quic: add a type tracking sent values

Any given datum communicated to the peer follows a state machine:

  - We do not need to send the this datum.
  - We need to send it, but have not done so.
  - We have sent it, but the peer has not acknowledged it.
  - We have sent it and the peer has acknowledged it.

Data transitions between states in a consistent fashion; for example,
loss of the most recent packet containing a HANDSHAKE_DONE frame
means we should resend the frame in a new packet.

Add a sentVal type which tracks this state machine.

For golang/go#58547

Change-Id: I9de0ef5e482534b8733ef66363bac8f6c0fd3173
Reviewed-on: https://go-review.googlesource.com/c/net/+/498295
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Auto-Submit: Damien Neil <dneil@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2 files changed
tree: e4abeadebbeb651269ad53ae41b754ba9d990a2e
  1. bpf/
  2. context/
  3. dict/
  4. dns/
  5. html/
  6. http/
  7. http2/
  8. icmp/
  9. idna/
  10. internal/
  11. ipv4/
  12. ipv6/
  13. lif/
  14. nettest/
  15. netutil/
  16. proxy/
  17. publicsuffix/
  18. route/
  19. trace/
  20. webdav/
  21. websocket/
  22. xsrftoken/
  23. .gitattributes
  24. .gitignore
  25. codereview.cfg
  26. CONTRIBUTING.md
  27. go.mod
  28. go.sum
  29. LICENSE
  30. PATENTS
  31. README.md
README.md

Go Networking

Go Reference

This repository holds supplementary Go networking libraries.

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