dont lock up the connection whilest sending fragments

prudpv1/src/prudp/socket.rs

@@ -16,6 +16,7 @@ use std::io::Cursor;
 use std::marker::PhantomData;
 use std::ops::Deref;
 use std::sync::{Arc, Weak};
+use tokio::spawn;
 use v_byte_helpers::ReadExtensions;
 use v_byte_helpers::little_endian::read_u16;
 
@@ -68,6 +69,33 @@ impl<E: CryptoHandlerConnectionInstance> InternalConnection<E> {
         prev_val
     }
 
+    async fn close_connection(&mut self) {
+        let mut packet = PRUDPV1Packet {
+            header: PRUDPV1Header {
+                sequence_id: self.next_server_count(),
+                substream_id: 0,
+                session_id: self.session_id,
+                types_and_flags: TypesFlags::default().types(DISCONNECT),
+                destination_port: self.common.socket_addr.virtual_port,
+                source_port: self.server_port,
+                ..Default::default()
+            },
+            payload: Vec::new(),
+            options: vec![FragmentId(0)],
+            ..Default::default()
+        };
+
+        // no need for encryption the, the payload is empty
+
+        packet.set_sizes();
+
+        self.crypto_handler_instance.sign_packet(&mut packet);
+
+        self.send_raw_packet(&packet).await;
+
+        self.delete_connection().await;
+    }
+
     /// Sends a raw packet to a given client on the connection
     ///
     /// a raw packet is one which does not get processed any further(other than to send it
@@ -103,7 +131,7 @@ pub struct ExternalConnection {
 #[derive(Clone)]
 pub struct SendingConnection {
     common: Arc<CommonConnection>,
-    internal: Weak<Mutex<dyn AnyInternalConnection>>,
+    internal: Weak<dyn AnyInternalConnection>,
 }
 
 pub struct CommonSocket {
@@ -166,80 +194,67 @@ pub(super) trait AnyInternalSocket:
 }
 
 #[async_trait]
-pub(super) trait AnyInternalConnection:
-    Send + Sync + Deref<Target = CommonConnection> + 'static
-{
-    async fn send_data_packet(&mut self, data: Vec<u8>);
+pub(super) trait AnyInternalConnection: Send + Sync + 'static {
+    async fn send_data_packet(&self, data: Vec<u8>);
 
-    async fn close_connection(&mut self);
+    async fn close_connection(&self);
 }
 
 #[async_trait]
-impl<T: CryptoHandlerConnectionInstance> AnyInternalConnection for InternalConnection<T> {
-    async fn send_data_packet(&mut self, data: Vec<u8>) {
+impl<T: CryptoHandlerConnectionInstance> AnyInternalConnection for Mutex<InternalConnection<T>> {
+    async fn send_data_packet(&self, data: Vec<u8>) {
         let pieces = data.chunks(600);
         let max_piece = pieces.len() - 1;
         let mut piece_num = 1;
-        for (i, piece) in pieces.enumerate() {
-            let mut packet = PRUDPV1Packet {
-                header: PRUDPV1Header {
-                    sequence_id: self.next_server_count(),
-                    substream_id: 0,
-                    session_id: self.session_id,
-                    types_and_flags: TypesFlags::default().types(DATA).flags(RELIABLE | NEED_ACK),
-                    destination_port: self.common.socket_addr.virtual_port,
-                    source_port: self.server_port,
+        let mut locked = self.lock().await;
+        let packets: Vec<_> = pieces
+            .enumerate()
+            .map(|(i, piece)| {
+                let mut packet = PRUDPV1Packet {
+                    header: PRUDPV1Header {
+                        sequence_id: locked.next_server_count(),
+                        substream_id: 0,
+                        session_id: locked.session_id,
+                        types_and_flags: TypesFlags::default()
+                            .types(DATA)
+                            .flags(RELIABLE | NEED_ACK),
+                        destination_port: locked.common.socket_addr.virtual_port,
+                        source_port: locked.server_port,
+                        ..Default::default()
+                    },
+                    payload: piece.to_owned(),
+                    options: vec![FragmentId(if i == max_piece { 0 } else { piece_num })],
                     ..Default::default()
-                },
-                payload: piece.to_owned(),
-                options: vec![FragmentId(if i == max_piece { 0 } else { piece_num })],
-                ..Default::default()
-            };
+                };
 
