New handshaking that allows sending data structure bigger than max integer

[seblamydlc]

[snoweye]

Thanks. Would you mind to check if my merging work or not? If I did not merge right, send a PR to my repo.

[snoweye]

I believe I create the conflicts and mess up the PR with my a bit ...

[seblamydlc]

It seems the latest changes fix the problem, I'll run a test on my project and close the PR if it works