remove arcs

crates/lavina-core/src/clustering.rs

@@ -1,11 +1,11 @@
+use std::collections::HashMap;
+use std::net::SocketAddr;
+
 use anyhow::{anyhow, Result};
 use reqwest::Client;
 use reqwest_middleware::{ClientBuilder, ClientWithMiddleware};
 use reqwest_tracing::{DefaultSpanBackend, TracingMiddleware};
 use serde::{Deserialize, Serialize};
-use std::collections::HashMap;
-use std::net::SocketAddr;
-use std::sync::Arc;
 
 pub mod broadcast;
 pub mod room;
@@ -27,19 +27,15 @@ pub struct ClusterMetadata {
     pub rooms: HashMap<String, u32>,
 }
 
-#[derive(Clone)]
 pub struct LavinaClient {
-    addresses: Arc<Addresses>,
+    addresses: Addresses,
     client: ClientWithMiddleware,
 }
 
 impl LavinaClient {
     pub fn new(addresses: Addresses) -> Self {
         let client = ClientBuilder::new(Client::new()).with(TracingMiddleware::<DefaultSpanBackend>::new()).build();
-        Self {
-            addresses: Arc::new(addresses),
-            client,
-        }
+        Self { addresses, client }
     }
 
     async fn send_request(&self, node_id: u32, path: &str, req: impl Serialize) -> Result<()> {

crates/lavina-core/src/clustering/broadcast.rs

@@ -1,5 +1,4 @@
 use std::collections::{HashMap, HashSet};
-use std::sync::Arc;
 
 use chrono::{DateTime, Utc};
 use tokio::sync::Mutex;
@@ -13,16 +12,13 @@ struct BroadcastingInner {
     subscriptions: HashMap<RoomId, HashSet<PlayerId>>,
 }
 
-impl Broadcasting {}
-
-#[derive(Clone)]
-pub struct Broadcasting(Arc<Mutex<BroadcastingInner>>);
+pub struct Broadcasting(Mutex<BroadcastingInner>);
 impl Broadcasting {
     pub fn new() -> Self {
         let inner = BroadcastingInner {
             subscriptions: HashMap::new(),
         };
-        Self(Arc::new(Mutex::new(inner)))
+        Self(Mutex::new(inner))
     }
 
     /// Broadcasts the given update to subscribed player actors on local node.

crates/lavina-core/src/dialog.rs

@@ -4,7 +4,6 @@
 //! There are no admins or other roles in dialogs, both participants have equal rights.
 
 use std::collections::HashMap;
-use std::sync::Arc;
 
 use chrono::{DateTime, Utc};
 use tokio::sync::RwLock as AsyncRwLock;
@@ -47,8 +46,7 @@ struct DialogRegistryInner {
     dialogs: HashMap<DialogId, AsyncRwLock<Dialog>>,
 }
 
-#[derive(Clone)]
-pub(crate) struct DialogRegistry(Arc<AsyncRwLock<DialogRegistryInner>>);
+pub(crate) struct DialogRegistry(AsyncRwLock<DialogRegistryInner>);
 
 impl DialogRegistry {
     pub async fn send_message(
@@ -129,20 +127,12 @@ impl DialogRegistry {
 
 impl DialogRegistry {
     pub fn new() -> DialogRegistry {
-        DialogRegistry(Arc::new(AsyncRwLock::new(DialogRegistryInner {
+        DialogRegistry(AsyncRwLock::new(DialogRegistryInner {
             dialogs: HashMap::new(),
-        })))
+        }))
     }
 
-    pub fn shutdown(self) -> Result<()> {
-        let res = match Arc::try_unwrap(self.0) {
-            Ok(e) => e,
-            Err(_) => return Err(fail("failed to acquire dialogs ownership on shutdown")),
-        };
-        let res = res.into_inner();
-        drop(res);
-        Ok(())
-    }
+    pub fn shutdown(self) {}
 }
 
 #[cfg(test)]

crates/lavina-core/src/lib.rs

@@ -1,4 +1,5 @@
 //! Domain definitions and implementation of common chat logic.
+use std::ops::Deref;
 use std::sync::Arc;
 
 use anyhow::Result;
@@ -24,26 +25,26 @@ mod table;
 
