commit b3fb90d15612f033b31b9b8aa6f074244005eac8
author pigweed-integration-roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com> Wed Jan 05 17:50:04 2022 +0000
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> Wed Jan 05 17:59:54 2022 +0000
tree 536d6ab88795e78b7c176d61efc8a02fb1e8da65
parent 7d82445e8554149f4894a518b78476838e13cd69

[roll third_party/pigweed] pw_transfer: Rolling window

This updates transfer receivers in C++, Python, and Typescript to extend
their receive window part-way through, with the intention of allowing a
transmitter to continuously stream data without blocking.

To support this, two changes to the transfer protocol are made:

  1. Chunks now have a type field, allowing a transmitter to distinguish
     between an extended window and a request for retransmission. A type
     for an initial transfer packet is also added, but not yet used.

  2. The pending_bytes field is replaced by window_end_offset, telling
     the transmitter what offset they can send up to, rather than how
     many bytes they can send. This is easier to manage on both the
     transmitting and receiving sides.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/73101

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 27e12c5bc7dd788..55333fa304ae7b8
Roller-URL: https://ci.chromium.org/b/8825855913875192993
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8825855913875192993
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I879a0a2c6f9d51aa3a5787798c3aa0ba0c81a741
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/76781
Bot-Commit: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>