feat(proto): add generic proto reader

proto/src/reader/oneway.rs

@@ -0,0 +1,37 @@
+use crate::message::proto_message::ProtoMessage;
+use crate::reader::protoreader::ProtoReader;
+use crate::reader::utils::AsyncPeek;
+use async_trait::async_trait;
+use tokio::io::{AsyncBufRead, AsyncReadExt};
+
+#[async_trait]
+pub trait OneWayProtoReader<T>
+where
+    T: ProtoMessage,
+{
+    async fn read_proto(&mut self) -> anyhow::Result<T>;
+}
+
+#[async_trait]
+impl<R, T> OneWayProtoReader<T> for ProtoReader<R>
+where
+    R: AsyncBufRead + AsyncPeek + Unpin + Send,
+    T: ProtoMessage,
+{
+    async fn read_proto(&mut self) -> anyhow::Result<T> {
+        let variant = self.inner.read_u8().await?;
+        let length = self.inner.read_i32().await?;
+
+        if length < 4 {
+            return Err(anyhow::anyhow!("Invalid message length"));
+        }
+        if length > self.msg_len_limit {
+            return Err(anyhow::anyhow!("Message length over limit"));
+        }
+
+        let mut data = vec![0u8; (length - 4) as usize];
+        self.inner.read_exact(&mut data).await?;
+
+        T::deserialize(variant, &data)
+    }
+}