _args: &[Meta]) -> Result<TokenStream> {
-	let attr: Attribute = parse_quote! {
+	let attr: Vec<Attribute> = parse_quote! {
 		#[tuwunel_macros::implement(crate::Context, params = "<'_>")]
+		#[allow(clippy::unused_async)]
 	};
 
-	item.attrs.push(attr);
+	item.attrs.extend(attr);
 	Ok(item.into_token_stream().into())
 }
 

src/router/run.rs

@@ -4,7 +4,6 @@ use std::{
 };
 
 use axum_server::Handle as ServerHandle;
-use futures::FutureExt;
 use tokio::{
 	sync::broadcast::{self, Sender},
 	task::JoinHandle,
@@ -106,14 +105,11 @@ pub(crate) async fn stop(services: Arc<Services>) -> Result {
 
 #[tracing::instrument(skip_all)]
 async fn signal(server: Arc<Server>, tx: Sender<()>, handle: axum_server::Handle) {
-	server
-		.clone()
-		.until_shutdown()
-		.then(move |()| handle_shutdown(server, tx, handle))
-		.await;
+	server.until_shutdown().await;
+	handle_shutdown(&server, &tx, &handle);
 }
 
-async fn handle_shutdown(server: Arc<Server>, tx: Sender<()>, handle: axum_server::Handle) {
+fn handle_shutdown(server: &Arc<Server>, tx: &Sender<()>, handle: &axum_server::Handle) {
 	if let Err(e) = tx.send(()) {
 		error!("failed sending shutdown transaction to channel: {e}");
 	}

src/service/admin/console.rs

@@ -38,16 +38,16 @@ impl Console {
 		})
 	}
 
-	pub(super) async fn handle_signal(self: &Arc<Self>, sig: &'static str) {
+	pub(super) fn handle_signal(self: &Arc<Self>, sig: &'static str) {
 		if !self.server.running() {
 			self.interrupt();
 		} else if sig == "SIGINT" {
 			self.interrupt_command();
-			self.start().await;
+			self.start();
 		}
 	}
 
-	pub async fn start(self: &Arc<Self>) {
+	pub fn start(self: &Arc<Self>) {
 		let mut worker_join = self.worker_join.lock().expect("locked");
 		if worker_join.is_none() {
 			let self_ = Arc::clone(self);

src/service/admin/execute.rs

@@ -6,6 +6,7 @@ pub(super) const SIGNAL: &str = "SIGUSR2";
 
 /// Possibly spawn the terminal console at startup if configured.
 #[implement(super::Service)]
+#[allow(clippy::unused_async)]
 pub(super) async fn console_auto_start(&self) {
 	#[cfg(feature = "console")]
 	if self
@@ -16,12 +17,13 @@ pub(super) async fn console_auto_start(&self) {
 	{
 		// Allow more of the startup sequence to execute before spawning
 		tokio::task::yield_now().await;
-		self.console.start().await;
+		self.console.start();
 	}
 }
 
 /// Shutdown the console when the admin worker terminates.
 #[implement(super::Service)]
+#[allow(clippy::unused_async)]
 pub(super) async fn console_auto_stop(&self) {
 	#[cfg(feature = "console")]
 	self.console.close().await;

src/service/admin/mod.rs

@@ -194,7 +194,7 @@ impl Service {
 		}
 
 		#[cfg(feature = "console")]
-		self.console.handle_signal(sig).await;
+		self.console.handle_signal(sig);
 	}
 
 	async fn handle_command(&self, command: CommandInput) {

src/service/globals/mod.rs

@@ -106,7 +106,7 @@ impl Service {
 	#[must_use]
 	pub fn is_read_only(&self) -> bool { self.db.db.is_read_only() }
 
-	pub async fn get_registration_tokens(&self) -> HashSet<String> {
+	pub fn get_registration_tokens(&self) -> HashSet<String> {
 		let mut tokens = HashSet::new();
 		if let Some(file) = &self
 			.server

src/service/manager.rs

@@ -57,7 +57,7 @@ impl Manager {
 
 		debug!("Starting service workers...");
 		for service in self.services.services() {
-			self.start_worker(&mut workers, &service).await?;
+			self.start_worker(&mut workers, &service)?;
 		}
 
 		Ok(())
@@ -78,7 +78,7 @@ impl Manager {
 			tokio::select! {
 				result = workers.join_next() => match result {
 					Some(Ok(result)) => self.handle_result(&mut workers, result).await?,
-					Some(Err(error)) => self.handle_abort(&mut workers, Error::from(error)).await?,
+					Some(Err(error)) => self.handle_abort(&mut workers, &Error::from(error))?,
 					None => break,
 				}
 			}
@@ -88,7 +88,8 @@ impl Manager {
 		Ok(())
 	}
 
-	async fn handle_abort(&self, _workers: &mut WorkersLocked<'_>, error: Error) -> Result {
+	#[allow(clippy::unused_self)]
+	fn handle_abort(&self, _workers: &mut WorkersLocked<'_>, error: &Error) -> Result {
 		// not supported until service can be associated with abort
 		unimplemented!("unexpected worker task abort {error:?}");
 	}
@@ -100,12 +101,13 @@ impl Manager {
 	) -> Result {
 		let (service, result) = result;
 		match result {
-			| Ok(()) => self.handle_finished(workers, &service).await,
+			| Ok(()) => self.handle_finished(workers, &service),
 			| Err(error) => self.handle_error(workers, &service, error).await,
 		}
 	}
 
