Better error handling (#37)

.github/workflows/CI.yml

@@ -69,15 +69,17 @@ jobs:
         if: matrix.rust == 'nightly' || matrix.rust == 'beta'
         with:
           command: build
+          args: --features=ntex-net/tokio
 
       - name: Run lib tests and doc tests
         uses: actions-rs/cargo@v1
         if: matrix.rust == 'nightly' || matrix.rust == 'beta'
         with:
           command: test
+          args: --features=ntex-net/tokio
 
       - name: Generate code coverage
-        run: cargo llvm-cov --no-report
+        run: cargo llvm-cov --no-report --features=ntex-net/tokio
         if: matrix.rust == 'stable'
 
       #- name: Run integration tests
@@ -130,3 +132,4 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: check
+          args: --features=ntex-net/tokio

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changes
 
+## [1.2.0] - 2024-10-16
+
+* Better error handling
+
 ## [1.1.0] - 2024-08-12
 
 * Server graceful shutdown support

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ntex-h2"
-version = "1.1.0"
+version = "1.2.0"
 license = "MIT OR Apache-2.0"
 authors = ["Nikolay Kim <[email protected]>"]
 description = "An HTTP/2 client and server"
@@ -46,9 +46,8 @@ walkdir = "2.3.2"
 serde = "1.0"
 serde_json = "1.0"
 
-ntex = { version = "2", features = ["openssl", "tokio"] }
+ntex = { version = "2", features = ["openssl"] }
 ntex-tls = { version = "2", features = ["openssl"] }
-ntex-net = { version = "2", features = ["tokio"] }
 openssl = "0.10"
 
 # Examples

src/client/connector.rs

@@ -1,6 +1,6 @@
-use std::{cell::Cell, marker::PhantomData, ops};
+use std::{marker::PhantomData, ops};
 
-use ntex_bytes::{ByteString, PoolId, PoolRef};
+use ntex_bytes::{ByteString, PoolId};
 use ntex_http::uri::Scheme;
 use ntex_io::IoBoxed;
 use ntex_net::connect::{self as connect, Address, Connect, Connector as DefaultConnector};
@@ -15,7 +15,6 @@ pub struct Connector<A: Address, T> {
     connector: Pipeline<T>,
     config: Config,
     scheme: Scheme,
-    pub(super) pool: Cell<PoolRef>,
 
     _t: PhantomData<A>,
 }
@@ -35,7 +34,6 @@ where
             connector: Pipeline::new(connector.into_service()),
             config: Config::client(),
             scheme: Scheme::HTTP,
-            pool: Cell::new(PoolId::P5.pool_ref()),
             _t: PhantomData,
         }
     }
@@ -51,7 +49,6 @@ where
             connector: DefaultConnector::default().into(),
             config: Config::client(),
             scheme: Scheme::HTTP,
-            pool: Cell::new(PoolId::P5.pool_ref()),
             _t: PhantomData,
         }
     }
@@ -82,12 +79,13 @@ where
         self
     }
 
+    #[doc(hidden)]
+    #[deprecated]
     /// Set memory pool.
     ///
     /// Use specified memory pool for memory allocations. By default P5
     /// memory pool is used.
-    pub fn memory_pool(&mut self, id: PoolId) -> &mut Self {
-        self.pool.set(id.pool_ref());
+    pub fn memory_pool(&mut self, _: PoolId) -> &mut Self {
         self
     }
 
@@ -102,7 +100,6 @@ where
             connector: connector.into_service().into(),
             config: self.config.clone(),
             scheme: self.scheme.clone(),
-            pool: self.pool.clone(),
             _t: PhantomData,
         }
     }

src/client/simple.rs

@@ -71,6 +71,12 @@ impl SimpleClient {
         }))
     }
 
+    #[inline]
+    /// Get io tag
+    pub fn tag(&self) -> &'static str {
+        self.0.con.tag()
+    }
+
     #[inline]
     /// Send request to the peer
     pub async fn send(

src/client/stream.rs

@@ -4,8 +4,7 @@ use std::{cell::RefCell, collections::VecDeque, fmt, future::poll_fn, pin::Pin,
 use ntex_bytes::Bytes;
 use ntex_http::HeaderMap;
 use ntex_service::{Service, ServiceCtx};
-use ntex_util::future::Either;
-use ntex_util::{task::LocalWaker, HashMap, Stream as FutStream};
+use ntex_util::{future::Either, task::LocalWaker, HashMap, Stream as FutStream};
 
 use crate::error::OperationError;
 use crate::frame::{Reason, StreamId, WindowSize};
@@ -75,21 +74,30 @@ impl Drop for SendStream {
 
 impl SendStream {
     #[inline]
+    /// Get stream id
     pub fn id(&self) -> StreamId {
         self.0.id()
     }
 
