tree 201fad310aac749578afae67136786e8629f0829
parent 360aad190f7013ad7c47fde70f149e41f318bb10
author QUICHE team <quiche-dev@google.com> 1655137025 -0700
committer Copybara-Service <copybara-worker@google.com> 1655137376 -0700

Fix QUIC connection retransmission stats

Because QUIC retransmits data at the stream level (rather than packet level) since QUIC version > 39, the current implementation of bytes_retransmitted and packets_retransmitted is incorrect.

With this change:
- The packet now has a running total of "not retransmission" bytes. We use this new field to populate the `bytes_retransmitted` fields on the connection stats.
- The packet is considered a "retransmission" packet if ANY frame is a retransmission frame (rather than looking at the latest retransmittable frame).

PiperOrigin-RevId: 454625064