-            self.crypto_handler_instance
-                .encrypt_outgoing(0, &mut packet.payload[..]);
+                locked
+                    .crypto_handler_instance
+                    .encrypt_outgoing(0, &mut packet.payload[..]);
 
-            packet.set_sizes();
+                packet.set_sizes();
 
-            self.crypto_handler_instance.sign_packet(&mut packet);
+                locked.crypto_handler_instance.sign_packet(&mut packet);
 
-            self.send_raw_packet(&packet).await;
+                piece_num += 1;
+                packet
+            })
+            .collect();
+        drop(locked);
 
-            self.unacknowleged_packets.push((Instant::now(), packet));
+        for packet in packets {
+            let mut locked = self.lock().await;
+            locked.send_raw_packet(&packet).await;
 
+            locked.unacknowleged_packets.push((Instant::now(), packet));
+            drop(locked);
             sleep(Duration::from_secs(16)).await;
-
-            piece_num += 1;
         }
     }
 
-    async fn close_connection(&mut self) {
-        // jon confirmed that this should be a safe way to dc a client
+    async fn close_connection(&self) {
+        let mut locked = self.lock().await;
 
-        let mut packet = PRUDPV1Packet {
-            header: PRUDPV1Header {
-                sequence_id: self.next_server_count(),
-                substream_id: 0,
-                session_id: self.session_id,
-                types_and_flags: TypesFlags::default().types(DISCONNECT),
-                destination_port: self.common.socket_addr.virtual_port,
-                source_port: self.server_port,
-                ..Default::default()
-            },
-            payload: Vec::new(),
-            options: vec![FragmentId(0)],
-            ..Default::default()
-        };
-
-        // no need for encryption the, the payload is empty
-
-        packet.set_sizes();
-
-        self.crypto_handler_instance.sign_packet(&mut packet);
-
-        self.send_raw_packet(&packet).await;
-
-        self.delete_connection().await;
+        locked.close_connection().await;
     }
 }
 
@@ -403,7 +418,7 @@ impl<T: CryptoHandler> InternalSocket<T> {
 
         let internal = Arc::new(Mutex::new(internal));
 
-        let dyn_internal: Arc<Mutex<dyn AnyInternalConnection>> = internal.clone();
+        let dyn_internal: Arc<dyn AnyInternalConnection> = internal.clone();
 
         let external = ExternalConnection {
             sending: SendingConnection {
@@ -884,10 +899,9 @@ impl ExternalConnection {
 impl SendingConnection {
     pub async fn send(&self, data: Vec<u8>) -> Option<()> {
         let internal = self.internal.upgrade()?;
-
-        let mut internal = internal.lock().await;
-
-        internal.send_data_packet(data).await;
+        spawn(async move {
+            internal.send_data_packet(data).await;
+        });
         Some(())
     }
 
@@ -896,8 +910,6 @@ impl SendingConnection {
             return;
         };
 
-        let mut internal = internal.lock().await;
-
         internal.close_connection().await;
     }
 }

rnex-core/src/executables/common.rs

@@ -22,6 +22,7 @@ const IP_REQ_SERVICE_URL: &str = "https://ipinfo.io/ip";
 
 cfg_if! {
     if #[cfg(feature = "datastore")] {
+        use std::sync::{LazyLock, OnceLock};
         pub static RNEX_DATASTORE_DATABASE_URL: LazyLock<String> = LazyLock::new(|| {
             std::env::var("RNEX_DATASTORE_DATABASE_URL")
                 .expect("RNEX_DATASTORE_DATABASE_URL must be set")