+    #[inline]
+    /// Get io tag
+    pub fn tag(&self) -> &'static str {
+        self.0.tag()
+    }
+
     #[inline]
     pub fn stream(&self) -> &StreamRef {
         &self.0
     }
 
     #[inline]
+    /// Get available capacity
     pub fn available_send_capacity(&self) -> WindowSize {
         self.0.available_send_capacity()
     }
 
     #[inline]
+    /// Wait for available capacity
     pub async fn send_capacity(&self) -> Result<WindowSize, OperationError> {
         self.0.send_capacity().await
     }
@@ -101,6 +109,7 @@ impl SendStream {
     }
 
     #[inline]
+    /// Send trailers
     pub fn send_trailers(&self, map: HeaderMap) {
         self.0.send_trailers(map)
     }
@@ -130,10 +139,17 @@ pub struct RecvStream(StreamRef, InflightStorage);
 
 impl RecvStream {
     #[inline]
+    /// Get stream id
     pub fn id(&self) -> StreamId {
         self.0.id()
     }
 
+    #[inline]
+    /// Get io tag
+    pub fn tag(&self) -> &'static str {
+        self.0.tag()
+    }
+
     #[inline]
     pub fn stream(&self) -> &StreamRef {
         &self.0
@@ -148,23 +164,17 @@ impl RecvStream {
     /// the current task for wakeup if the value is not yet available,
     /// and returning None if the stream is exhausted.
     pub fn poll_recv(&self, cx: &mut Context<'_>) -> Poll<Option<Message>> {
-        let mut inner = self.1 .0.inflight.borrow_mut();
-        if let Some(inflight) = inner.get_mut(&self.0.id()) {
+        if let Some(inflight) = self.1 .0.inflight.borrow_mut().get_mut(&self.0.id()) {
             if let Some(msg) = inflight.pop() {
-                let to_remove = match msg.kind() {
-                    MessageKind::Headers { eof, .. } => *eof,
-                    MessageKind::Eof(..) | MessageKind::Disconnect(..) => true,
-                    _ => false,
-                };
-                if to_remove {
-                    inner.remove(&self.0.id());
-                }
                 Poll::Ready(Some(msg))
+            } else if self.0.recv_state().is_closed() {
+                Poll::Ready(None)
             } else {
                 inflight.waker.register(cx.waker());
                 Poll::Pending
             }
         } else {
+            log::warn!("Stream does not exists, {:?}", self.0.id());
             Poll::Ready(None)
         }
     }
@@ -207,11 +217,14 @@ impl Service<Message> for HandleService {
                 MessageKind::Eof(..) | MessageKind::Disconnect(..) => true,
                 _ => false,
             };
+            inflight.push(msg);
+
             if eof {
                 self.0.notify(id);
                 log::debug!("Stream {:?} is closed, notify", id);
             }
-            inflight.push(msg);
+        } else {
+            log::error!("Received message for unknown stream, {:?}", msg);
         }
         Ok(())
     }

src/config.rs

@@ -80,7 +80,7 @@ impl Config {
         let dispatcher_config = DispatcherConfig::default();
         dispatcher_config
             .set_keepalive_timeout(Seconds(0))
-            .set_disconnect_timeout(Seconds(3))
+            .set_disconnect_timeout(Seconds(1))
             .set_frame_read_rate(Seconds(1), Seconds::ZERO, 256);
 
         Config(Rc::new(ConfigInner {
@@ -308,7 +308,7 @@ impl Config {
     ///
     /// To disable timeout set value to 0.
     ///
-    /// By default disconnect timeout is set to 3 seconds.
+    /// By default disconnect timeout is set to 1 seconds.
     pub fn disconnect_timeout(&self, val: Seconds) -> &Self {
         self.0.dispatcher_config.set_disconnect_timeout(val);
         self

src/connection.rs

@@ -138,6 +138,10 @@ impl Connection {
         &self.0.io
     }
 
+    pub(crate) fn tag(&self) -> &'static str {
+        self.0.io.tag()
+    }
+
     pub(crate) fn codec(&self) -> &Codec {
         &self.0.codec
     }
@@ -263,10 +267,13 @@ impl Connection {
 
