commit a493dbf23e52d4d8b4319d5f69244203ad29fead
author Austin Foxley <afoxley@pigweed.infra.roller.google.com> Thu Sep 26 20:43:37 2024 +0000
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> Thu Sep 26 20:43:37 2024 +0000
tree f9e1c9e7b40f22dd7d980619a438e397565408ae
parent 4a67a9b40b95f566f4765e7aacfc18dac5e68bf3

roll: pigweed pw_uart: Add ReadAtLeast and ReadExactly methods

Deprecate the existing Read method in favor of two read variants that
cover more use cases.

ReadExactly maps to the existing Read semantics and blocks until the
buffer is completely filled.

ReadAtLeast allows for blocking until at least the specified bytes are
received, but allows for more to be delivered if available.

ReadAtLeast is useful in cases where you don't know exactly how many
bytes will be returned and don't know exactly when to expect them.

Update mcuxpresso implementation to support this new feature.

Provide default implementations of new variant to ease transition of
existing implementations.

Original-Bug: 368149122
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/236268
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Original-Revision: b4e75393442526d409968e4aac685515944b3e3e

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: f946f6ae13c3bb..b4e75393442526
Roller-URL: https://ci.chromium.org/b/8735701685445106145
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I72d92423fb715a5045f8c3768c29dcf5d3363e7a
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/showcase/sense/+/238170
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
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