Use io::Error instead of SendError

src/frame.rs

@@ -165,10 +165,10 @@ where
 ///
 /// # Errors
 ///
-/// * `SendError::MessageTooLarge`: if the message is too large
-/// * `SendError::WriteError`: if the message could not be written
-pub async fn send_raw(send: &mut SendStream, buf: &[u8]) -> Result<(), SendError> {
-    let len = u32::try_from(buf.len()).map_err(|_| SendError::MessageTooLarge)?;
+/// Returns an error if the message is too large or could not be written.
+pub async fn send_raw(send: &mut SendStream, buf: &[u8]) -> io::Result<()> {
+    let len =
+        u32::try_from(buf.len()).map_err(|e| io::Error::new(io::ErrorKind::InvalidData, e))?;
     send.write_all(&len.to_be_bytes()).await?;
     send.write_all(buf).await?;
     Ok(())

src/message.rs

@@ -46,7 +46,7 @@ pub async fn send_request<C, B>(
     buf: &mut Vec<u8>,
     code: C,
     body: B,
-) -> Result<(), SendError>
+) -> io::Result<()>
 where
     C: Into<u32>,
     B: Serialize,
@@ -57,7 +57,7 @@ where
     buf.extend_from_slice(&code.into().to_le_bytes());
     bincode::DefaultOptions::new()
         .serialize_into(buf as &mut dyn Write, &body)
-        .map_err(|_| SendError::MessageTooLarge)?;
+        .map_err(|e| io::Error::new(io::ErrorKind::InvalidData, e))?;
     frame::send_raw(send, buf).await?;
     buf.clear();
     Ok(())