Protocol Buffer over socket in C++

Question

I am trying to explore Protocol Buffer (PB) in Linux platform and my coding language is C++. I found examples in the protocol buffer online docs but nothing specific to sock

Answer 1

Unfortunately, protobuf does not provide a way for "packaging" (delimiting) your messages:

If you want to write multiple messages to a single file or stream, it is up to you to keep track of where one message ends and the next begins. The Protocol Buffer wire format is not self-delimiting, so protocol buffer parsers cannot determine where a message ends on their own. The easiest way to solve this problem is to write the size of each message before you write the message itself.

^{(from their documentation)}

So, they basically recommend the same solution you arrived at.