tree 058b81e656a6830464cc7679c0c953347ff6c744
parent b134342d881dd0b748c3322afac92e6a7ccc00bb
author Prashanth Swaminathan <prashanthsw@google.com> 1614806634 -0800
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> 1614964590 +0000

pw_ring_buffer: Varint encode preamble byte

Preamble bytes act as field keys to permit ring buffers to be
proto-compliant after a dering operation. Allow passing in field keys
larger than a single byte and varint-encode them before writing.

Change-Id: I4def047c035fcaa94312e2c156f32694aa6bf9c8
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/35340
Reviewed-by: Ewout van Bekkum <ewout@google.com>
Commit-Queue: Prashanth Swaminathan <prashanthsw@google.com>