     pub(crate) fn disconnect_when_ready(&self) {
         if self.0.streams.borrow().is_empty() {
-            log::debug!("All streams are closed, disconnecting");
+            log::trace!("{}: All streams are closed, disconnecting", self.tag());
             self.0.io.close();
         } else {
-            log::debug!("Not all streams are closed, set disconnect flag");
+            log::trace!(
+                "{}: Not all streams are closed, set disconnect flag",
+                self.tag()
+            );
             self.set_flags(ConnectionFlags::DISCONNECT_WHEN_READY);
         }
     }
@@ -282,7 +289,10 @@ impl Connection {
         self.check_error()?;
 
         if !self.can_create_new_stream() {
-            log::warn!("Cannot create new stream, waiting for available streams");
+            log::warn!(
+                "{}: Cannot create new stream, waiting for available streams",
+                self.tag()
+            );
             self.ready().await?
         }
 
@@ -326,7 +336,12 @@ impl Connection {
         let empty = {
             let mut streams = self.0.streams.borrow_mut();
             if let Some(stream) = streams.remove(&id) {
-                log::trace!("Dropping stream {:?} remote: {:?}", id, stream.is_remote());
+                log::trace!(
+                    "{}: Dropping stream {:?} remote: {:?}",
+                    self.tag(),
+                    id,
+                    stream.is_remote()
+                );
                 if stream.is_remote() {
                     self.0
                         .active_remote_streams
@@ -352,7 +367,7 @@ impl Connection {
 
         // Close connection
         if empty && flags.contains(ConnectionFlags::DISCONNECT_WHEN_READY) {
-            log::debug!("All streams are closed, disconnecting");
+            log::trace!("{}: All streams are closed, disconnecting", self.tag());
             self.0.io.close();
             return;
         }
@@ -379,6 +394,10 @@ impl Connection {
 }
 
 impl RecvHalfConnection {
+    pub(crate) fn tag(&self) -> &'static str {
+        self.0.io.tag()
+    }
+
     fn query(&self, id: StreamId) -> Option<StreamRef> {
         self.0.streams.borrow_mut().get(&id).cloned()
     }
@@ -614,7 +633,7 @@ impl RecvHalfConnection {
         &self,
         frm: frame::WindowUpdate,
     ) -> Result<(), Either<ConnectionError, StreamErrorInner>> {
-        log::trace!("processing incoming {:#?}", frm);
+        log::trace!("{}: processing incoming {:#?}", self.tag(), frm);
 
         if frm.stream_id().is_zero() {
             if frm.size_increment() == 0 {
@@ -658,7 +677,7 @@ impl RecvHalfConnection {
         &self,
         frm: frame::Reset,
     ) -> Result<(), Either<ConnectionError, StreamErrorInner>> {
-        log::trace!("processing incoming {:#?}", frm);
+        log::trace!("{}: processing incoming {:#?}", self.tag(), frm);
 
         if frm.stream_id().is_zero() {
             Err(Either::Left(ConnectionError::UnknownStream("RST_STREAM")))
@@ -688,7 +707,8 @@ impl RecvHalfConnection {
         data: &Bytes,
     ) -> HashMap<StreamId, StreamRef> {
         log::trace!(
-            "processing go away with reason: {:?}, data: {:?}",
+            "{}: processing go away with reason: {:?}, data: {:?}",
+            self.tag(),
             reason,
             data.slice(..std::cmp::min(data.len(), 20))
         );
@@ -801,7 +821,7 @@ async fn delay_drop_task(state: Connection) {
         loop {
             if let Some(item) = queue.front() {
                 if item.1 <= now {
-                    log::trace!("dropping {:?} after delay", item.0);
+                    log::trace!("{}: dropping {:?} after delay", state.tag(), item.0);
                     ids.remove(&item.0);
                     queue.pop_front();
                 } else {
@@ -825,7 +845,10 @@ async fn ping(st: Connection, timeout: time::Seconds, io: IoRef) {
     st.set_flags(ConnectionFlags::RECV_PONG);
     loop {
         if st.is_closed() {
-            log::debug!("http client connection is closed, stopping keep-alive task");
+            log::trace!(
+                "{}: http client connection is closed, stopping keep-alive task",
+                st.tag()
+            );
             break;
         }
         sleep(keepalive).await;