upgrade smoltcp

Author: ibigbug

Cargo.toml

@@ -23,7 +23,7 @@ etherparse = "0.16"
 futures = "0.3"
 rand = "0.8"
 spin = "0.9"
-smoltcp = { version = "0.11", default-features = false, features = [
+smoltcp = { version = "0.12", default-features = false, features = [
     "std",
     "log",
     "medium-ip",

src/device.rs

@@ -73,11 +73,11 @@ pub(super) struct VirtualRxToken {
 }
 
 impl RxToken for VirtualRxToken {
-    fn consume<R, F>(mut self, f: F) -> R
+    fn consume<R, F>(self, f: F) -> R
     where
-        F: FnOnce(&mut [u8]) -> R,
+        F: FnOnce(&[u8]) -> R,
     {
-        f(&mut self.buffer[..])
+        f(&self.buffer[..])
     }
 }
 

src/tcp.rs

@@ -200,7 +200,10 @@ impl TcpListenerRunner {
 
             let before_poll = Instant::now();
             let updated_sockets = iface.poll(before_poll, &mut device, &mut socket_set);
-            if updated_sockets {
+            if matches!(
+                updated_sockets,
+                smoltcp::iface::PollResult::SocketStateChanged
+            ) {
                 trace!("VirtDevice::poll costed {}", Instant::now() - before_poll);
             }
 
@@ -499,6 +502,7 @@ impl AsyncWrite for TcpStream {
         cx: &mut Context<'_>,
         buf: &[u8],
     ) -> Poll<std::io::Result<usize>> {
+        error!("TcpStream::poll_write called with {} bytes", buf.len());
         let mut control = self.control.lock();
 
         // If state == Close | Closing | Closed, the TCP stream WR half is closed.