is byte-buffer returned by SerializationTraits<Message, void>::Serialize() read-only?

[mayank...@cohesity.com]

Hi folks

I am referring to this definition - 

/// 1.  static Status Serialize(const Message& msg,

///                             ByteBuffer* buffer,

///                             bool* own_buffer);

Are the memory-regions referred to by slices in 'buffer' (output of Serialize) read-only for rest of gRPC stack? Otherwise my impl of Serialize() would have to copy these memory regions and then create slices & resulting byte-buffer. I want to avoid copy-ing these memory-regions.

Thanks

Mayank

[Yang Gao]

I think you can consider then read-only. The buffer is usually not changed in-place because you do not know whether you are the only owner that holds the ref.

[Mayank Narula]

That makes sense, thanks for confirming.