 #[derive(Clone)]
 pub struct LavinaCore {
-    services: Services,
+    services: Arc<Services>,
+}
+
+impl Deref for LavinaCore {
+    type Target = Services;
+
+    fn deref(&self) -> &Self::Target {
+        &self.services
+    }
 }
 
 impl LavinaCore {
     pub async fn connect_to_player(&self, player_id: &PlayerId) -> PlayerConnection {
-        self.services.players.connect_to_player(&self.services, player_id).await
-    }
-
-    pub fn rooms(&self) -> &RoomRegistry {
-        &self.services.rooms
+        self.services.players.connect_to_player(&self, player_id).await
     }
 
     pub async fn get_room(&self, room_id: &RoomId) -> Option<RoomHandle> {
         self.services.rooms.get_room(&self.services, room_id).await
     }
 
-    pub async fn get_or_create_room(&self, room_id: RoomId) -> Result<RoomHandle> {
-        self.services.rooms.get_or_create_room(&self.services, room_id).await
-    }
-
     pub async fn create_player(&self, player_id: &PlayerId) -> Result<()> {
         self.services.storage.create_user(player_id.as_inner()).await
     }
@@ -57,8 +58,7 @@ impl LavinaCore {
     }
 }
 
-#[derive(Clone)]
-pub(crate) struct Services {
+pub struct Services {
     pub(crate) players: PlayerRegistry,
     pub(crate) rooms: RoomRegistry,
     pub(crate) dialogs: DialogRegistry,
@@ -82,23 +82,31 @@ impl LavinaCore {
         let players = PlayerRegistry::empty(metrics)?;
 
         let services = Services {
-            players: players.clone(),
-            rooms: rooms.clone(),
-            dialogs: dialogs.clone(),
-            broadcasting: broadcasting.clone(),
+            players,
+            rooms,
+            dialogs,
+            broadcasting,
             client,
             storage,
             cluster_metadata: Arc::new(cluster_config.metadata),
         };
 
-        Ok(LavinaCore { services })
+        Ok(LavinaCore {
+            services: Arc::new(services),
+        })
     }
 
-    pub async fn shutdown(mut self) -> Storage {
-        let _ = self.services.players.shutdown_all().await;
-        let _ = self.services.players.shutdown();
-        let _ = self.services.dialogs.shutdown();
-        let _ = self.services.rooms.shutdown();
-        self.services.storage
+    pub async fn shutdown(self) -> Storage {
+        let _ = self.players.shutdown_all().await;
+        let services = match Arc::try_unwrap(self.services) {
+            Ok(e) => e,
+            Err(_) => {
+                panic!("failed to acquire services ownership on shutdown");
+            }
+        };
+        let _ = services.players.shutdown();
+        let _ = services.dialogs.shutdown();
+        let _ = services.rooms.shutdown();
+        services.storage
     }
 }

crates/lavina-core/src/player.rs

@@ -8,7 +8,6 @@
 //! A player actor is a serial handler of commands from a single player. It is preferable to run all per-player validations in the player actor,
 //! so that they don't overload the room actor.
 use std::collections::{HashMap, HashSet};
-use std::sync::Arc;
 
 use chrono::{DateTime, Utc};
 use prometheus::{IntGauge, Registry as MetricsRegistry};
@@ -21,7 +20,7 @@ use crate::clustering::room::*;
 use crate::prelude::*;
 use crate::room::{RoomHandle, RoomId, RoomInfo};
 use crate::table::{AnonTable, Key as AnonKey};
-use crate::Services;
+use crate::LavinaCore;
 
 /// Opaque player identifier. Cannot contain spaces, must be shorter than 32.
 #[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize)]
@@ -263,8 +262,7 @@ pub enum Updates {
 }
 
