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lightning-net-tokio: Don't require Arc<PeerManager> #1968

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Jan 18, 2023
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lightning-net-tokio: Don't require Arc<PeerManager> #1968

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41 changes: 33 additions & 8 deletions lightning-net-tokio/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -123,7 +123,11 @@ struct Connection {
id: u64,
}
impl Connection {
async fn poll_event_process<CMH, RMH, OMH, L, UMH>(peer_manager: Arc<peer_handler::PeerManager<SocketDescriptor, CMH, RMH, OMH, L, UMH>>, mut event_receiver: mpsc::Receiver<()>) where
async fn poll_event_process<PM, CMH, RMH, OMH, L, UMH>(
peer_manager: PM,
mut event_receiver: mpsc::Receiver<()>,
) where
PM: Deref<Target = peer_handler::PeerManager<SocketDescriptor, CMH, RMH, OMH, L, UMH>> + 'static + Send + Sync,
CMH: Deref + 'static + Send + Sync,
RMH: Deref + 'static + Send + Sync,
OMH: Deref + 'static + Send + Sync,
Expand All @@ -134,7 +138,7 @@ impl Connection {
OMH::Target: OnionMessageHandler + Send + Sync,
L::Target: Logger + Send + Sync,
UMH::Target: CustomMessageHandler + Send + Sync,
{
{
loop {
if event_receiver.recv().await.is_none() {
return;
Expand All @@ -143,7 +147,14 @@ impl Connection {
}
}

async fn schedule_read<CMH, RMH, OMH, L, UMH>(peer_manager: Arc<peer_handler::PeerManager<SocketDescriptor, CMH, RMH, OMH, L, UMH>>, us: Arc<Mutex<Self>>, mut reader: io::ReadHalf<TcpStream>, mut read_wake_receiver: mpsc::Receiver<()>, mut write_avail_receiver: mpsc::Receiver<()>) where
async fn schedule_read<PM, CMH, RMH, OMH, L, UMH>(
peer_manager: PM,
us: Arc<Mutex<Self>>,
mut reader: io::ReadHalf<TcpStream>,
mut read_wake_receiver: mpsc::Receiver<()>,
mut write_avail_receiver: mpsc::Receiver<()>,
) where
PM: Deref<Target = peer_handler::PeerManager<SocketDescriptor, CMH, RMH, OMH, L, UMH>> + 'static + Send + Sync + Clone,
CMH: Deref + 'static + Send + Sync,
RMH: Deref + 'static + Send + Sync,
OMH: Deref + 'static + Send + Sync,
Expand All @@ -154,10 +165,10 @@ impl Connection {
OMH::Target: OnionMessageHandler + 'static + Send + Sync,
L::Target: Logger + 'static + Send + Sync,
UMH::Target: CustomMessageHandler + 'static + Send + Sync,
{
{
// Create a waker to wake up poll_event_process, above
let (event_waker, event_receiver) = mpsc::channel(1);
tokio::spawn(Self::poll_event_process(Arc::clone(&peer_manager), event_receiver));
tokio::spawn(Self::poll_event_process(peer_manager.clone(), event_receiver));

// 8KB is nice and big but also should never cause any issues with stack overflowing.
let mut buf = [0; 8192];
Expand Down Expand Up @@ -272,7 +283,11 @@ fn get_addr_from_stream(stream: &StdTcpStream) -> Option<NetAddress> {
/// The returned future will complete when the peer is disconnected and associated handling
/// futures are freed, though, because all processing futures are spawned with tokio::spawn, you do
/// not need to poll the provided future in order to make progress.
pub fn setup_inbound<CMH, RMH, OMH, L, UMH>(peer_manager: Arc<peer_handler::PeerManager<SocketDescriptor, CMH, RMH, OMH, L, UMH>>, stream: StdTcpStream) -> impl std::future::Future<Output=()> where
pub fn setup_inbound<PM, CMH, RMH, OMH, L, UMH>(
peer_manager: PM,
stream: StdTcpStream,
) -> impl std::future::Future<Output=()> where
PM: Deref<Target = peer_handler::PeerManager<SocketDescriptor, CMH, RMH, OMH, L, UMH>> + 'static + Send + Sync + Clone,
CMH: Deref + 'static + Send + Sync,
RMH: Deref + 'static + Send + Sync,
OMH: Deref + 'static + Send + Sync,
Expand Down Expand Up @@ -321,7 +336,12 @@ pub fn setup_inbound<CMH, RMH, OMH, L, UMH>(peer_manager: Arc<peer_handler::Peer
/// The returned future will complete when the peer is disconnected and associated handling
/// futures are freed, though, because all processing futures are spawned with tokio::spawn, you do
/// not need to poll the provided future in order to make progress.
pub fn setup_outbound<CMH, RMH, OMH, L, UMH>(peer_manager: Arc<peer_handler::PeerManager<SocketDescriptor, CMH, RMH, OMH, L, UMH>>, their_node_id: PublicKey, stream: StdTcpStream) -> impl std::future::Future<Output=()> where
pub fn setup_outbound<PM, CMH, RMH, OMH, L, UMH>(
peer_manager: PM,
their_node_id: PublicKey,
stream: StdTcpStream,
) -> impl std::future::Future<Output=()> where
PM: Deref<Target = peer_handler::PeerManager<SocketDescriptor, CMH, RMH, OMH, L, UMH>> + 'static + Send + Sync + Clone,
CMH: Deref + 'static + Send + Sync,
RMH: Deref + 'static + Send + Sync,
OMH: Deref + 'static + Send + Sync,
Expand Down Expand Up @@ -399,7 +419,12 @@ pub fn setup_outbound<CMH, RMH, OMH, L, UMH>(peer_manager: Arc<peer_handler::Pee
/// disconnected and associated handling futures are freed, though, because all processing in said
/// futures are spawned with tokio::spawn, you do not need to poll the second future in order to
/// make progress.
pub async fn connect_outbound<CMH, RMH, OMH, L, UMH>(peer_manager: Arc<peer_handler::PeerManager<SocketDescriptor, CMH, RMH, OMH, L, UMH>>, their_node_id: PublicKey, addr: SocketAddr) -> Option<impl std::future::Future<Output=()>> where
pub async fn connect_outbound<PM, CMH, RMH, OMH, L, UMH>(
peer_manager: PM,
their_node_id: PublicKey,
addr: SocketAddr,
) -> Option<impl std::future::Future<Output=()>> where
PM: Deref<Target = peer_handler::PeerManager<SocketDescriptor, CMH, RMH, OMH, L, UMH>> + 'static + Send + Sync + Clone,
CMH: Deref + 'static + Send + Sync,
RMH: Deref + 'static + Send + Sync,
OMH: Deref + 'static + Send + Sync,
Expand Down