-	async fn handle_finished(
+	#[allow(clippy::unused_self)]
+	fn handle_finished(
 		&self,
 		_workers: &mut WorkersLocked<'_>,
 		service: &Arc<dyn Service>,
@@ -136,11 +138,11 @@ impl Manager {
 		warn!("service {name:?} worker restarting after {} delay", time::pretty(delay));
 		sleep(delay).await;
 
-		self.start_worker(workers, service).await
+		self.start_worker(workers, service)
 	}
 
 	/// Start the worker in a task for the service.
-	async fn start_worker(
+	fn start_worker(
 		&self,
 		workers: &mut WorkersLocked<'_>,
 		service: &Arc<dyn Service>,

src/service/media/preview.rs

@@ -49,13 +49,13 @@ pub struct UrlPreviewData {
 }
 
 #[implement(Service)]
-pub async fn remove_url_preview(&self, url: &str) -> Result {
+pub fn remove_url_preview(&self, url: &str) -> Result {
 	// TODO: also remove the downloaded image
 	self.db.remove_url_preview(url)
 }
 
 #[implement(Service)]
-pub async fn set_url_preview(&self, url: &str, data: &UrlPreviewData) -> Result {
+pub fn set_url_preview(&self, url: &str, data: &UrlPreviewData) -> Result {
 	let now = SystemTime::now()
 		.duration_since(SystemTime::UNIX_EPOCH)
 		.expect("valid system time");
@@ -117,7 +117,7 @@ async fn request_url_preview(&self, url: &Url) -> Result<UrlPreviewData> {
 		| _ => return Err!(Request(Unknown("Unsupported Content-Type"))),
 	};
 
-	self.set_url_preview(url.as_str(), &data).await?;
+	self.set_url_preview(url.as_str(), &data)?;
 
 	Ok(data)
 }
@@ -165,6 +165,7 @@ pub async fn download_image(&self, url: &str) -> Result<UrlPreviewData> {
 
 #[cfg(not(feature = "url_preview"))]
 #[implement(Service)]
+#[allow(clippy::unused_async)]
 pub async fn download_image(&self, _url: &str) -> Result<UrlPreviewData> {
 	Err!(FeatureDisabled("url_preview"))
 }
@@ -214,6 +215,7 @@ async fn download_html(&self, url: &str) -> Result<UrlPreviewData> {
 
 #[cfg(not(feature = "url_preview"))]
 #[implement(Service)]
+#[allow(clippy::unused_async)]
 async fn download_html(&self, _url: &str) -> Result<UrlPreviewData> {
 	Err!(FeatureDisabled("url_preview"))
 }

src/service/resolver/dns.rs

@@ -198,7 +198,7 @@ async fn hooked_resolve(
 	name: Name,
 ) -> Result<Addrs, Box<dyn std::error::Error + Send + Sync>> {
 	match cache.get_override(name.as_str()).await {
-		| Ok(cached) if cached.valid() => cached_to_reqwest(cached).await,
+		| Ok(cached) if cached.valid() => cached_to_reqwest(cached),
 		| Ok(CachedOverride { overriding, .. }) if overriding.is_some() =>
 			resolve_to_reqwest(
 				server,
@@ -241,7 +241,7 @@ async fn resolve_to_reqwest(
 	}
 }
 
-async fn cached_to_reqwest(cached: CachedOverride) -> ResolvingResult {
+fn cached_to_reqwest(cached: CachedOverride) -> ResolvingResult {
 	let addrs = cached
 		.ips
 		.into_iter()

src/service/rooms/delete/mod.rs

@@ -172,7 +172,6 @@ impl Service {
 		self.services
 			.state
 			.delete_room_shortstatehash(room_id, &state_lock)
-			.await
 			.log_err()
 			.ok();
 

src/service/rooms/state/mod.rs

@@ -526,7 +526,7 @@ pub async fn get_shortstatehash(&self, shorteventid: ShortEventId) -> Result<Sho
 }
 
 #[implement(Service)]
-pub(super) async fn delete_room_shortstatehash(
+pub(super) fn delete_room_shortstatehash(
 	&self,
 	room_id: &RoomId,
 	_mutex_lock: &Guard<OwnedRoomId, ()>,

src/service/uiaa/mod.rs

@@ -149,11 +149,7 @@ pub async fn try_auth(
 			uiaainfo.completed.push(AuthType::Password);
 		},
 		| AuthData::RegistrationToken(t) => {
-			let tokens = self
-				.services
-				.globals
-				.get_registration_tokens()
-				.await;
+			let tokens = self.services.globals.get_registration_tokens();
 			if tokens.contains(t.token.trim()) {
 				uiaainfo
 					.completed

src/service/users/device.rs

@@ -300,13 +300,13 @@ pub fn generate_refresh_token() -> String {
 }
 
 #[implement(super::Service)]
-pub async fn add_to_device_event(
+pub fn add_to_device_event(
 	&self,
 	sender: &UserId,
 	target_user_id: &UserId,
 	target_device_id: &DeviceId,
 	event_type: &str,
-	content: serde_json::Value,
+	content: &serde_json::Value,
 ) {
 	let count = self.services.globals.next_count();
 

src/service/users/mod.rs

@@ -381,11 +381,13 @@ impl Service {
 	}
 
 	#[cfg(not(feature = "ldap"))]
+	#[allow(clippy::unused_async)]
 	pub async fn search_ldap(&self, _user_id: &UserId) -> Result<Vec<(String, bool)>> {
 		Err!(FeatureDisabled("ldap"))
 	}
 
 	#[cfg(not(feature = "ldap"))]
+	#[allow(clippy::unused_async)]
 	pub async fn auth_ldap(&self, _user_dn: &str, _password: &str) -> Result {
 		Err!(FeatureDisabled("ldap"))
 	}