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a636f4e4ad
Because of a compiler bug, the `async` implementations of `delay`/`delay_until`/`timeout`/`timeout_at` produce much larger RAM footprint than they should. Fixes #890. Co-authored-by: Emil Fresk <emil.fresk@gmail.com>
63 lines
2 KiB
Markdown
63 lines
2 KiB
Markdown
# Change Log
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All notable changes to this project will be documented in this file.
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This project adheres to [Semantic Versioning](http://semver.org/).
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For each category, *Added*, *Changed*, *Fixed* add new entries at the top!
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## Unreleased
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### Changed
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- Replace `async` implementations of `delay`/`delay_until`/`timeout`/`timeout_at` with structs to reduce memory usage.
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## v2.0.0 - 2024-05-29
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### Added
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### Changed
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- Full rewrite of the `Monotonic` API.
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- Now split into multiple traits:
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- `Monotonic` - A user-facing trait that defines what the functionality of a monotonic is.
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- `TimerQueueBackend` - The set of functionality a backend must provide in order to be used with the `TimerQueue`.
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- `TimerQueue` is now purely based on ticks and has no concept of real time.
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- The `TimerQueueBasedMonotonic` trait implements a `Monotonic` based on a `TimerQueueBackend`, translating ticks into `Instant` and `Duration`.
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### Fixed
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- Docs: Rename `DelayUs` to `DelayNs` in docs.
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## v1.3.0 - 2024-01-10
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### Changed
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- Using `embedded-hal` 1.0.
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## v1.2.0 - 2023-12-06
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### Changed
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- Docs: Add sanity check to `half_period_counter` code example
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- Deprecate `Monotonic::should_dequeue_check` as it was erroneous
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### Fixed
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- Fix race condition in `half_period_counter::calculate_now`.
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This sadly required a minor API change.
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## v1.1.0 - 2023-12-04
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### Added
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- `half_period_counter` containing utilities for implementing a half-period-counter based monotonic.
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- `should_dequeue_check` to the `Monotonic` trait to handle bugged timers.
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### Changed
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### Fixed
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- **Soundness fix:** `TimerQueue` did not wait long enough in `Duration` based delays. Fixing this sadly required adding a `const TICK_PERIOD` to the `Monotonic` trait, which requires updating all existing implementations.
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- If the queue was non-empty and a new instant was added that was earlier than `head`, then the queue would no pend the monotonic handler. This would cause the new `head` to be dequeued at the wrong time.
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## v1.0.0 - 2023-05-31
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