handle 0 byte size message...

7 years ago · c88185900d
parent 272eebbbcd
commit c88185900d
1 changed files with 5 additions and 0 deletions
--- a/include/grpc++/impl/codegen/proto_utils.h
+++ b/include/grpc++/impl/codegen/proto_utils.h
@ -188,6 +188,11 @@ Status GenericSerialize(const grpc::protobuf::Message& msg,
      "BufferWriter must be a subclass of io::ZeroCopyOutputStream");
  *own_buffer = true;
  int byte_size = msg.ByteSize();
+  if (byte_size == 0) {
+    grpc_slice empty_slice = g_core_codegen_interface->grpc_empty_slice();
+    *bp = g_core_codegen_interface->grpc_raw_byte_buffer_create(&empty_slice, 1);
+    return g_core_codegen_interface->ok();
+  }
  BufferWriter writer(bp, kGrpcBufferWriterMaxBufferLength, byte_size);
  return msg.SerializeToZeroCopyStream(&writer)
             ? g_core_codegen_interface->ok()