 /// Handle to a player registry — a shared data structure containing information about players.
-#[derive(Clone)]
-pub(crate) struct PlayerRegistry(Arc<RwLock<PlayerRegistryInner>>);
+pub(crate) struct PlayerRegistry(RwLock<PlayerRegistryInner>);
 impl PlayerRegistry {
     pub fn empty(metrics: &mut MetricsRegistry) -> Result<PlayerRegistry> {
         let metric_active_players = IntGauge::new("chat_players_active", "Number of alive player actors")?;
@@ -273,17 +271,12 @@ impl PlayerRegistry {
             players: HashMap::new(),
             metric_active_players,
         };
-        Ok(PlayerRegistry(Arc::new(RwLock::new(inner))))
+        Ok(PlayerRegistry(RwLock::new(inner)))
     }
 
-    pub fn shutdown(self) -> Result<()> {
-        let res = match Arc::try_unwrap(self.0) {
-            Ok(e) => e,
-            Err(_) => return Err(fail("failed to acquire players ownership on shutdown")),
-        };
-        let res = res.into_inner();
+    pub fn shutdown(self) {
+        let res = self.0.into_inner();
         drop(res);
-        Ok(())
     }
 
     #[tracing::instrument(skip(self), name = "PlayerRegistry::get_player")]
@@ -306,8 +299,8 @@ impl PlayerRegistry {
         }
     }
 
-    #[tracing::instrument(skip(self, services), name = "PlayerRegistry::get_or_launch_player")]
-    pub async fn get_or_launch_player(&self, services: &Services, id: &PlayerId) -> PlayerHandle {
+    #[tracing::instrument(skip(self, core), name = "PlayerRegistry::get_or_launch_player")]
+    pub async fn get_or_launch_player(&self, core: &LavinaCore, id: &PlayerId) -> PlayerHandle {
         let inner = self.0.read().await;
         if let Some((handle, _)) = inner.players.get(id) {
             handle.clone()
@@ -317,7 +310,7 @@ impl PlayerRegistry {
             if let Some((handle, _)) = inner.players.get(id) {
                 handle.clone()
             } else {
-                let (handle, fiber) = Player::launch(id.clone(), services.clone()).await;
+                let (handle, fiber) = Player::launch(id.clone(), core.clone()).await;
                 inner.players.insert(id.clone(), (handle.clone(), fiber));
                 inner.metric_active_players.inc();
                 handle
@@ -325,13 +318,13 @@ impl PlayerRegistry {
         }
     }
 
-    #[tracing::instrument(skip(self, services), name = "PlayerRegistry::connect_to_player")]
-    pub async fn connect_to_player(&self, services: &Services, id: &PlayerId) -> PlayerConnection {
-        let player_handle = self.get_or_launch_player(services, id).await;
+    #[tracing::instrument(skip(self, core), name = "PlayerRegistry::connect_to_player")]
+    pub async fn connect_to_player(&self, core: &LavinaCore, id: &PlayerId) -> PlayerConnection {
+        let player_handle = self.get_or_launch_player(core, id).await;
         player_handle.subscribe().await
     }
 
-    pub async fn shutdown_all(&mut self) -> Result<()> {
+    pub async fn shutdown_all(&self) -> Result<()> {
         let mut inner = self.0.write().await;
         for (i, (k, j)) in inner.players.drain() {
             k.send(ActorCommand::Stop).await;
@@ -365,14 +358,14 @@ struct Player {
     banned_from: HashSet<RoomId>,
     rx: Receiver<(ActorCommand, Span)>,
     handle: PlayerHandle,
-    services: Services,
+    services: LavinaCore,
 }
 impl Player {
-    async fn launch(player_id: PlayerId, services: Services) -> (PlayerHandle, JoinHandle<Player>) {
+    async fn launch(player_id: PlayerId, core: LavinaCore) -> (PlayerHandle, JoinHandle<Player>) {
         let (tx, rx) = channel(32);
         let handle = PlayerHandle { tx };
         let handle_clone = handle.clone();
-        let storage_id = services.storage.retrieve_user_id_by_name(player_id.as_inner()).await.unwrap().unwrap();
+        let storage_id = core.services.storage.retrieve_user_id_by_name(player_id.as_inner()).await.unwrap().unwrap();
         let player = Player {
             player_id,
             storage_id,
@@ -384,7 +377,7 @@ impl Player {
             banned_from: HashSet::new(),
             rx,
             handle,
-            services,
+            services: core,
         };
         let fiber = tokio::task::spawn(player.main_loop());
         (handle_clone, fiber)

crates/lavina-core/src/repo/mod.rs

@@ -1,7 +1,6 @@
 //! Storage and persistence logic.
 
