Add debug logging of protobuf messages.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/message.ml b/src/message.ml
index 24803fe..3629f0d 100644
--- a/src/message.ml
+++ b/src/message.ml
@@ -8,14 +8,18 @@ let read ic =
     let header = Bytes.create 4 in
     let%lwt () = Lwt_io.read_into_exactly ic header 0 4 in
     let length = EndianBytes.BigEndian.get_int32 header 0 |> Int32.to_int in
+    Lwt_log.debug (Printf.sprintf "Read length: %d\n" length) |> Lwt.ignore_result;
     if length < 0 then failwith (Printf.sprintf "Bad message length: %d" length) else
     let buffer = Bytes.create length in
     let%lwt () = Lwt_io.read_into_exactly ic buffer 0 length in
+    Lwt_log.debug (Util.hexdump buffer |> Printf.sprintf "Read mesage: %s") |> Lwt.ignore_result;
     Lwt.return buffer
 
 let write oc msg =
     let length = Bytes.length msg in
     let length' = Int32.of_int length in
+    Lwt_log.debug (Printf.sprintf "Write length: %d\n" length) |> Lwt.ignore_result;
+    Lwt_log.debug (Util.hexdump msg |> Printf.sprintf "Write message: %s") |> Lwt.ignore_result;
     if length' < 0l then failwith (Printf.sprintf "Bad message length: %d" length) else
     let header = Bytes.create 4 in
     let () = EndianBytes.BigEndian.set_int32 header 0 length' in