 use std::str::FromStr;
-use std::sync::Arc;
 
 use serde::Deserialize;
 use sqlx::sqlite::SqliteConnectOptions;
@@ -20,9 +19,8 @@ pub struct StorageConfig {
     pub db_path: String,
 }
 
-#[derive(Clone)]
 pub struct Storage {
-    conn: Arc<Mutex<SqliteConnection>>,
+    conn: Mutex<SqliteConnection>,
 }
 impl Storage {
     pub async fn open(config: StorageConfig) -> Result<Storage> {
@@ -34,19 +32,12 @@ impl Storage {
         migrator.run(&mut conn).await?;
         log::info!("Migrations passed");
 
-        let conn = Arc::new(Mutex::new(conn));
+        let conn = Mutex::new(conn);
         Ok(Storage { conn })
     }
 
     pub async fn close(self) {
-        let res = match Arc::try_unwrap(self.conn) {
-            Ok(e) => e,
-            Err(_) => {
-                tracing::error!("failed to acquire DB ownership on shutdown");
-                return;
-            }
-        };
-        let res = res.into_inner();
+        let res = self.conn.into_inner();
         match res.close().await {
             Ok(_) => {}
             Err(e) => {

crates/lavina-core/src/room.rs

@@ -35,8 +35,7 @@ impl RoomId {
 }
 
 /// Shared data structure for storing metadata about rooms.
-#[derive(Clone)]
-pub(crate) struct RoomRegistry(Arc<AsyncRwLock<RoomRegistryInner>>);
+pub(crate) struct RoomRegistry(AsyncRwLock<RoomRegistryInner>);
 
 impl RoomRegistry {
     pub fn new(metrics: &mut MetricRegistry) -> Result<RoomRegistry> {
@@ -46,18 +45,11 @@ impl RoomRegistry {
             rooms: HashMap::new(),
             metric_active_rooms,
         };
-        Ok(RoomRegistry(Arc::new(AsyncRwLock::new(inner))))
+        Ok(RoomRegistry(AsyncRwLock::new(inner)))
     }
 
-    pub fn shutdown(self) -> Result<()> {
-        let res = match Arc::try_unwrap(self.0) {
-            Ok(e) => e,
-            Err(_) => return Err(fail("failed to acquire rooms ownership on shutdown")),
-        };
-        let res = res.into_inner();
-        // TODO drop all rooms
-        drop(res);
-        Ok(())
+    pub fn shutdown(self) {
+        // TODO iterate over rooms and stop them
     }
 
     #[tracing::instrument(skip(self, services), name = "RoomRegistry::get_or_create_room")]

crates/projection-irc/tests/lib.rs

@@ -142,17 +142,13 @@ impl TestServer {
                 rooms: Default::default(),
             },
         };
-        let TestServer {
-            metrics: _,
-            core,
-            server,
-        } = self;
+        let TestServer { core, server } = self;
         server.terminate().await?;
         let storage = core.shutdown().await;
         let mut metrics = MetricsRegistry::new();
         let core = LavinaCore::new(&mut metrics, cluster_config, storage).await?;
         let server = launch(config, core.clone(), metrics.clone()).await.unwrap();
-        Ok(TestServer { metrics, core, server })
+        Ok(TestServer { core, server })
     }
 
     async fn shutdown(self) {

crates/projection-xmpp/tests/lib.rs

@@ -169,7 +169,7 @@ impl TestServer {
         };
         let core = LavinaCore::new(&mut metrics, cluster_config, storage).await?;
         let server = launch(config, core.clone(), metrics.clone()).await.unwrap();
-        Ok(TestServer { metrics, core, server })
+        Ok(TestServer { core, server })
     }
 
     async fn shutdown(self) -> Result<()> {